Merge "Add SystemUI-tests-utils filegroup to reuse in downstream"
diff --git a/api/current.txt b/api/current.txt
index 2e099ed..8522034 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -2812,12 +2812,12 @@
     method public void onClicked(android.accessibilityservice.AccessibilityButtonController);
   }
 
-  public final class AccessibilityGestureInfo implements android.os.Parcelable {
+  public final class AccessibilityGestureEvent implements android.os.Parcelable {
     method public int describeContents();
     method public int getDisplayId();
     method public int getGestureId();
     method public void writeToParcel(@NonNull android.os.Parcel, int);
-    field @NonNull public static final android.os.Parcelable.Creator<android.accessibilityservice.AccessibilityGestureInfo> CREATOR;
+    field @NonNull public static final android.os.Parcelable.Creator<android.accessibilityservice.AccessibilityGestureEvent> CREATOR;
   }
 
   public abstract class AccessibilityService extends android.app.Service {
@@ -2836,7 +2836,7 @@
     method public abstract void onAccessibilityEvent(android.view.accessibility.AccessibilityEvent);
     method public final android.os.IBinder onBind(android.content.Intent);
     method @Deprecated protected boolean onGesture(int);
-    method public boolean onGesture(@NonNull android.accessibilityservice.AccessibilityGestureInfo);
+    method public boolean onGesture(@NonNull android.accessibilityservice.AccessibilityGestureEvent);
     method public abstract void onInterrupt();
     method protected boolean onKeyEvent(android.view.KeyEvent);
     method protected void onServiceConnected();
@@ -23968,6 +23968,7 @@
     method @Nullable public long[] getThumbnailRange();
     method public boolean hasAttribute(@NonNull String);
     method public boolean hasThumbnail();
+    method public static boolean isSupportedMimeType(@NonNull String);
     method public boolean isThumbnailCompressed();
     method public void saveAttributes() throws java.io.IOException;
     method public void setAttribute(@NonNull String, @Nullable String);
@@ -53040,6 +53041,7 @@
     method @NonNull public android.view.autofill.AutofillId newAutofillId(@NonNull android.view.autofill.AutofillId, long);
     method @NonNull public final android.view.ViewStructure newViewStructure(@NonNull android.view.View);
     method @NonNull public final android.view.ViewStructure newVirtualViewStructure(@NonNull android.view.autofill.AutofillId, long);
+    method public final void notifySessionLifecycle(boolean);
     method public final void notifyViewAppeared(@NonNull android.view.ViewStructure);
     method public final void notifyViewDisappeared(@NonNull android.view.autofill.AutofillId);
     method public final void notifyViewTextChanged(@NonNull android.view.autofill.AutofillId, @Nullable CharSequence);
diff --git a/api/system-current.txt b/api/system-current.txt
index 4859d54..c4c01af 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -8242,6 +8242,7 @@
     method @Nullable @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public android.telephony.IccOpenLogicalChannelResponse iccOpenLogicalChannelBySlot(int, @Nullable String, int);
     method @NonNull @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public String iccTransmitApduBasicChannelBySlot(int, int, int, int, int, int, @Nullable String);
     method @Nullable @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public String iccTransmitApduLogicalChannelBySlot(int, int, int, int, int, int, int, @Nullable String);
+    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public boolean isApplicationOnUicc(int);
     method public boolean isDataConnectivityPossible();
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public boolean isEmergencyAssistanceEnabled();
     method @Deprecated @RequiresPermission(anyOf={android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE, android.Manifest.permission.READ_PHONE_STATE}) public boolean isIdle();
@@ -9516,7 +9517,8 @@
     method public void onReady();
     method public final void onSendSmsResult(int, int, int, int) throws java.lang.RuntimeException;
     method public final void onSmsReceived(int, String, byte[]) throws java.lang.RuntimeException;
-    method public final void onSmsStatusReportReceived(int, int, String, byte[]) throws java.lang.RuntimeException;
+    method @Deprecated public final void onSmsStatusReportReceived(int, int, String, byte[]) throws java.lang.RuntimeException;
+    method public final void onSmsStatusReportReceived(int, String, byte[]) throws java.lang.RuntimeException;
     method public void sendSms(int, int, String, String, boolean, byte[]);
     field public static final int DELIVER_STATUS_ERROR_GENERIC = 2; // 0x2
     field public static final int DELIVER_STATUS_ERROR_NO_MEMORY = 3; // 0x3
diff --git a/api/test-current.txt b/api/test-current.txt
index 6e28f67..3718c4c 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -34,8 +34,8 @@
 
 package android.accessibilityservice {
 
-  public final class AccessibilityGestureInfo implements android.os.Parcelable {
-    ctor public AccessibilityGestureInfo(int, int);
+  public final class AccessibilityGestureEvent implements android.os.Parcelable {
+    ctor public AccessibilityGestureEvent(int, int);
   }
 
 }
diff --git a/cmds/statsd/Android.bp b/cmds/statsd/Android.bp
index c9a4b3b..43058d5 100644
--- a/cmds/statsd/Android.bp
+++ b/cmds/statsd/Android.bp
@@ -51,11 +51,6 @@
     srcs: [
         ":statsd_aidl",
         "src/active_config_list.proto",
-        "src/statsd_config.proto",
-        "src/uid_data.proto",
-        "src/FieldValue.cpp",
-        "src/hash.cpp",
-        "src/stats_log_util.cpp",
         "src/anomaly/AlarmMonitor.cpp",
         "src/anomaly/AlarmTracker.cpp",
         "src/anomaly/AnomalyTracker.cpp",
@@ -63,51 +58,56 @@
         "src/anomaly/subscriber_util.cpp",
         "src/condition/CombinationConditionTracker.cpp",
         "src/condition/condition_util.cpp",
-        "src/condition/SimpleConditionTracker.cpp",
         "src/condition/ConditionWizard.cpp",
+        "src/condition/SimpleConditionTracker.cpp",
         "src/condition/StateConditionTracker.cpp",
         "src/config/ConfigKey.cpp",
         "src/config/ConfigListener.cpp",
         "src/config/ConfigManager.cpp",
         "src/external/GpuStatsPuller.cpp",
         "src/external/Perfetto.cpp",
-        "src/external/StatsPuller.cpp",
+        "src/external/PowerStatsPuller.cpp",
+        "src/external/puller_util.cpp",
+        "src/external/ResourceHealthManagerPuller.cpp",
         "src/external/StatsCallbackPuller.cpp",
         "src/external/StatsCompanionServicePuller.cpp",
-        "src/external/SubsystemSleepStatePuller.cpp",
-        "src/external/PowerStatsPuller.cpp",
-        "src/external/ResourceHealthManagerPuller.cpp",
-        "src/external/TrainInfoPuller.cpp",
+        "src/external/StatsPuller.cpp",
         "src/external/StatsPullerManager.cpp",
-        "src/external/puller_util.cpp",
+        "src/external/SubsystemSleepStatePuller.cpp",
+        "src/external/TrainInfoPuller.cpp",
+        "src/FieldValue.cpp",
+        "src/guardrail/StatsdStats.cpp",
+        "src/hash.cpp",
+        "src/HashableDimensionKey.cpp",
         "src/logd/LogEvent.cpp",
         "src/logd/LogEventQueue.cpp",
         "src/matchers/CombinationLogMatchingTracker.cpp",
         "src/matchers/EventMatcherWizard.cpp",
         "src/matchers/matcher_util.cpp",
         "src/matchers/SimpleLogMatchingTracker.cpp",
-        "src/metrics/MetricProducer.cpp",
-        "src/metrics/EventMetricProducer.cpp",
         "src/metrics/CountMetricProducer.cpp",
-        "src/metrics/DurationMetricProducer.cpp",
-        "src/metrics/duration_helper/OringDurationTracker.cpp",
         "src/metrics/duration_helper/MaxDurationTracker.cpp",
-        "src/metrics/ValueMetricProducer.cpp",
+        "src/metrics/duration_helper/OringDurationTracker.cpp",
+        "src/metrics/DurationMetricProducer.cpp",
+        "src/metrics/EventMetricProducer.cpp",
         "src/metrics/GaugeMetricProducer.cpp",
-        "src/metrics/MetricsManager.cpp",
+        "src/metrics/MetricProducer.cpp",
         "src/metrics/metrics_manager_util.cpp",
+        "src/metrics/MetricsManager.cpp",
+        "src/metrics/ValueMetricProducer.cpp",
         "src/packages/UidMap.cpp",
-        "src/storage/StorageManager.cpp",
+        "src/shell/shell_config.proto",
+        "src/shell/ShellSubscriber.cpp",
+        "src/socket/StatsSocketListener.cpp",
+        "src/stats_log_util.cpp",
+        "src/statscompanion_util.cpp",
+        "src/statsd_config.proto",
         "src/StatsLogProcessor.cpp",
         "src/StatsService.cpp",
-        "src/statscompanion_util.cpp",
+        "src/storage/StorageManager.cpp",
         "src/subscriber/IncidentdReporter.cpp",
         "src/subscriber/SubscriberReporter.cpp",
-        "src/HashableDimensionKey.cpp",
-        "src/guardrail/StatsdStats.cpp",
-        "src/socket/StatsSocketListener.cpp",
-        "src/shell/ShellSubscriber.cpp",
-        "src/shell/shell_config.proto",
+        "src/uid_data.proto",
     ],
 
     local_include_dirs: [
@@ -120,23 +120,23 @@
     ],
 
     shared_libs: [
-        "libbase",
-        "libbinder",
-        "libgraphicsenv",
-        "libincident",
-        "liblog",
-        "libutils",
-        "libservices",
-        "libprotoutil",
-        "libstatslog",
-        "libhidlbase",
         "android.frameworks.stats@1.0",
         "android.hardware.health@2.0",
+        "android.hardware.power.stats@1.0",
         "android.hardware.power@1.0",
         "android.hardware.power@1.1",
-        "android.hardware.power.stats@1.0",
-        "libsysutils",
+        "libbase",
+        "libbinder",
         "libcutils",
+        "libgraphicsenv",
+        "libhidlbase",
+        "libincident",
+        "liblog",
+        "libprotoutil",
+        "libservices",
+        "libstatslog",
+        "libsysutils",
+        "libutils",
     ],
 }
 
@@ -210,54 +210,54 @@
 
         "src/atom_field_options.proto",
         "src/atoms.proto",
-        "src/stats_log.proto",
         "src/shell/shell_data.proto",
+        "src/stats_log.proto",
         "tests/AlarmMonitor_test.cpp",
         "tests/anomaly/AlarmTracker_test.cpp",
         "tests/anomaly/AnomalyTracker_test.cpp",
-        "tests/ConfigManager_test.cpp",
-        "tests/external/puller_util_test.cpp",
-        "tests/external/GpuStatsPuller_test.cpp",
-        "tests/external/IncidentReportArgs_test.cpp",
-        "tests/external/StatsPuller_test.cpp",
-        "tests/indexed_priority_queue_test.cpp",
-        "tests/LogEntryMatcher_test.cpp",
-        "tests/LogEvent_test.cpp",
-        "tests/log_event/LogEventQueue_test.cpp",
-        "tests/MetricsManager_test.cpp",
-        "tests/StatsLogProcessor_test.cpp",
-        "tests/StatsService_test.cpp",
-        "tests/UidMap_test.cpp",
-        "tests/FieldValue_test.cpp",
         "tests/condition/CombinationConditionTracker_test.cpp",
+        "tests/condition/ConditionTimer_test.cpp",
         "tests/condition/SimpleConditionTracker_test.cpp",
         "tests/condition/StateConditionTracker_test.cpp",
-        "tests/condition/ConditionTimer_test.cpp",
-        "tests/metrics/OringDurationTracker_test.cpp",
-        "tests/metrics/MaxDurationTracker_test.cpp",
+        "tests/ConfigManager_test.cpp",
+        "tests/e2e/Alarm_e2e_test.cpp",
+        "tests/e2e/Anomaly_count_e2e_test.cpp",
+        "tests/e2e/Anomaly_duration_sum_e2e_test.cpp",
+        "tests/e2e/Attribution_e2e_test.cpp",
+        "tests/e2e/ConfigTtl_e2e_test.cpp",
+        "tests/e2e/DurationMetric_e2e_test.cpp",
+        "tests/e2e/GaugeMetric_e2e_pull_test.cpp",
+        "tests/e2e/GaugeMetric_e2e_push_test.cpp",
+        "tests/e2e/MetricActivation_e2e_test.cpp",
+        "tests/e2e/MetricConditionLink_e2e_test.cpp",
+        "tests/e2e/PartialBucket_e2e_test.cpp",
+        "tests/e2e/ValueMetric_pull_e2e_test.cpp",
+        "tests/e2e/WakelockDuration_e2e_test.cpp",
+        "tests/external/GpuStatsPuller_test.cpp",
+        "tests/external/IncidentReportArgs_test.cpp",
+        "tests/external/puller_util_test.cpp",
+        "tests/external/StatsPuller_test.cpp",
+        "tests/FieldValue_test.cpp",
+        "tests/guardrail/StatsdStats_test.cpp",
+        "tests/indexed_priority_queue_test.cpp",
+        "tests/log_event/LogEventQueue_test.cpp",
+        "tests/LogEntryMatcher_test.cpp",
+        "tests/LogEvent_test.cpp",
         "tests/metrics/CountMetricProducer_test.cpp",
         "tests/metrics/DurationMetricProducer_test.cpp",
         "tests/metrics/EventMetricProducer_test.cpp",
-        "tests/metrics/ValueMetricProducer_test.cpp",
         "tests/metrics/GaugeMetricProducer_test.cpp",
-        "tests/guardrail/StatsdStats_test.cpp",
+        "tests/metrics/MaxDurationTracker_test.cpp",
         "tests/metrics/metrics_test_helper.cpp",
-        "tests/statsd_test_util.cpp",
-        "tests/storage/StorageManager_test.cpp",
-        "tests/e2e/WakelockDuration_e2e_test.cpp",
-        "tests/e2e/MetricActivation_e2e_test.cpp",
-        "tests/e2e/MetricConditionLink_e2e_test.cpp",
-        "tests/e2e/Alarm_e2e_test.cpp",
-        "tests/e2e/Attribution_e2e_test.cpp",
-        "tests/e2e/GaugeMetric_e2e_push_test.cpp",
-        "tests/e2e/GaugeMetric_e2e_pull_test.cpp",
-        "tests/e2e/ValueMetric_pull_e2e_test.cpp",
-        "tests/e2e/Anomaly_count_e2e_test.cpp",
-        "tests/e2e/Anomaly_duration_sum_e2e_test.cpp",
-        "tests/e2e/ConfigTtl_e2e_test.cpp",
-        "tests/e2e/PartialBucket_e2e_test.cpp",
-        "tests/e2e/DurationMetric_e2e_test.cpp",
+        "tests/metrics/OringDurationTracker_test.cpp",
+        "tests/metrics/ValueMetricProducer_test.cpp",
+        "tests/MetricsManager_test.cpp",
         "tests/shell/ShellSubscriber_test.cpp",
+        "tests/statsd_test_util.cpp",
+        "tests/StatsLogProcessor_test.cpp",
+        "tests/StatsService_test.cpp",
+        "tests/storage/StorageManager_test.cpp",
+        "tests/UidMap_test.cpp",
     ],
 
     static_libs: [
@@ -287,17 +287,17 @@
         // not included in libprotobuf-cpp-lite, so compile it here.
         ":libprotobuf-internal-protos",
 
+        "benchmark/duration_metric_benchmark.cpp",
+        "benchmark/filter_value_benchmark.cpp",
+        "benchmark/get_dimensions_for_condition_benchmark.cpp",
+        "benchmark/hello_world_benchmark.cpp",
+        "benchmark/log_event_benchmark.cpp",
+        "benchmark/main.cpp",
+        "benchmark/metric_util.cpp",
+        "benchmark/stats_write_benchmark.cpp",
         "src/atom_field_options.proto",
         "src/atoms.proto",
         "src/stats_log.proto",
-        "benchmark/main.cpp",
-        "benchmark/hello_world_benchmark.cpp",
-        "benchmark/log_event_benchmark.cpp",
-        "benchmark/stats_write_benchmark.cpp",
-        "benchmark/filter_value_benchmark.cpp",
-        "benchmark/get_dimensions_for_condition_benchmark.cpp",
-        "benchmark/metric_util.cpp",
-        "benchmark/duration_metric_benchmark.cpp",
     ],
 
     proto: {
@@ -337,11 +337,11 @@
     },
 
     srcs: [
-        "src/stats_log.proto",
-        "src/statsd_config.proto",
         "src/atoms.proto",
         "src/shell/shell_config.proto",
         "src/shell/shell_data.proto",
+        "src/stats_log.proto",
+        "src/statsd_config.proto",
     ],
 
     static_libs: [
diff --git a/cmds/statsd/src/FieldValue.cpp b/cmds/statsd/src/FieldValue.cpp
index 1185127..84a0607 100644
--- a/cmds/statsd/src/FieldValue.cpp
+++ b/cmds/statsd/src/FieldValue.cpp
@@ -116,28 +116,13 @@
 }
 
 bool isAttributionUidField(const FieldValue& value) {
-    int field = value.mField.getField() & 0xff007f;
-    if (field == 0x10001 && value.mValue.getType() == INT) {
-        return true;
-    }
-    return false;
+    return isAttributionUidField(value.mField, value.mValue);
 }
 
 int32_t getUidIfExists(const FieldValue& value) {
-    bool isUid = false;
     // the field is uid field if the field is the uid field in attribution node or marked as
     // is_uid in atoms.proto
-    if (isAttributionUidField(value)) {
-        isUid = true;
-    } else {
-        auto it = android::util::AtomsInfo::kAtomsWithUidField.find(value.mField.getTag());
-        if (it != android::util::AtomsInfo::kAtomsWithUidField.end()) {
-            int uidField = it->second;  // uidField is the field number in proto
-            isUid = value.mField.getDepth() == 0 && value.mField.getPosAtDepth(0) == uidField &&
-                    value.mValue.getType() == INT;
-        }
-    }
-
+    bool isUid = isAttributionUidField(value) || isUidField(value.mField, value.mValue);
     return isUid ? value.mValue.int_value : -1;
 }
 
@@ -153,7 +138,7 @@
     auto it = android::util::AtomsInfo::kAtomsWithUidField.find(field.getTag());
 
     if (it != android::util::AtomsInfo::kAtomsWithUidField.end()) {
-        int uidField = it->second;
+        int uidField = it->second;  // uidField is the field number in proto
         return field.getDepth() == 0 && field.getPosAtDepth(0) == uidField &&
                value.getType() == INT;
     }
diff --git a/cmds/statsd/src/atoms.proto b/cmds/statsd/src/atoms.proto
index b50ec8a..f8a3ede 100644
--- a/cmds/statsd/src/atoms.proto
+++ b/cmds/statsd/src/atoms.proto
@@ -335,6 +335,8 @@
         UpdateEngineUpdateAttemptReported update_engine_update_attempt_reported = 225;
         UpdateEngineSuccessfulUpdateReported update_engine_successful_update_reported = 226;
         CameraActionEvent camera_action_event = 227;
+        AppCompatibilityChangeReported app_compatibility_change_reported =
+            228 [(allow_from_any_uid) = true];
     }
 
     // Pulled events will start at field 10000.
@@ -7170,7 +7172,6 @@
     repeated int64 frame_counts = 2;
 }
 
-
 /**
  * Information about camera facing and API level usage.
  * Logged from:
@@ -7195,3 +7196,39 @@
     }
     optional Facing facing = 4;
 }
+
+/**
+ * Logs when a compatibility change is affecting an app.
+ *
+ * Logged from:
+ *   frameworks/base/core/java/android/app/AppCompatCallbacks.java and
+ *   frameworks/base/services/core/java/com/android/server/compat/PlatformCompat.java
+ */
+message AppCompatibilityChangeReported {
+    // The UID of the app being affected by the compatibilty change.
+    optional int32 uid = 1 [(is_uid) = true];
+
+    // The ID of the change affecting the app.
+    optional int64 change_id = 2;
+
+    enum State {
+        UNKNOWN_STATE = 0;
+        ENABLED = 1;
+        DISABLED = 2;
+        LOGGED = 3;
+    }
+
+    // The state of the change - if logged from gating whether it was enabled or disabled, or just
+    // logged otherwise.
+    optional State state = 3;
+
+    enum Source {
+        UNKNOWN_SOURCE = 0;
+        APP_PROCESS = 1;
+        SYSTEM_SERVER = 2;
+    }
+
+    // Where it was logged from.
+    optional Source source = 4;
+
+}
diff --git a/cmds/statsd/src/matchers/matcher_util.cpp b/cmds/statsd/src/matchers/matcher_util.cpp
index 10ac4a1..476fae3 100644
--- a/cmds/statsd/src/matchers/matcher_util.cpp
+++ b/cmds/statsd/src/matchers/matcher_util.cpp
@@ -358,9 +358,10 @@
 
 bool matchesSimple(const UidMap& uidMap, const SimpleAtomMatcher& simpleMatcher,
                    const LogEvent& event) {
-    if (simpleMatcher.field_value_matcher_size() <= 0) {
-        return event.GetTagId() == simpleMatcher.atom_id();
+    if (event.GetTagId() != simpleMatcher.atom_id()) {
+        return false;
     }
+
     for (const auto& matcher : simpleMatcher.field_value_matcher()) {
         if (!matchesSimple(uidMap, matcher, event.getValues(), 0, event.getValues().size(), 0)) {
             return false;
diff --git a/cmds/statsd/tests/LogEntryMatcher_test.cpp b/cmds/statsd/tests/LogEntryMatcher_test.cpp
index 70f0f6f..441d3c8 100644
--- a/cmds/statsd/tests/LogEntryMatcher_test.cpp
+++ b/cmds/statsd/tests/LogEntryMatcher_test.cpp
@@ -330,6 +330,7 @@
     EXPECT_FALSE(matchesSimple(uidMap, *simpleMatcher, event));
 
     // Tag found in kAtomsWithUidField and has matching uid
+    simpleMatcher->set_atom_id(TAG_ID_2);
     EXPECT_TRUE(matchesSimple(uidMap, *simpleMatcher, event2));
 
     // Tag found in kAtomsWithUidField but has non-matching uid
diff --git a/config/hiddenapi-greylist.txt b/config/hiddenapi-greylist.txt
index b4913c8..a6e1f0a 100644
--- a/config/hiddenapi-greylist.txt
+++ b/config/hiddenapi-greylist.txt
@@ -1180,4 +1180,283 @@
 Lcom/android/server/ResettableTimeout$T;-><init>(Lcom/android/server/ResettableTimeout;)V
 Lcom/google/android/gles_jni/EGLImpl;-><init>()V
 Lcom/google/android/gles_jni/GLImpl;-><init>()V
+Lcom/google/android/mms/ContentType;->getAudioTypes()Ljava/util/ArrayList;
+Lcom/google/android/mms/ContentType;->getImageTypes()Ljava/util/ArrayList;
+Lcom/google/android/mms/ContentType;->getVideoTypes()Ljava/util/ArrayList;
+Lcom/google/android/mms/ContentType;->isAudioType(Ljava/lang/String;)Z
+Lcom/google/android/mms/ContentType;->isDrmType(Ljava/lang/String;)Z
+Lcom/google/android/mms/ContentType;->isImageType(Ljava/lang/String;)Z
+Lcom/google/android/mms/ContentType;->isSupportedAudioType(Ljava/lang/String;)Z
+Lcom/google/android/mms/ContentType;->isSupportedImageType(Ljava/lang/String;)Z
+Lcom/google/android/mms/ContentType;->isSupportedType(Ljava/lang/String;)Z
+Lcom/google/android/mms/ContentType;->isSupportedVideoType(Ljava/lang/String;)Z
+Lcom/google/android/mms/ContentType;->isTextType(Ljava/lang/String;)Z
+Lcom/google/android/mms/ContentType;->isVideoType(Ljava/lang/String;)Z
+Lcom/google/android/mms/InvalidHeaderValueException;-><init>(Ljava/lang/String;)V
+Lcom/google/android/mms/MmsException;-><init>()V
+Lcom/google/android/mms/MmsException;-><init>(Ljava/lang/String;)V
+Lcom/google/android/mms/MmsException;-><init>(Ljava/lang/String;Ljava/lang/Throwable;)V
+Lcom/google/android/mms/MmsException;-><init>(Ljava/lang/Throwable;)V
+Lcom/google/android/mms/pdu/AcknowledgeInd;-><init>(I[B)V
+Lcom/google/android/mms/pdu/AcknowledgeInd;-><init>(Lcom/google/android/mms/pdu/PduHeaders;)V
+Lcom/google/android/mms/pdu/AcknowledgeInd;->setReportAllowed(I)V
+Lcom/google/android/mms/pdu/AcknowledgeInd;->setTransactionId([B)V
+Lcom/google/android/mms/pdu/Base64;->decodeBase64([B)[B
+Lcom/google/android/mms/pdu/CharacterSets;->getMibEnumValue(Ljava/lang/String;)I
+Lcom/google/android/mms/pdu/CharacterSets;->getMimeName(I)Ljava/lang/String;
+Lcom/google/android/mms/pdu/DeliveryInd;-><init>(Lcom/google/android/mms/pdu/PduHeaders;)V
+Lcom/google/android/mms/pdu/DeliveryInd;->getDate()J
+Lcom/google/android/mms/pdu/DeliveryInd;->getMessageId()[B
+Lcom/google/android/mms/pdu/DeliveryInd;->getStatus()I
+Lcom/google/android/mms/pdu/DeliveryInd;->getTo()[Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/EncodedStringValue;-><init>(I[B)V
+Lcom/google/android/mms/pdu/EncodedStringValue;-><init>(Ljava/lang/String;)V
+Lcom/google/android/mms/pdu/EncodedStringValue;-><init>([B)V
+Lcom/google/android/mms/pdu/EncodedStringValue;->appendTextString([B)V
+Lcom/google/android/mms/pdu/EncodedStringValue;->concat([Lcom/google/android/mms/pdu/EncodedStringValue;)Ljava/lang/String;
+Lcom/google/android/mms/pdu/EncodedStringValue;->copy(Lcom/google/android/mms/pdu/EncodedStringValue;)Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/EncodedStringValue;->encodeStrings([Ljava/lang/String;)[Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/EncodedStringValue;->extract(Ljava/lang/String;)[Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/EncodedStringValue;->getCharacterSet()I
+Lcom/google/android/mms/pdu/EncodedStringValue;->getString()Ljava/lang/String;
+Lcom/google/android/mms/pdu/EncodedStringValue;->getTextString()[B
+Lcom/google/android/mms/pdu/EncodedStringValue;->setCharacterSet(I)V
+Lcom/google/android/mms/pdu/EncodedStringValue;->setTextString([B)V
+Lcom/google/android/mms/pdu/GenericPdu;-><init>()V
+Lcom/google/android/mms/pdu/GenericPdu;->getFrom()Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/GenericPdu;->getMessageType()I
+Lcom/google/android/mms/pdu/GenericPdu;->getPduHeaders()Lcom/google/android/mms/pdu/PduHeaders;
+Lcom/google/android/mms/pdu/GenericPdu;->mPduHeaders:Lcom/google/android/mms/pdu/PduHeaders;
+Lcom/google/android/mms/pdu/GenericPdu;->setFrom(Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/GenericPdu;->setMessageType(I)V
+Lcom/google/android/mms/pdu/MultimediaMessagePdu;-><init>()V
+Lcom/google/android/mms/pdu/MultimediaMessagePdu;-><init>(Lcom/google/android/mms/pdu/PduHeaders;Lcom/google/android/mms/pdu/PduBody;)V
+Lcom/google/android/mms/pdu/MultimediaMessagePdu;->addTo(Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/MultimediaMessagePdu;->getBody()Lcom/google/android/mms/pdu/PduBody;
+Lcom/google/android/mms/pdu/MultimediaMessagePdu;->getDate()J
+Lcom/google/android/mms/pdu/MultimediaMessagePdu;->getPriority()I
+Lcom/google/android/mms/pdu/MultimediaMessagePdu;->getSubject()Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/MultimediaMessagePdu;->getTo()[Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/MultimediaMessagePdu;->setBody(Lcom/google/android/mms/pdu/PduBody;)V
+Lcom/google/android/mms/pdu/MultimediaMessagePdu;->setDate(J)V
+Lcom/google/android/mms/pdu/MultimediaMessagePdu;->setPriority(I)V
+Lcom/google/android/mms/pdu/MultimediaMessagePdu;->setSubject(Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/NotificationInd;-><init>()V
+Lcom/google/android/mms/pdu/NotificationInd;-><init>(Lcom/google/android/mms/pdu/PduHeaders;)V
+Lcom/google/android/mms/pdu/NotificationInd;->getContentClass()I
+Lcom/google/android/mms/pdu/NotificationInd;->getContentLocation()[B
+Lcom/google/android/mms/pdu/NotificationInd;->getDeliveryReport()I
+Lcom/google/android/mms/pdu/NotificationInd;->getExpiry()J
+Lcom/google/android/mms/pdu/NotificationInd;->getFrom()Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/NotificationInd;->getMessageClass()[B
+Lcom/google/android/mms/pdu/NotificationInd;->getMessageSize()J
+Lcom/google/android/mms/pdu/NotificationInd;->getSubject()Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/NotificationInd;->getTransactionId()[B
+Lcom/google/android/mms/pdu/NotificationInd;->setContentClass(I)V
+Lcom/google/android/mms/pdu/NotificationInd;->setContentLocation([B)V
+Lcom/google/android/mms/pdu/NotificationInd;->setDeliveryReport(I)V
+Lcom/google/android/mms/pdu/NotificationInd;->setExpiry(J)V
+Lcom/google/android/mms/pdu/NotificationInd;->setFrom(Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/NotificationInd;->setMessageClass([B)V
+Lcom/google/android/mms/pdu/NotificationInd;->setMessageSize(J)V
+Lcom/google/android/mms/pdu/NotificationInd;->setSubject(Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/NotificationInd;->setTransactionId([B)V
+Lcom/google/android/mms/pdu/NotifyRespInd;-><init>(I[BI)V
+Lcom/google/android/mms/pdu/NotifyRespInd;-><init>(Lcom/google/android/mms/pdu/PduHeaders;)V
+Lcom/google/android/mms/pdu/NotifyRespInd;->setReportAllowed(I)V
+Lcom/google/android/mms/pdu/NotifyRespInd;->setStatus(I)V
+Lcom/google/android/mms/pdu/NotifyRespInd;->setTransactionId([B)V
+Lcom/google/android/mms/pdu/PduBody;-><init>()V
+Lcom/google/android/mms/pdu/PduBody;->addPart(ILcom/google/android/mms/pdu/PduPart;)V
+Lcom/google/android/mms/pdu/PduBody;->addPart(Lcom/google/android/mms/pdu/PduPart;)Z
+Lcom/google/android/mms/pdu/PduBody;->getPart(I)Lcom/google/android/mms/pdu/PduPart;
+Lcom/google/android/mms/pdu/PduBody;->getPartByContentId(Ljava/lang/String;)Lcom/google/android/mms/pdu/PduPart;
+Lcom/google/android/mms/pdu/PduBody;->getPartByContentLocation(Ljava/lang/String;)Lcom/google/android/mms/pdu/PduPart;
+Lcom/google/android/mms/pdu/PduBody;->getPartByFileName(Ljava/lang/String;)Lcom/google/android/mms/pdu/PduPart;
+Lcom/google/android/mms/pdu/PduBody;->getPartByName(Ljava/lang/String;)Lcom/google/android/mms/pdu/PduPart;
+Lcom/google/android/mms/pdu/PduBody;->getPartIndex(Lcom/google/android/mms/pdu/PduPart;)I
+Lcom/google/android/mms/pdu/PduBody;->getPartsNum()I
+Lcom/google/android/mms/pdu/PduBody;->removePart(I)Lcom/google/android/mms/pdu/PduPart;
+Lcom/google/android/mms/pdu/PduComposer$BufferStack;->copy()V
+Lcom/google/android/mms/pdu/PduComposer$BufferStack;->mark()Lcom/google/android/mms/pdu/PduComposer$PositionMarker;
+Lcom/google/android/mms/pdu/PduComposer$BufferStack;->newbuf()V
+Lcom/google/android/mms/pdu/PduComposer$BufferStack;->pop()V
+Lcom/google/android/mms/pdu/PduComposer$PositionMarker;->getLength()I
+Lcom/google/android/mms/pdu/PduComposer;-><init>(Landroid/content/Context;Lcom/google/android/mms/pdu/GenericPdu;)V
+Lcom/google/android/mms/pdu/PduComposer;->appendEncodedString(Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/PduComposer;->appendHeader(I)I
+Lcom/google/android/mms/pdu/PduComposer;->appendLongInteger(J)V
+Lcom/google/android/mms/pdu/PduComposer;->appendOctet(I)V
+Lcom/google/android/mms/pdu/PduComposer;->appendQuotedString(Ljava/lang/String;)V
+Lcom/google/android/mms/pdu/PduComposer;->appendQuotedString([B)V
+Lcom/google/android/mms/pdu/PduComposer;->appendShortInteger(I)V
+Lcom/google/android/mms/pdu/PduComposer;->appendTextString(Ljava/lang/String;)V
+Lcom/google/android/mms/pdu/PduComposer;->appendTextString([B)V
+Lcom/google/android/mms/pdu/PduComposer;->appendUintvarInteger(J)V
+Lcom/google/android/mms/pdu/PduComposer;->appendValueLength(J)V
+Lcom/google/android/mms/pdu/PduComposer;->arraycopy([BII)V
+Lcom/google/android/mms/pdu/PduComposer;->make()[B
+Lcom/google/android/mms/pdu/PduComposer;->mContentTypeMap:Ljava/util/HashMap;
+Lcom/google/android/mms/pdu/PduComposer;->mMessage:Ljava/io/ByteArrayOutputStream;
+Lcom/google/android/mms/pdu/PduComposer;->mPdu:Lcom/google/android/mms/pdu/GenericPdu;
+Lcom/google/android/mms/pdu/PduComposer;->mPduHeader:Lcom/google/android/mms/pdu/PduHeaders;
+Lcom/google/android/mms/pdu/PduComposer;->mPosition:I
+Lcom/google/android/mms/pdu/PduComposer;->mResolver:Landroid/content/ContentResolver;
+Lcom/google/android/mms/pdu/PduComposer;->mStack:Lcom/google/android/mms/pdu/PduComposer$BufferStack;
+Lcom/google/android/mms/pdu/PduContentTypes;->contentTypes:[Ljava/lang/String;
+Lcom/google/android/mms/pdu/PduHeaders;-><init>()V
+Lcom/google/android/mms/pdu/PduHeaders;->appendEncodedStringValue(Lcom/google/android/mms/pdu/EncodedStringValue;I)V
+Lcom/google/android/mms/pdu/PduHeaders;->getEncodedStringValue(I)Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/PduHeaders;->getEncodedStringValues(I)[Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/PduHeaders;->getLongInteger(I)J
+Lcom/google/android/mms/pdu/PduHeaders;->getOctet(I)I
+Lcom/google/android/mms/pdu/PduHeaders;->getTextString(I)[B
+Lcom/google/android/mms/pdu/PduHeaders;->setEncodedStringValue(Lcom/google/android/mms/pdu/EncodedStringValue;I)V
+Lcom/google/android/mms/pdu/PduHeaders;->setLongInteger(JI)V
+Lcom/google/android/mms/pdu/PduHeaders;->setOctet(II)V
+Lcom/google/android/mms/pdu/PduParser;-><init>([BZ)V
+Lcom/google/android/mms/pdu/PduParser;->checkPartPosition(Lcom/google/android/mms/pdu/PduPart;)I
+Lcom/google/android/mms/pdu/PduParser;->log(Ljava/lang/String;)V
+Lcom/google/android/mms/pdu/PduParser;->parse()Lcom/google/android/mms/pdu/GenericPdu;
+Lcom/google/android/mms/pdu/PduParser;->parseContentType(Ljava/io/ByteArrayInputStream;Ljava/util/HashMap;)[B
+Lcom/google/android/mms/pdu/PduParser;->parsePartHeaders(Ljava/io/ByteArrayInputStream;Lcom/google/android/mms/pdu/PduPart;I)Z
+Lcom/google/android/mms/pdu/PduParser;->parseShortInteger(Ljava/io/ByteArrayInputStream;)I
+Lcom/google/android/mms/pdu/PduParser;->parseUnsignedInt(Ljava/io/ByteArrayInputStream;)I
+Lcom/google/android/mms/pdu/PduParser;->parseValueLength(Ljava/io/ByteArrayInputStream;)I
+Lcom/google/android/mms/pdu/PduParser;->parseWapString(Ljava/io/ByteArrayInputStream;I)[B
+Lcom/google/android/mms/pdu/PduPart;-><init>()V
+Lcom/google/android/mms/pdu/PduPart;->generateLocation()Ljava/lang/String;
+Lcom/google/android/mms/pdu/PduPart;->getCharset()I
+Lcom/google/android/mms/pdu/PduPart;->getContentDisposition()[B
+Lcom/google/android/mms/pdu/PduPart;->getContentId()[B
+Lcom/google/android/mms/pdu/PduPart;->getContentLocation()[B
+Lcom/google/android/mms/pdu/PduPart;->getContentTransferEncoding()[B
+Lcom/google/android/mms/pdu/PduPart;->getContentType()[B
+Lcom/google/android/mms/pdu/PduPart;->getData()[B
+Lcom/google/android/mms/pdu/PduPart;->getDataLength()I
+Lcom/google/android/mms/pdu/PduPart;->getDataUri()Landroid/net/Uri;
+Lcom/google/android/mms/pdu/PduPart;->getFilename()[B
+Lcom/google/android/mms/pdu/PduPart;->getName()[B
+Lcom/google/android/mms/pdu/PduPart;->setCharset(I)V
+Lcom/google/android/mms/pdu/PduPart;->setContentDisposition([B)V
+Lcom/google/android/mms/pdu/PduPart;->setContentId([B)V
+Lcom/google/android/mms/pdu/PduPart;->setContentLocation([B)V
+Lcom/google/android/mms/pdu/PduPart;->setContentTransferEncoding([B)V
+Lcom/google/android/mms/pdu/PduPart;->setContentType([B)V
+Lcom/google/android/mms/pdu/PduPart;->setData([B)V
+Lcom/google/android/mms/pdu/PduPart;->setDataUri(Landroid/net/Uri;)V
+Lcom/google/android/mms/pdu/PduPart;->setFilename([B)V
+Lcom/google/android/mms/pdu/PduPart;->setName([B)V
+Lcom/google/android/mms/pdu/PduPersister;->ADDRESS_FIELDS:[I
+Lcom/google/android/mms/pdu/PduPersister;->CHARSET_COLUMN_NAME_MAP:Ljava/util/HashMap;
+Lcom/google/android/mms/pdu/PduPersister;->ENCODED_STRING_COLUMN_NAME_MAP:Ljava/util/HashMap;
+Lcom/google/android/mms/pdu/PduPersister;->getByteArrayFromPartColumn(Landroid/database/Cursor;I)[B
+Lcom/google/android/mms/pdu/PduPersister;->getBytes(Ljava/lang/String;)[B
+Lcom/google/android/mms/pdu/PduPersister;->getIntegerFromPartColumn(Landroid/database/Cursor;I)Ljava/lang/Integer;
+Lcom/google/android/mms/pdu/PduPersister;->getPartContentType(Lcom/google/android/mms/pdu/PduPart;)Ljava/lang/String;
+Lcom/google/android/mms/pdu/PduPersister;->getPduPersister(Landroid/content/Context;)Lcom/google/android/mms/pdu/PduPersister;
+Lcom/google/android/mms/pdu/PduPersister;->getPendingMessages(J)Landroid/database/Cursor;
+Lcom/google/android/mms/pdu/PduPersister;->load(Landroid/net/Uri;)Lcom/google/android/mms/pdu/GenericPdu;
+Lcom/google/android/mms/pdu/PduPersister;->loadRecipients(ILjava/util/HashSet;Ljava/util/HashMap;Z)V
+Lcom/google/android/mms/pdu/PduPersister;->LONG_COLUMN_NAME_MAP:Ljava/util/HashMap;
+Lcom/google/android/mms/pdu/PduPersister;->mContentResolver:Landroid/content/ContentResolver;
+Lcom/google/android/mms/pdu/PduPersister;->mContext:Landroid/content/Context;
+Lcom/google/android/mms/pdu/PduPersister;->MESSAGE_BOX_MAP:Ljava/util/HashMap;
+Lcom/google/android/mms/pdu/PduPersister;->move(Landroid/net/Uri;Landroid/net/Uri;)Landroid/net/Uri;
+Lcom/google/android/mms/pdu/PduPersister;->mTelephonyManager:Landroid/telephony/TelephonyManager;
+Lcom/google/android/mms/pdu/PduPersister;->OCTET_COLUMN_NAME_MAP:Ljava/util/HashMap;
+Lcom/google/android/mms/pdu/PduPersister;->PART_PROJECTION:[Ljava/lang/String;
+Lcom/google/android/mms/pdu/PduPersister;->PDU_CACHE_INSTANCE:Lcom/google/android/mms/util/PduCache;
+Lcom/google/android/mms/pdu/PduPersister;->persist(Lcom/google/android/mms/pdu/GenericPdu;Landroid/net/Uri;ZZLjava/util/HashMap;)Landroid/net/Uri;
+Lcom/google/android/mms/pdu/PduPersister;->persistAddress(JI[Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/PduPersister;->persistPart(Lcom/google/android/mms/pdu/PduPart;JLjava/util/HashMap;)Landroid/net/Uri;
+Lcom/google/android/mms/pdu/PduPersister;->TEXT_STRING_COLUMN_NAME_MAP:Ljava/util/HashMap;
+Lcom/google/android/mms/pdu/PduPersister;->toIsoString([B)Ljava/lang/String;
+Lcom/google/android/mms/pdu/PduPersister;->updateAddress(JI[Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/PduPersister;->updateHeaders(Landroid/net/Uri;Lcom/google/android/mms/pdu/SendReq;)V
+Lcom/google/android/mms/pdu/PduPersister;->updateParts(Landroid/net/Uri;Lcom/google/android/mms/pdu/PduBody;Ljava/util/HashMap;)V
+Lcom/google/android/mms/pdu/QuotedPrintable;->decodeQuotedPrintable([B)[B
+Lcom/google/android/mms/pdu/ReadOrigInd;-><init>(Lcom/google/android/mms/pdu/PduHeaders;)V
+Lcom/google/android/mms/pdu/ReadOrigInd;->getMessageId()[B
+Lcom/google/android/mms/pdu/ReadOrigInd;->getReadStatus()I
+Lcom/google/android/mms/pdu/ReadRecInd;-><init>(Lcom/google/android/mms/pdu/EncodedStringValue;[BII[Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/ReadRecInd;-><init>(Lcom/google/android/mms/pdu/PduHeaders;)V
+Lcom/google/android/mms/pdu/ReadRecInd;->getMessageId()[B
+Lcom/google/android/mms/pdu/ReadRecInd;->setDate(J)V
+Lcom/google/android/mms/pdu/RetrieveConf;-><init>()V
+Lcom/google/android/mms/pdu/RetrieveConf;-><init>(Lcom/google/android/mms/pdu/PduHeaders;Lcom/google/android/mms/pdu/PduBody;)V
+Lcom/google/android/mms/pdu/RetrieveConf;->addCc(Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/RetrieveConf;->getCc()[Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/RetrieveConf;->getContentType()[B
+Lcom/google/android/mms/pdu/RetrieveConf;->getDeliveryReport()I
+Lcom/google/android/mms/pdu/RetrieveConf;->getFrom()Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/RetrieveConf;->getMessageClass()[B
+Lcom/google/android/mms/pdu/RetrieveConf;->getMessageId()[B
+Lcom/google/android/mms/pdu/RetrieveConf;->getReadReport()I
+Lcom/google/android/mms/pdu/RetrieveConf;->getRetrieveStatus()I
+Lcom/google/android/mms/pdu/RetrieveConf;->getRetrieveText()Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/RetrieveConf;->getTransactionId()[B
+Lcom/google/android/mms/pdu/RetrieveConf;->setContentType([B)V
+Lcom/google/android/mms/pdu/RetrieveConf;->setDeliveryReport(I)V
+Lcom/google/android/mms/pdu/RetrieveConf;->setFrom(Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/RetrieveConf;->setMessageClass([B)V
+Lcom/google/android/mms/pdu/RetrieveConf;->setMessageId([B)V
+Lcom/google/android/mms/pdu/RetrieveConf;->setReadReport(I)V
+Lcom/google/android/mms/pdu/RetrieveConf;->setRetrieveStatus(I)V
+Lcom/google/android/mms/pdu/RetrieveConf;->setRetrieveText(Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/RetrieveConf;->setTransactionId([B)V
+Lcom/google/android/mms/pdu/SendConf;-><init>()V
+Lcom/google/android/mms/pdu/SendConf;-><init>(Lcom/google/android/mms/pdu/PduHeaders;)V
+Lcom/google/android/mms/pdu/SendConf;->getMessageId()[B
+Lcom/google/android/mms/pdu/SendConf;->getResponseStatus()I
+Lcom/google/android/mms/pdu/SendConf;->getTransactionId()[B
+Lcom/google/android/mms/pdu/SendReq;-><init>()V
+Lcom/google/android/mms/pdu/SendReq;-><init>(Lcom/google/android/mms/pdu/PduHeaders;Lcom/google/android/mms/pdu/PduBody;)V
+Lcom/google/android/mms/pdu/SendReq;->addBcc(Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/SendReq;->addCc(Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/SendReq;->getBcc()[Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/SendReq;->getCc()[Lcom/google/android/mms/pdu/EncodedStringValue;
+Lcom/google/android/mms/pdu/SendReq;->getContentType()[B
+Lcom/google/android/mms/pdu/SendReq;->getDeliveryReport()I
+Lcom/google/android/mms/pdu/SendReq;->getExpiry()J
+Lcom/google/android/mms/pdu/SendReq;->getMessageClass()[B
+Lcom/google/android/mms/pdu/SendReq;->getMessageSize()J
+Lcom/google/android/mms/pdu/SendReq;->getReadReport()I
+Lcom/google/android/mms/pdu/SendReq;->getTransactionId()[B
+Lcom/google/android/mms/pdu/SendReq;->setBcc([Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/SendReq;->setCc([Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/SendReq;->setContentType([B)V
+Lcom/google/android/mms/pdu/SendReq;->setDeliveryReport(I)V
+Lcom/google/android/mms/pdu/SendReq;->setExpiry(J)V
+Lcom/google/android/mms/pdu/SendReq;->setMessageClass([B)V
+Lcom/google/android/mms/pdu/SendReq;->setMessageSize(J)V
+Lcom/google/android/mms/pdu/SendReq;->setReadReport(I)V
+Lcom/google/android/mms/pdu/SendReq;->setTo([Lcom/google/android/mms/pdu/EncodedStringValue;)V
+Lcom/google/android/mms/pdu/SendReq;->setTransactionId([B)V
+Lcom/google/android/mms/util/AbstractCache;-><init>()V
+Lcom/google/android/mms/util/AbstractCache;->get(Ljava/lang/Object;)Ljava/lang/Object;
+Lcom/google/android/mms/util/AbstractCache;->purge(Ljava/lang/Object;)Ljava/lang/Object;
+Lcom/google/android/mms/util/AbstractCache;->purgeAll()V
+Lcom/google/android/mms/util/AbstractCache;->put(Ljava/lang/Object;Ljava/lang/Object;)Z
+Lcom/google/android/mms/util/DownloadDrmHelper;->isDrmConvertNeeded(Ljava/lang/String;)Z
+Lcom/google/android/mms/util/DownloadDrmHelper;->modifyDrmFwLockFileExtension(Ljava/lang/String;)Ljava/lang/String;
+Lcom/google/android/mms/util/DrmConvertSession;->close(Ljava/lang/String;)I
+Lcom/google/android/mms/util/DrmConvertSession;->convert([BI)[B
+Lcom/google/android/mms/util/DrmConvertSession;->open(Landroid/content/Context;Ljava/lang/String;)Lcom/google/android/mms/util/DrmConvertSession;
+Lcom/google/android/mms/util/PduCache;-><init>()V
+Lcom/google/android/mms/util/PduCache;->getInstance()Lcom/google/android/mms/util/PduCache;
+Lcom/google/android/mms/util/PduCache;->isUpdating(Landroid/net/Uri;)Z
+Lcom/google/android/mms/util/PduCache;->purge(Landroid/net/Uri;)Lcom/google/android/mms/util/PduCacheEntry;
+Lcom/google/android/mms/util/PduCache;->purge(Ljava/lang/Object;)Ljava/lang/Object;
+Lcom/google/android/mms/util/PduCache;->purgeAll()V
+Lcom/google/android/mms/util/PduCacheEntry;-><init>(Lcom/google/android/mms/pdu/GenericPdu;IJ)V
+Lcom/google/android/mms/util/PduCacheEntry;->getMessageBox()I
+Lcom/google/android/mms/util/PduCacheEntry;->getPdu()Lcom/google/android/mms/pdu/GenericPdu;
+Lcom/google/android/mms/util/PduCacheEntry;->getThreadId()J
+Lcom/google/android/mms/util/SqliteWrapper;->checkSQLiteException(Landroid/content/Context;Landroid/database/sqlite/SQLiteException;)V
+Lcom/google/android/mms/util/SqliteWrapper;->delete(Landroid/content/Context;Landroid/content/ContentResolver;Landroid/net/Uri;Ljava/lang/String;[Ljava/lang/String;)I
+Lcom/google/android/mms/util/SqliteWrapper;->insert(Landroid/content/Context;Landroid/content/ContentResolver;Landroid/net/Uri;Landroid/content/ContentValues;)Landroid/net/Uri;
+Lcom/google/android/mms/util/SqliteWrapper;->query(Landroid/content/Context;Landroid/content/ContentResolver;Landroid/net/Uri;[Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)Landroid/database/Cursor;
+Lcom/google/android/mms/util/SqliteWrapper;->requery(Landroid/content/Context;Landroid/database/Cursor;)Z
+Lcom/google/android/mms/util/SqliteWrapper;->update(Landroid/content/Context;Landroid/content/ContentResolver;Landroid/net/Uri;Landroid/content/ContentValues;Ljava/lang/String;[Ljava/lang/String;)I
 Lcom/google/android/util/AbstractMessageParser$Token$Type;->values()[Lcom/google/android/util/AbstractMessageParser$Token$Type;
diff --git a/core/java/android/accessibilityservice/AccessibilityGestureInfo.aidl b/core/java/android/accessibilityservice/AccessibilityGestureEvent.aidl
similarity index 94%
rename from core/java/android/accessibilityservice/AccessibilityGestureInfo.aidl
rename to core/java/android/accessibilityservice/AccessibilityGestureEvent.aidl
index 2539051..58a9b64 100644
--- a/core/java/android/accessibilityservice/AccessibilityGestureInfo.aidl
+++ b/core/java/android/accessibilityservice/AccessibilityGestureEvent.aidl
@@ -16,4 +16,4 @@
 
 package android.accessibilityservice;
 
-parcelable AccessibilityGestureInfo;
+parcelable AccessibilityGestureEvent;
diff --git a/core/java/android/accessibilityservice/AccessibilityGestureInfo.java b/core/java/android/accessibilityservice/AccessibilityGestureEvent.java
similarity index 86%
rename from core/java/android/accessibilityservice/AccessibilityGestureInfo.java
rename to core/java/android/accessibilityservice/AccessibilityGestureEvent.java
index 28c1dea..b540175 100644
--- a/core/java/android/accessibilityservice/AccessibilityGestureInfo.java
+++ b/core/java/android/accessibilityservice/AccessibilityGestureEvent.java
@@ -44,17 +44,17 @@
 import java.lang.annotation.RetentionPolicy;
 
 /**
- * This class describes the gesture information including gesture id and which display it happens
+ * This class describes the gesture event including gesture id and which display it happens
  * on.
  * <p>
  * <strong>Note:</strong> Accessibility services setting the
  * {@link android.accessibilityservice.AccessibilityServiceInfo#FLAG_REQUEST_TOUCH_EXPLORATION_MODE}
  * flag can receive gestures.
  *
- * @see AccessibilityService#onGesture(AccessibilityGestureInfo)
+ * @see AccessibilityService#onGesture(AccessibilityGestureEvent)
  */
 
-public final class AccessibilityGestureInfo implements Parcelable {
+public final class AccessibilityGestureEvent implements Parcelable {
 
     /** @hide */
     @IntDef(prefix = { "GESTURE_" }, value = {
@@ -84,12 +84,12 @@
 
     /** @hide */
     @TestApi
-    public AccessibilityGestureInfo(int gestureId, int displayId) {
+    public AccessibilityGestureEvent(int gestureId, int displayId) {
         mGestureId = gestureId;
         mDisplayId = displayId;
     }
 
-    private AccessibilityGestureInfo(@NonNull Parcel parcel) {
+    private AccessibilityGestureEvent(@NonNull Parcel parcel) {
         mGestureId = parcel.readInt();
         mDisplayId = parcel.readInt();
     }
@@ -117,7 +117,7 @@
     @NonNull
     @Override
     public String toString() {
-        StringBuilder stringBuilder = new StringBuilder("AccessibilityGestureInfo[");
+        StringBuilder stringBuilder = new StringBuilder("AccessibilityGestureEvent[");
         stringBuilder.append("gestureId: ").append(mGestureId);
         stringBuilder.append(", ");
         stringBuilder.append("displayId: ").append(mDisplayId);
@@ -142,14 +142,14 @@
     /**
      * @see Parcelable.Creator
      */
-    public static final @NonNull Parcelable.Creator<AccessibilityGestureInfo> CREATOR =
-            new Parcelable.Creator<AccessibilityGestureInfo>() {
-        public AccessibilityGestureInfo createFromParcel(Parcel parcel) {
-            return new AccessibilityGestureInfo(parcel);
+    public static final @NonNull Parcelable.Creator<AccessibilityGestureEvent> CREATOR =
+            new Parcelable.Creator<AccessibilityGestureEvent>() {
+        public AccessibilityGestureEvent createFromParcel(Parcel parcel) {
+            return new AccessibilityGestureEvent(parcel);
         }
 
-        public AccessibilityGestureInfo[] newArray(int size) {
-            return new AccessibilityGestureInfo[size];
+        public AccessibilityGestureEvent[] newArray(int size) {
+            return new AccessibilityGestureEvent[size];
         }
     };
 
diff --git a/core/java/android/accessibilityservice/AccessibilityService.java b/core/java/android/accessibilityservice/AccessibilityService.java
index a8daf91..d3c274f 100644
--- a/core/java/android/accessibilityservice/AccessibilityService.java
+++ b/core/java/android/accessibilityservice/AccessibilityService.java
@@ -382,7 +382,7 @@
         void onServiceConnected();
         void init(int connectionId, IBinder windowToken);
         /** The detected gesture information for different displays */
-        boolean onGesture(AccessibilityGestureInfo gestureInfo);
+        boolean onGesture(AccessibilityGestureEvent gestureInfo);
         boolean onKeyEvent(KeyEvent event);
         /** Magnification changed callbacks for different displays */
         void onMagnificationChanged(int displayId, @NonNull Region region,
@@ -517,7 +517,7 @@
     }
 
     /**
-     * Called by {@link #onGesture(AccessibilityGestureInfo)} when the user performs a specific
+     * Called by {@link #onGesture(AccessibilityGestureEvent)} when the user performs a specific
      * gesture on the default display.
      *
      * <strong>Note:</strong> To receive gestures an accessibility service must
@@ -528,7 +528,7 @@
      * @param gestureId The unique id of the performed gesture.
      *
      * @return Whether the gesture was handled.
-     * @deprecated Override {@link #onGesture(AccessibilityGestureInfo)} instead.
+     * @deprecated Override {@link #onGesture(AccessibilityGestureEvent)} instead.
      *
      * @see #GESTURE_SWIPE_UP
      * @see #GESTURE_SWIPE_UP_AND_LEFT
@@ -564,14 +564,14 @@
      * <strong>Note:</strong> The default implementation calls {@link #onGesture(int)} when the
      * touch screen is default display.
      *
-     * @param gestureInfo The information of gesture.
+     * @param gestureEvent The information of gesture.
      *
      * @return Whether the gesture was handled.
      *
      */
-    public boolean onGesture(@NonNull AccessibilityGestureInfo gestureInfo) {
-        if (gestureInfo.getDisplayId() == Display.DEFAULT_DISPLAY) {
-            onGesture(gestureInfo.getGestureId());
+    public boolean onGesture(@NonNull AccessibilityGestureEvent gestureEvent) {
+        if (gestureEvent.getDisplayId() == Display.DEFAULT_DISPLAY) {
+            onGesture(gestureEvent.getGestureId());
         }
         return false;
     }
@@ -1725,8 +1725,8 @@
             }
 
             @Override
-            public boolean onGesture(AccessibilityGestureInfo gestureInfo) {
-                return AccessibilityService.this.onGesture(gestureInfo);
+            public boolean onGesture(AccessibilityGestureEvent gestureEvent) {
+                return AccessibilityService.this.onGesture(gestureEvent);
             }
 
             @Override
@@ -1826,7 +1826,7 @@
         }
 
         @Override
-        public void onGesture(AccessibilityGestureInfo gestureInfo) {
+        public void onGesture(AccessibilityGestureEvent gestureInfo) {
             Message message = mCaller.obtainMessageO(DO_ON_GESTURE, gestureInfo);
             mCaller.sendMessage(message);
         }
@@ -1942,7 +1942,7 @@
 
                 case DO_ON_GESTURE: {
                     if (mConnectionId != AccessibilityInteractionClient.NO_ID) {
-                        mCallback.onGesture((AccessibilityGestureInfo) message.obj);
+                        mCallback.onGesture((AccessibilityGestureEvent) message.obj);
                     }
                 } return;
 
diff --git a/core/java/android/accessibilityservice/IAccessibilityServiceClient.aidl b/core/java/android/accessibilityservice/IAccessibilityServiceClient.aidl
index e0d5e44..8ec3aea 100644
--- a/core/java/android/accessibilityservice/IAccessibilityServiceClient.aidl
+++ b/core/java/android/accessibilityservice/IAccessibilityServiceClient.aidl
@@ -20,7 +20,7 @@
 import android.graphics.Region;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityWindowInfo;
-import android.accessibilityservice.AccessibilityGestureInfo;
+import android.accessibilityservice.AccessibilityGestureEvent;
 import android.view.KeyEvent;
 
 /**
@@ -36,7 +36,7 @@
 
     void onInterrupt();
 
-    void onGesture(in AccessibilityGestureInfo gestureInfo);
+    void onGesture(in AccessibilityGestureEvent gestureEvent);
 
     void clearAccessibilityCache();
 
diff --git a/core/java/android/app/AppCompatCallbacks.java b/core/java/android/app/AppCompatCallbacks.java
index 17697db..08c97eb 100644
--- a/core/java/android/app/AppCompatCallbacks.java
+++ b/core/java/android/app/AppCompatCallbacks.java
@@ -19,6 +19,9 @@
 import android.compat.Compatibility;
 import android.os.Process;
 import android.util.Log;
+import android.util.StatsLog;
+
+import com.android.internal.compat.ChangeReporter;
 
 import java.util.Arrays;
 
@@ -28,10 +31,10 @@
  * @hide
  */
 public final class AppCompatCallbacks extends Compatibility.Callbacks {
-
     private static final String TAG = "Compatibility";
 
     private final long[] mDisabledChanges;
+    private final ChangeReporter mChangeReporter;
 
     /**
      * Install this class into the current process.
@@ -45,20 +48,29 @@
     private AppCompatCallbacks(long[] disabledChanges) {
         mDisabledChanges = Arrays.copyOf(disabledChanges, disabledChanges.length);
         Arrays.sort(mDisabledChanges);
+        mChangeReporter = new ChangeReporter();
     }
 
     protected void reportChange(long changeId) {
-        Log.d(TAG, "Compat change reported: " + changeId + "; UID " + Process.myUid());
-        // TODO log via StatsLog
+        reportChange(changeId, StatsLog.APP_COMPATIBILITY_CHANGE_REPORTED__STATE__LOGGED);
     }
 
     protected boolean isChangeEnabled(long changeId) {
         if (Arrays.binarySearch(mDisabledChanges, changeId) < 0) {
             // Not present in the disabled array
-            reportChange(changeId);
+            reportChange(changeId, StatsLog.APP_COMPATIBILITY_CHANGE_REPORTED__STATE__ENABLED);
             return true;
         }
+        reportChange(changeId, StatsLog.APP_COMPATIBILITY_CHANGE_REPORTED__STATE__DISABLED);
         return false;
     }
 
+    private void reportChange(long changeId, int state) {
+        int uid = Process.myUid();
+        //TODO(b/138374585): Implement rate limiting for the logs.
+        Log.d(TAG, ChangeReporter.createLogString(uid, changeId, state));
+        mChangeReporter.reportChange(uid, changeId,
+                state, /* source */StatsLog.APP_COMPATIBILITY_CHANGE_REPORTED__SOURCE__APP_PROCESS);
+    }
+
 }
diff --git a/core/java/android/app/UiAutomation.java b/core/java/android/app/UiAutomation.java
index f9b96c5..fd93450 100644
--- a/core/java/android/app/UiAutomation.java
+++ b/core/java/android/app/UiAutomation.java
@@ -16,7 +16,7 @@
 
 package android.app;
 
-import android.accessibilityservice.AccessibilityGestureInfo;
+import android.accessibilityservice.AccessibilityGestureEvent;
 import android.accessibilityservice.AccessibilityService.Callbacks;
 import android.accessibilityservice.AccessibilityService.IAccessibilityServiceClientWrapper;
 import android.accessibilityservice.AccessibilityServiceInfo;
@@ -1246,7 +1246,7 @@
                 }
 
                 @Override
-                public boolean onGesture(AccessibilityGestureInfo gestureInfo) {
+                public boolean onGesture(AccessibilityGestureEvent gestureEvent) {
                     /* do nothing */
                     return false;
                 }
diff --git a/core/java/android/content/IntentFilter.java b/core/java/android/content/IntentFilter.java
index 9d52363..099dea2 100644
--- a/core/java/android/content/IntentFilter.java
+++ b/core/java/android/content/IntentFilter.java
@@ -60,9 +60,7 @@
  * multiple possible matching values (via {@link #addAction},
  * {@link #addDataType}, {@link #addDataScheme}, {@link #addDataSchemeSpecificPart},
  * {@link #addDataAuthority}, {@link #addDataPath}, and {@link #addCategory}, respectively).
- * For actions, the field
- * will not be tested if no values have been given (treating it as a wildcard);
- * if no data characteristics are specified, however, then the filter will
+ * For actions, if no data characteristics are specified, then the filter will
  * only match intents that contain no data.
  *
  * <p>The data characteristic is
diff --git a/core/java/android/content/pm/LauncherApps.java b/core/java/android/content/pm/LauncherApps.java
index c74daa8..3933e81 100644
--- a/core/java/android/content/pm/LauncherApps.java
+++ b/core/java/android/content/pm/LauncherApps.java
@@ -519,9 +519,9 @@
      * <li>The app is a system app.</li>
      * <li>The app doesn't request any <a href="/guide/topics/permissions/overview">permissions</a>.
      * </li>
-     * <li>The <code>&lt;application&gt;</code> tag in the app's manifest doesn't contain any child
-     * elements that represent
-     * <a href="/guide/components/fundamentals#DeclaringComponents">app components</a>.</li>
+     * <li>The app doesn't have a <em>launcher activity</em> that is enabled by default. A launcher
+     * activity has an intent containing the <code>ACTION_MAIN</code> action and the
+     * <code>CATEGORY_LAUNCHER</code> category.</li>
      * </ul>
      *
      * <p>Additionally, the system hides synthesized activities for some or all apps in the
diff --git a/core/java/android/content/pm/PackageManager.java b/core/java/android/content/pm/PackageManager.java
index c561013..8dfe00a 100644
--- a/core/java/android/content/pm/PackageManager.java
+++ b/core/java/android/content/pm/PackageManager.java
@@ -39,7 +39,7 @@
 import android.app.admin.DevicePolicyManager;
 import android.app.usage.StorageStatsManager;
 import android.compat.annotation.ChangeId;
-import android.compat.annotation.EnabledAfter;
+import android.compat.annotation.Disabled;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
@@ -3379,7 +3379,7 @@
      * @hide
      */
     @ChangeId
-    @EnabledAfter(targetSdkVersion = Build.VERSION_CODES.Q)
+    @Disabled
     public static final long FILTER_APPLICATION_QUERY = 135549675L;
 
     /** {@hide} */
diff --git a/core/java/android/content/pm/PackageManagerInternal.java b/core/java/android/content/pm/PackageManagerInternal.java
index de61d70..24ee213 100644
--- a/core/java/android/content/pm/PackageManagerInternal.java
+++ b/core/java/android/content/pm/PackageManagerInternal.java
@@ -16,6 +16,7 @@
 
 package android.content.pm;
 
+import android.annotation.AppIdInt;
 import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
@@ -321,25 +322,24 @@
             Bundle verificationBundle, int userId);
 
     /**
-     * Grants access to the package metadata for an ephemeral application.
+     * Grants implicit access based on an interaction between two apps. This grants the target app
+     * access to the calling application's package metadata.
      * <p>
-     * When an ephemeral application explicitly tries to interact with a full
-     * install application [via an activity, service or provider that has been
-     * exposed using the {@code visibleToInstantApp} attribute], the normal
-     * application must be able to see metadata about the connecting ephemeral
-     * app. If the ephemeral application uses an implicit intent [ie action VIEW,
-     * category BROWSABLE], it remains hidden from the launched activity.
+     * When an application explicitly tries to interact with another application [via an
+     * activity, service or provider that is either declared in the caller's
+     * manifest via the {@code <queries>} tag or has been exposed via the target apps manifest using
+     * the {@code visibleToInstantApp} attribute], the target application must be able to see
+     * metadata about the calling app. If the calling application uses an implicit intent [ie
+     * action VIEW, category BROWSABLE], it remains hidden from the launched app.
      * <p>
-     * If the {@code sourceUid} is not for an ephemeral app or {@code targetUid}
-     * is not for a fully installed app, this method will be a no-op.
-     *
      * @param userId the user
      * @param intent the intent that triggered the grant
-     * @param targetAppId The app ID of the fully installed application
-     * @param ephemeralAppId The app ID of the ephemeral application
+     * @param callingAppId The app ID of the calling application
+     * @param targetAppId The app ID of the target application
      */
-    public abstract void grantEphemeralAccess(int userId, Intent intent,
-            int targetAppId, int ephemeralAppId);
+    public abstract void grantImplicitAccess(
+            @UserIdInt int userId, Intent intent, @AppIdInt int callingAppId,
+            @AppIdInt int targetAppId);
 
     public abstract boolean isInstantAppInstallerComponent(ComponentName component);
     /**
diff --git a/core/java/android/os/Process.java b/core/java/android/os/Process.java
index 30e5959..76e728a 100644
--- a/core/java/android/os/Process.java
+++ b/core/java/android/os/Process.java
@@ -182,6 +182,12 @@
      */
     public static final int NETWORK_STACK_UID = 1073;
 
+    /**
+     * Defines the UID/GID for fs-verity certificate ownership in keystore.
+     * @hide
+     */
+    public static final int FSVERITY_CERT_UID = 1075;
+
     /** {@hide} */
     public static final int NOBODY_UID = 9999;
 
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index 3b40c00..8b20f0b 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -2103,10 +2103,6 @@
     private static final String TAG = "Settings";
     private static final boolean LOCAL_LOGV = false;
 
-    // Lock ensures that when enabling/disabling the master location switch, we don't end up
-    // with a partial enable/disable state in multi-threaded situations.
-    private static final Object mLocationSettingsLock = new Object();
-
     // Used in system server calling uid workaround in call()
     private static boolean sInSystemServer = false;
     private static final Object sInSystemServerLock = new Object();
@@ -12920,8 +12916,7 @@
         }
 
         /**
-          * Subscription to be used for voice call on a multi sim device. The supported values
-          * are 0 = SUB1, 1 = SUB2 and etc.
+          * Subscription Id to be used for voice call on a multi sim device.
           * @hide
           */
         public static final String MULTI_SIM_VOICE_CALL_SUBSCRIPTION = "multi_sim_voice_call";
@@ -12935,15 +12930,13 @@
         public static final String MULTI_SIM_VOICE_PROMPT = "multi_sim_voice_prompt";
 
         /**
-          * Subscription to be used for data call on a multi sim device. The supported values
-          * are 0 = SUB1, 1 = SUB2 and etc.
+          * Subscription Id to be used for data call on a multi sim device.
           * @hide
           */
         public static final String MULTI_SIM_DATA_CALL_SUBSCRIPTION = "multi_sim_data_call";
 
         /**
-          * Subscription to be used for SMS on a multi sim device. The supported values
-          * are 0 = SUB1, 1 = SUB2 and etc.
+          * Subscription Id to be used for SMS on a multi sim device.
           * @hide
           */
         public static final String MULTI_SIM_SMS_SUBSCRIPTION = "multi_sim_sms";
diff --git a/core/java/android/service/carrier/ApnService.java b/core/java/android/service/carrier/ApnService.java
index 57e4b1b..0c12fd4 100644
--- a/core/java/android/service/carrier/ApnService.java
+++ b/core/java/android/service/carrier/ApnService.java
@@ -26,7 +26,7 @@
 import android.os.IBinder;
 import android.util.Log;
 
-import com.android.internal.telephony.IApnSourceService;
+import android.service.carrier.IApnSourceService;
 
 import java.util.List;
 
diff --git a/telephony/java/com/android/internal/telephony/IApnSourceService.aidl b/core/java/android/service/carrier/IApnSourceService.aidl
similarity index 93%
rename from telephony/java/com/android/internal/telephony/IApnSourceService.aidl
rename to core/java/android/service/carrier/IApnSourceService.aidl
index 34c9067..fadd2ff 100644
--- a/telephony/java/com/android/internal/telephony/IApnSourceService.aidl
+++ b/core/java/android/service/carrier/IApnSourceService.aidl
@@ -14,10 +14,11 @@
  * limitations under the License.
  */
 
-package com.android.internal.telephony;
+package android.service.carrier;
 
 import android.content.ContentValues;
 
+/** @hide */
 interface IApnSourceService {
     /** Retreive APNs. */
     ContentValues[] getApns(int subId);
diff --git a/core/java/android/service/notification/NotificationListenerService.java b/core/java/android/service/notification/NotificationListenerService.java
index 78e30ab..85f13d5 100644
--- a/core/java/android/service/notification/NotificationListenerService.java
+++ b/core/java/android/service/notification/NotificationListenerService.java
@@ -1522,6 +1522,7 @@
         private ArrayList<Notification.Action> mSmartActions;
         private ArrayList<CharSequence> mSmartReplies;
         private boolean mCanBubble;
+        private boolean mVisuallyInterruptive;
 
         private static final int PARCEL_VERSION = 2;
 
@@ -1553,6 +1554,7 @@
             out.writeTypedList(mSmartActions, flags);
             out.writeCharSequenceList(mSmartReplies);
             out.writeBoolean(mCanBubble);
+            out.writeBoolean(mVisuallyInterruptive);
         }
 
         /** @hide */
@@ -1585,6 +1587,7 @@
             mSmartActions = in.createTypedArrayList(Notification.Action.CREATOR);
             mSmartReplies = in.readCharSequenceList();
             mCanBubble = in.readBoolean();
+            mVisuallyInterruptive = in.readBoolean();
         }
 
 
@@ -1772,6 +1775,11 @@
         }
 
         /** @hide */
+        public boolean visuallyInterruptive() {
+            return mVisuallyInterruptive;
+        }
+
+        /** @hide */
         public boolean isNoisy() {
             return mNoisy;
         }
@@ -1787,7 +1795,8 @@
                 ArrayList<SnoozeCriterion> snoozeCriteria, boolean showBadge,
                 int userSentiment, boolean hidden, long lastAudiblyAlertedMs,
                 boolean noisy, ArrayList<Notification.Action> smartActions,
-                ArrayList<CharSequence> smartReplies, boolean canBubble) {
+                ArrayList<CharSequence> smartReplies, boolean canBubble,
+                boolean visuallyInterruptive) {
             mKey = key;
             mRank = rank;
             mIsAmbient = importance < NotificationManager.IMPORTANCE_LOW;
@@ -1808,6 +1817,7 @@
             mSmartActions = smartActions;
             mSmartReplies = smartReplies;
             mCanBubble = canBubble;
+            mVisuallyInterruptive = visuallyInterruptive;
         }
 
         /**
@@ -1832,7 +1842,8 @@
                     other.mNoisy,
                     other.mSmartActions,
                     other.mSmartReplies,
-                    other.mCanBubble);
+                    other.mCanBubble,
+                    other.mVisuallyInterruptive);
         }
 
         /**
diff --git a/core/java/android/text/TextLine.java b/core/java/android/text/TextLine.java
index 8665106..1c50d73 100644
--- a/core/java/android/text/TextLine.java
+++ b/core/java/android/text/TextLine.java
@@ -276,6 +276,7 @@
         final int runCount = mDirections.getRunCount();
         for (int runIndex = 0; runIndex < runCount; runIndex++) {
             final int runStart = mDirections.getRunStart(runIndex);
+            if (runStart > mLen) break;
             final int runLimit = Math.min(runStart + mDirections.getRunLength(runIndex), mLen);
             final boolean runIsRtl = mDirections.isRunRtl(runIndex);
 
@@ -360,6 +361,7 @@
         float h = 0;
         for (int runIndex = 0; runIndex < mDirections.getRunCount(); runIndex++) {
             final int runStart = mDirections.getRunStart(runIndex);
+            if (runStart > mLen) break;
             final int runLimit = Math.min(runStart + mDirections.getRunLength(runIndex), mLen);
             final boolean runIsRtl = mDirections.isRunRtl(runIndex);
 
@@ -417,6 +419,7 @@
         float h = 0;
         for (int runIndex = 0; runIndex < mDirections.getRunCount(); runIndex++) {
             final int runStart = mDirections.getRunStart(runIndex);
+            if (runStart > mLen) break;
             final int runLimit = Math.min(runStart + mDirections.getRunLength(runIndex), mLen);
             final boolean runIsRtl = mDirections.isRunRtl(runIndex);
 
diff --git a/core/java/android/view/IPinnedStackController.aidl b/core/java/android/view/IPinnedStackController.aidl
index f1d152b..d2dcb56 100644
--- a/core/java/android/view/IPinnedStackController.aidl
+++ b/core/java/android/view/IPinnedStackController.aidl
@@ -16,8 +16,6 @@
 
 package android.view;
 
-import android.graphics.Rect;
-
 /**
  * An interface to the PinnedStackController to update it of state changes, and to query
  * information based on the current state.
@@ -32,17 +30,15 @@
     oneway void setIsMinimized(boolean isMinimized);
 
     /**
+     * Notifies the controller of the current min edge size, this is needed to allow the system to
+     * properly calculate the aspect ratio of the expanded PIP.  The given {@param minEdgeSize} is
+     * always bounded to be larger than the default minEdgeSize, so the caller can call this method
+     * with 0 to reset to the default size.
+     */
+    oneway void setMinEdgeSize(int minEdgeSize);
+
+    /**
      * @return what WM considers to be the current device rotation.
      */
     int getDisplayRotation();
-
-    /**
-     * Notifies the controller to actually start the PiP animation.
-     * The bounds would be calculated based on the last save reentry fraction internally.
-     * {@param destinationBounds} is the stack bounds of the final PiP window
-     * and {@param sourceRectHint} is the source bounds hint used when entering picture-in-picture,
-     * expect the same bound passed via IPinnedStackListener#onPrepareAnimation.
-     * {@param animationDuration} suggests the animation duration transitioning to PiP window.
-     */
-    void startAnimation(in Rect destinationBounds, in Rect sourceRectHint, int animationDuration);
 }
diff --git a/core/java/android/view/IPinnedStackListener.aidl b/core/java/android/view/IPinnedStackListener.aidl
index 806d81e..2da353b 100644
--- a/core/java/android/view/IPinnedStackListener.aidl
+++ b/core/java/android/view/IPinnedStackListener.aidl
@@ -16,10 +16,8 @@
 
 package android.view;
 
-import android.content.ComponentName;
 import android.content.pm.ParceledListSlice;
 import android.graphics.Rect;
-import android.view.DisplayInfo;
 import android.view.IPinnedStackController;
 
 /**
@@ -38,13 +36,18 @@
     /**
      * Called when the window manager has detected a change that would cause the movement bounds
      * to be changed (ie. after configuration change, aspect ratio change, etc). It then provides
-     * the components that allow the listener to calculate the movement bounds itself.
-     * The {@param animatingBounds} are provided to indicate the current target bounds of the
-     * pinned stack (the final bounds if animating, the current bounds if not),
-     * which may be helpful in calculating dependent animation bounds.
+     * the components that allow the listener to calculate the movement bounds itself. The
+     * {@param normalBounds} are also the default bounds that the PiP would be entered in its
+     * current state with the aspect ratio applied.  The {@param animatingBounds} are provided
+     * to indicate the current target bounds of the pinned stack (the final bounds if animating,
+     * the current bounds if not), which may be helpful in calculating dependent animation bounds.
+     *
+     * The {@param displayRotation} is provided so that the client can verify when making certain
+     * calls that it will not provide stale information based on an old display rotation (ie. if
+     * the WM has changed in the mean time but the client has not received onMovementBoundsChanged).
      */
-    void onMovementBoundsChanged(in Rect animatingBounds, boolean fromImeAdjustment,
-            boolean fromShelfAdjustment);
+    void onMovementBoundsChanged(in Rect insetBounds, in Rect normalBounds, in Rect animatingBounds,
+            boolean fromImeAdjustment, boolean fromShelfAdjustment, int displayRotation);
 
     /**
      * Called when window manager decides to adjust the pinned stack bounds because of the IME, or
@@ -73,47 +76,4 @@
      * is first registered to allow the listener to synchronized its state with the controller.
      */
     void onActionsChanged(in ParceledListSlice actions);
-
-    /**
-     * Called by the window manager to notify the listener to save the reentry fraction,
-     * typically when an Activity leaves PiP (picture-in-picture) mode to fullscreen.
-     * {@param componentName} represents the application component of PiP window
-     * while {@param bounds} is the current PiP bounds used to calculate the
-     * reentry snap fraction.
-     */
-    void onSaveReentrySnapFraction(in ComponentName componentName, in Rect bounds);
-
-    /**
-     * Called by the window manager to notify the listener to reset saved reentry fraction,
-     * typically when an Activity enters PiP (picture-in-picture) mode from fullscreen.
-     * {@param componentName} represents the application component of PiP window.
-     */
-    void onResetReentrySnapFraction(in ComponentName componentName);
-
-    /**
-     * Called when the window manager has detected change on DisplayInfo,  or
-     * when the listener is first registered to allow the listener to synchronized its state with
-     * the controller.
-     */
-    void onDisplayInfoChanged(in DisplayInfo displayInfo);
-
-    /**
-     * Called by the window manager at the beginning of a configuration update cascade
-     * since the metrics from these resources are used for bounds calculations.
-     */
-    void onConfigurationChanged();
-
-    /**
-     * Called by the window manager when the aspect ratio is reset.
-     */
-    void onAspectRatioChanged(float aspectRatio);
-
-    /**
-     * Called by the window manager to notify the listener to prepare for PiP animation.
-     * Internally, the target bounds would be calculated from the given {@param aspectRatio}
-     * and {@param bounds}, the saved reentry snap fraction also contributes.
-     * Caller would wait for a IPinnedStackController#startAnimation callback to actually
-     * start the animation, see details in IPinnedStackController.
-     */
-    void onPrepareAnimation(in Rect sourceRectHint, float aspectRatio, in Rect bounds);
 }
diff --git a/core/java/android/view/SyncRtSurfaceTransactionApplier.java b/core/java/android/view/SyncRtSurfaceTransactionApplier.java
index 85457cb..1b6c575 100644
--- a/core/java/android/view/SyncRtSurfaceTransactionApplier.java
+++ b/core/java/android/view/SyncRtSurfaceTransactionApplier.java
@@ -30,6 +30,14 @@
  */
 public class SyncRtSurfaceTransactionApplier {
 
+    public static final int FLAG_ALL = 0xffffffff;
+    public static final int FLAG_ALPHA = 1;
+    public static final int FLAG_MATRIX = 1 << 1;
+    public static final int FLAG_WINDOW_CROP = 1 << 2;
+    public static final int FLAG_LAYER = 1 << 3;
+    public static final int FLAG_CORNER_RADIUS = 1 << 4;
+    public static final int FLAG_VISIBILITY = 1 << 5;
+
     private final Surface mTargetSurface;
     private final ViewRootImpl mTargetViewRootImpl;
     private final float[] mTmpFloat9 = new float[9];
@@ -72,15 +80,27 @@
     }
 
     public static void applyParams(Transaction t, SurfaceParams params, float[] tmpFloat9) {
-        t.setMatrix(params.surface, params.matrix, tmpFloat9);
-        t.setWindowCrop(params.surface, params.windowCrop);
-        t.setAlpha(params.surface, params.alpha);
-        t.setLayer(params.surface, params.layer);
-        t.setCornerRadius(params.surface, params.cornerRadius);
-        if (params.visible) {
-            t.show(params.surface);
-        } else {
-            t.hide(params.surface);
+        if ((params.flags & FLAG_MATRIX) != 0) {
+            t.setMatrix(params.surface, params.matrix, tmpFloat9);
+        }
+        if ((params.flags & FLAG_WINDOW_CROP) != 0) {
+            t.setWindowCrop(params.surface, params.windowCrop);
+        }
+        if ((params.flags & FLAG_ALPHA) != 0) {
+            t.setAlpha(params.surface, params.alpha);
+        }
+        if ((params.flags & FLAG_LAYER) != 0) {
+            t.setLayer(params.surface, params.layer);
+        }
+        if ((params.flags & FLAG_CORNER_RADIUS) != 0) {
+            t.setCornerRadius(params.surface, params.cornerRadius);
+        }
+        if ((params.flags & FLAG_VISIBILITY) != 0) {
+            if (params.visible) {
+                t.show(params.surface);
+            } else {
+                t.hide(params.surface);
+            }
         }
     }
 
@@ -115,17 +135,95 @@
 
     public static class SurfaceParams {
 
-        /**
-         * Constructs surface parameters to be applied when the current view state gets pushed to
-         * RenderThread.
-         *
-         * @param surface The surface to modify.
-         * @param alpha Alpha to apply.
-         * @param matrix Matrix to apply.
-         * @param windowCrop Crop to apply.
-         */
-        public SurfaceParams(SurfaceControl surface, float alpha, Matrix matrix,
+        public static class Builder {
+            final SurfaceControl surface;
+            int flags;
+            float alpha;
+            float cornerRadius;
+            Matrix matrix;
+            Rect windowCrop;
+            int layer;
+            boolean visible;
+
+            /**
+             * @param surface The surface to modify.
+             */
+            public Builder(SurfaceControl surface) {
+                this.surface = surface;
+            }
+
+            /**
+             * @param alpha The alpha value to apply to the surface.
+             * @return this Builder
+             */
+            public Builder withAlpha(float alpha) {
+                this.alpha = alpha;
+                flags |= FLAG_ALPHA;
+                return this;
+            }
+
+            /**
+             * @param matrix The matrix to apply to the surface.
+             * @return this Builder
+             */
+            public Builder withMatrix(Matrix matrix) {
+                this.matrix = matrix;
+                flags |= FLAG_MATRIX;
+                return this;
+            }
+
+            /**
+             * @param windowCrop The window crop to apply to the surface.
+             * @return this Builder
+             */
+            public Builder withWindowCrop(Rect windowCrop) {
+                this.windowCrop = windowCrop;
+                flags |= FLAG_WINDOW_CROP;
+                return this;
+            }
+
+            /**
+             * @param layer The layer to assign the surface.
+             * @return this Builder
+             */
+            public Builder withLayer(int layer) {
+                this.layer = layer;
+                flags |= FLAG_LAYER;
+                return this;
+            }
+
+            /**
+             * @param radius the Radius for rounded corners to apply to the surface.
+             * @return this Builder
+             */
+            public Builder withCornerRadius(float radius) {
+                this.cornerRadius = radius;
+                flags |= FLAG_CORNER_RADIUS;
+                return this;
+            }
+
+            /**
+             * @param visible The visibility to apply to the surface.
+             * @return this Builder
+             */
+            public Builder withVisibility(boolean visible) {
+                this.visible = visible;
+                flags |= FLAG_VISIBILITY;
+                return this;
+            }
+
+            /**
+             * @return a new SurfaceParams instance
+             */
+            public SurfaceParams build() {
+                return new SurfaceParams(surface, flags, alpha, matrix, windowCrop, layer,
+                        cornerRadius, visible);
+            }
+        }
+
+        private SurfaceParams(SurfaceControl surface, int params, float alpha, Matrix matrix,
                 Rect windowCrop, int layer, float cornerRadius, boolean visible) {
+            this.flags = params;
             this.surface = surface;
             this.alpha = alpha;
             this.matrix = new Matrix(matrix);
@@ -135,6 +233,36 @@
             this.visible = visible;
         }
 
+
+        /**
+         * Constructs surface parameters to be applied when the current view state gets pushed to
+         * RenderThread.
+         *
+         * @param surface The surface to modify.
+         * @param alpha Alpha to apply.
+         * @param matrix Matrix to apply.
+         * @param windowCrop Crop to apply.
+         * @param layer The layer to apply.
+         * @param cornerRadius The corner radius to apply.
+         * @param visible The visibility to apply.
+         *
+         * @deprecated Use {@link SurfaceParams.Builder} to create an instance.
+         */
+        @Deprecated
+        public SurfaceParams(SurfaceControl surface, float alpha, Matrix matrix,
+                Rect windowCrop, int layer, float cornerRadius, boolean visible) {
+            this.flags = FLAG_ALL;
+            this.surface = surface;
+            this.alpha = alpha;
+            this.matrix = new Matrix(matrix);
+            this.windowCrop = new Rect(windowCrop);
+            this.layer = layer;
+            this.cornerRadius = cornerRadius;
+            this.visible = visible;
+        }
+
+        private final int flags;
+
         @VisibleForTesting
         public final SurfaceControl surface;
 
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index bdfb3e3..cfb6a79a 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -14466,8 +14466,8 @@
         }
 
         notifyAppearedOrDisappearedForContentCaptureIfNeeded(isVisible);
-        if (isVisible != oldVisible) {
-            updateSystemGestureExclusionRects();
+        if (!getSystemGestureExclusionRects().isEmpty() && isVisible != oldVisible) {
+            postUpdateSystemGestureExclusionRects();
         }
     }
 
diff --git a/core/java/android/view/accessibility/AccessibilityCache.java b/core/java/android/view/accessibility/AccessibilityCache.java
index 484d9a1..dc8bf9b 100644
--- a/core/java/android/view/accessibility/AccessibilityCache.java
+++ b/core/java/android/view/accessibility/AccessibilityCache.java
@@ -71,7 +71,9 @@
 
     private boolean mIsAllWindowsCached;
 
-    private final SparseArray<AccessibilityWindowInfo> mWindowCache =
+    // The SparseArray of all {@link AccessibilityWindowInfo}s on all displays.
+    // The key of outer SparseArray is display ID and the key of inner SparseArray is window ID.
+    private final SparseArray<SparseArray<AccessibilityWindowInfo>> mWindowCacheByDisplay =
             new SparseArray<>();
 
     private final SparseArray<LongSparseArray<AccessibilityNodeInfo>> mNodeCache =
@@ -84,34 +86,66 @@
         mAccessibilityNodeRefresher = nodeRefresher;
     }
 
-    public void setWindows(List<AccessibilityWindowInfo> windows) {
+    /**
+     * Sets all {@link AccessibilityWindowInfo}s of all displays into the cache.
+     * The key of SparseArray is display ID.
+     *
+     * @param windowsOnAllDisplays The accessibility windows of all displays.
+     */
+    public void setWindowsOnAllDisplays(
+            SparseArray<List<AccessibilityWindowInfo>> windowsOnAllDisplays) {
         synchronized (mLock) {
             if (DEBUG) {
                 Log.i(LOG_TAG, "Set windows");
             }
-            clearWindowCache();
-            if (windows == null) {
+            clearWindowCacheLocked();
+            if (windowsOnAllDisplays == null) {
                 return;
             }
-            final int windowCount = windows.size();
-            for (int i = 0; i < windowCount; i++) {
-                final AccessibilityWindowInfo window = windows.get(i);
-                addWindow(window);
+
+            final int displayCounts = windowsOnAllDisplays.size();
+            for (int i = 0; i < displayCounts; i++) {
+                final List<AccessibilityWindowInfo> windowsOfDisplay =
+                        windowsOnAllDisplays.valueAt(i);
+
+                if (windowsOfDisplay == null) {
+                    continue;
+                }
+
+                final int displayId = windowsOnAllDisplays.keyAt(i);
+                final int windowCount = windowsOfDisplay.size();
+                for (int j = 0; j < windowCount; j++) {
+                    addWindowByDisplayLocked(displayId, windowsOfDisplay.get(j));
+                }
             }
             mIsAllWindowsCached = true;
         }
     }
 
+    /**
+     * Sets an {@link AccessibilityWindowInfo} into the cache.
+     *
+     * @param window The accessibility window.
+     */
     public void addWindow(AccessibilityWindowInfo window) {
         synchronized (mLock) {
             if (DEBUG) {
-                Log.i(LOG_TAG, "Caching window: " + window.getId());
+                Log.i(LOG_TAG, "Caching window: " + window.getId() + " at display Id [ "
+                        + window.getDisplayId() + " ]");
             }
-            final int windowId = window.getId();
-            mWindowCache.put(windowId, new AccessibilityWindowInfo(window));
+            addWindowByDisplayLocked(window.getDisplayId(), window);
         }
     }
 
+    private void addWindowByDisplayLocked(int displayId, AccessibilityWindowInfo window) {
+        SparseArray<AccessibilityWindowInfo> windows = mWindowCacheByDisplay.get(displayId);
+        if (windows == null) {
+            windows = new SparseArray<>();
+            mWindowCacheByDisplay.put(displayId, windows);
+        }
+        final int windowId = window.getId();
+        windows.put(windowId, new AccessibilityWindowInfo(window));
+    }
     /**
      * Notifies the cache that the something in the UI changed. As a result
      * the cache will either refresh some nodes or evict some nodes.
@@ -236,44 +270,82 @@
         }
     }
 
-    public List<AccessibilityWindowInfo> getWindows() {
+    /**
+     * Gets all {@link AccessibilityWindowInfo}s of all displays from the cache.
+     *
+     * @return All cached {@link AccessibilityWindowInfo}s of all displays
+     *         or null if such not found. The key of SparseArray is display ID.
+     */
+    public SparseArray<List<AccessibilityWindowInfo>> getWindowsOnAllDisplays() {
         synchronized (mLock) {
             if (!mIsAllWindowsCached) {
                 return null;
             }
+            final SparseArray<List<AccessibilityWindowInfo>> returnWindows = new SparseArray<>();
+            final int displayCounts = mWindowCacheByDisplay.size();
 
-            final int windowCount = mWindowCache.size();
-            if (windowCount > 0) {
-                // Careful to return the windows in a decreasing layer order.
-                SparseArray<AccessibilityWindowInfo> sortedWindows = mTempWindowArray;
-                sortedWindows.clear();
+            if (displayCounts > 0) {
+                for (int i = 0; i < displayCounts; i++) {
+                    final int displayId = mWindowCacheByDisplay.keyAt(i);
+                    final SparseArray<AccessibilityWindowInfo> windowsOfDisplay =
+                            mWindowCacheByDisplay.valueAt(i);
 
-                for (int i = 0; i < windowCount; i++) {
-                    AccessibilityWindowInfo window = mWindowCache.valueAt(i);
-                    sortedWindows.put(window.getLayer(), window);
+                    if (windowsOfDisplay == null) {
+                        continue;
+                    }
+
+                    final int windowCount = windowsOfDisplay.size();
+                    if (windowCount > 0) {
+                        // Careful to return the windows in a decreasing layer order.
+                        SparseArray<AccessibilityWindowInfo> sortedWindows = mTempWindowArray;
+                        sortedWindows.clear();
+
+                        for (int j = 0; j < windowCount; j++) {
+                            AccessibilityWindowInfo window = windowsOfDisplay.valueAt(j);
+                            sortedWindows.put(window.getLayer(), window);
+                        }
+
+                        // It's possible in transient conditions for two windows to share the same
+                        // layer, which results in sortedWindows being smaller than
+                        // mWindowCacheByDisplay
+                        final int sortedWindowCount = sortedWindows.size();
+                        List<AccessibilityWindowInfo> windows =
+                                new ArrayList<>(sortedWindowCount);
+                        for (int j = sortedWindowCount - 1; j >= 0; j--) {
+                            AccessibilityWindowInfo window = sortedWindows.valueAt(j);
+                            windows.add(new AccessibilityWindowInfo(window));
+                            sortedWindows.removeAt(j);
+                        }
+                        returnWindows.put(displayId, windows);
+                    }
                 }
-
-                // It's possible in transient conditions for two windows to share the same
-                // layer, which results in sortedWindows being smaller than mWindowCache
-                final int sortedWindowCount = sortedWindows.size();
-                List<AccessibilityWindowInfo> windows = new ArrayList<>(sortedWindowCount);
-                for (int i = sortedWindowCount - 1; i >= 0; i--) {
-                    AccessibilityWindowInfo window = sortedWindows.valueAt(i);
-                    windows.add(new AccessibilityWindowInfo(window));
-                    sortedWindows.removeAt(i);
-                }
-
-                return windows;
+                return returnWindows;
             }
             return null;
         }
     }
 
+    /**
+     * Gets an {@link AccessibilityWindowInfo} by windowId.
+     *
+     * @param windowId The id of the window.
+     *
+     * @return The {@link AccessibilityWindowInfo} or null if such not found.
+     */
     public AccessibilityWindowInfo getWindow(int windowId) {
         synchronized (mLock) {
-            AccessibilityWindowInfo window = mWindowCache.get(windowId);
-            if (window != null) {
-                return new AccessibilityWindowInfo(window);
+            final int displayCounts = mWindowCacheByDisplay.size();
+            for (int i = 0; i < displayCounts; i++) {
+                final SparseArray<AccessibilityWindowInfo> windowsOfDisplay =
+                        mWindowCacheByDisplay.valueAt(i);
+                if (windowsOfDisplay == null) {
+                    continue;
+                }
+
+                AccessibilityWindowInfo window = windowsOfDisplay.get(windowId);
+                if (window != null) {
+                    return new AccessibilityWindowInfo(window);
+                }
             }
             return null;
         }
@@ -358,7 +430,7 @@
             if (DEBUG) {
                 Log.i(LOG_TAG, "clear()");
             }
-            clearWindowCache();
+            clearWindowCacheLocked();
             final int nodesForWindowCount = mNodeCache.size();
             for (int i = nodesForWindowCount - 1; i >= 0; i--) {
                 final int windowId = mNodeCache.keyAt(i);
@@ -370,8 +442,23 @@
         }
     }
 
-    private void clearWindowCache() {
-        mWindowCache.clear();
+    private void clearWindowCacheLocked() {
+        if (DEBUG) {
+            Log.i(LOG_TAG, "clearWindowCacheLocked");
+        }
+        final int displayCounts = mWindowCacheByDisplay.size();
+
+        if (displayCounts > 0) {
+            for (int i = displayCounts - 1; i >= 0; i--) {
+                final int displayId = mWindowCacheByDisplay.keyAt(i);
+                final SparseArray<AccessibilityWindowInfo> windows =
+                        mWindowCacheByDisplay.get(displayId);
+                if (windows != null) {
+                    windows.clear();
+                }
+                mWindowCacheByDisplay.remove(displayId);
+            }
+        }
         mIsAllWindowsCached = false;
     }
 
@@ -444,32 +531,41 @@
     public void checkIntegrity() {
         synchronized (mLock) {
             // Get the root.
-            if (mWindowCache.size() <= 0 && mNodeCache.size() == 0) {
+            if (mWindowCacheByDisplay.size() <= 0 && mNodeCache.size() == 0) {
                 return;
             }
 
             AccessibilityWindowInfo focusedWindow = null;
             AccessibilityWindowInfo activeWindow = null;
 
-            final int windowCount = mWindowCache.size();
-            for (int i = 0; i < windowCount; i++) {
-                AccessibilityWindowInfo window = mWindowCache.valueAt(i);
+            final int displayCounts = mWindowCacheByDisplay.size();
+            for (int i = 0; i < displayCounts; i++) {
+                final SparseArray<AccessibilityWindowInfo> windowsOfDisplay =
+                        mWindowCacheByDisplay.valueAt(i);
 
-                // Check for one active window.
-                if (window.isActive()) {
-                    if (activeWindow != null) {
-                        Log.e(LOG_TAG, "Duplicate active window:" + window);
-                    } else {
-                        activeWindow = window;
-                    }
+                if (windowsOfDisplay == null) {
+                    continue;
                 }
 
-                // Check for one focused window.
-                if (window.isFocused()) {
-                    if (focusedWindow != null) {
-                        Log.e(LOG_TAG, "Duplicate focused window:" + window);
-                    } else {
-                        focusedWindow = window;
+                final int windowCount = windowsOfDisplay.size();
+                for (int j = 0; j < windowCount; j++) {
+                    final AccessibilityWindowInfo window = windowsOfDisplay.valueAt(j);
+
+                    // Check for one active window.
+                    if (window.isActive()) {
+                        if (activeWindow != null) {
+                            Log.e(LOG_TAG, "Duplicate active window:" + window);
+                        } else {
+                            activeWindow = window;
+                        }
+                    }
+                    // Check for one focused window.
+                    if (window.isFocused()) {
+                        if (focusedWindow != null) {
+                            Log.e(LOG_TAG, "Duplicate focused window:" + window);
+                        } else {
+                            focusedWindow = window;
+                        }
                     }
                 }
             }
diff --git a/core/java/android/view/accessibility/AccessibilityInteractionClient.java b/core/java/android/view/accessibility/AccessibilityInteractionClient.java
index 4db6f4f..d9fa9f2 100644
--- a/core/java/android/view/accessibility/AccessibilityInteractionClient.java
+++ b/core/java/android/view/accessibility/AccessibilityInteractionClient.java
@@ -28,6 +28,7 @@
 import android.util.Log;
 import android.util.LongSparseArray;
 import android.util.SparseArray;
+import android.view.Display;
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.util.ArrayUtils;
@@ -267,12 +268,14 @@
         try {
             IAccessibilityServiceConnection connection = getConnection(connectionId);
             if (connection != null) {
-                List<AccessibilityWindowInfo> windows = sAccessibilityCache.getWindows();
-                if (windows != null) {
+                SparseArray<List<AccessibilityWindowInfo>> allWindows =
+                        sAccessibilityCache.getWindowsOnAllDisplays();
+                List<AccessibilityWindowInfo> windows;
+                if (allWindows != null) {
                     if (DEBUG) {
                         Log.i(LOG_TAG, "Windows cache hit");
                     }
-                    return windows;
+                    return allWindows.valueAt(Display.DEFAULT_DISPLAY);
                 }
                 if (DEBUG) {
                     Log.i(LOG_TAG, "Windows cache miss");
@@ -284,7 +287,9 @@
                     Binder.restoreCallingIdentity(identityToken);
                 }
                 if (windows != null) {
-                    sAccessibilityCache.setWindows(windows);
+                    allWindows = new SparseArray<>();
+                    allWindows.put(Display.DEFAULT_DISPLAY, windows);
+                    sAccessibilityCache.setWindowsOnAllDisplays(allWindows);
                     return windows;
                 }
             } else {
diff --git a/core/java/android/view/contentcapture/ChildContentCaptureSession.java b/core/java/android/view/contentcapture/ChildContentCaptureSession.java
index b3b0b72..5e02de4 100644
--- a/core/java/android/view/contentcapture/ChildContentCaptureSession.java
+++ b/core/java/android/view/contentcapture/ChildContentCaptureSession.java
@@ -89,6 +89,11 @@
     }
 
     @Override
+    public void internalNotifySessionLifecycle(boolean started) {
+        getMainCaptureSession().notifySessionLifecycle(mId, started);
+    }
+
+    @Override
     boolean isContentCaptureEnabled() {
         return getMainCaptureSession().isContentCaptureEnabled();
     }
diff --git a/core/java/android/view/contentcapture/ContentCaptureSession.java b/core/java/android/view/contentcapture/ContentCaptureSession.java
index 625fcda..cf08c18 100644
--- a/core/java/android/view/contentcapture/ContentCaptureSession.java
+++ b/core/java/android/view/contentcapture/ContentCaptureSession.java
@@ -439,6 +439,19 @@
     public abstract void internalNotifyViewTreeEvent(boolean started);
 
     /**
+     * Notifies the Content Capture Service that a session has paused/resumed.
+     *
+     * @param started whether session has resumed.
+     */
+    public final void notifySessionLifecycle(boolean started) {
+        if (!isContentCaptureEnabled()) return;
+
+        internalNotifySessionLifecycle(started);
+    }
+
+    abstract void internalNotifySessionLifecycle(boolean started);
+
+    /**
      * Creates a {@link ViewStructure} for a "standard" view.
      *
      * <p>This method should be called after a visible view is laid out; the view then must populate
diff --git a/core/java/android/view/contentcapture/MainContentCaptureSession.java b/core/java/android/view/contentcapture/MainContentCaptureSession.java
index 1e7440b..349ef09 100644
--- a/core/java/android/view/contentcapture/MainContentCaptureSession.java
+++ b/core/java/android/view/contentcapture/MainContentCaptureSession.java
@@ -583,6 +583,11 @@
     }
 
     @Override
+    public void internalNotifySessionLifecycle(boolean started) {
+        notifySessionLifecycle(mId, started);
+    }
+
+    @Override
     boolean isContentCaptureEnabled() {
         return super.isContentCaptureEnabled() && mManager.isContentCaptureEnabled();
     }
@@ -637,10 +642,9 @@
         sendEvent(new ContentCaptureEvent(sessionId, type), FORCE_FLUSH);
     }
 
-    /** Public because is also used by ViewRootImpl */
-    public void notifySessionLifecycle(boolean started) {
+    void notifySessionLifecycle(int sessionId, boolean started) {
         final int type = started ? TYPE_SESSION_RESUMED : TYPE_SESSION_PAUSED;
-        sendEvent(new ContentCaptureEvent(mId, type), FORCE_FLUSH);
+        sendEvent(new ContentCaptureEvent(sessionId, type), FORCE_FLUSH);
     }
 
     void notifyContextUpdated(int sessionId, @Nullable ContentCaptureContext context) {
diff --git a/core/java/android/widget/Editor.java b/core/java/android/widget/Editor.java
index cac75cfd..57ce28e 100644
--- a/core/java/android/widget/Editor.java
+++ b/core/java/android/widget/Editor.java
@@ -2561,7 +2561,8 @@
      * @return True when the TextView isFocused and has a valid zero-length selection (cursor).
      */
     private boolean shouldBlink() {
-        if (!isCursorVisible() || !mTextView.isFocused()) return false;
+        if (!isCursorVisible() || !mTextView.isFocused() ||
+                !mTextView.isVisibleToUser()) return false;
 
         final int start = mTextView.getSelectionStart();
         if (start < 0) return false;
diff --git a/core/java/android/widget/ListView.java b/core/java/android/widget/ListView.java
index 2f44d6e..1cb1148 100644
--- a/core/java/android/widget/ListView.java
+++ b/core/java/android/widget/ListView.java
@@ -4109,7 +4109,7 @@
         final int rowsCount = getCount();
         final int selectionMode = getSelectionModeForAccessibility();
         final CollectionInfo collectionInfo = CollectionInfo.obtain(
-                rowsCount, 1, false, selectionMode);
+                -1, -1, false, selectionMode);
         info.setCollectionInfo(collectionInfo);
 
         if (rowsCount > 0) {
diff --git a/core/java/com/android/internal/compat/ChangeReporter.java b/core/java/com/android/internal/compat/ChangeReporter.java
new file mode 100644
index 0000000..1ce071b
--- /dev/null
+++ b/core/java/com/android/internal/compat/ChangeReporter.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.internal.compat;
+
+import android.util.StatsLog;
+
+/**
+ * A helper class to report changes to stats log.
+ *
+ * @hide
+ */
+public final class ChangeReporter {
+
+    /**
+     * Transforms StatsLog.APP_COMPATIBILITY_CHANGE_REPORTED__STATE enum to a string.
+     *
+     * @param state to transform
+     * @return a string representing the state
+     */
+    private static String stateToString(int state) {
+        switch (state) {
+            case StatsLog.APP_COMPATIBILITY_CHANGE_REPORTED__STATE__LOGGED:
+                return "LOGGED";
+            case StatsLog.APP_COMPATIBILITY_CHANGE_REPORTED__STATE__ENABLED:
+                return "ENABLED";
+            case StatsLog.APP_COMPATIBILITY_CHANGE_REPORTED__STATE__DISABLED:
+                return "DISABLED";
+            default:
+                return "UNKNOWN";
+        }
+    }
+
+    /**
+     * Constructs and returns a string to be logged to logcat when a change is reported.
+     *
+     * @param uid      affected by the change
+     * @param changeId the reported change id
+     * @param state    of the reported change - enabled/disabled/only logged
+     * @return string to log
+     */
+    public static String createLogString(int uid, long changeId, int state) {
+        return String.format("Compat change id reported: %d; UID %d; state: %s", changeId, uid,
+                stateToString(state));
+    }
+
+    /**
+     * Report the change to stats log.
+     *
+     * @param uid      affected by the change
+     * @param changeId the reported change id
+     * @param state    of the reported change - enabled/disabled/only logged
+     * @param source   of the logging - app process or system server
+     */
+    public void reportChange(int uid, long changeId, int state, int source) {
+        //TODO(b/138374585): Implement rate limiting for stats log.
+        StatsLog.write(StatsLog.APP_COMPATIBILITY_CHANGE_REPORTED, uid, changeId,
+                state, source);
+    }
+}
diff --git a/core/jni/android_hardware_SoundTrigger.cpp b/core/jni/android_hardware_SoundTrigger.cpp
index 03057dc..0002f8b 100644
--- a/core/jni/android_hardware_SoundTrigger.cpp
+++ b/core/jni/android_hardware_SoundTrigger.cpp
@@ -606,12 +606,12 @@
         goto exit;
     }
     memory = memoryDealer->allocate(offset + size);
-    if (memory == 0 || memory->pointer() == NULL) {
+    if (memory == 0 || memory->unsecurePointer() == NULL) {
         status = SOUNDTRIGGER_STATUS_ERROR;
         goto exit;
     }
 
-    nSoundModel = (struct sound_trigger_sound_model *)memory->pointer();
+    nSoundModel = (struct sound_trigger_sound_model *)memory->unsecurePointer();
 
     nSoundModel->type = type;
     nSoundModel->uuid = nUuid;
@@ -737,18 +737,18 @@
         return SOUNDTRIGGER_STATUS_ERROR;
     }
     sp<IMemory> memory = memoryDealer->allocate(totalSize);
-    if (memory == 0 || memory->pointer() == NULL) {
+    if (memory == 0 || memory->unsecurePointer() == NULL) {
         return SOUNDTRIGGER_STATUS_ERROR;
     }
     if (dataSize != 0) {
-        memcpy((char *)memory->pointer() + sizeof(struct sound_trigger_recognition_config),
+        memcpy((char *)memory->unsecurePointer() + sizeof(struct sound_trigger_recognition_config),
                 nData,
                 dataSize);
         env->ReleaseByteArrayElements(jData, nData, 0);
     }
     env->DeleteLocalRef(jData);
     struct sound_trigger_recognition_config *config =
-                                    (struct sound_trigger_recognition_config *)memory->pointer();
+                                    (struct sound_trigger_recognition_config *)memory->unsecurePointer();
     config->data_size = dataSize;
     config->data_offset = sizeof(struct sound_trigger_recognition_config);
     config->capture_requested = env->GetBooleanField(jConfig,
diff --git a/core/jni/android_media_AudioTrack.cpp b/core/jni/android_media_AudioTrack.cpp
index daa6347..c5049ec 100644
--- a/core/jni/android_media_AudioTrack.cpp
+++ b/core/jni/android_media_AudioTrack.cpp
@@ -649,7 +649,7 @@
         if ((size_t)sizeInBytes > track->sharedBuffer()->size()) {
             sizeInBytes = track->sharedBuffer()->size();
         }
-        memcpy(track->sharedBuffer()->pointer(), data + offsetInSamples, sizeInBytes);
+        memcpy(track->sharedBuffer()->unsecurePointer(), data + offsetInSamples, sizeInBytes);
         written = sizeInBytes;
     }
     if (written >= 0) {
diff --git a/core/jni/android_os_HwBinder.cpp b/core/jni/android_os_HwBinder.cpp
index cbae2da..b6427c9a 100644
--- a/core/jni/android_os_HwBinder.cpp
+++ b/core/jni/android_os_HwBinder.cpp
@@ -152,7 +152,7 @@
         uint32_t flags,
         TransactCallback callback) {
     JNIEnv *env = AndroidRuntime::getJNIEnv();
-    bool isOneway = (flags & TF_ONE_WAY) != 0;
+    bool isOneway = (flags & IBinder::FLAG_ONEWAY) != 0;
     ScopedLocalRef<jobject> replyObj(env, nullptr);
     sp<JHwParcel> replyContext = nullptr;
 
diff --git a/core/jni/android_view_InputChannel.cpp b/core/jni/android_view_InputChannel.cpp
index 8553a2c..af34e7b7 100644
--- a/core/jni/android_view_InputChannel.cpp
+++ b/core/jni/android_view_InputChannel.cpp
@@ -16,6 +16,7 @@
 
 #define LOG_TAG "InputChannel-JNI"
 
+#include "android-base/stringprintf.h"
 #include <nativehelper/JNIHelp.h>
 #include "nativehelper/scoped_utf_chars.h"
 #include <android_runtime/AndroidRuntime.h>
@@ -60,7 +61,7 @@
 // ----------------------------------------------------------------------------
 
 NativeInputChannel::NativeInputChannel(const sp<InputChannel>& inputChannel) :
-    mInputChannel(inputChannel), mDisposeCallback(NULL) {
+    mInputChannel(inputChannel), mDisposeCallback(nullptr) {
 }
 
 NativeInputChannel::~NativeInputChannel() {
@@ -74,8 +75,8 @@
 void NativeInputChannel::invokeAndRemoveDisposeCallback(JNIEnv* env, jobject obj) {
     if (mDisposeCallback) {
         mDisposeCallback(env, obj, mInputChannel, mDisposeData);
-        mDisposeCallback = NULL;
-        mDisposeData = NULL;
+        mDisposeCallback = nullptr;
+        mDisposeData = nullptr;
     }
 }
 
@@ -96,14 +97,14 @@
 sp<InputChannel> android_view_InputChannel_getInputChannel(JNIEnv* env, jobject inputChannelObj) {
     NativeInputChannel* nativeInputChannel =
             android_view_InputChannel_getNativeInputChannel(env, inputChannelObj);
-    return nativeInputChannel != NULL ? nativeInputChannel->getInputChannel() : NULL;
+    return nativeInputChannel != nullptr ? nativeInputChannel->getInputChannel() : nullptr;
 }
 
 void android_view_InputChannel_setDisposeCallback(JNIEnv* env, jobject inputChannelObj,
         InputChannelObjDisposeCallback callback, void* data) {
     NativeInputChannel* nativeInputChannel =
             android_view_InputChannel_getNativeInputChannel(env, inputChannelObj);
-    if (nativeInputChannel == NULL) {
+    if (nativeInputChannel == nullptr) {
         ALOGW("Cannot set dispose callback because input channel object has not been initialized.");
     } else {
         nativeInputChannel->setDisposeCallback(callback, data);
@@ -131,27 +132,27 @@
     status_t result = InputChannel::openInputChannelPair(name, serverChannel, clientChannel);
 
     if (result) {
-        String8 message;
-        message.appendFormat("Could not open input channel pair.  status=%d", result);
-        jniThrowRuntimeException(env, message.string());
-        return NULL;
+        std::string message = android::base::StringPrintf(
+                "Could not open input channel pair : %s", strerror(-result));
+        jniThrowRuntimeException(env, message.c_str());
+        return nullptr;
     }
 
-    jobjectArray channelPair = env->NewObjectArray(2, gInputChannelClassInfo.clazz, NULL);
+    jobjectArray channelPair = env->NewObjectArray(2, gInputChannelClassInfo.clazz, nullptr);
     if (env->ExceptionCheck()) {
-        return NULL;
+        return nullptr;
     }
 
     jobject serverChannelObj = android_view_InputChannel_createInputChannel(env,
             std::make_unique<NativeInputChannel>(serverChannel));
     if (env->ExceptionCheck()) {
-        return NULL;
+        return nullptr;
     }
 
     jobject clientChannelObj = android_view_InputChannel_createInputChannel(env,
             std::make_unique<NativeInputChannel>(clientChannel));
     if (env->ExceptionCheck()) {
-        return NULL;
+        return nullptr;
     }
 
     env->SetObjectArrayElement(channelPair, 0, serverChannelObj);
@@ -170,7 +171,7 @@
 
         nativeInputChannel->invokeAndRemoveDisposeCallback(env, obj);
 
-        android_view_InputChannel_setNativeInputChannel(env, obj, NULL);
+        android_view_InputChannel_setNativeInputChannel(env, obj, nullptr);
         delete nativeInputChannel;
     }
 }
@@ -179,14 +180,14 @@
     NativeInputChannel* nativeInputChannel =
             android_view_InputChannel_getNativeInputChannel(env, obj);
     if (nativeInputChannel) {
-        android_view_InputChannel_setNativeInputChannel(env, obj, NULL);
+        android_view_InputChannel_setNativeInputChannel(env, obj, nullptr);
         delete nativeInputChannel;
     }
 }
 
 static void android_view_InputChannel_nativeTransferTo(JNIEnv* env, jobject obj,
         jobject otherObj) {
-    if (android_view_InputChannel_getNativeInputChannel(env, otherObj) != NULL) {
+    if (android_view_InputChannel_getNativeInputChannel(env, otherObj) != nullptr) {
         jniThrowException(env, "java/lang/IllegalStateException",
                 "Other object already has a native input channel.");
         return;
@@ -195,12 +196,12 @@
     NativeInputChannel* nativeInputChannel =
             android_view_InputChannel_getNativeInputChannel(env, obj);
     android_view_InputChannel_setNativeInputChannel(env, otherObj, nativeInputChannel);
-    android_view_InputChannel_setNativeInputChannel(env, obj, NULL);
+    android_view_InputChannel_setNativeInputChannel(env, obj, nullptr);
 }
 
 static void android_view_InputChannel_nativeReadFromParcel(JNIEnv* env, jobject obj,
         jobject parcelObj) {
-    if (android_view_InputChannel_getNativeInputChannel(env, obj) != NULL) {
+    if (android_view_InputChannel_getNativeInputChannel(env, obj) != nullptr) {
         jniThrowException(env, "java/lang/IllegalStateException",
                 "This object already has a native input channel.");
         return;
@@ -222,25 +223,26 @@
 static void android_view_InputChannel_nativeWriteToParcel(JNIEnv* env, jobject obj,
         jobject parcelObj) {
     Parcel* parcel = parcelForJavaObject(env, parcelObj);
-    if (parcel) {
-        NativeInputChannel* nativeInputChannel =
-                android_view_InputChannel_getNativeInputChannel(env, obj);
-        if (nativeInputChannel) {
-            sp<InputChannel> inputChannel = nativeInputChannel->getInputChannel();
-
-            parcel->writeInt32(1);
-            inputChannel->write(*parcel);
-        } else {
-            parcel->writeInt32(0);
-        }
+    if (parcel == nullptr) {
+        ALOGE("Could not obtain parcel for Java object");
+        return;
     }
+
+    NativeInputChannel* nativeInputChannel =
+            android_view_InputChannel_getNativeInputChannel(env, obj);
+    if (!nativeInputChannel) {
+        parcel->writeInt32(0); // not initialized
+        return;
+    }
+    parcel->writeInt32(1); // initialized
+    nativeInputChannel->getInputChannel()->write(*parcel);
 }
 
 static jstring android_view_InputChannel_nativeGetName(JNIEnv* env, jobject obj) {
     NativeInputChannel* nativeInputChannel =
             android_view_InputChannel_getNativeInputChannel(env, obj);
     if (! nativeInputChannel) {
-        return NULL;
+        return nullptr;
     }
 
     jstring name = env->NewStringUTF(nativeInputChannel->getInputChannel()->getName().c_str());
@@ -250,10 +252,24 @@
 static void android_view_InputChannel_nativeDup(JNIEnv* env, jobject obj, jobject otherObj) {
     NativeInputChannel* nativeInputChannel =
             android_view_InputChannel_getNativeInputChannel(env, obj);
-    if (nativeInputChannel) {
-        android_view_InputChannel_setNativeInputChannel(env, otherObj,
-                new NativeInputChannel(nativeInputChannel->getInputChannel()->dup()));
+    if (nativeInputChannel == nullptr) {
+        jniThrowRuntimeException(env, "InputChannel has no valid NativeInputChannel");
+        return;
     }
+
+    sp<InputChannel> inputChannel = nativeInputChannel->getInputChannel();
+    if (inputChannel == nullptr) {
+        jniThrowRuntimeException(env, "NativeInputChannel has no corresponding InputChannel");
+        return;
+    }
+    sp<InputChannel> dupInputChannel = inputChannel->dup();
+    if (dupInputChannel == nullptr) {
+        std::string message = android::base::StringPrintf(
+                "Could not duplicate input channel %s", inputChannel->getName().c_str());
+        jniThrowRuntimeException(env, message.c_str());
+    }
+    android_view_InputChannel_setNativeInputChannel(env, otherObj,
+            new NativeInputChannel(dupInputChannel));
 }
 
 static jobject android_view_InputChannel_nativeGetToken(JNIEnv* env, jobject obj) {
diff --git a/core/tests/coretests/Android.bp b/core/tests/coretests/Android.bp
index 1670d49..a4c504b 100644
--- a/core/tests/coretests/Android.bp
+++ b/core/tests/coretests/Android.bp
@@ -43,7 +43,6 @@
 
     libs: [
         "android.test.runner",
-        "telephony-common",
         "testables",
         "org.apache.http.legacy",
         "android.test.base",
diff --git a/core/tests/coretests/src/android/view/accessibility/AccessibilityCacheTest.java b/core/tests/coretests/src/android/view/accessibility/AccessibilityCacheTest.java
index 1a22a70..6bce651 100644
--- a/core/tests/coretests/src/android/view/accessibility/AccessibilityCacheTest.java
+++ b/core/tests/coretests/src/android/view/accessibility/AccessibilityCacheTest.java
@@ -29,6 +29,8 @@
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import android.util.SparseArray;
+import android.view.Display;
 import android.view.View;
 
 import androidx.test.filters.LargeTest;
@@ -51,12 +53,17 @@
 public class AccessibilityCacheTest {
     private static final int WINDOW_ID_1 = 0xBEEF;
     private static final int WINDOW_ID_2 = 0xFACE;
+    private static final int WINDOW_ID_3 = 0xABCD;
+    private static final int WINDOW_ID_4 = 0xDCBA;
     private static final int SINGLE_VIEW_ID = 0xCAFE;
     private static final int OTHER_VIEW_ID = 0xCAB2;
     private static final int PARENT_VIEW_ID = 0xFED4;
     private static final int CHILD_VIEW_ID = 0xFEED;
     private static final int OTHER_CHILD_VIEW_ID = 0xACE2;
     private static final int MOCK_CONNECTION_ID = 1;
+    private static final int SECONDARY_DISPLAY_ID = Display.DEFAULT_DISPLAY + 1;
+    private static final int DEFAULT_WINDOW_LAYER = 0;
+    private static final int SPECIFIC_WINDOW_LAYER = 5;
 
     AccessibilityCache mAccessibilityCache;
     AccessibilityCache.AccessibilityNodeRefresher mAccessibilityNodeRefresher;
@@ -70,7 +77,7 @@
 
     @After
     public void tearDown() {
-        // Make sure we're recycling all of our window and node infos
+        // Make sure we're recycling all of our window and node infos.
         mAccessibilityCache.clear();
         AccessibilityInteractionClient.getInstance().clearCache();
     }
@@ -78,7 +85,7 @@
     @Test
     public void testEmptyCache_returnsNull() {
         assertNull(mAccessibilityCache.getNode(0, 0));
-        assertNull(mAccessibilityCache.getWindows());
+        assertNull(mAccessibilityCache.getWindowsOnAllDisplays());
         assertNull(mAccessibilityCache.getWindow(0));
     }
 
@@ -114,10 +121,11 @@
         try {
             windowInfo = AccessibilityWindowInfo.obtain();
             windowInfo.setId(WINDOW_ID_1);
+            windowInfo.setDisplayId(Display.DEFAULT_DISPLAY);
             mAccessibilityCache.addWindow(windowInfo);
             // Make a copy
             copyOfInfo = AccessibilityWindowInfo.obtain(windowInfo);
-            windowInfo.setId(WINDOW_ID_2); // Simulate recycling and reusing the original info
+            windowInfo.setId(WINDOW_ID_2); // Simulate recycling and reusing the original info.
             windowFromCache = mAccessibilityCache.getWindow(WINDOW_ID_1);
             assertEquals(copyOfInfo, windowFromCache);
         } finally {
@@ -129,39 +137,40 @@
 
     @Test
     public void addWindowThenClear_noLongerInCache() {
-        putWindowWithIdInCache(WINDOW_ID_1);
+        putWindowWithWindowIdAndDisplayIdInCache(WINDOW_ID_1, Display.DEFAULT_DISPLAY,
+                DEFAULT_WINDOW_LAYER);
         mAccessibilityCache.clear();
         assertNull(mAccessibilityCache.getWindow(WINDOW_ID_1));
     }
 
     @Test
     public void addWindowGetOtherId_returnsNull() {
-        putWindowWithIdInCache(WINDOW_ID_1);
+        putWindowWithWindowIdAndDisplayIdInCache(WINDOW_ID_1, Display.DEFAULT_DISPLAY,
+                DEFAULT_WINDOW_LAYER);
         assertNull(mAccessibilityCache.getWindow(WINDOW_ID_1 + 1));
     }
 
     @Test
     public void addWindowThenGetWindows_returnsNull() {
-        putWindowWithIdInCache(WINDOW_ID_1);
-        assertNull(mAccessibilityCache.getWindows());
+        putWindowWithWindowIdAndDisplayIdInCache(WINDOW_ID_1, Display.DEFAULT_DISPLAY,
+                DEFAULT_WINDOW_LAYER);
+        assertNull(mAccessibilityCache.getWindowsOnAllDisplays());
     }
 
     @Test
     public void setWindowsThenGetWindows_returnsInDecreasingLayerOrder() {
-        AccessibilityWindowInfo windowInfo1 = null, windowInfo2 = null;
-        AccessibilityWindowInfo window1Out = null, window2Out = null;
+        AccessibilityWindowInfo windowInfo1 = null;
+        AccessibilityWindowInfo windowInfo2 = null;
+        AccessibilityWindowInfo window1Out = null;
+        AccessibilityWindowInfo window2Out = null;
         List<AccessibilityWindowInfo> windowsOut = null;
         try {
-            windowInfo1 = AccessibilityWindowInfo.obtain();
-            windowInfo1.setId(WINDOW_ID_1);
-            windowInfo1.setLayer(5);
-            windowInfo2 = AccessibilityWindowInfo.obtain();
-            windowInfo2.setId(WINDOW_ID_2);
-            windowInfo2.setLayer(windowInfo1.getLayer() + 1);
+            windowInfo1 = obtainAccessibilityWindowInfo(WINDOW_ID_1, SPECIFIC_WINDOW_LAYER);
+            windowInfo2 = obtainAccessibilityWindowInfo(WINDOW_ID_2, windowInfo1.getLayer() + 1);
             List<AccessibilityWindowInfo> windowsIn = Arrays.asList(windowInfo1, windowInfo2);
-            mAccessibilityCache.setWindows(windowsIn);
+            setWindowsByDisplay(Display.DEFAULT_DISPLAY, windowsIn);
 
-            windowsOut = mAccessibilityCache.getWindows();
+            windowsOut = getWindowsByDisplay(Display.DEFAULT_DISPLAY);
             window1Out = mAccessibilityCache.getWindow(WINDOW_ID_1);
             window2Out = mAccessibilityCache.getWindow(WINDOW_ID_2);
 
@@ -182,8 +191,151 @@
     }
 
     @Test
+    public void setWindowsAndAddWindow_thenGetWindows_returnsInDecreasingLayerOrder() {
+        AccessibilityWindowInfo windowInfo1 = null;
+        AccessibilityWindowInfo windowInfo2 = null;
+        AccessibilityWindowInfo window1Out = null;
+        AccessibilityWindowInfo window2Out = null;
+        AccessibilityWindowInfo window3Out = null;
+        List<AccessibilityWindowInfo> windowsOut = null;
+        try {
+            windowInfo1 = obtainAccessibilityWindowInfo(WINDOW_ID_1, SPECIFIC_WINDOW_LAYER);
+            windowInfo2 = obtainAccessibilityWindowInfo(WINDOW_ID_2, windowInfo1.getLayer() + 2);
+            List<AccessibilityWindowInfo> windowsIn = Arrays.asList(windowInfo1, windowInfo2);
+            setWindowsByDisplay(Display.DEFAULT_DISPLAY, windowsIn);
+
+            putWindowWithWindowIdAndDisplayIdInCache(WINDOW_ID_3, Display.DEFAULT_DISPLAY,
+                    windowInfo1.getLayer() + 1);
+
+            windowsOut = getWindowsByDisplay(Display.DEFAULT_DISPLAY);
+            window1Out = mAccessibilityCache.getWindow(WINDOW_ID_1);
+            window2Out = mAccessibilityCache.getWindow(WINDOW_ID_2);
+            window3Out = mAccessibilityCache.getWindow(WINDOW_ID_3);
+
+            assertEquals(3, windowsOut.size());
+            assertEquals(windowInfo2, windowsOut.get(0));
+            assertEquals(windowInfo1, windowsOut.get(2));
+            assertEquals(windowInfo1, window1Out);
+            assertEquals(windowInfo2, window2Out);
+            assertEquals(window3Out, windowsOut.get(1));
+        } finally {
+            window1Out.recycle();
+            window2Out.recycle();
+            window3Out.recycle();
+            windowInfo1.recycle();
+            windowInfo2.recycle();
+            for (AccessibilityWindowInfo windowInfo : windowsOut) {
+                windowInfo.recycle();
+            }
+        }
+    }
+
+    @Test
+    public void
+            setWindowsAtFirstDisplay_thenAddWindowAtSecondDisplay_returnWindowLayerOrderUnchange() {
+        AccessibilityWindowInfo windowInfo1 = null;
+        AccessibilityWindowInfo windowInfo2 = null;
+        AccessibilityWindowInfo window1Out = null;
+        AccessibilityWindowInfo window2Out = null;
+        List<AccessibilityWindowInfo> windowsOut = null;
+        try {
+            // Sets windows to default display.
+            windowInfo1 = obtainAccessibilityWindowInfo(WINDOW_ID_1, SPECIFIC_WINDOW_LAYER);
+            windowInfo2 = obtainAccessibilityWindowInfo(WINDOW_ID_2, windowInfo1.getLayer() + 2);
+            List<AccessibilityWindowInfo> windowsIn = Arrays.asList(windowInfo1, windowInfo2);
+            setWindowsByDisplay(Display.DEFAULT_DISPLAY, windowsIn);
+            // Adds one window to second display.
+            putWindowWithWindowIdAndDisplayIdInCache(WINDOW_ID_3, SECONDARY_DISPLAY_ID,
+                    windowInfo1.getLayer() + 1);
+
+            windowsOut = getWindowsByDisplay(Display.DEFAULT_DISPLAY);
+            window1Out = mAccessibilityCache.getWindow(WINDOW_ID_1);
+            window2Out = mAccessibilityCache.getWindow(WINDOW_ID_2);
+
+            assertEquals(2, windowsOut.size());
+            assertEquals(windowInfo2, windowsOut.get(0));
+            assertEquals(windowInfo1, windowsOut.get(1));
+            assertEquals(windowInfo1, window1Out);
+            assertEquals(windowInfo2, window2Out);
+        } finally {
+            window1Out.recycle();
+            window2Out.recycle();
+            windowInfo1.recycle();
+            windowInfo2.recycle();
+            for (AccessibilityWindowInfo windowInfo : windowsOut) {
+                windowInfo.recycle();
+            }
+        }
+    }
+
+    @Test
+    public void setWindowsAtTwoDisplays_thenGetWindows_returnsInDecreasingLayerOrder() {
+        AccessibilityWindowInfo windowInfo1 = null;
+        AccessibilityWindowInfo windowInfo2 = null;
+        AccessibilityWindowInfo window1Out = null;
+        AccessibilityWindowInfo window2Out = null;
+        AccessibilityWindowInfo windowInfo3 = null;
+        AccessibilityWindowInfo windowInfo4 = null;
+        AccessibilityWindowInfo window3Out = null;
+        AccessibilityWindowInfo window4Out = null;
+        List<AccessibilityWindowInfo> windowsOut1 = null;
+        List<AccessibilityWindowInfo> windowsOut2 = null;
+        try {
+            // Prepares all windows for default display.
+            windowInfo1 = obtainAccessibilityWindowInfo(WINDOW_ID_1, SPECIFIC_WINDOW_LAYER);
+            windowInfo2 = obtainAccessibilityWindowInfo(WINDOW_ID_2, windowInfo1.getLayer() + 1);
+            List<AccessibilityWindowInfo> windowsIn1 = Arrays.asList(windowInfo1, windowInfo2);
+            // Prepares all windows for second display.
+            windowInfo3 = obtainAccessibilityWindowInfo(WINDOW_ID_3, windowInfo1.getLayer() + 2);
+            windowInfo4 = obtainAccessibilityWindowInfo(WINDOW_ID_4, windowInfo1.getLayer() + 3);
+            List<AccessibilityWindowInfo> windowsIn2 = Arrays.asList(windowInfo3, windowInfo4);
+            // Sets all windows of all displays into A11y cache.
+            SparseArray<List<AccessibilityWindowInfo>> allWindows = new SparseArray<>();
+            allWindows.put(Display.DEFAULT_DISPLAY, windowsIn1);
+            allWindows.put(SECONDARY_DISPLAY_ID, windowsIn2);
+            mAccessibilityCache.setWindowsOnAllDisplays(allWindows);
+            // Gets windows at default display.
+            windowsOut1 = getWindowsByDisplay(Display.DEFAULT_DISPLAY);
+            window1Out = mAccessibilityCache.getWindow(WINDOW_ID_1);
+            window2Out = mAccessibilityCache.getWindow(WINDOW_ID_2);
+
+            assertEquals(2, windowsOut1.size());
+            assertEquals(windowInfo2, windowsOut1.get(0));
+            assertEquals(windowInfo1, windowsOut1.get(1));
+            assertEquals(windowInfo1, window1Out);
+            assertEquals(windowInfo2, window2Out);
+            // Gets windows at seocnd display.
+            windowsOut2 = getWindowsByDisplay(SECONDARY_DISPLAY_ID);
+            window3Out = mAccessibilityCache.getWindow(WINDOW_ID_3);
+            window4Out = mAccessibilityCache.getWindow(WINDOW_ID_4);
+
+            assertEquals(2, windowsOut2.size());
+            assertEquals(windowInfo4, windowsOut2.get(0));
+            assertEquals(windowInfo3, windowsOut2.get(1));
+            assertEquals(windowInfo3, window3Out);
+            assertEquals(windowInfo4, window4Out);
+        } finally {
+            window1Out.recycle();
+            window2Out.recycle();
+            windowInfo1.recycle();
+            windowInfo2.recycle();
+            window3Out.recycle();
+            window4Out.recycle();
+            windowInfo3.recycle();
+            windowInfo4.recycle();
+            for (AccessibilityWindowInfo windowInfo : windowsOut1) {
+                windowInfo.recycle();
+            }
+            for (AccessibilityWindowInfo windowInfo : windowsOut2) {
+                windowInfo.recycle();
+            }
+        }
+    }
+
+    @Test
     public void addWindowThenStateChangedEvent_noLongerInCache() {
-        putWindowWithIdInCache(WINDOW_ID_1);
+        putWindowWithWindowIdAndDisplayIdInCache(WINDOW_ID_1, Display.DEFAULT_DISPLAY,
+                DEFAULT_WINDOW_LAYER);
         mAccessibilityCache.onAccessibilityEvent(
                 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED));
         assertNull(mAccessibilityCache.getWindow(WINDOW_ID_1));
@@ -191,7 +343,8 @@
 
     @Test
     public void addWindowThenWindowsChangedEvent_noLongerInCache() {
-        putWindowWithIdInCache(WINDOW_ID_1);
+        putWindowWithWindowIdAndDisplayIdInCache(WINDOW_ID_1, Display.DEFAULT_DISPLAY,
+                DEFAULT_WINDOW_LAYER);
         mAccessibilityCache.onAccessibilityEvent(
                 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_WINDOWS_CHANGED));
         assertNull(mAccessibilityCache.getWindow(WINDOW_ID_1));
@@ -622,9 +775,16 @@
         }
     }
 
-    private void putWindowWithIdInCache(int id) {
+    private AccessibilityWindowInfo obtainAccessibilityWindowInfo(int windowId, int layer) {
         AccessibilityWindowInfo windowInfo = AccessibilityWindowInfo.obtain();
-        windowInfo.setId(id);
+        windowInfo.setId(windowId);
+        windowInfo.setLayer(layer);
+        return windowInfo;
+    }
+
+    private void putWindowWithWindowIdAndDisplayIdInCache(int windowId, int displayId, int layer) {
+        AccessibilityWindowInfo windowInfo = obtainAccessibilityWindowInfo(windowId, layer);
+        windowInfo.setDisplayId(displayId);
         mAccessibilityCache.addWindow(windowInfo);
         windowInfo.recycle();
     }
@@ -713,4 +873,20 @@
             }
         }
     }
+
+    private void setWindowsByDisplay(int displayId, List<AccessibilityWindowInfo> windows) {
+        SparseArray<List<AccessibilityWindowInfo>> allWindows = new SparseArray<>();
+        allWindows.put(displayId, windows);
+        mAccessibilityCache.setWindowsOnAllDisplays(allWindows);
+    }
+
+    private List<AccessibilityWindowInfo> getWindowsByDisplay(int displayId) {
+        final SparseArray<List<AccessibilityWindowInfo>> allWindows =
+                mAccessibilityCache.getWindowsOnAllDisplays();
+
+        if (allWindows != null && allWindows.size() > 0) {
+            return allWindows.get(displayId);
+        }
+        return null;
+    }
 }
diff --git a/core/tests/coretests/src/android/view/contentcapture/ContentCaptureSessionTest.java b/core/tests/coretests/src/android/view/contentcapture/ContentCaptureSessionTest.java
index 81ce15a..c5da549 100644
--- a/core/tests/coretests/src/android/view/contentcapture/ContentCaptureSessionTest.java
+++ b/core/tests/coretests/src/android/view/contentcapture/ContentCaptureSessionTest.java
@@ -162,6 +162,11 @@
         }
 
         @Override
+        public void internalNotifySessionLifecycle(boolean started) {
+            throw new UnsupportedOperationException("Should not have been called");
+        }
+
+        @Override
         public void updateContentCaptureContext(ContentCaptureContext context) {
             throw new UnsupportedOperationException("should not have been called");
         }
diff --git a/core/tests/coretests/src/android/view/textclassifier/intent/LegacyIntentClassificationFactoryTest.java b/core/tests/coretests/src/android/view/textclassifier/intent/LegacyIntentClassificationFactoryTest.java
index e1ccd75..8891d3f 100644
--- a/core/tests/coretests/src/android/view/textclassifier/intent/LegacyIntentClassificationFactoryTest.java
+++ b/core/tests/coretests/src/android/view/textclassifier/intent/LegacyIntentClassificationFactoryTest.java
@@ -65,8 +65,10 @@
                         null,
                         null,
                         null,
-                        0,
-                        0);
+                        null,
+                        0L,
+                        0L,
+                        0d);
 
         List<LabeledIntent> intents = mLegacyIntentClassificationFactory.create(
                 InstrumentationRegistry.getContext(),
@@ -101,8 +103,10 @@
                         null,
                         null,
                         null,
-                        0,
-                        0);
+                        null,
+                        0L,
+                        0L,
+                        0d);
 
         List<LabeledIntent> intents = mLegacyIntentClassificationFactory.create(
                 InstrumentationRegistry.getContext(),
diff --git a/core/tests/coretests/src/android/view/textclassifier/intent/TemplateClassificationIntentFactoryTest.java b/core/tests/coretests/src/android/view/textclassifier/intent/TemplateClassificationIntentFactoryTest.java
index b9a1a8c..bcea5fe 100644
--- a/core/tests/coretests/src/android/view/textclassifier/intent/TemplateClassificationIntentFactoryTest.java
+++ b/core/tests/coretests/src/android/view/textclassifier/intent/TemplateClassificationIntentFactoryTest.java
@@ -83,9 +83,11 @@
                         null,
                         null,
                         null,
+                        null,
                         createRemoteActionTemplates(),
-                        0,
-                        0);
+                        0L,
+                        0L,
+                        0d);
 
         List<LabeledIntent> intents =
                 mTemplateClassificationIntentFactory.create(
@@ -124,9 +126,11 @@
                         null,
                         null,
                         null,
+                        null,
                         createRemoteActionTemplates(),
-                        0,
-                        0);
+                        0L,
+                        0L,
+                        0d);
 
         List<LabeledIntent> intents =
                 mTemplateClassificationIntentFactory.create(
@@ -162,8 +166,10 @@
                         null,
                         null,
                         null,
-                        0,
-                        0);
+                        null,
+                        0L,
+                        0L,
+                        0d);
 
         mTemplateClassificationIntentFactory.create(
                 InstrumentationRegistry.getContext(),
@@ -196,9 +202,11 @@
                         null,
                         null,
                         null,
+                        null,
                         new RemoteActionTemplate[0],
-                        0,
-                        0);
+                        0L,
+                        0L,
+                        0d);
 
         mTemplateClassificationIntentFactory.create(
                 InstrumentationRegistry.getContext(),
diff --git a/keystore/java/android/security/Credentials.java b/keystore/java/android/security/Credentials.java
index 08f4176..54995ac 100644
--- a/keystore/java/android/security/Credentials.java
+++ b/keystore/java/android/security/Credentials.java
@@ -16,11 +16,12 @@
 
 package android.security;
 
+import android.annotation.UnsupportedAppUsage;
+
 import com.android.org.bouncycastle.util.io.pem.PemObject;
 import com.android.org.bouncycastle.util.io.pem.PemReader;
 import com.android.org.bouncycastle.util.io.pem.PemWriter;
 
-import android.annotation.UnsupportedAppUsage;
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
@@ -90,9 +91,9 @@
     public static final String EXTRA_INSTALL_AS_UID = "install_as_uid";
 
     /**
-     * Intent extra: name for the user's private key.
+     * Intent extra: name for the user's key pair.
      */
-    public static final String EXTRA_USER_PRIVATE_KEY_NAME = "user_private_key_name";
+    public static final String EXTRA_USER_KEY_ALIAS = "user_key_pair_name";
 
     /**
      * Intent extra: data for the user's private key in PEM-encoded PKCS#8.
@@ -100,21 +101,11 @@
     public static final String EXTRA_USER_PRIVATE_KEY_DATA = "user_private_key_data";
 
     /**
-     * Intent extra: name for the user's certificate.
-     */
-    public static final String EXTRA_USER_CERTIFICATE_NAME = "user_certificate_name";
-
-    /**
      * Intent extra: data for the user's certificate in PEM-encoded X.509.
      */
     public static final String EXTRA_USER_CERTIFICATE_DATA = "user_certificate_data";
 
     /**
-     * Intent extra: name for CA certificate chain
-     */
-    public static final String EXTRA_CA_CERTIFICATES_NAME = "ca_certificates_name";
-
-    /**
      * Intent extra: data for CA certificate chain in PEM-encoded X.509.
      */
     public static final String EXTRA_CA_CERTIFICATES_DATA = "ca_certificates_data";
diff --git a/keystore/java/android/security/IKeyChainService.aidl b/keystore/java/android/security/IKeyChainService.aidl
index b3cdff7..97da3cc 100644
--- a/keystore/java/android/security/IKeyChainService.aidl
+++ b/keystore/java/android/security/IKeyChainService.aidl
@@ -43,7 +43,8 @@
     String installCaCertificate(in byte[] caCertificate);
 
     // APIs used by DevicePolicyManager
-    boolean installKeyPair(in byte[] privateKey, in byte[] userCert, in byte[] certChain, String alias);
+    boolean installKeyPair(
+        in byte[] privateKey, in byte[] userCert, in byte[] certChain, String alias, int uid);
     boolean removeKeyPair(String alias);
 
     // APIs used by Settings
diff --git a/media/java/android/media/ExifInterface.java b/media/java/android/media/ExifInterface.java
index 55583d5..5b53565 100644
--- a/media/java/android/media/ExifInterface.java
+++ b/media/java/android/media/ExifInterface.java
@@ -62,6 +62,7 @@
 import java.util.Date;
 import java.util.HashMap;
 import java.util.HashSet;
+import java.util.Locale;
 import java.util.Map;
 import java.util.Set;
 import java.util.TimeZone;
@@ -1451,6 +1452,37 @@
     }
 
     /**
+     * Returns whether ExifInterface currently supports parsing data from the specified mime type
+     * or not.
+     *
+     * @param mimeType the string value of mime type
+     */
+    public static boolean isSupportedMimeType(@NonNull String mimeType) {
+        if (mimeType == null) {
+            throw new NullPointerException("mimeType shouldn't be null");
+        }
+
+        switch (mimeType.toLowerCase(Locale.ROOT)) {
+            case "image/jpeg":
+            case "image/x-adobe-dng":
+            case "image/x-canon-cr2":
+            case "image/x-nikon-nef":
+            case "image/x-nikon-nrw":
+            case "image/x-sony-arw":
+            case "image/x-panasonic-rw2":
+            case "image/x-olympus-orf":
+            case "image/x-pentax-pef":
+            case "image/x-samsung-srw":
+            case "image/x-fuji-raf":
+            case "image/heic":
+            case "image/heif":
+                return true;
+            default:
+                return false;
+        }
+    }
+
+    /**
      * Returns the EXIF attribute of the specified tag or {@code null} if there is no such tag in
      * the image file.
      *
diff --git a/media/jni/android_media_MediaDataSource.cpp b/media/jni/android_media_MediaDataSource.cpp
index 8c38d88..9705b91 100644
--- a/media/jni/android_media_MediaDataSource.cpp
+++ b/media/jni/android_media_MediaDataSource.cpp
@@ -106,7 +106,8 @@
     }
 
     ALOGV("readAt %lld / %zu => %d.", (long long)offset, size, numread);
-    env->GetByteArrayRegion(mByteArrayObj, 0, numread, (jbyte*)mMemory->pointer());
+    env->GetByteArrayRegion(mByteArrayObj, 0, numread,
+        (jbyte*)mMemory->unsecurePointer());
     return numread;
 }
 
diff --git a/media/jni/android_media_MediaDescrambler.cpp b/media/jni/android_media_MediaDescrambler.cpp
index aa79ce0..c61365a 100644
--- a/media/jni/android_media_MediaDescrambler.cpp
+++ b/media/jni/android_media_MediaDescrambler.cpp
@@ -220,7 +220,7 @@
         return NO_MEMORY;
     }
 
-    memcpy(mMem->pointer(),
+    memcpy(mMem->unsecurePointer(),
             (const void*)((const uint8_t*)srcPtr + srcOffset), totalLength);
 
     DestinationBuffer dstBuffer;
@@ -248,7 +248,8 @@
 
     if (*status == Status::OK) {
         if (*bytesWritten > 0 && (ssize_t) *bytesWritten <= totalLength) {
-            memcpy((void*)((uint8_t*)dstPtr + dstOffset), mMem->pointer(), *bytesWritten);
+            memcpy((void*)((uint8_t*)dstPtr + dstOffset), mMem->unsecurePointer(),
+                *bytesWritten);
         } else {
             // status seems OK but bytesWritten is invalid, we really
             // have no idea what is wrong.
diff --git a/media/jni/android_media_MediaHTTPConnection.cpp b/media/jni/android_media_MediaHTTPConnection.cpp
index 365e045..53adff3 100644
--- a/media/jni/android_media_MediaHTTPConnection.cpp
+++ b/media/jni/android_media_MediaHTTPConnection.cpp
@@ -148,7 +148,7 @@
                 byteArrayObj,
                 0,
                 n,
-                (jbyte *)conn->getIMemory()->pointer());
+                (jbyte *)conn->getIMemory()->unsecurePointer());
     }
 
     return n;
diff --git a/media/jni/android_media_MediaMetadataRetriever.cpp b/media/jni/android_media_MediaMetadataRetriever.cpp
index 3809bc4..18fd1a0 100644
--- a/media/jni/android_media_MediaMetadataRetriever.cpp
+++ b/media/jni/android_media_MediaMetadataRetriever.cpp
@@ -396,8 +396,12 @@
     // Call native method to retrieve a video frame
     VideoFrame *videoFrame = NULL;
     sp<IMemory> frameMemory = retriever->getFrameAtTime(timeUs, option);
+    // TODO: Using unsecurePointer() has some associated security pitfalls
+    //       (see declaration for details).
+    //       Either document why it is safe in this case or address the
+    //       issue (e.g. by copying).
     if (frameMemory != 0) {  // cast the shared structure to a VideoFrame object
-        videoFrame = static_cast<VideoFrame *>(frameMemory->pointer());
+        videoFrame = static_cast<VideoFrame *>(frameMemory->unsecurePointer());
     }
     if (videoFrame == NULL) {
         ALOGE("getFrameAtTime: videoFrame is a NULL pointer");
@@ -423,7 +427,11 @@
     VideoFrame *videoFrame = NULL;
     sp<IMemory> frameMemory = retriever->getImageAtIndex(index, colorFormat);
     if (frameMemory != 0) {  // cast the shared structure to a VideoFrame object
-        videoFrame = static_cast<VideoFrame *>(frameMemory->pointer());
+        // TODO: Using unsecurePointer() has some associated security pitfalls
+        //       (see declaration for details).
+        //       Either document why it is safe in this case or address the
+        //       issue (e.g. by copying).
+        videoFrame = static_cast<VideoFrame *>(frameMemory->unsecurePointer());
     }
     if (videoFrame == NULL) {
         ALOGE("getImageAtIndex: videoFrame is a NULL pointer");
@@ -454,7 +462,11 @@
     sp<IMemory> frameMemory = retriever->getImageAtIndex(
             index, colorFormat, true /*metaOnly*/, true /*thumbnail*/);
     if (frameMemory != 0) {
-        videoFrame = static_cast<VideoFrame *>(frameMemory->pointer());
+        // TODO: Using unsecurePointer() has some associated security pitfalls
+        //       (see declaration for details).
+        //       Either document why it is safe in this case or address the
+        //       issue (e.g. by copying).
+        videoFrame = static_cast<VideoFrame *>(frameMemory->unsecurePointer());
         int32_t thumbWidth = videoFrame->mWidth;
         int32_t thumbHeight = videoFrame->mHeight;
         videoFrame = NULL;
@@ -467,7 +479,11 @@
                 || thumbPixels * 6 >= maxPixels) {
             frameMemory = retriever->getImageAtIndex(
                     index, colorFormat, false /*metaOnly*/, true /*thumbnail*/);
-            videoFrame = static_cast<VideoFrame *>(frameMemory->pointer());
+            // TODO: Using unsecurePointer() has some associated security pitfalls
+            //       (see declaration for details).
+            //       Either document why it is safe in this case or address the
+            //       issue (e.g. by copying).
+            videoFrame = static_cast<VideoFrame *>(frameMemory->unsecurePointer());
 
             if (thumbPixels > maxPixels) {
                 int downscale = ceil(sqrt(thumbPixels / (float)maxPixels));
@@ -514,11 +530,15 @@
     size_t i = 0;
     for (; i < numFrames; i++) {
         sp<IMemory> frame = retriever->getFrameAtIndex(frameIndex + i, colorFormat);
-        if (frame == NULL || frame->pointer() == NULL) {
+        if (frame == NULL || frame->unsecurePointer() == NULL) {
             ALOGE("video frame at index %zu is a NULL pointer", frameIndex + i);
             break;
         }
-        VideoFrame *videoFrame = static_cast<VideoFrame *>(frame->pointer());
+        // TODO: Using unsecurePointer() has some associated security pitfalls
+        //       (see declaration for details).
+        //       Either document why it is safe in this case or address the
+        //       issue (e.g. by copying).
+        VideoFrame *videoFrame = static_cast<VideoFrame *>(frame->unsecurePointer());
         jobject bitmapObj = getBitmapFromVideoFrame(env, videoFrame, -1, -1, outColorType);
         env->CallBooleanMethod(arrayList, fields.arrayListAdd, bitmapObj);
         env->DeleteLocalRef(bitmapObj);
@@ -551,7 +571,11 @@
     // the method name to getEmbeddedPicture().
     sp<IMemory> albumArtMemory = retriever->extractAlbumArt();
     if (albumArtMemory != 0) {  // cast the shared structure to a MediaAlbumArt object
-        mediaAlbumArt = static_cast<MediaAlbumArt *>(albumArtMemory->pointer());
+        // TODO: Using unsecurePointer() has some associated security pitfalls
+        //       (see declaration for details).
+        //       Either document why it is safe in this case or address the
+        //       issue (e.g. by copying).
+        mediaAlbumArt = static_cast<MediaAlbumArt *>(albumArtMemory->unsecurePointer());
     }
     if (mediaAlbumArt == NULL) {
         ALOGE("getEmbeddedPicture: Call to getEmbeddedPicture failed.");
diff --git a/media/jni/soundpool/SoundPool.h b/media/jni/soundpool/SoundPool.h
index 9d74103..01e4faa 100644
--- a/media/jni/soundpool/SoundPool.h
+++ b/media/jni/soundpool/SoundPool.h
@@ -61,7 +61,7 @@
     audio_channel_mask_t channelMask() { return mChannelMask; }
     size_t size() { return mSize; }
     int state() { return mState; }
-    uint8_t* data() { return static_cast<uint8_t*>(mData->pointer()); }
+    uint8_t* data() { return static_cast<uint8_t*>(mData->unsecurePointer()); }
     status_t doLoad();
     void startLoad() { mState = LOADING; }
     sp<IMemory> getIMemory() { return mData; }
diff --git a/media/tests/audiotests/shared_mem_test.cpp b/media/tests/audiotests/shared_mem_test.cpp
index 2f57499..d586b6a 100644
--- a/media/tests/audiotests/shared_mem_test.cpp
+++ b/media/tests/audiotests/shared_mem_test.cpp
@@ -92,7 +92,7 @@
 
         iMem = heap->allocate(BUF_SZ*sizeof(short));
 
-        p = static_cast<uint8_t*>(iMem->pointer());
+        p = static_cast<uint8_t*>(iMem->unsecurePointer());
         memcpy(p, smpBuf, BUF_SZ*sizeof(short));
 
         sp<AudioTrack> track = new AudioTrack(AUDIO_STREAM_MUSIC,// stream type
diff --git a/core/proto/android/server/backup_chunks_metadata.proto b/packages/BackupEncryption/proto/backup_chunks_metadata.proto
similarity index 97%
rename from core/proto/android/server/backup_chunks_metadata.proto
rename to packages/BackupEncryption/proto/backup_chunks_metadata.proto
index a375f02..2fdedbf 100644
--- a/core/proto/android/server/backup_chunks_metadata.proto
+++ b/packages/BackupEncryption/proto/backup_chunks_metadata.proto
@@ -15,8 +15,10 @@
  */
 
 syntax = "proto2";
-package com.android.server.backup.encryption.chunk;
 
+package android_backup_crypto;
+
+option java_package = "com.android.server.backup.encryption.protos";
 option java_outer_classname = "ChunksMetadataProto";
 
 // Cipher type with which the chunks are encrypted. For now we only support AES/GCM/NoPadding, but
diff --git a/packages/BackupEncryption/src/com/android/server/backup/encryption/CryptoSettings.java b/packages/BackupEncryption/src/com/android/server/backup/encryption/CryptoSettings.java
index 2010620..033f1b1 100644
--- a/packages/BackupEncryption/src/com/android/server/backup/encryption/CryptoSettings.java
+++ b/packages/BackupEncryption/src/com/android/server/backup/encryption/CryptoSettings.java
@@ -30,6 +30,7 @@
 
 import java.security.KeyStoreException;
 import java.util.Optional;
+import java.util.concurrent.TimeUnit;
 
 /**
  * State about encrypted backups that needs to be remembered.
@@ -51,6 +52,9 @@
         SECONDARY_KEY_LAST_ROTATED_AT
     };
 
+    private static final long DEFAULT_SECONDARY_KEY_ROTATION_PERIOD =
+            TimeUnit.MILLISECONDS.convert(31, TimeUnit.DAYS);
+
     private static final String KEY_ANCESTRAL_SECONDARY_KEY_VERSION =
             "ancestral_secondary_key_version";
 
@@ -202,6 +206,11 @@
                 .apply();
     }
 
+    /** The number of milliseconds between secondary key rotation */
+    public long backupSecondaryKeyRotationIntervalMs() {
+        return DEFAULT_SECONDARY_KEY_ROTATION_PERIOD;
+    }
+
     /** Deletes all crypto settings related to backup (as opposed to restore). */
     public void clearAllSettingsForBackup() {
         Editor sharedPrefsEditor = mSharedPreferences.edit();
diff --git a/packages/BackupEncryption/src/com/android/server/backup/encryption/chunk/Chunk.java b/packages/BackupEncryption/src/com/android/server/backup/encryption/chunk/Chunk.java
deleted file mode 100644
index ba32860..0000000
--- a/packages/BackupEncryption/src/com/android/server/backup/encryption/chunk/Chunk.java
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.backup.encryption.chunk;
-
-import android.util.proto.ProtoInputStream;
-
-import java.io.IOException;
-
-/**
- * Information about a chunk entry in a protobuf. Only used for reading from a {@link
- * ProtoInputStream}.
- */
-public class Chunk {
-    /**
-     * Reads a Chunk from a {@link ProtoInputStream}. Expects the message to be of format {@link
-     * ChunksMetadataProto.Chunk}.
-     *
-     * @param inputStream currently at a {@link ChunksMetadataProto.Chunk} message.
-     * @throws IOException when the message is not structured as expected or a field can not be
-     *     read.
-     */
-    static Chunk readFromProto(ProtoInputStream inputStream) throws IOException {
-        Chunk result = new Chunk();
-
-        while (inputStream.nextField() != ProtoInputStream.NO_MORE_FIELDS) {
-            switch (inputStream.getFieldNumber()) {
-                case (int) ChunksMetadataProto.Chunk.HASH:
-                    result.mHash = inputStream.readBytes(ChunksMetadataProto.Chunk.HASH);
-                    break;
-                case (int) ChunksMetadataProto.Chunk.LENGTH:
-                    result.mLength = inputStream.readInt(ChunksMetadataProto.Chunk.LENGTH);
-                    break;
-            }
-        }
-
-        return result;
-    }
-
-    private int mLength;
-    private byte[] mHash;
-
-    /** Private constructor. This class should only be instantiated by calling readFromProto. */
-    private Chunk() {
-        // Set default values for fields in case they are not available in the proto.
-        mHash = new byte[]{};
-        mLength = 0;
-    }
-
-    public int getLength() {
-        return mLength;
-    }
-
-    public byte[] getHash() {
-        return mHash;
-    }
-}
diff --git a/packages/BackupEncryption/src/com/android/server/backup/encryption/chunk/ChunkListingMap.java b/packages/BackupEncryption/src/com/android/server/backup/encryption/chunk/ChunkListingMap.java
deleted file mode 100644
index a448901..0000000
--- a/packages/BackupEncryption/src/com/android/server/backup/encryption/chunk/ChunkListingMap.java
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.backup.encryption.chunk;
-
-import android.annotation.Nullable;
-import android.util.proto.ProtoInputStream;
-
-import java.io.IOException;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Map;
-
-/**
- * Chunk listing in a format optimized for quick look-up of chunks via their hash keys. This is
- * useful when building an incremental backup. After a chunk has been produced, the algorithm can
- * quickly look up whether the chunk existed in the previous backup by checking this chunk listing.
- * It can then tell the server to use that chunk, through telling it the position and length of the
- * chunk in the previous backup's blob.
- */
-public class ChunkListingMap {
-    /**
-     * Reads a ChunkListingMap from a {@link ProtoInputStream}. Expects the message to be of format
-     * {@link ChunksMetadataProto.ChunkListing}.
-     *
-     * @param inputStream Currently at a {@link ChunksMetadataProto.ChunkListing} message.
-     * @throws IOException when the message is not structured as expected or a field can not be
-     *     read.
-     */
-    public static ChunkListingMap readFromProto(ProtoInputStream inputStream) throws IOException {
-        Map<ChunkHash, Entry> entries = new HashMap();
-
-        long start = 0;
-
-        while (inputStream.nextField() != ProtoInputStream.NO_MORE_FIELDS) {
-            if (inputStream.getFieldNumber() == (int) ChunksMetadataProto.ChunkListing.CHUNKS) {
-                long chunkToken = inputStream.start(ChunksMetadataProto.ChunkListing.CHUNKS);
-                Chunk chunk = Chunk.readFromProto(inputStream);
-                entries.put(new ChunkHash(chunk.getHash()), new Entry(start, chunk.getLength()));
-                start += chunk.getLength();
-                inputStream.end(chunkToken);
-            }
-        }
-
-        return new ChunkListingMap(entries);
-    }
-
-    private final Map<ChunkHash, Entry> mChunksByHash;
-
-    private ChunkListingMap(Map<ChunkHash, Entry> chunksByHash) {
-        mChunksByHash = Collections.unmodifiableMap(new HashMap<>(chunksByHash));
-    }
-
-    /** Returns {@code true} if there is a chunk with the given SHA-256 MAC key in the listing. */
-    public boolean hasChunk(ChunkHash hash) {
-        return mChunksByHash.containsKey(hash);
-    }
-
-    /**
-     * Returns the entry for the chunk with the given hash.
-     *
-     * @param hash The SHA-256 MAC of the plaintext of the chunk.
-     * @return The entry, containing position and length of the chunk in the backup blob, or null if
-     *     it does not exist.
-     */
-    @Nullable
-    public Entry getChunkEntry(ChunkHash hash) {
-        return mChunksByHash.get(hash);
-    }
-
-    /** Returns the number of chunks in this listing. */
-    public int getChunkCount() {
-        return mChunksByHash.size();
-    }
-
-    /** Information about a chunk entry in a backup blob - i.e., its position and length. */
-    public static final class Entry {
-        private final int mLength;
-        private final long mStart;
-
-        private Entry(long start, int length) {
-            mStart = start;
-            mLength = length;
-        }
-
-        /** Returns the length of the chunk in bytes. */
-        public int getLength() {
-            return mLength;
-        }
-
-        /** Returns the start position of the chunk in the backup blob, in bytes. */
-        public long getStart() {
-            return mStart;
-        }
-    }
-}
diff --git a/packages/BackupEncryption/src/com/android/server/backup/encryption/chunk/ChunkOrderingType.java b/packages/BackupEncryption/src/com/android/server/backup/encryption/chunk/ChunkOrderingType.java
index 8cb028e..9cda339 100644
--- a/packages/BackupEncryption/src/com/android/server/backup/encryption/chunk/ChunkOrderingType.java
+++ b/packages/BackupEncryption/src/com/android/server/backup/encryption/chunk/ChunkOrderingType.java
@@ -16,9 +16,9 @@
 
 package com.android.server.backup.encryption.chunk;
 
-import static com.android.server.backup.encryption.chunk.ChunksMetadataProto.CHUNK_ORDERING_TYPE_UNSPECIFIED;
-import static com.android.server.backup.encryption.chunk.ChunksMetadataProto.EXPLICIT_STARTS;
-import static com.android.server.backup.encryption.chunk.ChunksMetadataProto.INLINE_LENGTHS;
+import static com.android.server.backup.encryption.protos.nano.ChunksMetadataProto.CHUNK_ORDERING_TYPE_UNSPECIFIED;
+import static com.android.server.backup.encryption.protos.nano.ChunksMetadataProto.EXPLICIT_STARTS;
+import static com.android.server.backup.encryption.protos.nano.ChunksMetadataProto.INLINE_LENGTHS;
 
 import android.annotation.IntDef;
 
diff --git a/packages/BackupEncryption/src/com/android/server/backup/encryption/chunking/InlineLengthsEncryptedChunkEncoder.java b/packages/BackupEncryption/src/com/android/server/backup/encryption/chunking/InlineLengthsEncryptedChunkEncoder.java
index 7b38dd4..6b9be9f 100644
--- a/packages/BackupEncryption/src/com/android/server/backup/encryption/chunking/InlineLengthsEncryptedChunkEncoder.java
+++ b/packages/BackupEncryption/src/com/android/server/backup/encryption/chunking/InlineLengthsEncryptedChunkEncoder.java
@@ -17,7 +17,7 @@
 package com.android.server.backup.encryption.chunking;
 
 import com.android.server.backup.encryption.chunk.ChunkOrderingType;
-import com.android.server.backup.encryption.chunk.ChunksMetadataProto;
+import com.android.server.backup.encryption.protos.nano.ChunksMetadataProto;
 
 import java.io.IOException;
 
diff --git a/packages/BackupEncryption/src/com/android/server/backup/encryption/chunking/LengthlessEncryptedChunkEncoder.java b/packages/BackupEncryption/src/com/android/server/backup/encryption/chunking/LengthlessEncryptedChunkEncoder.java
index 567f75d..e707350 100644
--- a/packages/BackupEncryption/src/com/android/server/backup/encryption/chunking/LengthlessEncryptedChunkEncoder.java
+++ b/packages/BackupEncryption/src/com/android/server/backup/encryption/chunking/LengthlessEncryptedChunkEncoder.java
@@ -17,7 +17,7 @@
 package com.android.server.backup.encryption.chunking;
 
 import com.android.server.backup.encryption.chunk.ChunkOrderingType;
-import com.android.server.backup.encryption.chunk.ChunksMetadataProto;
+import com.android.server.backup.encryption.protos.nano.ChunksMetadataProto;
 
 import java.io.IOException;
 
diff --git a/packages/BackupEncryption/src/com/android/server/backup/encryption/keys/SecondaryKeyRotationScheduler.java b/packages/BackupEncryption/src/com/android/server/backup/encryption/keys/SecondaryKeyRotationScheduler.java
new file mode 100644
index 0000000..91b57cf
--- /dev/null
+++ b/packages/BackupEncryption/src/com/android/server/backup/encryption/keys/SecondaryKeyRotationScheduler.java
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.backup.encryption.keys;
+
+import android.content.Context;
+import android.util.Slog;
+
+import com.android.server.backup.encryption.CryptoSettings;
+import com.android.server.backup.encryption.tasks.StartSecondaryKeyRotationTask;
+
+import java.io.File;
+import java.time.Clock;
+import java.util.Optional;
+
+/**
+ * Helps schedule rotations of secondary keys.
+ *
+ * <p>TODO(b/72028016) Replace with a job.
+ */
+public class SecondaryKeyRotationScheduler {
+
+    private static final String TAG = "SecondaryKeyRotationScheduler";
+    private static final String SENTINEL_FILE_PATH = "force_secondary_key_rotation";
+
+    private final Context mContext;
+    private final RecoverableKeyStoreSecondaryKeyManager mSecondaryKeyManager;
+    private final CryptoSettings mCryptoSettings;
+    private final Clock mClock;
+
+    public SecondaryKeyRotationScheduler(
+            Context context,
+            RecoverableKeyStoreSecondaryKeyManager secondaryKeyManager,
+            CryptoSettings cryptoSettings,
+            Clock clock) {
+        mContext = context;
+        mCryptoSettings = cryptoSettings;
+        mClock = clock;
+        mSecondaryKeyManager = secondaryKeyManager;
+    }
+
+    /**
+     * Returns {@code true} if a sentinel file for forcing secondary key rotation is present. This
+     * is only for testing purposes.
+     */
+    private boolean isForceRotationTestSentinelPresent() {
+        File file = new File(mContext.getFilesDir(), SENTINEL_FILE_PATH);
+        if (file.exists()) {
+            file.delete();
+            return true;
+        }
+        return false;
+    }
+
+    /** Start the key rotation task if it's time to do so */
+    public void startRotationIfScheduled() {
+        if (isForceRotationTestSentinelPresent()) {
+            Slog.i(TAG, "Found force flag for secondary rotation. Starting now.");
+            startRotation();
+            return;
+        }
+
+        Optional<Long> maybeLastRotated = mCryptoSettings.getSecondaryLastRotated();
+        if (!maybeLastRotated.isPresent()) {
+            Slog.v(TAG, "No previous rotation, scheduling from now.");
+            scheduleRotationFromNow();
+            return;
+        }
+
+        long lastRotated = maybeLastRotated.get();
+        long now = mClock.millis();
+
+        if (lastRotated > now) {
+            Slog.i(TAG, "Last rotation was in the future. Clock must have changed. Rotate now.");
+            startRotation();
+            return;
+        }
+
+        long millisSinceLastRotation = now - lastRotated;
+        long rotationInterval = mCryptoSettings.backupSecondaryKeyRotationIntervalMs();
+        if (millisSinceLastRotation >= rotationInterval) {
+            Slog.i(
+                    TAG,
+                    "Last rotation was more than "
+                            + rotationInterval
+                            + "ms ("
+                            + millisSinceLastRotation
+                            + "ms) in the past. Rotate now.");
+            startRotation();
+        }
+
+        Slog.v(TAG, "No rotation required, last " + lastRotated + ".");
+    }
+
+    private void startRotation() {
+        scheduleRotationFromNow();
+        new StartSecondaryKeyRotationTask(mCryptoSettings, mSecondaryKeyManager).run();
+    }
+
+    private void scheduleRotationFromNow() {
+        mCryptoSettings.setSecondaryLastRotated(mClock.millis());
+    }
+}
diff --git a/packages/BackupEncryption/src/com/android/server/backup/encryption/tasks/StartSecondaryKeyRotationTask.java b/packages/BackupEncryption/src/com/android/server/backup/encryption/tasks/StartSecondaryKeyRotationTask.java
new file mode 100644
index 0000000..77cfded
--- /dev/null
+++ b/packages/BackupEncryption/src/com/android/server/backup/encryption/tasks/StartSecondaryKeyRotationTask.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.backup.encryption.tasks;
+
+import android.security.keystore.recovery.InternalRecoveryServiceException;
+import android.security.keystore.recovery.LockScreenRequiredException;
+import android.util.Slog;
+
+import com.android.internal.util.Preconditions;
+import com.android.server.backup.encryption.CryptoSettings;
+import com.android.server.backup.encryption.keys.RecoverableKeyStoreSecondaryKey;
+import com.android.server.backup.encryption.keys.RecoverableKeyStoreSecondaryKeyManager;
+
+import java.security.UnrecoverableKeyException;
+import java.util.Optional;
+
+/**
+ * Starts rotating to a new secondary key. Cannot complete until the screen is unlocked and the new
+ * key is synced.
+ */
+public class StartSecondaryKeyRotationTask {
+    private static final String TAG = "BE-StSecondaryKeyRotTsk";
+
+    private final CryptoSettings mCryptoSettings;
+    private final RecoverableKeyStoreSecondaryKeyManager mSecondaryKeyManager;
+
+    public StartSecondaryKeyRotationTask(
+            CryptoSettings cryptoSettings,
+            RecoverableKeyStoreSecondaryKeyManager secondaryKeyManager) {
+        mCryptoSettings = Preconditions.checkNotNull(cryptoSettings);
+        mSecondaryKeyManager = Preconditions.checkNotNull(secondaryKeyManager);
+    }
+
+    /** Begin the key rotation */
+    public void run() {
+        Slog.i(TAG, "Attempting to initiate a secondary key rotation.");
+
+        Optional<String> maybeCurrentAlias = mCryptoSettings.getActiveSecondaryKeyAlias();
+        if (!maybeCurrentAlias.isPresent()) {
+            Slog.w(TAG, "No active current alias. Cannot trigger a secondary rotation.");
+            return;
+        }
+        String currentAlias = maybeCurrentAlias.get();
+
+        Optional<String> maybeNextAlias = mCryptoSettings.getNextSecondaryKeyAlias();
+        if (maybeNextAlias.isPresent()) {
+            String nextAlias = maybeNextAlias.get();
+            if (nextAlias.equals(currentAlias)) {
+                // Shouldn't be possible, but guard against accidentally deleting the active key.
+                Slog.e(TAG, "Was already trying to rotate to what is already the active key.");
+            } else {
+                Slog.w(TAG, "Was already rotating to another key. Cancelling that.");
+                try {
+                    mSecondaryKeyManager.remove(nextAlias);
+                } catch (Exception e) {
+                    Slog.wtf(TAG, "Could not remove old key", e);
+                }
+            }
+            mCryptoSettings.removeNextSecondaryKeyAlias();
+        }
+
+        RecoverableKeyStoreSecondaryKey newSecondaryKey;
+        try {
+            newSecondaryKey = mSecondaryKeyManager.generate();
+        } catch (LockScreenRequiredException e) {
+            Slog.e(TAG, "No lock screen is set - cannot generate a new key to rotate to.", e);
+            return;
+        } catch (InternalRecoveryServiceException e) {
+            Slog.e(TAG, "Internal error in Recovery Controller, failed to rotate key.", e);
+            return;
+        } catch (UnrecoverableKeyException e) {
+            Slog.e(TAG, "Failed to get key after generating, failed to rotate", e);
+            return;
+        }
+
+        String alias = newSecondaryKey.getAlias();
+        Slog.i(TAG, "Generated a new secondary key with alias '" + alias + "'.");
+        try {
+            mCryptoSettings.setNextSecondaryAlias(alias);
+            Slog.i(TAG, "Successfully set '" + alias + "' as next key to rotate to");
+        } catch (IllegalArgumentException e) {
+            Slog.e(TAG, "Unexpected error setting next alias", e);
+            try {
+                mSecondaryKeyManager.remove(alias);
+            } catch (Exception err) {
+                Slog.wtf(TAG, "Failed to remove generated key after encountering error", err);
+            }
+        }
+    }
+}
diff --git a/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/chunk/ChunkListingMapTest.java b/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/chunk/ChunkListingMapTest.java
deleted file mode 100644
index 24e5573..0000000
--- a/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/chunk/ChunkListingMapTest.java
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.backup.encryption.chunk;
-
-import static com.google.common.truth.Truth.assertThat;
-
-import android.platform.test.annotations.Presubmit;
-import android.util.proto.ProtoInputStream;
-import android.util.proto.ProtoOutputStream;
-
-import com.android.internal.util.Preconditions;
-
-import com.google.common.base.Charsets;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-
-import java.io.ByteArrayInputStream;
-import java.util.Arrays;
-
-@RunWith(RobolectricTestRunner.class)
-@Presubmit
-public class ChunkListingMapTest {
-    private static final String CHUNK_A = "CHUNK_A";
-    private static final String CHUNK_B = "CHUNK_B";
-    private static final String CHUNK_C = "CHUNK_C";
-
-    private static final int CHUNK_A_LENGTH = 256;
-    private static final int CHUNK_B_LENGTH = 1024;
-    private static final int CHUNK_C_LENGTH = 4055;
-
-    private ChunkHash mChunkHashA;
-    private ChunkHash mChunkHashB;
-    private ChunkHash mChunkHashC;
-
-    @Before
-    public void setUp() throws Exception {
-        mChunkHashA = getHash(CHUNK_A);
-        mChunkHashB = getHash(CHUNK_B);
-        mChunkHashC = getHash(CHUNK_C);
-    }
-
-    @Test
-    public void testHasChunk_whenChunkInListing_returnsTrue() throws Exception {
-        byte[] chunkListingProto =
-                createChunkListingProto(
-                        new ChunkHash[] {mChunkHashA, mChunkHashB, mChunkHashC},
-                        new int[] {CHUNK_A_LENGTH, CHUNK_B_LENGTH, CHUNK_C_LENGTH});
-        ChunkListingMap chunkListingMap =
-                ChunkListingMap.readFromProto(
-                        new ProtoInputStream(new ByteArrayInputStream(chunkListingProto)));
-
-        boolean chunkAInList = chunkListingMap.hasChunk(mChunkHashA);
-        boolean chunkBInList = chunkListingMap.hasChunk(mChunkHashB);
-        boolean chunkCInList = chunkListingMap.hasChunk(mChunkHashC);
-
-        assertThat(chunkAInList).isTrue();
-        assertThat(chunkBInList).isTrue();
-        assertThat(chunkCInList).isTrue();
-    }
-
-    @Test
-    public void testHasChunk_whenChunkNotInListing_returnsFalse() throws Exception {
-        byte[] chunkListingProto =
-                createChunkListingProto(
-                        new ChunkHash[] {mChunkHashA, mChunkHashB},
-                        new int[] {CHUNK_A_LENGTH, CHUNK_B_LENGTH});
-        ChunkListingMap chunkListingMap =
-                ChunkListingMap.readFromProto(
-                        new ProtoInputStream(new ByteArrayInputStream(chunkListingProto)));
-        ChunkHash chunkHashEmpty = getHash("");
-
-        boolean chunkCInList = chunkListingMap.hasChunk(mChunkHashC);
-        boolean emptyChunkInList = chunkListingMap.hasChunk(chunkHashEmpty);
-
-        assertThat(chunkCInList).isFalse();
-        assertThat(emptyChunkInList).isFalse();
-    }
-
-    @Test
-    public void testGetChunkEntry_returnsEntryWithCorrectLength() throws Exception {
-        byte[] chunkListingProto =
-                createChunkListingProto(
-                        new ChunkHash[] {mChunkHashA, mChunkHashB, mChunkHashC},
-                        new int[] {CHUNK_A_LENGTH, CHUNK_B_LENGTH, CHUNK_C_LENGTH});
-        ChunkListingMap chunkListingMap =
-                ChunkListingMap.readFromProto(
-                        new ProtoInputStream(new ByteArrayInputStream(chunkListingProto)));
-
-        ChunkListingMap.Entry entryA = chunkListingMap.getChunkEntry(mChunkHashA);
-        ChunkListingMap.Entry entryB = chunkListingMap.getChunkEntry(mChunkHashB);
-        ChunkListingMap.Entry entryC = chunkListingMap.getChunkEntry(mChunkHashC);
-
-        assertThat(entryA.getLength()).isEqualTo(CHUNK_A_LENGTH);
-        assertThat(entryB.getLength()).isEqualTo(CHUNK_B_LENGTH);
-        assertThat(entryC.getLength()).isEqualTo(CHUNK_C_LENGTH);
-    }
-
-    @Test
-    public void testGetChunkEntry_returnsEntryWithCorrectStart() throws Exception {
-        byte[] chunkListingProto =
-                createChunkListingProto(
-                        new ChunkHash[] {mChunkHashA, mChunkHashB, mChunkHashC},
-                        new int[] {CHUNK_A_LENGTH, CHUNK_B_LENGTH, CHUNK_C_LENGTH});
-        ChunkListingMap chunkListingMap =
-                ChunkListingMap.readFromProto(
-                        new ProtoInputStream(new ByteArrayInputStream(chunkListingProto)));
-
-        ChunkListingMap.Entry entryA = chunkListingMap.getChunkEntry(mChunkHashA);
-        ChunkListingMap.Entry entryB = chunkListingMap.getChunkEntry(mChunkHashB);
-        ChunkListingMap.Entry entryC = chunkListingMap.getChunkEntry(mChunkHashC);
-
-        assertThat(entryA.getStart()).isEqualTo(0);
-        assertThat(entryB.getStart()).isEqualTo(CHUNK_A_LENGTH);
-        assertThat(entryC.getStart()).isEqualTo(CHUNK_A_LENGTH + CHUNK_B_LENGTH);
-    }
-
-    @Test
-    public void testGetChunkEntry_returnsNullForNonExistentChunk() throws Exception {
-        byte[] chunkListingProto =
-                createChunkListingProto(
-                        new ChunkHash[] {mChunkHashA, mChunkHashB},
-                        new int[] {CHUNK_A_LENGTH, CHUNK_B_LENGTH});
-        ChunkListingMap chunkListingMap =
-                ChunkListingMap.readFromProto(
-                        new ProtoInputStream(new ByteArrayInputStream(chunkListingProto)));
-
-        ChunkListingMap.Entry chunkEntryNonexistentChunk =
-                chunkListingMap.getChunkEntry(mChunkHashC);
-
-        assertThat(chunkEntryNonexistentChunk).isNull();
-    }
-
-    @Test
-    public void testReadFromProto_whenEmptyProto_returnsChunkListingMapWith0Chunks()
-            throws Exception {
-        ProtoInputStream emptyProto = new ProtoInputStream(new ByteArrayInputStream(new byte[] {}));
-
-        ChunkListingMap chunkListingMap = ChunkListingMap.readFromProto(emptyProto);
-
-        assertThat(chunkListingMap.getChunkCount()).isEqualTo(0);
-    }
-
-    @Test
-    public void testReadFromProto_returnsChunkListingWithCorrectSize() throws Exception {
-        byte[] chunkListingProto =
-                createChunkListingProto(
-                        new ChunkHash[] {mChunkHashA, mChunkHashB, mChunkHashC},
-                        new int[] {CHUNK_A_LENGTH, CHUNK_B_LENGTH, CHUNK_C_LENGTH});
-
-        ChunkListingMap chunkListingMap =
-                ChunkListingMap.readFromProto(
-                        new ProtoInputStream(new ByteArrayInputStream(chunkListingProto)));
-
-        assertThat(chunkListingMap.getChunkCount()).isEqualTo(3);
-    }
-
-    private byte[] createChunkListingProto(ChunkHash[] hashes, int[] lengths) {
-        Preconditions.checkArgument(hashes.length == lengths.length);
-        ProtoOutputStream outputStream = new ProtoOutputStream();
-
-        for (int i = 0; i < hashes.length; ++i) {
-            writeToProtoOutputStream(outputStream, hashes[i], lengths[i]);
-        }
-        outputStream.flush();
-
-        return outputStream.getBytes();
-    }
-
-    private void writeToProtoOutputStream(ProtoOutputStream out, ChunkHash chunkHash, int length) {
-        long token = out.start(ChunksMetadataProto.ChunkListing.CHUNKS);
-        out.write(ChunksMetadataProto.Chunk.HASH, chunkHash.getHash());
-        out.write(ChunksMetadataProto.Chunk.LENGTH, length);
-        out.end(token);
-    }
-
-    private ChunkHash getHash(String name) {
-        return new ChunkHash(
-                Arrays.copyOf(name.getBytes(Charsets.UTF_8), ChunkHash.HASH_LENGTH_BYTES));
-    }
-}
diff --git a/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/chunk/ChunkTest.java b/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/chunk/ChunkTest.java
deleted file mode 100644
index 1796f56..0000000
--- a/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/chunk/ChunkTest.java
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.backup.encryption.chunk;
-
-import static com.google.common.truth.Truth.assertThat;
-
-import android.platform.test.annotations.Presubmit;
-import android.util.proto.ProtoInputStream;
-import android.util.proto.ProtoOutputStream;
-
-import com.google.common.base.Charsets;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-
-import java.io.ByteArrayInputStream;
-import java.util.Arrays;
-
-@RunWith(RobolectricTestRunner.class)
-@Presubmit
-public class ChunkTest {
-    private static final String CHUNK_A = "CHUNK_A";
-    private static final int CHUNK_A_LENGTH = 256;
-
-    private ChunkHash mChunkHashA;
-
-    @Before
-    public void setUp() throws Exception {
-        mChunkHashA = getHash(CHUNK_A);
-    }
-
-    @Test
-    public void testReadFromProto_readsCorrectly() throws Exception {
-        ProtoOutputStream out = new ProtoOutputStream();
-        out.write(ChunksMetadataProto.Chunk.HASH, mChunkHashA.getHash());
-        out.write(ChunksMetadataProto.Chunk.LENGTH, CHUNK_A_LENGTH);
-        out.flush();
-        byte[] protoBytes = out.getBytes();
-
-        Chunk chunk =
-                Chunk.readFromProto(new ProtoInputStream(new ByteArrayInputStream(protoBytes)));
-
-        assertThat(chunk.getHash()).isEqualTo(mChunkHashA.getHash());
-        assertThat(chunk.getLength()).isEqualTo(CHUNK_A_LENGTH);
-    }
-
-    @Test
-    public void testReadFromProto_whenFieldsWrittenInReversedOrder_readsCorrectly()
-            throws Exception {
-        ProtoOutputStream out = new ProtoOutputStream();
-        // Write fields of Chunk proto in reverse order.
-        out.write(ChunksMetadataProto.Chunk.LENGTH, CHUNK_A_LENGTH);
-        out.write(ChunksMetadataProto.Chunk.HASH, mChunkHashA.getHash());
-        out.flush();
-        byte[] protoBytes = out.getBytes();
-
-        Chunk chunk =
-                Chunk.readFromProto(new ProtoInputStream(new ByteArrayInputStream(protoBytes)));
-
-        assertThat(chunk.getHash()).isEqualTo(mChunkHashA.getHash());
-        assertThat(chunk.getLength()).isEqualTo(CHUNK_A_LENGTH);
-    }
-
-    @Test
-    public void testReadFromProto_whenEmptyProto_returnsEmptyHash() throws Exception {
-        ProtoInputStream emptyProto = new ProtoInputStream(new ByteArrayInputStream(new byte[] {}));
-
-        Chunk chunk = Chunk.readFromProto(emptyProto);
-
-        assertThat(chunk.getHash()).asList().hasSize(0);
-        assertThat(chunk.getLength()).isEqualTo(0);
-    }
-
-    @Test
-    public void testReadFromProto_whenOnlyHashSet_returnsChunkWithOnlyHash() throws Exception {
-        ProtoOutputStream out = new ProtoOutputStream();
-        out.write(ChunksMetadataProto.Chunk.HASH, mChunkHashA.getHash());
-        out.flush();
-        byte[] protoBytes = out.getBytes();
-
-        Chunk chunk =
-                Chunk.readFromProto(new ProtoInputStream(new ByteArrayInputStream(protoBytes)));
-
-        assertThat(chunk.getHash()).isEqualTo(mChunkHashA.getHash());
-        assertThat(chunk.getLength()).isEqualTo(0);
-    }
-
-    @Test
-    public void testReadFromProto_whenOnlyLengthSet_returnsChunkWithOnlyLength() throws Exception {
-        ProtoOutputStream out = new ProtoOutputStream();
-        out.write(ChunksMetadataProto.Chunk.LENGTH, CHUNK_A_LENGTH);
-        out.flush();
-        byte[] protoBytes = out.getBytes();
-
-        Chunk chunk =
-                Chunk.readFromProto(new ProtoInputStream(new ByteArrayInputStream(protoBytes)));
-
-        assertThat(chunk.getHash()).isEqualTo(new byte[] {});
-        assertThat(chunk.getLength()).isEqualTo(CHUNK_A_LENGTH);
-    }
-
-    private ChunkHash getHash(String name) {
-        return new ChunkHash(
-                Arrays.copyOf(name.getBytes(Charsets.UTF_8), ChunkHash.HASH_LENGTH_BYTES));
-    }
-}
diff --git a/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/chunking/InlineLengthsEncryptedChunkEncoderTest.java b/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/chunking/InlineLengthsEncryptedChunkEncoderTest.java
index 634acdc..7e1fded 100644
--- a/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/chunking/InlineLengthsEncryptedChunkEncoderTest.java
+++ b/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/chunking/InlineLengthsEncryptedChunkEncoderTest.java
@@ -24,7 +24,7 @@
 import android.platform.test.annotations.Presubmit;
 
 import com.android.server.backup.encryption.chunk.ChunkHash;
-import com.android.server.backup.encryption.chunk.ChunksMetadataProto;
+import com.android.server.backup.encryption.protos.nano.ChunksMetadataProto;
 
 import org.junit.Before;
 import org.junit.Test;
diff --git a/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/chunking/LengthlessEncryptedChunkEncoderTest.java b/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/chunking/LengthlessEncryptedChunkEncoderTest.java
index d231603..6f58ee1 100644
--- a/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/chunking/LengthlessEncryptedChunkEncoderTest.java
+++ b/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/chunking/LengthlessEncryptedChunkEncoderTest.java
@@ -24,7 +24,7 @@
 import android.platform.test.annotations.Presubmit;
 
 import com.android.server.backup.encryption.chunk.ChunkHash;
-import com.android.server.backup.encryption.chunk.ChunksMetadataProto;
+import com.android.server.backup.encryption.protos.nano.ChunksMetadataProto;
 
 import org.junit.Before;
 import org.junit.Test;
diff --git a/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/keys/SecondaryKeyRotationSchedulerTest.java b/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/keys/SecondaryKeyRotationSchedulerTest.java
new file mode 100644
index 0000000..c31d19d
--- /dev/null
+++ b/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/keys/SecondaryKeyRotationSchedulerTest.java
@@ -0,0 +1,179 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.backup.encryption.keys;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.platform.test.annotations.Presubmit;
+
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.server.backup.encryption.CryptoSettings;
+import com.android.server.backup.encryption.tasks.StartSecondaryKeyRotationTask;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+import org.robolectric.annotation.Implementation;
+import org.robolectric.annotation.Implements;
+import org.robolectric.annotation.Resetter;
+
+import java.io.File;
+import java.time.Clock;
+
+@Config(shadows = SecondaryKeyRotationSchedulerTest.ShadowStartSecondaryKeyRotationTask.class)
+@RunWith(RobolectricTestRunner.class)
+@Presubmit
+public class SecondaryKeyRotationSchedulerTest {
+    private static final String SENTINEL_FILE_PATH = "force_secondary_key_rotation";
+
+    @Mock private RecoverableKeyStoreSecondaryKeyManager mSecondaryKeyManager;
+    @Mock private Clock mClock;
+
+    private CryptoSettings mCryptoSettings;
+    private SecondaryKeyRotationScheduler mScheduler;
+    private long mRotationIntervalMillis;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        Context application = ApplicationProvider.getApplicationContext();
+
+        mCryptoSettings = CryptoSettings.getInstanceForTesting(application);
+        mRotationIntervalMillis = mCryptoSettings.backupSecondaryKeyRotationIntervalMs();
+
+        mScheduler =
+                new SecondaryKeyRotationScheduler(
+                        application, mSecondaryKeyManager, mCryptoSettings, mClock);
+        ShadowStartSecondaryKeyRotationTask.reset();
+    }
+
+    @Test
+    public void startRotationIfScheduled_rotatesIfRotationWasFarEnoughInThePast() {
+        long lastRotated = 100009;
+        mCryptoSettings.setSecondaryLastRotated(lastRotated);
+        setNow(lastRotated + mRotationIntervalMillis);
+
+        mScheduler.startRotationIfScheduled();
+
+        assertThat(ShadowStartSecondaryKeyRotationTask.sRan).isTrue();
+    }
+
+    @Test
+    public void startRotationIfScheduled_setsNewRotationTimeIfRotationWasFarEnoughInThePast() {
+        long lastRotated = 100009;
+        long now = lastRotated + mRotationIntervalMillis;
+        mCryptoSettings.setSecondaryLastRotated(lastRotated);
+        setNow(now);
+
+        mScheduler.startRotationIfScheduled();
+
+        assertThat(mCryptoSettings.getSecondaryLastRotated().get()).isEqualTo(now);
+    }
+
+    @Test
+    public void startRotationIfScheduled_rotatesIfClockHasChanged() {
+        long lastRotated = 100009;
+        mCryptoSettings.setSecondaryLastRotated(lastRotated);
+        setNow(lastRotated - 1);
+
+        mScheduler.startRotationIfScheduled();
+
+        assertThat(ShadowStartSecondaryKeyRotationTask.sRan).isTrue();
+    }
+
+    @Test
+    public void startRotationIfScheduled_rotatesIfSentinelFileIsPresent() throws Exception {
+        File file = new File(RuntimeEnvironment.application.getFilesDir(), SENTINEL_FILE_PATH);
+        file.createNewFile();
+
+        mScheduler.startRotationIfScheduled();
+
+        assertThat(ShadowStartSecondaryKeyRotationTask.sRan).isTrue();
+    }
+
+    @Test
+    public void startRotationIfScheduled_setsNextRotationIfClockHasChanged() {
+        long lastRotated = 100009;
+        long now = lastRotated - 1;
+        mCryptoSettings.setSecondaryLastRotated(lastRotated);
+        setNow(now);
+
+        mScheduler.startRotationIfScheduled();
+
+        assertThat(mCryptoSettings.getSecondaryLastRotated().get()).isEqualTo(now);
+    }
+
+    @Test
+    public void startRotationIfScheduled_doesNothingIfRotationWasRecentEnough() {
+        long lastRotated = 100009;
+        mCryptoSettings.setSecondaryLastRotated(lastRotated);
+        setNow(lastRotated + mRotationIntervalMillis - 1);
+
+        mScheduler.startRotationIfScheduled();
+
+        assertThat(ShadowStartSecondaryKeyRotationTask.sRan).isFalse();
+    }
+
+    @Test
+    public void startRotationIfScheduled_doesNotSetRotationTimeIfRotationWasRecentEnough() {
+        long lastRotated = 100009;
+        mCryptoSettings.setSecondaryLastRotated(lastRotated);
+        setNow(lastRotated + mRotationIntervalMillis - 1);
+
+        mScheduler.startRotationIfScheduled();
+
+        assertThat(mCryptoSettings.getSecondaryLastRotated().get()).isEqualTo(lastRotated);
+    }
+
+    @Test
+    public void startRotationIfScheduled_setsLastRotatedToNowIfNeverRotated() {
+        long now = 13295436;
+        setNow(now);
+
+        mScheduler.startRotationIfScheduled();
+
+        assertThat(mCryptoSettings.getSecondaryLastRotated().get()).isEqualTo(now);
+    }
+
+    private void setNow(long timestamp) {
+        when(mClock.millis()).thenReturn(timestamp);
+    }
+
+    @Implements(StartSecondaryKeyRotationTask.class)
+    public static class ShadowStartSecondaryKeyRotationTask {
+        private static boolean sRan = false;
+
+        @Implementation
+        public void run() {
+            sRan = true;
+        }
+
+        @Resetter
+        public static void reset() {
+            sRan = false;
+        }
+    }
+}
diff --git a/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/tasks/StartSecondaryKeyRotationTaskTest.java b/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/tasks/StartSecondaryKeyRotationTaskTest.java
new file mode 100644
index 0000000..4ac4fa8
--- /dev/null
+++ b/packages/BackupEncryption/test/robolectric/src/com/android/server/backup/encryption/tasks/StartSecondaryKeyRotationTaskTest.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.backup.encryption.tasks;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.platform.test.annotations.Presubmit;
+import android.security.keystore.recovery.RecoveryController;
+
+import com.android.server.backup.encryption.CryptoSettings;
+import com.android.server.backup.encryption.keys.RecoverableKeyStoreSecondaryKey;
+import com.android.server.backup.encryption.keys.RecoverableKeyStoreSecondaryKeyManager;
+import com.android.server.testing.shadows.ShadowRecoveryController;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+
+import java.security.SecureRandom;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(shadows = {ShadowRecoveryController.class})
+@Presubmit
+public class StartSecondaryKeyRotationTaskTest {
+
+    private CryptoSettings mCryptoSettings;
+    private RecoverableKeyStoreSecondaryKeyManager mSecondaryKeyManager;
+    private StartSecondaryKeyRotationTask mStartSecondaryKeyRotationTask;
+
+    @Before
+    public void setUp() throws Exception {
+        mSecondaryKeyManager =
+                new RecoverableKeyStoreSecondaryKeyManager(
+                        RecoveryController.getInstance(RuntimeEnvironment.application),
+                        new SecureRandom());
+        mCryptoSettings = CryptoSettings.getInstanceForTesting(RuntimeEnvironment.application);
+        mStartSecondaryKeyRotationTask =
+                new StartSecondaryKeyRotationTask(mCryptoSettings, mSecondaryKeyManager);
+
+        ShadowRecoveryController.reset();
+    }
+
+    @Test
+    public void run_doesNothingIfNoActiveSecondaryExists() {
+        mStartSecondaryKeyRotationTask.run();
+
+        assertThat(mCryptoSettings.getNextSecondaryKeyAlias().isPresent()).isFalse();
+    }
+
+    @Test
+    public void run_doesNotRemoveExistingNextSecondaryKeyIfItIsAlreadyActive() throws Exception {
+        generateAnActiveKey();
+        String activeAlias = mCryptoSettings.getActiveSecondaryKeyAlias().get();
+        mCryptoSettings.setNextSecondaryAlias(activeAlias);
+
+        mStartSecondaryKeyRotationTask.run();
+
+        assertThat(mSecondaryKeyManager.get(activeAlias).isPresent()).isTrue();
+    }
+
+    @Test
+    public void run_doesRemoveExistingNextSecondaryKeyIfItIsNotYetActive() throws Exception {
+        generateAnActiveKey();
+        RecoverableKeyStoreSecondaryKey nextKey = mSecondaryKeyManager.generate();
+        String nextAlias = nextKey.getAlias();
+        mCryptoSettings.setNextSecondaryAlias(nextAlias);
+
+        mStartSecondaryKeyRotationTask.run();
+
+        assertThat(mSecondaryKeyManager.get(nextAlias).isPresent()).isFalse();
+    }
+
+    @Test
+    public void run_generatesANewNextSecondaryKey() throws Exception {
+        generateAnActiveKey();
+
+        mStartSecondaryKeyRotationTask.run();
+
+        assertThat(mCryptoSettings.getNextSecondaryKeyAlias().isPresent()).isTrue();
+    }
+
+    @Test
+    public void run_generatesANewKeyThatExistsInKeyStore() throws Exception {
+        generateAnActiveKey();
+
+        mStartSecondaryKeyRotationTask.run();
+
+        String nextAlias = mCryptoSettings.getNextSecondaryKeyAlias().get();
+        assertThat(mSecondaryKeyManager.get(nextAlias).isPresent()).isTrue();
+    }
+
+    private void generateAnActiveKey() throws Exception {
+        RecoverableKeyStoreSecondaryKey secondaryKey = mSecondaryKeyManager.generate();
+        mCryptoSettings.setActiveSecondaryKeyAlias(secondaryKey.getAlias());
+    }
+}
diff --git a/packages/CarrierDefaultApp/tests/unit/Android.bp b/packages/CarrierDefaultApp/tests/unit/Android.bp
index 96144cf..5655abb 100644
--- a/packages/CarrierDefaultApp/tests/unit/Android.bp
+++ b/packages/CarrierDefaultApp/tests/unit/Android.bp
@@ -17,7 +17,6 @@
     certificate: "platform",
     libs: [
         "android.test.runner",
-        "telephony-common",
         "android.test.base",
     ],
     static_libs: [
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
index 32fc7ff..720266a 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
@@ -1521,14 +1521,14 @@
             return false;
         }
 
-        // Special cases for location providers (sigh).
-        if (Settings.Secure.LOCATION_PROVIDERS_ALLOWED.equals(name)) {
-            return updateLocationProvidersAllowedLocked(value, tag, owningUserId, makeDefault,
-                    forceNotify);
-        }
-
         // Mutate the value.
         synchronized (mLock) {
+            // Special cases for location providers (sigh).
+            if (Settings.Secure.LOCATION_PROVIDERS_ALLOWED.equals(name)) {
+                return updateLocationProvidersAllowedLocked(value, tag, owningUserId, makeDefault,
+                        forceNotify);
+            }
+
             switch (operation) {
                 case MUTATION_OPERATION_INSERT: {
                     return mSettingsRegistry.insertSettingLocked(SETTINGS_TYPE_SECURE,
diff --git a/packages/Shell/src/com/android/shell/BugreportProgressService.java b/packages/Shell/src/com/android/shell/BugreportProgressService.java
index 8c0108d..602fe3e 100644
--- a/packages/Shell/src/com/android/shell/BugreportProgressService.java
+++ b/packages/Shell/src/com/android/shell/BugreportProgressService.java
@@ -1264,9 +1264,7 @@
         }
         return new Notification.Builder(context, NOTIFICATION_CHANNEL_ID)
                 .addExtras(sNotificationBundle)
-                .setSmallIcon(
-                        isTv(context) ? R.drawable.ic_bug_report_black_24dp
-                                : com.android.internal.R.drawable.stat_sys_adb)
+                .setSmallIcon(R.drawable.ic_bug_report_black_24dp)
                 .setLocalOnly(true)
                 .setColor(context.getColor(
                         com.android.internal.R.color.system_notification_accent_color))
diff --git a/packages/SystemUI/plugin/src/com/android/systemui/plugins/SensorManagerPlugin.java b/packages/SystemUI/plugin/src/com/android/systemui/plugins/SensorManagerPlugin.java
index 60435d0..d62c1d4 100644
--- a/packages/SystemUI/plugin/src/com/android/systemui/plugins/SensorManagerPlugin.java
+++ b/packages/SystemUI/plugin/src/com/android/systemui/plugins/SensorManagerPlugin.java
@@ -22,7 +22,7 @@
 
 /**
  * Allows for additional sensors to be retrieved from
- * {@link com.android.systemui.util.AsyncSensorManager}.
+ * {@link com.android.systemui.util.sensors.AsyncSensorManager}.
  */
 @ProvidesInterface(action = SensorManagerPlugin.ACTION, version = SensorManagerPlugin.VERSION)
 public interface SensorManagerPlugin extends Plugin {
diff --git a/packages/SystemUI/res/drawable/biometric_dialog_bg.xml b/packages/SystemUI/res/drawable/biometric_dialog_bg.xml
deleted file mode 100644
index 0c6d57d..0000000
--- a/packages/SystemUI/res/drawable/biometric_dialog_bg.xml
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<!--
-  ~ Copyright (C) 2018 The Android Open Source Project
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~      http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License
-  -->
-
-<shape xmlns:android="http://schemas.android.com/apk/res/android">
-    <solid android:color="?android:attr/colorBackgroundFloating" />
-    <corners
-        android:topLeftRadius="@dimen/biometric_dialog_corner_size"
-        android:topRightRadius="@dimen/biometric_dialog_corner_size"
-        android:bottomLeftRadius="@dimen/biometric_dialog_corner_size"
-        android:bottomRightRadius="@dimen/biometric_dialog_corner_size"/>
-</shape>
diff --git a/packages/SystemUI/res/layout/auth_biometric_contents.xml b/packages/SystemUI/res/layout/auth_biometric_contents.xml
index 925e4fa..a1006a8 100644
--- a/packages/SystemUI/res/layout/auth_biometric_contents.xml
+++ b/packages/SystemUI/res/layout/auth_biometric_contents.xml
@@ -42,7 +42,6 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:paddingHorizontal="24dp"
-        android:paddingBottom="48dp"
         android:paddingTop="8dp"
         android:gravity="@integer/biometric_dialog_text_gravity"
         android:textSize="16sp"
@@ -52,6 +51,7 @@
         android:id="@+id/biometric_icon"
         android:layout_width="@dimen/biometric_dialog_biometric_icon_size"
         android:layout_height="@dimen/biometric_dialog_biometric_icon_size"
+        android:paddingTop="48dp"
         android:layout_gravity="center_horizontal"
         android:scaleType="fitXY" />
 
diff --git a/packages/SystemUI/res/layout/biometric_dialog.xml b/packages/SystemUI/res/layout/biometric_dialog.xml
deleted file mode 100644
index e687cdf..0000000
--- a/packages/SystemUI/res/layout/biometric_dialog.xml
+++ /dev/null
@@ -1,190 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (C) 2018 The Android Open Source Project
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~      http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License
-  -->
-<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/layout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-    <ImageView
-        android:id="@+id/background"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:scaleType="center" />
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:gravity="bottom"
-        android:background="@color/biometric_dialog_dim_color"
-        android:orientation="vertical">
-
-        <!-- This is not a Space since Spaces cannot be clicked -->
-        <View
-            android:id="@+id/space"
-            android:layout_width="match_parent"
-            android:layout_height="0dp"
-            android:layout_weight="1"
-            android:contentDescription="@string/biometric_dialog_empty_space_description"/>
-
-        <ScrollView
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content">
-
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:orientation="horizontal">
-
-                <!-- This is not a Space since Spaces cannot be clicked. The width of this changes
-                depending on horizontal/portrait orientation -->
-                <View
-                    android:id="@+id/left_space"
-                    android:layout_weight="1"
-                    android:layout_width="0dp"
-                    android:layout_height="match_parent"
-                    android:contentDescription="@string/biometric_dialog_empty_space_description"/>
-
-                    <LinearLayout
-                        android:id="@+id/dialog"
-                        android:layout_width="match_parent"
-                        android:layout_height="wrap_content"
-                        android:orientation="vertical"
-                        android:background="@drawable/biometric_dialog_bg"
-                        android:layout_marginBottom="@dimen/biometric_dialog_border_padding"
-                        android:layout_marginLeft="@dimen/biometric_dialog_border_padding"
-                        android:layout_marginRight="@dimen/biometric_dialog_border_padding">
-
-                        <TextView
-                            android:id="@+id/title"
-                            android:fontFamily="@*android:string/config_headlineFontFamilyMedium"
-                            android:layout_width="match_parent"
-                            android:layout_height="wrap_content"
-                            android:layout_marginEnd="24dp"
-                            android:layout_marginStart="24dp"
-                            android:layout_marginTop="24dp"
-                            android:gravity="@integer/biometric_dialog_text_gravity"
-                            android:textSize="20sp"
-                            android:textColor="?android:attr/textColorPrimary"/>
-
-                        <TextView
-                            android:id="@+id/subtitle"
-                            android:layout_width="match_parent"
-                            android:layout_height="wrap_content"
-                            android:layout_marginTop="8dp"
-                            android:layout_marginStart="24dp"
-                            android:layout_marginEnd="24dp"
-                            android:gravity="@integer/biometric_dialog_text_gravity"
-                            android:textSize="16sp"
-                            android:textColor="?android:attr/textColorPrimary"/>
-
-                        <TextView
-                            android:id="@+id/description"
-                            android:layout_width="match_parent"
-                            android:layout_height="wrap_content"
-                            android:layout_marginEnd="24dp"
-                            android:layout_marginStart="24dp"
-                            android:gravity="@integer/biometric_dialog_text_gravity"
-                            android:paddingTop="8dp"
-                            android:textSize="16sp"
-                            android:textColor="?android:attr/textColorPrimary"/>
-
-                        <ImageView
-                            android:id="@+id/biometric_icon"
-                            android:layout_width="@dimen/biometric_dialog_biometric_icon_size"
-                            android:layout_height="@dimen/biometric_dialog_biometric_icon_size"
-                            android:layout_gravity="center_horizontal"
-                            android:layout_marginTop="48dp"
-                            android:scaleType="fitXY" />
-
-                        <TextView
-                            android:id="@+id/error"
-                            android:layout_width="match_parent"
-                            android:layout_height="wrap_content"
-                            android:layout_marginEnd="24dp"
-                            android:layout_marginStart="24dp"
-                            android:paddingTop="16dp"
-                            android:paddingBottom="24dp"
-                            android:textSize="12sp"
-                            android:gravity="center_horizontal"
-                            android:accessibilityLiveRegion="polite"
-                            android:textColor="@color/biometric_dialog_gray"/>
-
-                        <LinearLayout
-                            android:layout_width="match_parent"
-                            android:layout_height="72dip"
-                            android:paddingTop="24dp"
-                            android:layout_gravity="center_vertical"
-                            style="?android:attr/buttonBarStyle"
-                            android:orientation="horizontal"
-                            android:measureWithLargestChild="true">
-                            <Space android:id="@+id/leftSpacer"
-                                android:layout_width="12dp"
-                                android:layout_height="match_parent"
-                                android:visibility="visible" />
-                            <!-- Negative Button -->
-                            <Button android:id="@+id/button2"
-                                android:layout_width="wrap_content"
-                                android:layout_height="match_parent"
-                                style="@*android:style/Widget.DeviceDefault.Button.Borderless.Colored"
-                                android:gravity="center"
-                                android:maxLines="2" />
-                            <Space android:id="@+id/middleSpacer"
-                                android:layout_width="0dp"
-                                android:layout_height="match_parent"
-                                android:layout_weight="1"
-                                android:visibility="visible" />
-                            <!-- Positive Button -->
-                            <Button android:id="@+id/button1"
-                                android:layout_width="wrap_content"
-                                android:layout_height="match_parent"
-                                style="@*android:style/Widget.DeviceDefault.Button.Colored"
-                                android:gravity="center"
-                                android:maxLines="2"
-                                android:text="@string/biometric_dialog_confirm"
-                                android:visibility="gone"/>
-                            <!-- Try Again Button -->
-                            <Button android:id="@+id/button_try_again"
-                                android:layout_width="wrap_content"
-                                android:layout_height="match_parent"
-                                style="@*android:style/Widget.DeviceDefault.Button.Colored"
-                                android:gravity="center"
-                                android:maxLines="2"
-                                android:text="@string/biometric_dialog_try_again"
-                                android:visibility="gone"/>
-                            <Space android:id="@+id/rightSpacer"
-                                android:layout_width="12dip"
-                                android:layout_height="match_parent"
-                                android:visibility="visible" />
-                        </LinearLayout>
-                    </LinearLayout>
-
-                <!-- This is not a Space since Spaces cannot be clicked. The width of this changes
-                depending on horizontal/portrait orientation -->
-                <View
-                    android:id="@+id/right_space"
-                    android:layout_weight="1"
-                    android:layout_width="0dp"
-                    android:layout_height="match_parent"
-                    android:contentDescription="@string/biometric_dialog_empty_space_description"/>
-
-            </LinearLayout>
-
-        </ScrollView>
-
-    </LinearLayout>
-
-</FrameLayout>
diff --git a/packages/SystemUI/res/values/config.xml b/packages/SystemUI/res/values/config.xml
index 38293bf..61210d3 100644
--- a/packages/SystemUI/res/values/config.xml
+++ b/packages/SystemUI/res/values/config.xml
@@ -480,4 +480,7 @@
     <!-- Preferred refresh rate at keyguard, if supported by the display -->
     <integer name="config_keyguardRefreshRate">-1</integer>
 
+    <!-- Whether or not to add a "people" notifications section -->
+    <bool name="config_usePeopleFiltering">false</bool>
+
 </resources>
diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/system/PinnedStackListenerForwarder.java b/packages/SystemUI/shared/src/com/android/systemui/shared/system/PinnedStackListenerForwarder.java
index 2797042..3ae2df5b 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/system/PinnedStackListenerForwarder.java
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/system/PinnedStackListenerForwarder.java
@@ -16,10 +16,9 @@
 
 package com.android.systemui.shared.system;
 
-import android.content.ComponentName;
 import android.content.pm.ParceledListSlice;
 import android.graphics.Rect;
-import android.view.DisplayInfo;
+import android.os.RemoteException;
 import android.view.IPinnedStackController;
 import android.view.IPinnedStackListener;
 
@@ -33,132 +32,62 @@
  * previously set listener.
  */
 public class PinnedStackListenerForwarder extends IPinnedStackListener.Stub {
-    private List<PinnedStackListener> mListeners = new ArrayList<>();
+    private List<IPinnedStackListener> mListeners = new ArrayList<>();
 
     /** Adds a listener to receive updates from the WindowManagerService. */
-    public void addListener(PinnedStackListener listener) {
+    public void addListener(IPinnedStackListener listener) {
         mListeners.add(listener);
     }
 
     /** Removes a listener so it will no longer receive updates from the WindowManagerService. */
-    public void removeListener(PinnedStackListener listener) {
+    public void removeListener(IPinnedStackListener listener) {
         mListeners.remove(listener);
     }
 
     @Override
-    public void onListenerRegistered(IPinnedStackController controller) {
-        for (PinnedStackListener listener : mListeners) {
+    public void onListenerRegistered(IPinnedStackController controller) throws RemoteException {
+        for (IPinnedStackListener listener : mListeners) {
             listener.onListenerRegistered(controller);
         }
     }
 
     @Override
-    public void onMovementBoundsChanged(Rect animatingBounds, boolean fromImeAdjustment,
-            boolean fromShelfAdjustment) {
-        for (PinnedStackListener listener : mListeners) {
-            listener.onMovementBoundsChanged(animatingBounds, fromImeAdjustment,
-                    fromShelfAdjustment);
+    public void onMovementBoundsChanged(Rect insetBounds, Rect normalBounds, Rect animatingBounds,
+            boolean fromImeAdjustment, boolean fromShelfAdjustment, int displayRotation)
+            throws RemoteException {
+        for (IPinnedStackListener listener : mListeners) {
+            listener.onMovementBoundsChanged(
+                    insetBounds, normalBounds, animatingBounds,
+                    fromImeAdjustment, fromShelfAdjustment, displayRotation);
         }
     }
 
     @Override
-    public void onImeVisibilityChanged(boolean imeVisible, int imeHeight) {
-        for (PinnedStackListener listener : mListeners) {
+    public void onImeVisibilityChanged(boolean imeVisible, int imeHeight) throws RemoteException {
+        for (IPinnedStackListener listener : mListeners) {
             listener.onImeVisibilityChanged(imeVisible, imeHeight);
         }
     }
 
     @Override
-    public void onShelfVisibilityChanged(boolean shelfVisible, int shelfHeight) {
-        for (PinnedStackListener listener : mListeners) {
+    public void onShelfVisibilityChanged(boolean shelfVisible, int shelfHeight)
+            throws RemoteException {
+        for (IPinnedStackListener listener : mListeners) {
             listener.onShelfVisibilityChanged(shelfVisible, shelfHeight);
         }
     }
 
     @Override
-    public void onMinimizedStateChanged(boolean isMinimized) {
-        for (PinnedStackListener listener : mListeners) {
+    public void onMinimizedStateChanged(boolean isMinimized) throws RemoteException {
+        for (IPinnedStackListener listener : mListeners) {
             listener.onMinimizedStateChanged(isMinimized);
         }
     }
 
     @Override
-    public void onActionsChanged(ParceledListSlice actions) {
-        for (PinnedStackListener listener : mListeners) {
+    public void onActionsChanged(ParceledListSlice actions) throws RemoteException {
+        for (IPinnedStackListener listener : mListeners) {
             listener.onActionsChanged(actions);
         }
     }
-
-    @Override
-    public void onSaveReentrySnapFraction(ComponentName componentName, Rect bounds) {
-        for (PinnedStackListener listener : mListeners) {
-            listener.onSaveReentrySnapFraction(componentName, bounds);
-        }
-    }
-
-    @Override
-    public void onResetReentrySnapFraction(ComponentName componentName) {
-        for (PinnedStackListener listener : mListeners) {
-            listener.onResetReentrySnapFraction(componentName);
-        }
-    }
-
-    @Override
-    public void onDisplayInfoChanged(DisplayInfo displayInfo) {
-        for (PinnedStackListener listener : mListeners) {
-            listener.onDisplayInfoChanged(displayInfo);
-        }
-    }
-
-    @Override
-    public void onConfigurationChanged() {
-        for (PinnedStackListener listener : mListeners) {
-            listener.onConfigurationChanged();
-        }
-    }
-
-    @Override
-    public void onAspectRatioChanged(float aspectRatio) {
-        for (PinnedStackListener listener : mListeners) {
-            listener.onAspectRatioChanged(aspectRatio);
-        }
-    }
-
-    @Override
-    public void onPrepareAnimation(Rect sourceRectHint, float aspectRatio, Rect bounds) {
-        for (PinnedStackListener listener : mListeners) {
-            listener.onPrepareAnimation(sourceRectHint, aspectRatio, bounds);
-        }
-    }
-
-    /**
-     * A counterpart of {@link IPinnedStackListener} with empty implementations.
-     * Subclasses can ignore those methods they do not intend to take action upon.
-     */
-    public static class PinnedStackListener {
-        public void onListenerRegistered(IPinnedStackController controller) {}
-
-        public void onMovementBoundsChanged(Rect animatingBounds, boolean fromImeAdjustment,
-                boolean fromShelfAdjustment) {}
-
-        public void onImeVisibilityChanged(boolean imeVisible, int imeHeight) {}
-
-        public void onShelfVisibilityChanged(boolean shelfVisible, int shelfHeight) {}
-
-        public void onMinimizedStateChanged(boolean isMinimized) {}
-
-        public void onActionsChanged(ParceledListSlice actions) {}
-
-        public void onSaveReentrySnapFraction(ComponentName componentName, Rect bounds) {}
-
-        public void onResetReentrySnapFraction(ComponentName componentName) {}
-
-        public void onDisplayInfoChanged(DisplayInfo displayInfo) {}
-
-        public void onConfigurationChanged() {}
-
-        public void onAspectRatioChanged(float aspectRatio) {}
-
-        public void onPrepareAnimation(Rect sourceRectHint, float aspectRatio, Rect bounds) {}
-    }
 }
diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/system/WindowManagerWrapper.java b/packages/SystemUI/shared/src/com/android/systemui/shared/system/WindowManagerWrapper.java
index 9f1a1fa..794c30a 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/system/WindowManagerWrapper.java
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/system/WindowManagerWrapper.java
@@ -27,12 +27,12 @@
 import android.os.Handler;
 import android.os.RemoteException;
 import android.util.Log;
+import android.view.IPinnedStackListener;
 import android.view.WindowManager;
 import android.view.WindowManagerGlobal;
 
 import com.android.systemui.shared.recents.view.AppTransitionAnimationSpecsFuture;
 import com.android.systemui.shared.recents.view.RecentsTransition;
-import com.android.systemui.shared.system.PinnedStackListenerForwarder.PinnedStackListener;
 
 public class WindowManagerWrapper {
 
@@ -212,7 +212,7 @@
      * Adds a pinned stack listener, which will receive updates from the window manager service
      * along with any other pinned stack listeners that were added via this method.
      */
-    public void addPinnedStackListener(PinnedStackListener listener) throws RemoteException {
+    public void addPinnedStackListener(IPinnedStackListener listener) throws RemoteException {
         mPinnedStackListenerForwarder.addListener(listener);
         WindowManagerGlobal.getWindowManagerService().registerPinnedStackListener(
                 DEFAULT_DISPLAY, mPinnedStackListenerForwarder);
@@ -221,7 +221,7 @@
     /**
      * Removes a pinned stack listener.
      */
-    public void removePinnedStackListener(PinnedStackListener listener) {
+    public void removePinnedStackListener(IPinnedStackListener listener) {
         mPinnedStackListenerForwarder.removeListener(listener);
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/Dependency.java b/packages/SystemUI/src/com/android/systemui/Dependency.java
index bd5b9c7..ca6803d 100644
--- a/packages/SystemUI/src/com/android/systemui/Dependency.java
+++ b/packages/SystemUI/src/com/android/systemui/Dependency.java
@@ -15,6 +15,7 @@
 package com.android.systemui;
 
 import android.annotation.Nullable;
+import android.app.AlarmManager;
 import android.app.INotificationManager;
 import android.content.res.Configuration;
 import android.hardware.SensorPrivacyManager;
@@ -110,10 +111,10 @@
 import com.android.systemui.statusbar.policy.ZenModeController;
 import com.android.systemui.tuner.TunablePadding.TunablePaddingService;
 import com.android.systemui.tuner.TunerService;
-import com.android.systemui.util.AsyncSensorManager;
 import com.android.systemui.util.leak.GarbageMonitor;
 import com.android.systemui.util.leak.LeakDetector;
 import com.android.systemui.util.leak.LeakReporter;
+import com.android.systemui.util.sensors.AsyncSensorManager;
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
@@ -314,6 +315,7 @@
     @Inject Lazy<INotificationManager> mINotificationManager;
     @Inject Lazy<FalsingManager> mFalsingManager;
     @Inject Lazy<SysUiState> mSysUiStateFlagsContainer;
+    @Inject Lazy<AlarmManager> mAlarmManager;
 
     @Inject
     public Dependency() {
@@ -508,6 +510,7 @@
         mProviders.put(INotificationManager.class, mINotificationManager::get);
         mProviders.put(FalsingManager.class, mFalsingManager::get);
         mProviders.put(SysUiState.class, mSysUiStateFlagsContainer::get);
+        mProviders.put(AlarmManager.class, mAlarmManager::get);
 
         // TODO(b/118592525): to support multi-display , we start to add something which is
         //                    per-display, while others may be global. I think it's time to add
diff --git a/packages/SystemUI/src/com/android/systemui/DependencyProvider.java b/packages/SystemUI/src/com/android/systemui/DependencyProvider.java
index d46a86c..239cbfe 100644
--- a/packages/SystemUI/src/com/android/systemui/DependencyProvider.java
+++ b/packages/SystemUI/src/com/android/systemui/DependencyProvider.java
@@ -23,6 +23,7 @@
 import static com.android.systemui.Dependency.TIME_TICK_HANDLER_NAME;
 
 import android.annotation.Nullable;
+import android.app.AlarmManager;
 import android.app.INotificationManager;
 import android.content.Context;
 import android.hardware.SensorPrivacyManager;
@@ -230,4 +231,11 @@
             @Named(MAIN_HANDLER_NAME) Handler mainHandler) {
         return new DeviceProvisionedControllerImpl(context, mainHandler);
     }
+
+    /** */
+    @Singleton
+    @Provides
+    public AlarmManager provideAlarmManager(Context context) {
+        return context.getSystemService(AlarmManager.class);
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/SystemUIModule.java b/packages/SystemUI/src/com/android/systemui/SystemUIModule.java
index ff4eb83..38f2f5e8 100644
--- a/packages/SystemUI/src/com/android/systemui/SystemUIModule.java
+++ b/packages/SystemUI/src/com/android/systemui/SystemUIModule.java
@@ -24,7 +24,7 @@
 import com.android.systemui.model.SysUiState;
 import com.android.systemui.plugins.statusbar.StatusBarStateController;
 import com.android.systemui.statusbar.phone.KeyguardLiftController;
-import com.android.systemui.util.AsyncSensorManager;
+import com.android.systemui.util.sensors.AsyncSensorManager;
 
 import javax.inject.Singleton;
 
diff --git a/packages/SystemUI/src/com/android/systemui/SystemUIService.java b/packages/SystemUI/src/com/android/systemui/SystemUIService.java
index 1c5e800..8f1fcae 100644
--- a/packages/SystemUI/src/com/android/systemui/SystemUIService.java
+++ b/packages/SystemUI/src/com/android/systemui/SystemUIService.java
@@ -84,7 +84,7 @@
             }
         } else {
             String svc = args[0].toLowerCase();
-            if (Dependency.class.getName().endsWith(svc)) {
+            if (Dependency.class.getName().toLowerCase().endsWith(svc)) {
                 Dependency.staticDump(fd, pw, args);
             }
             for (SystemUI ui: services) {
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricView.java b/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricView.java
index e4d2005..73bbce9 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricView.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricView.java
@@ -608,7 +608,10 @@
                         MeasureSpec.makeMeasureSpec(newWidth, MeasureSpec.EXACTLY),
                         MeasureSpec.makeMeasureSpec(height, MeasureSpec.AT_MOST));
             }
-            totalHeight += child.getMeasuredHeight();
+
+            if (child.getVisibility() != View.GONE) {
+                totalHeight += child.getMeasuredHeight();
+            }
         }
 
         // Use the new width so it's centered horizontally
diff --git a/packages/SystemUI/src/com/android/systemui/bubbles/BubbleController.java b/packages/SystemUI/src/com/android/systemui/bubbles/BubbleController.java
index 43576a4..f86a6bd 100644
--- a/packages/SystemUI/src/com/android/systemui/bubbles/BubbleController.java
+++ b/packages/SystemUI/src/com/android/systemui/bubbles/BubbleController.java
@@ -48,6 +48,7 @@
 import android.app.PendingIntent;
 import android.content.Context;
 import android.content.pm.ActivityInfo;
+import android.content.pm.ParceledListSlice;
 import android.content.res.Configuration;
 import android.graphics.Rect;
 import android.os.RemoteException;
@@ -60,6 +61,8 @@
 import android.util.Pair;
 import android.util.SparseSetArray;
 import android.view.Display;
+import android.view.IPinnedStackController;
+import android.view.IPinnedStackListener;
 import android.view.ViewGroup;
 import android.widget.FrameLayout;
 
@@ -73,7 +76,6 @@
 import com.android.systemui.R;
 import com.android.systemui.plugins.statusbar.StatusBarStateController;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
-import com.android.systemui.shared.system.PinnedStackListenerForwarder;
 import com.android.systemui.shared.system.TaskStackChangeListener;
 import com.android.systemui.shared.system.WindowManagerWrapper;
 import com.android.systemui.statusbar.NotificationLockscreenUserManager;
@@ -924,7 +926,9 @@
 
         @Override
         public void onSingleTaskDisplayDrawn(int displayId) {
-            final Bubble expandedBubble = getExpandedBubble(mContext);
+            final Bubble expandedBubble = mStackView != null
+                    ? mStackView.getExpandedBubble()
+                    : null;
             if (expandedBubble != null && expandedBubble.getDisplayId() == displayId) {
                 expandedBubble.setContentVisibility(true);
             }
@@ -932,7 +936,9 @@
 
         @Override
         public void onSingleTaskDisplayEmpty(int displayId) {
-            final Bubble expandedBubble = getExpandedBubble(mContext);
+            final Bubble expandedBubble = mStackView != null
+                    ? mStackView.getExpandedBubble()
+                    : null;
             if (expandedBubble == null) {
                 return;
             }
@@ -991,12 +997,32 @@
     }
 
     /** PinnedStackListener that dispatches IME visibility updates to the stack. */
-    private class BubblesImeListener extends PinnedStackListenerForwarder.PinnedStackListener {
+    private class BubblesImeListener extends IPinnedStackListener.Stub {
+
+        @Override
+        public void onListenerRegistered(IPinnedStackController controller) throws RemoteException {
+        }
+
+        @Override
+        public void onMovementBoundsChanged(Rect insetBounds, Rect normalBounds,
+                Rect animatingBounds, boolean fromImeAdjustment, boolean fromShelfAdjustment,
+                int displayRotation) throws RemoteException {}
+
         @Override
         public void onImeVisibilityChanged(boolean imeVisible, int imeHeight) {
             if (mStackView != null && mStackView.getBubbleCount() > 0) {
                 mStackView.post(() -> mStackView.onImeVisibilityChanged(imeVisible, imeHeight));
             }
         }
+
+        @Override
+        public void onShelfVisibilityChanged(boolean shelfVisible, int shelfHeight)
+                throws RemoteException {}
+
+        @Override
+        public void onMinimizedStateChanged(boolean isMinimized) throws RemoteException {}
+
+        @Override
+        public void onActionsChanged(ParceledListSlice actions) throws RemoteException {}
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/bubbles/BubbleData.java b/packages/SystemUI/src/com/android/systemui/bubbles/BubbleData.java
index 81c8da8..dbc915a 100644
--- a/packages/SystemUI/src/com/android/systemui/bubbles/BubbleData.java
+++ b/packages/SystemUI/src/com/android/systemui/bubbles/BubbleData.java
@@ -184,6 +184,8 @@
             Log.d(TAG, "notificationEntryUpdated: " + entry);
         }
         Bubble bubble = getBubbleWithKey(entry.key);
+        suppressFlyout = !entry.isVisuallyInterruptive || suppressFlyout;
+
         if (bubble == null) {
             // Create a new bubble
             bubble = new Bubble(mContext, entry);
@@ -193,8 +195,10 @@
         } else {
             // Updates an existing bubble
             bubble.updateEntry(entry);
+            bubble.setSuppressFlyout(suppressFlyout);
             doUpdate(bubble);
         }
+
         if (bubble.shouldAutoExpand()) {
             setSelectedBubbleInternal(bubble);
             if (!mExpanded) {
diff --git a/packages/SystemUI/src/com/android/systemui/classifier/FalsingManagerImpl.java b/packages/SystemUI/src/com/android/systemui/classifier/FalsingManagerImpl.java
index c2b0fe4..20742d6 100644
--- a/packages/SystemUI/src/com/android/systemui/classifier/FalsingManagerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/classifier/FalsingManagerImpl.java
@@ -43,7 +43,7 @@
 import com.android.systemui.plugins.statusbar.StatusBarStateController;
 import com.android.systemui.plugins.statusbar.StatusBarStateController.StateListener;
 import com.android.systemui.statusbar.StatusBarState;
-import com.android.systemui.util.AsyncSensorManager;
+import com.android.systemui.util.sensors.AsyncSensorManager;
 
 import java.io.PrintWriter;
 
diff --git a/packages/SystemUI/src/com/android/systemui/classifier/FalsingManagerProxy.java b/packages/SystemUI/src/com/android/systemui/classifier/FalsingManagerProxy.java
index 85bc22b..914258f 100644
--- a/packages/SystemUI/src/com/android/systemui/classifier/FalsingManagerProxy.java
+++ b/packages/SystemUI/src/com/android/systemui/classifier/FalsingManagerProxy.java
@@ -20,6 +20,7 @@
 import static com.android.systemui.Dependency.MAIN_HANDLER_NAME;
 
 import android.content.Context;
+import android.hardware.SensorManager;
 import android.net.Uri;
 import android.os.Handler;
 import android.provider.DeviceConfig;
@@ -35,7 +36,7 @@
 import com.android.systemui.plugins.PluginListener;
 import com.android.systemui.shared.plugins.PluginManager;
 import com.android.systemui.util.DeviceConfigProxy;
-import com.android.systemui.util.ProximitySensor;
+import com.android.systemui.util.sensors.ProximitySensor;
 
 import java.io.PrintWriter;
 
@@ -66,6 +67,7 @@
             DeviceConfigProxy deviceConfig) {
         mProximitySensor = proximitySensor;
         mProximitySensor.setTag(PROXIMITY_SENSOR_TAG);
+        mProximitySensor.setSensorDelay(SensorManager.SENSOR_DELAY_GAME);
         mDeviceConfig = deviceConfig;
         mDeviceConfigListener =
                 properties -> onDeviceConfigPropertiesChanged(context, properties.getNamespace());
diff --git a/packages/SystemUI/src/com/android/systemui/classifier/brightline/BrightLineFalsingManager.java b/packages/SystemUI/src/com/android/systemui/classifier/brightline/BrightLineFalsingManager.java
index 3f5cae6..0aa66af 100644
--- a/packages/SystemUI/src/com/android/systemui/classifier/brightline/BrightLineFalsingManager.java
+++ b/packages/SystemUI/src/com/android/systemui/classifier/brightline/BrightLineFalsingManager.java
@@ -30,7 +30,7 @@
 import com.android.systemui.classifier.Classifier;
 import com.android.systemui.plugins.FalsingManager;
 import com.android.systemui.util.DeviceConfigProxy;
-import com.android.systemui.util.ProximitySensor;
+import com.android.systemui.util.sensors.ProximitySensor;
 
 import java.io.PrintWriter;
 import java.util.ArrayList;
diff --git a/packages/SystemUI/src/com/android/systemui/classifier/brightline/FalsingClassifier.java b/packages/SystemUI/src/com/android/systemui/classifier/brightline/FalsingClassifier.java
index bf39751..53ca783 100644
--- a/packages/SystemUI/src/com/android/systemui/classifier/brightline/FalsingClassifier.java
+++ b/packages/SystemUI/src/com/android/systemui/classifier/brightline/FalsingClassifier.java
@@ -19,7 +19,7 @@
 import android.view.MotionEvent;
 
 import com.android.systemui.classifier.Classifier;
-import com.android.systemui.util.ProximitySensor;
+import com.android.systemui.util.sensors.ProximitySensor;
 
 import java.util.List;
 
diff --git a/packages/SystemUI/src/com/android/systemui/classifier/brightline/ProximityClassifier.java b/packages/SystemUI/src/com/android/systemui/classifier/brightline/ProximityClassifier.java
index eeca409..f0feb4e 100644
--- a/packages/SystemUI/src/com/android/systemui/classifier/brightline/ProximityClassifier.java
+++ b/packages/SystemUI/src/com/android/systemui/classifier/brightline/ProximityClassifier.java
@@ -23,7 +23,7 @@
 import android.view.MotionEvent;
 
 import com.android.systemui.util.DeviceConfigProxy;
-import com.android.systemui.util.ProximitySensor;
+import com.android.systemui.util.sensors.ProximitySensor;
 
 
 /**
diff --git a/packages/SystemUI/src/com/android/systemui/doze/DozeFactory.java b/packages/SystemUI/src/com/android/systemui/doze/DozeFactory.java
index c367286..bb8c7f1 100644
--- a/packages/SystemUI/src/com/android/systemui/doze/DozeFactory.java
+++ b/packages/SystemUI/src/com/android/systemui/doze/DozeFactory.java
@@ -33,7 +33,7 @@
 import com.android.systemui.plugins.FalsingManager;
 import com.android.systemui.statusbar.phone.BiometricUnlockController;
 import com.android.systemui.statusbar.phone.DozeParameters;
-import com.android.systemui.util.AsyncSensorManager;
+import com.android.systemui.util.sensors.AsyncSensorManager;
 import com.android.systemui.util.wakelock.DelayedWakeLock;
 import com.android.systemui.util.wakelock.WakeLock;
 
@@ -45,7 +45,7 @@
     /** Creates a DozeMachine with its parts for {@code dozeService}. */
     public DozeMachine assembleMachine(DozeService dozeService, FalsingManager falsingManager) {
         Context context = dozeService;
-        SensorManager sensorManager = Dependency.get(AsyncSensorManager.class);
+        AsyncSensorManager sensorManager = Dependency.get(AsyncSensorManager.class);
         AlarmManager alarmManager = context.getSystemService(AlarmManager.class);
         DockManager dockManager = Dependency.get(DockManager.class);
         WakefulnessLifecycle wakefulnessLifecycle = Dependency.get(WakefulnessLifecycle.class);
@@ -91,7 +91,7 @@
                 params.getPolicy());
     }
 
-    private DozeTriggers createDozeTriggers(Context context, SensorManager sensorManager,
+    private DozeTriggers createDozeTriggers(Context context, AsyncSensorManager sensorManager,
             DozeHost host, AlarmManager alarmManager, AmbientDisplayConfiguration config,
             DozeParameters params, Handler handler, WakeLock wakeLock, DozeMachine machine,
             DockManager dockManager) {
diff --git a/packages/SystemUI/src/com/android/systemui/doze/DozeSensors.java b/packages/SystemUI/src/com/android/systemui/doze/DozeSensors.java
index 026a625..67eefc5 100644
--- a/packages/SystemUI/src/com/android/systemui/doze/DozeSensors.java
+++ b/packages/SystemUI/src/com/android/systemui/doze/DozeSensors.java
@@ -26,7 +26,6 @@
 import android.content.Context;
 import android.database.ContentObserver;
 import android.hardware.Sensor;
-import android.hardware.SensorEventListener;
 import android.hardware.SensorManager;
 import android.hardware.TriggerEvent;
 import android.hardware.TriggerEventListener;
@@ -43,11 +42,12 @@
 
 import com.android.internal.logging.MetricsLogger;
 import com.android.internal.logging.nano.MetricsProto;
-import com.android.systemui.R;
+import com.android.systemui.Dependency;
 import com.android.systemui.plugins.SensorManagerPlugin;
+import com.android.systemui.shared.plugins.PluginManager;
 import com.android.systemui.statusbar.phone.DozeParameters;
-import com.android.systemui.util.AlarmTimeout;
-import com.android.systemui.util.AsyncSensorManager;
+import com.android.systemui.util.sensors.AsyncSensorManager;
+import com.android.systemui.util.sensors.ProximitySensor;
 import com.android.systemui.util.wakelock.WakeLock;
 
 import java.io.PrintWriter;
@@ -62,7 +62,7 @@
 
     private final Context mContext;
     private final AlarmManager mAlarmManager;
-    private final SensorManager mSensorManager;
+    private final AsyncSensorManager mSensorManager;
     private final ContentResolver mResolver;
     private final TriggerSensor mPickupSensor;
     private final DozeParameters mDozeParameters;
@@ -74,13 +74,13 @@
     protected TriggerSensor[] mSensors;
 
     private final Handler mHandler = new Handler();
-    private final ProxSensor mProxSensor;
+    private final ProximitySensor mProximitySensor;
     private long mDebounceFrom;
     private boolean mSettingRegistered;
     private boolean mListening;
     private boolean mPaused;
 
-    public DozeSensors(Context context, AlarmManager alarmManager, SensorManager sensorManager,
+    public DozeSensors(Context context, AlarmManager alarmManager, AsyncSensorManager sensorManager,
             DozeParameters dozeParameters, AmbientDisplayConfiguration config, WakeLock wakeLock,
             Callback callback, Consumer<Boolean> proxCallback, AlwaysOnDisplayPolicy policy) {
         mContext = context;
@@ -91,6 +91,7 @@
         mWakeLock = wakeLock;
         mProxCallback = proxCallback;
         mResolver = mContext.getContentResolver();
+        mCallback = callback;
 
         boolean alwaysOn = mConfig.alwaysOnEnabled(UserHandle.USER_CURRENT);
         mSensors = new TriggerSensor[] {
@@ -146,8 +147,11 @@
                         false /* touchscreen */, mConfig.getWakeLockScreenDebounce()),
         };
 
-        mProxSensor = new ProxSensor(policy);
-        mCallback = callback;
+        mProximitySensor = new ProximitySensor(
+                context, sensorManager, Dependency.get(PluginManager.class));
+
+        mProximitySensor.register(
+                proximityEvent -> mProxCallback.accept(!proximityEvent.getNear()));
     }
 
     /**
@@ -236,7 +240,15 @@
     }
 
     public void setProxListening(boolean listen) {
-        mProxSensor.setRequested(listen);
+        if (mProximitySensor.isRegistered() && listen) {
+            mProximitySensor.alertListeners();
+        } else {
+            if (listen) {
+                mProximitySensor.resume();
+            } else {
+                mProximitySensor.pause();
+            }
+        }
     }
 
     private final ContentObserver mSettingsObserver = new ContentObserver(mHandler) {
@@ -267,115 +279,16 @@
     /** Dump current state */
     public void dump(PrintWriter pw) {
         for (TriggerSensor s : mSensors) {
-            pw.print("  Sensor: "); pw.println(s.toString());
+            pw.println("  Sensor: " + s.toString());
         }
-        pw.print("  ProxSensor: "); pw.println(mProxSensor.toString());
+        pw.println("  ProxSensor: " + mProximitySensor.toString());
     }
 
     /**
-     * @return true if prox is currently far, false if near or null if unknown.
+     * @return true if prox is currently near, false if far or null if unknown.
      */
-    public Boolean isProximityCurrentlyFar() {
-        return mProxSensor.mCurrentlyFar;
-    }
-
-    private class ProxSensor implements SensorEventListener {
-
-        boolean mRequested;
-        boolean mRegistered;
-        Boolean mCurrentlyFar;
-        long mLastNear;
-        final AlarmTimeout mCooldownTimer;
-        final AlwaysOnDisplayPolicy mPolicy;
-        final Sensor mSensor;
-        final boolean mUsingBrightnessSensor;
-
-        public ProxSensor(AlwaysOnDisplayPolicy policy) {
-            mPolicy = policy;
-            mCooldownTimer = new AlarmTimeout(mAlarmManager, this::updateRegistered,
-                    "prox_cooldown", mHandler);
-
-            // The default prox sensor can be noisy, so let's use a prox gated brightness sensor
-            // if available.
-            Sensor sensor = DozeSensors.findSensorWithType(mSensorManager,
-                    mContext.getString(R.string.doze_brightness_sensor_type));
-            mUsingBrightnessSensor = sensor != null;
-            if (sensor == null) {
-                sensor = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
-            }
-            mSensor = sensor;
-        }
-
-        void setRequested(boolean requested) {
-            if (mRequested == requested) {
-                // Send an update even if we don't re-register.
-                mHandler.post(() -> {
-                    if (mCurrentlyFar != null) {
-                        mProxCallback.accept(mCurrentlyFar);
-                    }
-                });
-                return;
-            }
-            mRequested = requested;
-            updateRegistered();
-        }
-
-        private void updateRegistered() {
-            setRegistered(mRequested && !mCooldownTimer.isScheduled());
-        }
-
-        private void setRegistered(boolean register) {
-            if (mRegistered == register) {
-                return;
-            }
-            if (register) {
-                mRegistered = mSensorManager.registerListener(this, mSensor,
-                        SensorManager.SENSOR_DELAY_NORMAL, mHandler);
-            } else {
-                mSensorManager.unregisterListener(this);
-                mRegistered = false;
-                mCurrentlyFar = null;
-            }
-        }
-
-        @Override
-        public void onSensorChanged(android.hardware.SensorEvent event) {
-            if (DEBUG) Log.d(TAG, "onSensorChanged " + event);
-
-            if (mUsingBrightnessSensor) {
-                // The custom brightness sensor is gated by the proximity sensor and will return 0
-                // whenever prox is covered.
-                mCurrentlyFar = event.values[0] > 0;
-            } else {
-                mCurrentlyFar = event.values[0] >= event.sensor.getMaximumRange();
-            }
-            mProxCallback.accept(mCurrentlyFar);
-
-            long now = SystemClock.elapsedRealtime();
-            if (mCurrentlyFar == null) {
-                // Sensor has been unregistered by the proxCallback. Do nothing.
-            } else if (!mCurrentlyFar) {
-                mLastNear = now;
-            } else if (mCurrentlyFar && now - mLastNear < mPolicy.proxCooldownTriggerMs) {
-                // If the last near was very recent, we might be using more power for prox
-                // wakeups than we're saving from turning of the screen. Instead, turn it off
-                // for a while.
-                mCooldownTimer.schedule(mPolicy.proxCooldownPeriodMs,
-                        AlarmTimeout.MODE_IGNORE_IF_SCHEDULED);
-                updateRegistered();
-            }
-        }
-
-        @Override
-        public void onAccuracyChanged(Sensor sensor, int accuracy) {
-        }
-
-        @Override
-        public String toString() {
-            return String.format("{registered=%s, requested=%s, coolingDown=%s, currentlyFar=%s,"
-                    + " sensor=%s}", mRegistered, mRequested, mCooldownTimer.isScheduled(),
-                    mCurrentlyFar, mSensor);
-        }
+    public Boolean isProximityCurrentlyNear() {
+        return mProximitySensor.isNear();
     }
 
     @VisibleForTesting
diff --git a/packages/SystemUI/src/com/android/systemui/doze/DozeTriggers.java b/packages/SystemUI/src/com/android/systemui/doze/DozeTriggers.java
index bab64db..80d4b63 100644
--- a/packages/SystemUI/src/com/android/systemui/doze/DozeTriggers.java
+++ b/packages/SystemUI/src/com/android/systemui/doze/DozeTriggers.java
@@ -24,10 +24,6 @@
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.res.Configuration;
-import android.hardware.Sensor;
-import android.hardware.SensorEvent;
-import android.hardware.SensorEventListener;
-import android.hardware.SensorManager;
 import android.hardware.display.AmbientDisplayConfiguration;
 import android.metrics.LogMaker;
 import android.os.Handler;
@@ -39,16 +35,16 @@
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.logging.MetricsLogger;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
-import com.android.internal.util.Preconditions;
 import com.android.systemui.Dependency;
-import com.android.systemui.R;
 import com.android.systemui.dock.DockManager;
 import com.android.systemui.statusbar.phone.DozeParameters;
 import com.android.systemui.util.Assert;
+import com.android.systemui.util.sensors.AsyncSensorManager;
+import com.android.systemui.util.sensors.ProximitySensor;
 import com.android.systemui.util.wakelock.WakeLock;
 
 import java.io.PrintWriter;
-import java.util.function.IntConsumer;
+import java.util.function.Consumer;
 
 /**
  * Handles triggers for ambient state changes.
@@ -67,13 +63,15 @@
      */
     private static boolean sWakeDisplaySensorState = true;
 
+    private static final int PROXIMITY_TIMEOUT_DELAY_MS = 500;
+
     private final Context mContext;
     private final DozeMachine mMachine;
     private final DozeSensors mDozeSensors;
     private final DozeHost mDozeHost;
     private final AmbientDisplayConfiguration mConfig;
     private final DozeParameters mDozeParameters;
-    private final SensorManager mSensorManager;
+    private final AsyncSensorManager mSensorManager;
     private final Handler mHandler;
     private final WakeLock mWakeLock;
     private final boolean mAllowPulseTriggers;
@@ -81,6 +79,7 @@
     private final TriggerReceiver mBroadcastReceiver = new TriggerReceiver();
     private final DockEventListener mDockEventListener = new DockEventListener();
     private final DockManager mDockManager;
+    private final ProximitySensor.ProximityCheck mProxCheck;
 
     private long mNotificationPulseTime;
     private boolean mPulsePending;
@@ -89,7 +88,7 @@
 
     public DozeTriggers(Context context, DozeMachine machine, DozeHost dozeHost,
             AlarmManager alarmManager, AmbientDisplayConfiguration config,
-            DozeParameters dozeParameters, SensorManager sensorManager, Handler handler,
+            DozeParameters dozeParameters, AsyncSensorManager sensorManager, Handler handler,
             WakeLock wakeLock, boolean allowPulseTriggers, DockManager dockManager) {
         mContext = context;
         mMachine = machine;
@@ -105,6 +104,9 @@
                 dozeParameters.getPolicy());
         mUiModeManager = mContext.getSystemService(UiModeManager.class);
         mDockManager = dockManager;
+        mProxCheck = new ProximitySensor.ProximityCheck(
+                new ProximitySensor(mContext, mSensorManager, null),
+                mHandler);
     }
 
     private void onNotification(Runnable onPulseSuppressedListener) {
@@ -134,25 +136,27 @@
         }
     }
 
-    private void proximityCheckThenCall(IntConsumer callback,
+    private void proximityCheckThenCall(Consumer<Boolean> callback,
             boolean alreadyPerformedProxCheck,
             int reason) {
-        Boolean cachedProxFar = mDozeSensors.isProximityCurrentlyFar();
+        Boolean cachedProxNear = mDozeSensors.isProximityCurrentlyNear();
         if (alreadyPerformedProxCheck) {
-            callback.accept(ProximityCheck.RESULT_NOT_CHECKED);
-        } else if (cachedProxFar != null) {
-            callback.accept(cachedProxFar ? ProximityCheck.RESULT_FAR : ProximityCheck.RESULT_NEAR);
+            callback.accept(null);
+        } else if (cachedProxNear != null) {
+            callback.accept(cachedProxNear);
         } else {
             final long start = SystemClock.uptimeMillis();
-            new ProximityCheck() {
-                @Override
-                public void onProximityResult(int result) {
-                    final long end = SystemClock.uptimeMillis();
-                    DozeLog.traceProximityResult(mContext, result == RESULT_NEAR,
-                            end - start, reason);
-                    callback.accept(result);
-                }
-            }.check();
+            mProxCheck.check(PROXIMITY_TIMEOUT_DELAY_MS, near -> {
+                final long end = SystemClock.uptimeMillis();
+                DozeLog.traceProximityResult(
+                        mContext,
+                        near == null ? false : near,
+                        end - start,
+                        reason);
+                callback.accept(near);
+                mWakeLock.release(TAG);
+            });
+            mWakeLock.acquire(TAG);
         }
     }
 
@@ -178,7 +182,7 @@
             }
         } else {
             proximityCheckThenCall((result) -> {
-                if (result == ProximityCheck.RESULT_NEAR) {
+                if (result) {
                     // In pocket, drop event.
                     return;
                 }
@@ -267,7 +271,7 @@
 
         if (wake) {
             proximityCheckThenCall((result) -> {
-                if (result == ProximityCheck.RESULT_NEAR) {
+                if (result) {
                     // In pocket, drop event.
                     return;
                 }
@@ -376,7 +380,7 @@
 
         mPulsePending = true;
         proximityCheckThenCall((result) -> {
-            if (result == ProximityCheck.RESULT_NEAR) {
+            if (result) {
                 // in pocket, abort pulse
                 DozeLog.tracePulseDropped(mContext, "inPocket");
                 mPulsePending = false;
@@ -412,104 +416,11 @@
         pw.print(" notificationPulseTime=");
         pw.println(Formatter.formatShortElapsedTime(mContext, mNotificationPulseTime));
 
-        pw.print(" pulsePending="); pw.println(mPulsePending);
+        pw.println(" pulsePending=" + mPulsePending);
         pw.println("DozeSensors:");
         mDozeSensors.dump(pw);
     }
 
-    /**
-     * @see DozeSensors.ProxSensor
-     */
-    private abstract class ProximityCheck implements SensorEventListener, Runnable {
-        private static final int TIMEOUT_DELAY_MS = 500;
-
-        protected static final int RESULT_UNKNOWN = 0;
-        protected static final int RESULT_NEAR = 1;
-        protected static final int RESULT_FAR = 2;
-        protected static final int RESULT_NOT_CHECKED = 3;
-
-        private boolean mRegistered;
-        private boolean mFinished;
-        private float mMaxRange;
-        private boolean mUsingBrightnessSensor;
-
-        protected abstract void onProximityResult(int result);
-
-        public void check() {
-            Preconditions.checkState(!mFinished && !mRegistered);
-            Sensor sensor = DozeSensors.findSensorWithType(mSensorManager,
-                    mContext.getString(R.string.doze_brightness_sensor_type));
-            mUsingBrightnessSensor = sensor != null;
-            if (sensor == null) {
-                sensor = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
-            }
-            if (sensor == null) {
-                if (DozeMachine.DEBUG) Log.d(TAG, "ProxCheck: No sensor found");
-                finishWithResult(RESULT_UNKNOWN);
-                return;
-            }
-            mDozeSensors.setDisableSensorsInterferingWithProximity(true);
-
-            mMaxRange = sensor.getMaximumRange();
-            mSensorManager.registerListener(this, sensor, SensorManager.SENSOR_DELAY_NORMAL, 0,
-                    mHandler);
-            mHandler.postDelayed(this, TIMEOUT_DELAY_MS);
-            mWakeLock.acquire(TAG);
-            mRegistered = true;
-        }
-
-        /**
-         * @see DozeSensors.ProxSensor#onSensorChanged(SensorEvent)
-         */
-        @Override
-        public void onSensorChanged(SensorEvent event) {
-            if (event.values.length == 0) {
-                if (DozeMachine.DEBUG) Log.d(TAG, "ProxCheck: Event has no values!");
-                finishWithResult(RESULT_UNKNOWN);
-            } else {
-                if (DozeMachine.DEBUG) {
-                    Log.d(TAG, "ProxCheck: Event: value=" + event.values[0] + " max=" + mMaxRange);
-                }
-                final boolean isNear;
-                if (mUsingBrightnessSensor) {
-                    // The custom brightness sensor is gated by the proximity sensor and will
-                    // return 0 whenever prox is covered.
-                    isNear = event.values[0] == 0;
-                } else {
-                    isNear = event.values[0] < mMaxRange;
-                }
-                finishWithResult(isNear ? RESULT_NEAR : RESULT_FAR);
-            }
-        }
-
-        @Override
-        public void run() {
-            if (DozeMachine.DEBUG) Log.d(TAG, "ProxCheck: No event received before timeout");
-            finishWithResult(RESULT_UNKNOWN);
-        }
-
-        private void finishWithResult(int result) {
-            if (mFinished) return;
-            boolean wasRegistered = mRegistered;
-            if (mRegistered) {
-                mHandler.removeCallbacks(this);
-                mSensorManager.unregisterListener(this);
-                mDozeSensors.setDisableSensorsInterferingWithProximity(false);
-                mRegistered = false;
-            }
-            onProximityResult(result);
-            if (wasRegistered) {
-                mWakeLock.release(TAG);
-            }
-            mFinished = true;
-        }
-
-        @Override
-        public void onAccuracyChanged(Sensor sensor, int accuracy) {
-            // noop
-        }
-    }
-
     private class TriggerReceiver extends BroadcastReceiver {
         private boolean mRegistered;
 
diff --git a/packages/SystemUI/src/com/android/systemui/pip/PipBoundsHandler.java b/packages/SystemUI/src/com/android/systemui/pip/PipBoundsHandler.java
index 6795bff..30be775 100644
--- a/packages/SystemUI/src/com/android/systemui/pip/PipBoundsHandler.java
+++ b/packages/SystemUI/src/com/android/systemui/pip/PipBoundsHandler.java
@@ -18,7 +18,6 @@
 
 import static android.util.TypedValue.COMPLEX_UNIT_DIP;
 
-import android.content.ComponentName;
 import android.content.Context;
 import android.content.res.Resources;
 import android.graphics.Point;
@@ -47,6 +46,9 @@
     private static final String TAG = PipBoundsHandler.class.getSimpleName();
     private static final float INVALID_SNAP_FRACTION = -1f;
 
+    // System.identityHashCode guarantees zero for null object.
+    private static final int INVALID_SYSTEM_IDENTITY_TOKEN = 0;
+
     private final Context mContext;
     private final IWindowManager mWindowManager;
     private final PipSnapAlgorithm mSnapAlgorithm;
@@ -56,7 +58,7 @@
     private final Point mTmpDisplaySize = new Point();
 
     private IPinnedStackController mPinnedStackController;
-    private ComponentName mLastPipComponentName;
+    private int mLastPipToken;
     private float mReentrySnapFraction = INVALID_SNAP_FRACTION;
 
     private float mDefaultAspectRatio;
@@ -78,11 +80,8 @@
         mContext = context;
         mSnapAlgorithm = new PipSnapAlgorithm(context);
         mWindowManager = WindowManagerGlobal.getWindowManagerService();
-        reloadResources();
-        // Initialize the aspect ratio to the default aspect ratio.  Don't do this in reload
-        // resources as it would clobber mAspectRatio when entering PiP from fullscreen which
-        // triggers a configuration change and the resources to be reloaded.
         mAspectRatio = mDefaultAspectRatio;
+        reloadResources();
     }
 
     /**
@@ -162,27 +161,27 @@
     }
 
     /**
-     * Responds to IPinnedStackListener on saving reentry snap fraction
-     * for a given {@link ComponentName}.
+     * Responds to IPinnedStackListener on saving reentry snap fraction for a given token.
+     * Token should be generated via {@link System#identityHashCode(Object)}
      */
-    public void onSaveReentrySnapFraction(ComponentName componentName, Rect bounds) {
-        mReentrySnapFraction = getSnapFraction(bounds);
-        mLastPipComponentName = componentName;
+    public void onSaveReentrySnapFraction(int token, Rect stackBounds) {
+        mReentrySnapFraction = getSnapFraction(stackBounds);
+        mLastPipToken = token;
     }
 
     /**
-     * Responds to IPinnedStackListener on resetting reentry snap fraction
-     * for a given {@link ComponentName}.
+     * Responds to IPinnedStackListener on resetting reentry snap fraction for a given token.
+     * Token should be generated via {@link System#identityHashCode(Object)}
      */
-    public void onResetReentrySnapFraction(ComponentName componentName) {
-        if (componentName.equals(mLastPipComponentName)) {
+    public void onResetReentrySnapFraction(int token) {
+        if (mLastPipToken == token) {
             onResetReentrySnapFractionUnchecked();
         }
     }
 
     private void onResetReentrySnapFractionUnchecked() {
         mReentrySnapFraction = INVALID_SNAP_FRACTION;
-        mLastPipComponentName = null;
+        mLastPipToken = INVALID_SYSTEM_IDENTITY_TOKEN;
     }
 
     /**
@@ -213,28 +212,24 @@
     /**
      * Responds to IPinnedStackListener on preparing the pinned stack animation.
      */
-    public void onPrepareAnimation(Rect sourceRectHint, float aspectRatio, Rect bounds) {
-        final Rect destinationBounds;
-        if (bounds == null) {
-            destinationBounds = getDefaultBounds(mReentrySnapFraction);
+    public void onPrepareAnimation(Rect sourceRectHint, float aspectRatio, Rect stackBounds) {
+        final Rect targetStackBounds;
+        if (stackBounds == null) {
+            targetStackBounds = getDefaultBounds(mReentrySnapFraction);
         } else {
-            destinationBounds = new Rect(bounds);
+            targetStackBounds = new Rect();
+            targetStackBounds.set(stackBounds);
         }
         if (isValidPictureInPictureAspectRatio(aspectRatio)) {
-            transformBoundsToAspectRatio(destinationBounds, aspectRatio,
-                    false /* useCurrentMinEdgeSize */);
+            transformBoundsToAspectRatio(targetStackBounds, aspectRatio,
+                    true /* useCurrentMinEdgeSize */);
         }
-        if (destinationBounds.equals(bounds)) {
+        if (targetStackBounds.equals(stackBounds)) {
             return;
         }
         mAspectRatio = aspectRatio;
         onResetReentrySnapFractionUnchecked();
-        try {
-            mPinnedStackController.startAnimation(destinationBounds, sourceRectHint,
-                    -1 /* animationDuration */);
-        } catch (RemoteException e) {
-            Log.e(TAG, "Failed to start PiP animation from SysUI", e);
-        }
+        // TODO: callback Window Manager on starting animation with calculated bounds
     }
 
     /**
@@ -363,7 +358,6 @@
     public void dump(PrintWriter pw, String prefix) {
         final String innerPrefix = prefix + "  ";
         pw.println(prefix + TAG);
-        pw.println(innerPrefix + "mLastPipComponentName=" + mLastPipComponentName);
         pw.println(innerPrefix + "mReentrySnapFraction=" + mReentrySnapFraction);
         pw.println(innerPrefix + "mDisplayInfo=" + mDisplayInfo);
         pw.println(innerPrefix + "mDefaultAspectRatio=" + mDefaultAspectRatio);
diff --git a/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java b/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java
index 8dfae32..3be3422 100644
--- a/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java
+++ b/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java
@@ -32,16 +32,14 @@
 import android.os.RemoteException;
 import android.util.Log;
 import android.util.Pair;
-import android.view.DisplayInfo;
 import android.view.IPinnedStackController;
+import android.view.IPinnedStackListener;
 
 import com.android.systemui.Dependency;
 import com.android.systemui.UiOffloadThread;
 import com.android.systemui.pip.BasePipManager;
-import com.android.systemui.pip.PipBoundsHandler;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
 import com.android.systemui.shared.system.InputConsumerController;
-import com.android.systemui.shared.system.PinnedStackListenerForwarder.PinnedStackListener;
 import com.android.systemui.shared.system.TaskStackChangeListener;
 import com.android.systemui.shared.system.WindowManagerWrapper;
 
@@ -60,12 +58,8 @@
     private IActivityTaskManager mActivityTaskManager;
     private Handler mHandler = new Handler();
 
-    private final PinnedStackListener mPinnedStackListener = new PipManagerPinnedStackListener();
-    private final DisplayInfo mTmpDisplayInfo = new DisplayInfo();
-    private final Rect mTmpInsetBounds = new Rect();
-    private final Rect mTmpNormalBounds = new Rect();
+    private final PinnedStackListener mPinnedStackListener = new PinnedStackListener();
 
-    private PipBoundsHandler mPipBoundsHandler;
     private InputConsumerController mInputConsumerController;
     private PipMenuActivityController mMenuController;
     private PipMediaController mMediaController;
@@ -125,11 +119,11 @@
     /**
      * Handler for messages from the PIP controller.
      */
-    private class PipManagerPinnedStackListener extends PinnedStackListener {
+    private class PinnedStackListener extends IPinnedStackListener.Stub {
+
         @Override
         public void onListenerRegistered(IPinnedStackController controller) {
             mHandler.post(() -> {
-                mPipBoundsHandler.setPinnedStackController(controller);
                 mTouchHandler.setPinnedStackController(controller);
             });
         }
@@ -137,7 +131,6 @@
         @Override
         public void onImeVisibilityChanged(boolean imeVisible, int imeHeight) {
             mHandler.post(() -> {
-                mPipBoundsHandler.onImeVisibilityChanged(imeVisible, imeHeight);
                 mTouchHandler.onImeVisibilityChanged(imeVisible, imeHeight);
             });
         }
@@ -145,66 +138,31 @@
         @Override
         public void onShelfVisibilityChanged(boolean shelfVisible, int shelfHeight) {
             mHandler.post(() -> {
-                mPipBoundsHandler.onShelfVisibilityChanged(shelfVisible, shelfHeight);
-                mTouchHandler.onShelfVisibilityChanged(shelfVisible, shelfHeight);
+               mTouchHandler.onShelfVisibilityChanged(shelfVisible, shelfHeight);
             });
         }
 
         @Override
         public void onMinimizedStateChanged(boolean isMinimized) {
             mHandler.post(() -> {
-                mPipBoundsHandler.onMinimizedStateChanged(isMinimized);
                 mTouchHandler.setMinimizedState(isMinimized, true /* fromController */);
             });
         }
 
         @Override
-        public void onMovementBoundsChanged(Rect animatingBounds, boolean fromImeAdjustment,
-                boolean fromShelfAdjustment) {
+        public void onMovementBoundsChanged(Rect insetBounds, Rect normalBounds,
+                Rect animatingBounds, boolean fromImeAdjustment, boolean fromShelfAdjustment,
+                int displayRotation) {
             mHandler.post(() -> {
-                // Populate the inset / normal bounds and DisplayInfo from mPipBoundsHandler first.
-                mPipBoundsHandler.onMovementBoundsChanged(mTmpInsetBounds, mTmpNormalBounds,
-                        animatingBounds, mTmpDisplayInfo);
-                mTouchHandler.onMovementBoundsChanged(mTmpInsetBounds, mTmpNormalBounds,
-                        animatingBounds, fromImeAdjustment, fromShelfAdjustment,
-                        mTmpDisplayInfo.rotation);
+                mTouchHandler.onMovementBoundsChanged(insetBounds, normalBounds, animatingBounds,
+                        fromImeAdjustment, fromShelfAdjustment, displayRotation);
             });
         }
 
         @Override
         public void onActionsChanged(ParceledListSlice actions) {
-            mHandler.post(() -> mMenuController.setAppActions(actions));
-        }
-
-        @Override
-        public void onSaveReentrySnapFraction(ComponentName componentName, Rect bounds) {
-            mHandler.post(() -> mPipBoundsHandler.onSaveReentrySnapFraction(componentName, bounds));
-        }
-
-        @Override
-        public void onResetReentrySnapFraction(ComponentName componentName) {
-            mHandler.post(() -> mPipBoundsHandler.onResetReentrySnapFraction(componentName));
-        }
-
-        @Override
-        public void onDisplayInfoChanged(DisplayInfo displayInfo) {
-            mHandler.post(() -> mPipBoundsHandler.onDisplayInfoChanged(displayInfo));
-        }
-
-        @Override
-        public void onConfigurationChanged() {
-            mHandler.post(() -> mPipBoundsHandler.onConfigurationChanged());
-        }
-
-        @Override
-        public void onAspectRatioChanged(float aspectRatio) {
-            mHandler.post(() -> mPipBoundsHandler.onAspectRatioChanged(aspectRatio));
-        }
-
-        @Override
-        public void onPrepareAnimation(Rect sourceRectHint, float aspectRatio, Rect bounds) {
             mHandler.post(() -> {
-                mPipBoundsHandler.onPrepareAnimation(sourceRectHint, aspectRatio, bounds);
+                mMenuController.setAppActions(actions);
             });
         }
     }
@@ -226,13 +184,12 @@
         }
         ActivityManagerWrapper.getInstance().registerTaskStackListener(mTaskStackListener);
 
-        mPipBoundsHandler = new PipBoundsHandler(context);
         mInputConsumerController = InputConsumerController.getPipInputConsumer();
         mMediaController = new PipMediaController(context, mActivityManager);
         mMenuController = new PipMenuActivityController(context, mActivityManager, mMediaController,
                 mInputConsumerController);
         mTouchHandler = new PipTouchHandler(context, mActivityManager, mActivityTaskManager,
-                mMenuController, mInputConsumerController, mPipBoundsHandler);
+                mMenuController, mInputConsumerController);
         mAppOpsListener = new PipAppOpsListener(context, mActivityManager,
                 mTouchHandler.getMotionHelper());
 
@@ -295,6 +252,5 @@
         mInputConsumerController.dump(pw, innerPrefix);
         mMenuController.dump(pw, innerPrefix);
         mTouchHandler.dump(pw, innerPrefix);
-        mPipBoundsHandler.dump(pw, innerPrefix);
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/pip/phone/PipTouchHandler.java b/packages/SystemUI/src/com/android/systemui/pip/phone/PipTouchHandler.java
index 1f36d97..30cf412 100644
--- a/packages/SystemUI/src/com/android/systemui/pip/phone/PipTouchHandler.java
+++ b/packages/SystemUI/src/com/android/systemui/pip/phone/PipTouchHandler.java
@@ -48,7 +48,6 @@
 import com.android.internal.os.logging.MetricsLoggerWrapper;
 import com.android.internal.policy.PipSnapAlgorithm;
 import com.android.systemui.R;
-import com.android.systemui.pip.PipBoundsHandler;
 import com.android.systemui.shared.system.InputConsumerController;
 import com.android.systemui.statusbar.FlingAnimationUtils;
 
@@ -76,7 +75,6 @@
     private final IActivityTaskManager mActivityTaskManager;
     private final ViewConfiguration mViewConfig;
     private final PipMenuListener mMenuListener = new PipMenuListener();
-    private final PipBoundsHandler mPipBoundsHandler;
     private IPinnedStackController mPinnedStackController;
 
     private final PipMenuActivityController mMenuController;
@@ -180,8 +178,7 @@
 
     public PipTouchHandler(Context context, IActivityManager activityManager,
             IActivityTaskManager activityTaskManager, PipMenuActivityController menuController,
-            InputConsumerController inputConsumerController,
-            PipBoundsHandler pipBoundsHandler) {
+            InputConsumerController inputConsumerController) {
 
         // Initialize the Pip input consumer
         mContext = context;
@@ -214,8 +211,6 @@
         inputConsumerController.setInputListener(this::handleTouchEvent);
         inputConsumerController.setRegistrationListener(this::onRegistrationChanged);
         onRegistrationChanged(inputConsumerController.isRegistered());
-
-        mPipBoundsHandler = pipBoundsHandler;
     }
 
     public void setTouchEnabled(boolean enabled) {
@@ -792,8 +787,14 @@
         mMovementBounds = isMenuExpanded
                 ? mExpandedMovementBounds
                 : mNormalMovementBounds;
-        mPipBoundsHandler.setMinEdgeSize(
-                isMenuExpanded ? mExpandedShortestEdgeSize : 0);
+        try {
+            if (mPinnedStackController != null) {
+                mPinnedStackController.setMinEdgeSize(
+                        isMenuExpanded ? mExpandedShortestEdgeSize : 0);
+            }
+        } catch (RemoteException e) {
+            Log.e(TAG, "Could not set minimized state", e);
+        }
     }
 
     /**
diff --git a/packages/SystemUI/src/com/android/systemui/pip/tv/PipManager.java b/packages/SystemUI/src/com/android/systemui/pip/tv/PipManager.java
index 81d6973..918af4f 100644
--- a/packages/SystemUI/src/com/android/systemui/pip/tv/PipManager.java
+++ b/packages/SystemUI/src/com/android/systemui/pip/tv/PipManager.java
@@ -19,10 +19,13 @@
 import static android.app.ActivityTaskManager.INVALID_STACK_ID;
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_UNDEFINED;
 import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED;
+import static android.view.Display.DEFAULT_DISPLAY;
 
+import android.app.ActivityManager;
 import android.app.ActivityManager.RunningTaskInfo;
 import android.app.ActivityManager.StackInfo;
 import android.app.ActivityTaskManager;
+import android.app.IActivityManager;
 import android.app.IActivityTaskManager;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
@@ -43,15 +46,16 @@
 import android.text.TextUtils;
 import android.util.Log;
 import android.util.Pair;
-import android.view.DisplayInfo;
+import android.view.IPinnedStackController;
+import android.view.IPinnedStackListener;
+import android.view.IWindowManager;
+import android.view.WindowManagerGlobal;
 
 import com.android.systemui.Dependency;
 import com.android.systemui.R;
 import com.android.systemui.UiOffloadThread;
 import com.android.systemui.pip.BasePipManager;
-import com.android.systemui.pip.PipBoundsHandler;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
-import com.android.systemui.shared.system.PinnedStackListenerForwarder.PinnedStackListener;
 import com.android.systemui.shared.system.TaskStackChangeListener;
 import com.android.systemui.shared.system.WindowManagerWrapper;
 
@@ -107,8 +111,9 @@
     private int mSuspendPipResizingReason;
 
     private Context mContext;
-    private PipBoundsHandler mPipBoundsHandler;
+    private IActivityManager mActivityManager;
     private IActivityTaskManager mActivityTaskManager;
+    private IWindowManager mWindowManager;
     private MediaSessionManager mMediaSessionManager;
     private int mState = STATE_NO_PIP;
     private int mResumeResizePinnedStackRunnableState = STATE_NO_PIP;
@@ -130,16 +135,11 @@
     private PipNotification mPipNotification;
     private ParceledListSlice mCustomActions;
 
-    // Used to calculate the movement bounds
-    private final DisplayInfo mTmpDisplayInfo = new DisplayInfo();
-    private final Rect mTmpInsetBounds = new Rect();
-    private final Rect mTmpNormalBounds = new Rect();
-
     // Keeps track of the IME visibility to adjust the PiP when the IME is visible
     private boolean mImeVisible;
     private int mImeHeightAdjustment;
 
-    private final PinnedStackListener mPinnedStackListener = new PipManagerPinnedStackListener();
+    private final PinnedStackListener mPinnedStackListener = new PinnedStackListener();
 
     private final Runnable mResizePinnedStackRunnable = new Runnable() {
         @Override
@@ -181,7 +181,11 @@
     /**
      * Handler for messages from the PIP controller.
      */
-    private class PipManagerPinnedStackListener extends PinnedStackListener {
+    private class PinnedStackListener extends IPinnedStackListener.Stub {
+
+        @Override
+        public void onListenerRegistered(IPinnedStackController controller) {}
+
         @Override
         public void onImeVisibilityChanged(boolean imeVisible, int imeHeight) {
             if (mState == STATE_PIP) {
@@ -201,13 +205,17 @@
         }
 
         @Override
-        public void onMovementBoundsChanged(Rect animatingBounds, boolean fromImeAdjustment,
-                boolean fromShelfAdjustment) {
+        public void onShelfVisibilityChanged(boolean shelfVisible, int shelfHeight) {}
+
+        @Override
+        public void onMinimizedStateChanged(boolean isMinimized) {}
+
+        @Override
+        public void onMovementBoundsChanged(Rect insetBounds, Rect normalBounds,
+                Rect animatingBounds, boolean fromImeAdjustment, boolean fromShelfAdjustment,
+                int displayRotation) {
             mHandler.post(() -> {
-                // Populate the inset / normal bounds and DisplayInfo from mPipBoundsHandler first.
-                mPipBoundsHandler.onMovementBoundsChanged(mTmpInsetBounds, mTmpNormalBounds,
-                        animatingBounds, mTmpDisplayInfo);
-                mDefaultPipBounds.set(animatingBounds);
+                mDefaultPipBounds.set(normalBounds);
             });
         }
 
@@ -233,8 +241,10 @@
         }
         mInitialized = true;
         mContext = context;
-        mPipBoundsHandler = new PipBoundsHandler(context);
+
+        mActivityManager = ActivityManager.getService();
         mActivityTaskManager = ActivityTaskManager.getService();
+        mWindowManager = WindowManagerGlobal.getWindowManagerService();
         ActivityManagerWrapper.getInstance().registerTaskStackListener(mTaskStackListener);
         IntentFilter intentFilter = new IntentFilter();
         intentFilter.addAction(Intent.ACTION_MEDIA_RESOURCE_GRANTED);
@@ -281,7 +291,7 @@
                 (MediaSessionManager) mContext.getSystemService(Context.MEDIA_SESSION_SERVICE);
 
         try {
-            WindowManagerWrapper.getInstance().addPinnedStackListener(mPinnedStackListener);
+            mWindowManager.registerPinnedStackListener(DEFAULT_DISPLAY, mPinnedStackListener);
         } catch (RemoteException e) {
             Log.e(TAG, "Failed to register pinned stack listener", e);
         }
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSTileHost.java b/packages/SystemUI/src/com/android/systemui/qs/QSTileHost.java
index 61d7498..1e763cf 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSTileHost.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSTileHost.java
@@ -222,7 +222,7 @@
         if (!TILES_SETTING.equals(key)) {
             return;
         }
-        if (DEBUG) Log.d(TAG, "Recreating tiles");
+        Log.d(TAG, "Recreating tiles");
         if (newValue == null && UserManager.isDeviceInDemoMode(mContext)) {
             newValue = mContext.getResources().getString(R.string.quick_settings_tiles_retail_mode);
         }
@@ -231,7 +231,7 @@
         if (tileSpecs.equals(mTileSpecs) && currentUser == mCurrentUser) return;
         mTiles.entrySet().stream().filter(tile -> !tileSpecs.contains(tile.getKey())).forEach(
                 tile -> {
-                    if (DEBUG) Log.d(TAG, "Destroying tile: " + tile.getKey());
+                    Log.d(TAG, "Destroying tile: " + tile.getKey());
                     tile.getValue().destroy();
                 });
         final LinkedHashMap<String, QSTile> newTiles = new LinkedHashMap<>();
@@ -248,9 +248,10 @@
                     newTiles.put(tileSpec, tile);
                 } else {
                     tile.destroy();
+                    Log.d(TAG, "Destroying not available tile: " + tileSpec);
                 }
             } else {
-                if (DEBUG) Log.d(TAG, "Creating tile: " + tileSpec);
+                Log.d(TAG, "Creating tile: " + tileSpec);
                 try {
                     tile = createTile(tileSpec);
                     if (tile != null) {
@@ -259,6 +260,7 @@
                             newTiles.put(tileSpec, tile);
                         } else {
                             tile.destroy();
+                            Log.d(TAG, "Destroying not available tile: " + tileSpec);
                         }
                     }
                 } catch (Throwable t) {
@@ -274,7 +276,7 @@
         mTiles.putAll(newTiles);
         if (newTiles.isEmpty() && !tileSpecs.isEmpty()) {
             // If we didn't manage to create any tiles, set it to empty (default)
-            if (DEBUG) Log.d(TAG, "No valid tiles on tuning changed. Setting to default.");
+            Log.d(TAG, "No valid tiles on tuning changed. Setting to default.");
             changeTiles(currentSpecs, loadTileSpecs(mContext, ""));
         } else {
             for (int i = 0; i < mCallbacks.size(); i++) {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationLockscreenUserManagerImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationLockscreenUserManagerImpl.java
index 289277e..f782fab 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationLockscreenUserManagerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationLockscreenUserManagerImpl.java
@@ -18,6 +18,7 @@
 import static android.app.admin.DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED;
 
 import static com.android.systemui.DejankUtils.whitelistIpcs;
+import static com.android.systemui.statusbar.notification.stack.NotificationSectionsManager.BUCKET_SILENT;
 
 import android.app.ActivityManager;
 import android.app.KeyguardManager;
@@ -316,7 +317,7 @@
         boolean exceedsPriorityThreshold;
         if (NotificationUtils.useNewInterruptionModel(mContext)
                 && hideSilentNotificationsOnLockscreen()) {
-            exceedsPriorityThreshold = entry.isTopBucket();
+            exceedsPriorityThreshold = entry.getBucket() != BUCKET_SILENT;
         } else {
             exceedsPriorityThreshold =
                     !getEntryManager().getNotificationData().isAmbient(entry.key);
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/PulseExpansionHandler.kt b/packages/SystemUI/src/com/android/systemui/statusbar/PulseExpansionHandler.kt
index 276afa7..a70dc7c 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/PulseExpansionHandler.kt
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/PulseExpansionHandler.kt
@@ -33,6 +33,7 @@
 import com.android.systemui.Interpolators
 import com.android.systemui.R
 import com.android.systemui.plugins.FalsingManager
+import com.android.systemui.plugins.statusbar.StatusBarStateController
 import com.android.systemui.statusbar.notification.NotificationWakeUpCoordinator
 import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow
 import com.android.systemui.statusbar.notification.row.ExpandableView
@@ -56,7 +57,8 @@
     private val wakeUpCoordinator: NotificationWakeUpCoordinator,
     private val bypassController: KeyguardBypassController,
     private val headsUpManager: HeadsUpManagerPhone,
-    private val roundnessManager: NotificationRoundnessManager
+    private val roundnessManager: NotificationRoundnessManager,
+    private val statusBarStateController: StatusBarStateController
 ) : Gefingerpoken {
     companion object {
         private val RUBBERBAND_FACTOR_STATIC = 0.25f
@@ -188,7 +190,8 @@
             MotionEvent.ACTION_MOVE -> updateExpansionHeight(moveDistance)
             MotionEvent.ACTION_UP -> {
                 velocityTracker!!.computeCurrentVelocity(1000 /* units */)
-                val canExpand = moveDistance > 0 && velocityTracker!!.getYVelocity() > -1000
+                val canExpand = moveDistance > 0 && velocityTracker!!.getYVelocity() > -1000 &&
+                        statusBarStateController.state != StatusBarState.SHADE
                 if (!mFalsingManager.isUnlockingDisabled && !isFalseTouch && canExpand) {
                     finishExpansion()
                 } else {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/StatusBarStateControllerImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/StatusBarStateControllerImpl.java
index 4422a81..8b9268e 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/StatusBarStateControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/StatusBarStateControllerImpl.java
@@ -20,6 +20,7 @@
 import android.animation.ValueAnimator;
 import android.text.format.DateFormat;
 import android.util.FloatProperty;
+import android.util.Log;
 import android.view.View;
 import android.view.animation.Interpolator;
 
@@ -137,6 +138,11 @@
         // Record the to-be mState and mLastState
         recordHistoricalState(state, mState);
 
+        // b/139259891
+        if (mState == StatusBarState.SHADE && state == StatusBarState.SHADE_LOCKED) {
+            Log.e(TAG, "Invalid state transition: SHADE -> SHADE_LOCKED", new Throwable());
+        }
+
         synchronized (mListeners) {
             String tag = getClass().getSimpleName() + "#setState(" + state + ")";
             DejankUtils.startDetectingBlockingIpcs(tag);
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/NotificationEntryManager.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/NotificationEntryManager.java
index 4a27a4e..b6b149d 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/NotificationEntryManager.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/NotificationEntryManager.java
@@ -124,7 +124,7 @@
 
     @Inject
     public NotificationEntryManager(Context context) {
-        mNotificationData = new NotificationData();
+        mNotificationData = new NotificationData(context);
     }
 
     /** Adds a {@link NotificationEntryListener}. */
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/NotificationUtils.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/NotificationUtils.java
index 1af47dd..dfbbf98 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/NotificationUtils.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/NotificationUtils.java
@@ -36,6 +36,7 @@
     private static final int[] sLocationOffset = new int[2];
 
     @Nullable private static Boolean sUseNewInterruptionModel = null;
+    @Nullable private static Boolean sUsePeopleFiltering = null;
 
     public static boolean isGrayscale(ImageView v, ContrastColorUtil colorUtil) {
         Object isGrayscale = v.getTag(R.id.icon_is_grayscale);
@@ -87,4 +88,17 @@
         }
         return sUseNewInterruptionModel;
     }
+
+    /**
+     * Caches and returns the value of the people filtering setting. Cannot change except through
+     * process restarts.
+     */
+    public static boolean usePeopleFiltering(Context context) {
+        if (sUsePeopleFiltering == null) {
+            sUsePeopleFiltering = context.getResources().getBoolean(
+                    R.bool.config_usePeopleFiltering);
+        }
+
+        return sUsePeopleFiltering;
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/NotificationData.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/NotificationData.java
index 727e245..aacb2dd 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/NotificationData.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/NotificationData.java
@@ -16,10 +16,15 @@
 
 package com.android.systemui.statusbar.notification.collection;
 
+import static com.android.systemui.statusbar.notification.stack.NotificationSectionsManager.BUCKET_ALERTING;
+import static com.android.systemui.statusbar.notification.stack.NotificationSectionsManager.BUCKET_PEOPLE;
+import static com.android.systemui.statusbar.notification.stack.NotificationSectionsManager.BUCKET_SILENT;
+
 import android.app.Notification;
 import android.app.NotificationChannel;
 import android.app.NotificationManager;
 import android.app.Person;
+import android.content.Context;
 import android.service.notification.NotificationListenerService.Ranking;
 import android.service.notification.NotificationListenerService.RankingMap;
 import android.service.notification.SnoozeCriterion;
@@ -30,6 +35,7 @@
 import com.android.systemui.Dependency;
 import com.android.systemui.statusbar.NotificationMediaManager;
 import com.android.systemui.statusbar.notification.NotificationFilter;
+import com.android.systemui.statusbar.notification.NotificationUtils;
 import com.android.systemui.statusbar.phone.NotificationGroupManager;
 import com.android.systemui.statusbar.policy.HeadsUpManager;
 
@@ -44,6 +50,7 @@
  * The list of currently displaying notifications.
  */
 public class NotificationData {
+    private static final String TAG = "NotificationData";
 
     private final NotificationFilter mNotificationFilter = Dependency.get(NotificationFilter.class);
 
@@ -64,6 +71,11 @@
 
     private RankingMap mRankingMap;
     private final Ranking mTmpRanking = new Ranking();
+    private final boolean mUsePeopleFiltering;
+
+    public NotificationData(Context context) {
+        mUsePeopleFiltering = NotificationUtils.usePeopleFiltering(context);
+    }
 
     public void setHeadsUpManager(HeadsUpManager headsUpManager) {
         mHeadsUpManager = headsUpManager;
@@ -72,52 +84,25 @@
     @VisibleForTesting
     protected final Comparator<NotificationEntry> mRankingComparator =
             new Comparator<NotificationEntry>() {
-        private final Ranking mRankingA = new Ranking();
-        private final Ranking mRankingB = new Ranking();
-
         @Override
         public int compare(NotificationEntry a, NotificationEntry b) {
             final StatusBarNotification na = a.notification;
             final StatusBarNotification nb = b.notification;
-            int aImportance = NotificationManager.IMPORTANCE_DEFAULT;
-            int bImportance = NotificationManager.IMPORTANCE_DEFAULT;
-            int aRank = 0;
-            int bRank = 0;
+            int aRank = getRank(a.key);
+            int bRank = getRank(b.key);
 
-            if (mRankingMap != null) {
-                // RankingMap as received from NoMan
-                getRanking(a.key, mRankingA);
-                getRanking(b.key, mRankingB);
-                aImportance = mRankingA.getImportance();
-                bImportance = mRankingB.getImportance();
-                aRank = mRankingA.getRank();
-                bRank = mRankingB.getRank();
-            }
+            boolean aMedia = isImportantMedia(a);
+            boolean bMedia = isImportantMedia(b);
 
-            String mediaNotification = getMediaManager().getMediaNotificationKey();
+            boolean aSystemMax = isSystemMax(a);
+            boolean bSystemMax = isSystemMax(b);
 
-            // IMPORTANCE_MIN media streams are allowed to drift to the bottom
-            final boolean aMedia = a.key.equals(mediaNotification)
-                    && aImportance > NotificationManager.IMPORTANCE_MIN;
-            final boolean bMedia = b.key.equals(mediaNotification)
-                    && bImportance > NotificationManager.IMPORTANCE_MIN;
+            boolean aHeadsUp = a.isRowHeadsUp();
+            boolean bHeadsUp = b.isRowHeadsUp();
 
-            boolean aSystemMax = aImportance >= NotificationManager.IMPORTANCE_HIGH
-                    && isSystemNotification(na);
-            boolean bSystemMax = bImportance >= NotificationManager.IMPORTANCE_HIGH
-                    && isSystemNotification(nb);
-
-
-            boolean aHeadsUp = a.getRow().isHeadsUp();
-            boolean bHeadsUp = b.getRow().isHeadsUp();
-
-            // HACK: This should really go elsewhere, but it's currently not straightforward to
-            // extract the comparison code and we're guaranteed to touch every element, so this is
-            // the best place to set the buckets for the moment.
-            a.setIsTopBucket(aHeadsUp || aMedia || aSystemMax || a.isHighPriority());
-            b.setIsTopBucket(bHeadsUp || bMedia || bSystemMax || b.isHighPriority());
-
-            if (aHeadsUp != bHeadsUp) {
+            if (mUsePeopleFiltering && a.hasAssociatedPeople() != b.hasAssociatedPeople()) {
+                return a.hasAssociatedPeople() ? -1 : 1;
+            } else if (aHeadsUp != bHeadsUp) {
                 return aHeadsUp ? -1 : 1;
             } else if (aHeadsUp) {
                 // Provide consistent ranking with headsUpManager
@@ -317,14 +302,6 @@
         return Ranking.VISIBILITY_NO_OVERRIDE;
     }
 
-    public int getImportance(String key) {
-        if (mRankingMap != null) {
-            getRanking(key, mTmpRanking);
-            return mTmpRanking.getImportance();
-        }
-        return NotificationManager.IMPORTANCE_UNSPECIFIED;
-    }
-
     public List<SnoozeCriterion> getSnoozeCriteria(String key) {
         if (mRankingMap != null) {
             getRanking(key, mTmpRanking);
@@ -349,6 +326,22 @@
         return 0;
     }
 
+    private boolean isImportantMedia(NotificationEntry e) {
+        int importance = e.ranking().getImportance();
+        boolean media = e.key.equals(getMediaManager().getMediaNotificationKey())
+                && importance > NotificationManager.IMPORTANCE_MIN;
+
+        return media;
+    }
+
+    private boolean isSystemMax(NotificationEntry e) {
+        int importance = e.ranking().getImportance();
+        boolean sys = importance  >= NotificationManager.IMPORTANCE_HIGH
+                && isSystemNotification(e.notification);
+
+        return sys;
+    }
+
     public boolean shouldHide(String key) {
         if (mRankingMap != null) {
             getRanking(key, mTmpRanking);
@@ -414,13 +407,37 @@
             }
         }
 
-        if (mSortedAndFiltered.size() == 1) {
-            // HACK: We need the comparator to run on all children in order to set the
-            // isHighPriority field. If there is only one child, then the comparison won't be run,
-            // so we have to trigger it manually. Get rid of this code as soon as possible.
-            mRankingComparator.compare(mSortedAndFiltered.get(0), mSortedAndFiltered.get(0));
+        Collections.sort(mSortedAndFiltered, mRankingComparator);
+
+        int bucket = BUCKET_PEOPLE;
+        for (NotificationEntry e : mSortedAndFiltered) {
+            assignBucketForEntry(e);
+            if (e.getBucket() < bucket) {
+                android.util.Log.wtf(TAG, "Detected non-contiguous bucket!");
+            }
+            bucket = e.getBucket();
+        }
+    }
+
+    private void assignBucketForEntry(NotificationEntry e) {
+        boolean isHeadsUp = e.isRowHeadsUp();
+        boolean isMedia = isImportantMedia(e);
+        boolean isSystemMax = isSystemMax(e);
+
+        setBucket(e, isHeadsUp, isMedia, isSystemMax);
+    }
+
+    private void setBucket(
+            NotificationEntry e,
+            boolean isHeadsUp,
+            boolean isMedia,
+            boolean isSystemMax) {
+        if (mUsePeopleFiltering && e.hasAssociatedPeople()) {
+            e.setBucket(BUCKET_PEOPLE);
+        } else if (isHeadsUp || isMedia || isSystemMax || e.isHighPriority()) {
+            e.setBucket(BUCKET_ALERTING);
         } else {
-            Collections.sort(mSortedAndFiltered, mRankingComparator);
+            e.setBucket(BUCKET_SILENT);
         }
     }
 
@@ -466,6 +483,19 @@
     }
 
     /**
+     * Get the current set of buckets for notification entries, as defined here
+     */
+    public static int[] getNotificationBuckets(Context context) {
+        if (NotificationUtils.usePeopleFiltering(context)) {
+            return new int[]{BUCKET_PEOPLE, BUCKET_ALERTING, BUCKET_SILENT};
+        } else if (NotificationUtils.useNewInterruptionModel(context)) {
+            return new int[]{BUCKET_ALERTING, BUCKET_SILENT};
+        } else {
+            return new int[]{BUCKET_ALERTING};
+        }
+    }
+
+    /**
      * Provides access to keyguard state and user settings dependent data.
      */
     public interface KeyguardEnvironment {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/NotificationEntry.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/NotificationEntry.java
index 71cdcf7..c3211e3 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/NotificationEntry.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/NotificationEntry.java
@@ -21,6 +21,7 @@
 import static android.app.Notification.CATEGORY_EVENT;
 import static android.app.Notification.CATEGORY_MESSAGE;
 import static android.app.Notification.CATEGORY_REMINDER;
+import static android.app.Notification.EXTRA_MESSAGES;
 import static android.app.Notification.FLAG_BUBBLE;
 import static android.app.NotificationManager.Policy.SUPPRESSED_EFFECT_AMBIENT;
 import static android.app.NotificationManager.Policy.SUPPRESSED_EFFECT_BADGE;
@@ -29,6 +30,8 @@
 import static android.app.NotificationManager.Policy.SUPPRESSED_EFFECT_PEEK;
 import static android.app.NotificationManager.Policy.SUPPRESSED_EFFECT_STATUS_BAR;
 
+import static com.android.systemui.statusbar.notification.stack.NotificationSectionsManager.BUCKET_ALERTING;
+
 import android.annotation.NonNull;
 import android.app.Notification;
 import android.app.Notification.MessagingStyle.Message;
@@ -38,6 +41,7 @@
 import android.content.Context;
 import android.graphics.drawable.Icon;
 import android.os.Bundle;
+import android.os.Parcelable;
 import android.os.SystemClock;
 import android.service.notification.NotificationListenerService.Ranking;
 import android.service.notification.SnoozeCriterion;
@@ -58,6 +62,7 @@
 import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow;
 import com.android.systemui.statusbar.notification.row.NotificationContentInflater.InflationFlag;
 import com.android.systemui.statusbar.notification.row.NotificationGuts;
+import com.android.systemui.statusbar.notification.stack.NotificationSectionsManager;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -99,6 +104,7 @@
     public int targetSdk;
     private long lastFullScreenIntentLaunchTime = NOT_LAUNCHED_YET;
     public CharSequence remoteInputText;
+    private final List<Person> mAssociatedPeople = new ArrayList<>();
 
     /**
      * If {@link android.app.RemoteInput#getEditChoicesBeforeSending} is enabled, and the user is
@@ -135,17 +141,22 @@
     private boolean hasSentReply;
 
     /**
+     * Whether this notification has changed in visual appearance since the previous post.
+     * New notifications are interruptive by default.
+     */
+    public boolean isVisuallyInterruptive;
+
+    /**
      * Whether this notification is shown to the user as a high priority notification: visible on
      * the lock screen/status bar and in the top section in the shade.
      */
     private boolean mHighPriority;
 
-    private boolean mIsTopBucket;
-
     private boolean mSensitive = true;
     private Runnable mOnSensitiveChangedListener;
     private boolean mAutoHeadsUp;
     private boolean mPulseSupressed;
+    private int mBucket = BUCKET_ALERTING;
 
     public NotificationEntry(
             @NonNull StatusBarNotification sbn,
@@ -173,11 +184,12 @@
      * TODO: Make this package-private
      */
     public void setNotification(StatusBarNotification sbn) {
-        if (!sbn.getKey().equals(key)) {
+        if (sbn.getKey() != null && key != null && !sbn.getKey().equals(key)) {
             throw new IllegalArgumentException("New key " + sbn.getKey()
                     + " doesn't match existing key " + key);
         }
         notification = sbn;
+        updatePeopleList();
     }
 
     /**
@@ -199,6 +211,7 @@
                     + " doesn't match existing key " + key);
         }
         mRanking = ranking;
+        isVisuallyInterruptive = ranking.visuallyInterruptive();
     }
 
     public NotificationChannel getChannel() {
@@ -238,6 +251,7 @@
         return mRanking.canBubble();
     }
 
+
     public @NonNull List<Notification.Action> getSmartActions() {
         return mRanking.getSmartActions();
     }
@@ -263,22 +277,41 @@
         this.mHighPriority = highPriority;
     }
 
-    /**
-     * @return True if the notif should appear in the "top" or "important" section of notifications
-     * (as opposed to the "bottom" or "silent" section). This is usually the same as
-     * {@link #isHighPriority()}, but there are certain exceptions, such as media notifs.
-     */
-    public boolean isTopBucket() {
-        return mIsTopBucket;
-    }
-    public void setIsTopBucket(boolean isTopBucket) {
-        mIsTopBucket = isTopBucket;
-    }
-
     public boolean isBubble() {
         return (notification.getNotification().flags & FLAG_BUBBLE) != 0;
     }
 
+    private void updatePeopleList() {
+        mAssociatedPeople.clear();
+
+        Bundle extras = notification.getNotification().extras;
+        if (extras == null) {
+            return;
+        }
+
+        List<Person> p = extras.getParcelableArrayList(Notification.EXTRA_PEOPLE_LIST);
+
+        if (p != null) {
+            mAssociatedPeople.addAll(p);
+        }
+
+        if (Notification.MessagingStyle.class.equals(
+                notification.getNotification().getNotificationStyle())) {
+            final Parcelable[] messages = extras.getParcelableArray(EXTRA_MESSAGES);
+            if (!ArrayUtils.isEmpty(messages)) {
+                for (Notification.MessagingStyle.Message message :
+                        Notification.MessagingStyle.Message
+                                .getMessagesFromBundleArray(messages)) {
+                    mAssociatedPeople.add(message.getSenderPerson());
+                }
+            }
+        }
+    }
+
+    boolean hasAssociatedPeople() {
+        return mAssociatedPeople.size() > 0;
+    }
+
     /**
      * Returns the data needed for a bubble for this notification, if it exists.
      */
@@ -295,6 +328,15 @@
         }
     }
 
+    @NotificationSectionsManager.PriorityBucket
+    public int getBucket() {
+        return mBucket;
+    }
+
+    public void setBucket(@NotificationSectionsManager.PriorityBucket int bucket) {
+        mBucket = bucket;
+    }
+
     public ExpandableNotificationRow getRow() {
         return row;
     }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationRoundnessManager.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationRoundnessManager.java
index 4221846..ec0c634 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationRoundnessManager.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationRoundnessManager.java
@@ -16,11 +16,10 @@
 
 package com.android.systemui.statusbar.notification.stack;
 
-import static com.android.systemui.statusbar.notification.stack.NotificationStackScrollLayout.NUM_SECTIONS;
-
-
+import android.content.Context;
 import android.util.MathUtils;
 
+import com.android.systemui.statusbar.notification.collection.NotificationData;
 import com.android.systemui.statusbar.notification.collection.NotificationEntry;
 import com.android.systemui.statusbar.notification.row.ActivatableNotificationView;
 import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow;
@@ -51,11 +50,14 @@
     private float mAppearFraction;
 
     @Inject
-    NotificationRoundnessManager(KeyguardBypassController keyguardBypassController) {
-        mFirstInSectionViews = new ActivatableNotificationView[NUM_SECTIONS];
-        mLastInSectionViews = new ActivatableNotificationView[NUM_SECTIONS];
-        mTmpFirstInSectionViews = new ActivatableNotificationView[NUM_SECTIONS];
-        mTmpLastInSectionViews = new ActivatableNotificationView[NUM_SECTIONS];
+    NotificationRoundnessManager(
+            KeyguardBypassController keyguardBypassController,
+            Context context) {
+        int numberOfSections = NotificationData.getNotificationBuckets(context).length;
+        mFirstInSectionViews = new ActivatableNotificationView[numberOfSections];
+        mLastInSectionViews = new ActivatableNotificationView[numberOfSections];
+        mTmpFirstInSectionViews = new ActivatableNotificationView[numberOfSections];
+        mTmpLastInSectionViews = new ActivatableNotificationView[numberOfSections];
         mBypassController = keyguardBypassController;
     }
 
@@ -157,7 +159,7 @@
 
     public void updateRoundedChildren(NotificationSection[] sections) {
         boolean anyChanged = false;
-        for (int i = 0; i < NUM_SECTIONS; i++) {
+        for (int i = 0; i < sections.length; i++) {
             mTmpFirstInSectionViews[i] = mFirstInSectionViews[i];
             mTmpLastInSectionViews[i] = mLastInSectionViews[i];
             mFirstInSectionViews[i] = sections[i].getFirstVisibleChild();
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationSection.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationSection.java
index f39ed2e..9d456ef 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationSection.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationSection.java
@@ -33,6 +33,7 @@
  * bounds change.
  */
 class NotificationSection {
+    private @NotificationSectionsManager.PriorityBucket int mBucket;
     private View mOwningView;
     private Rect mBounds = new Rect();
     private Rect mCurrentBounds = new Rect(-1, -1, -1, -1);
@@ -43,8 +44,9 @@
     private ActivatableNotificationView mFirstVisibleChild;
     private ActivatableNotificationView mLastVisibleChild;
 
-    NotificationSection(View owningView) {
+    NotificationSection(View owningView, @NotificationSectionsManager.PriorityBucket int bucket) {
         mOwningView = owningView;
+        mBucket = bucket;
     }
 
     public void cancelAnimators() {
@@ -72,6 +74,11 @@
         return mBottomAnimator != null || mTopAnimator != null;
     }
 
+    @NotificationSectionsManager.PriorityBucket
+    public int getBucket() {
+        return mBucket;
+    }
+
     public void startBackgroundAnimation(boolean animateTop, boolean animateBottom) {
         // Left and right bounds are always applied immediately.
         mCurrentBounds.left = mBounds.left;
@@ -199,12 +206,16 @@
         return mLastVisibleChild;
     }
 
-    public void setFirstVisibleChild(ActivatableNotificationView child) {
+    public boolean setFirstVisibleChild(ActivatableNotificationView child) {
+        boolean changed = mFirstVisibleChild != child;
         mFirstVisibleChild = child;
+        return changed;
     }
 
-    public void setLastVisibleChild(ActivatableNotificationView child) {
+    public boolean setLastVisibleChild(ActivatableNotificationView child) {
+        boolean changed = mLastVisibleChild != child;
         mLastVisibleChild = child;
+        return changed;
     }
 
     public void resetCurrentBounds() {
@@ -291,5 +302,4 @@
         mBounds.bottom = bottom;
         return bottom;
     }
-
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManager.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManager.java
index d119fb79..d0444ae 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManager.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManager.java
@@ -18,6 +18,10 @@
 
 import static com.android.systemui.statusbar.notification.stack.NotificationStackScrollLayout.ROWS_GENTLE;
 
+import static java.lang.annotation.RetentionPolicy.SOURCE;
+
+import android.annotation.IntDef;
+import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.content.Intent;
 import android.provider.Settings;
@@ -34,23 +38,31 @@
 import com.android.systemui.statusbar.policy.ConfigurationController;
 import com.android.systemui.statusbar.policy.ConfigurationController.ConfigurationListener;
 
+import java.lang.annotation.Retention;
+import java.util.ArrayList;
+import java.util.List;
+
 /**
  * Manages the boundaries of the two notification sections (high priority and low priority). Also
  * shows/hides the headers for those sections where appropriate.
  *
  * TODO: Move remaining sections logic from NSSL into this class.
  */
-class NotificationSectionsManager implements StackScrollAlgorithm.SectionProvider {
+public class NotificationSectionsManager implements StackScrollAlgorithm.SectionProvider {
+
+    private static final String TAG = "NotifSectionsManager";
+    private static final boolean DEBUG = false;
+
     private final NotificationStackScrollLayout mParent;
     private final ActivityStarter mActivityStarter;
     private final StatusBarStateController mStatusBarStateController;
     private final ConfigurationController mConfigurationController;
-    private final boolean mUseMultipleSections;
+    private final int mNumberOfSections;
 
     private boolean mInitialized = false;
     private SectionHeaderView mGentleHeader;
     private boolean mGentleHeaderVisible = false;
-    @Nullable private ExpandableNotificationRow mFirstGentleNotif;
+
     @Nullable private View.OnClickListener mOnClearGentleNotifsClickListener;
 
     NotificationSectionsManager(
@@ -58,12 +70,21 @@
             ActivityStarter activityStarter,
             StatusBarStateController statusBarStateController,
             ConfigurationController configurationController,
-            boolean useMultipleSections) {
+            int numberOfSections) {
         mParent = parent;
         mActivityStarter = activityStarter;
         mStatusBarStateController = statusBarStateController;
         mConfigurationController = configurationController;
-        mUseMultipleSections = useMultipleSections;
+        mNumberOfSections = numberOfSections;
+    }
+
+    NotificationSection[] createSectionsForBuckets(int[] buckets) {
+        NotificationSection[] sections = new NotificationSection[buckets.length];
+        for (int i = 0; i < buckets.length; i++) {
+            sections[i] = new NotificationSection(mParent, buckets[i] /* bucket */);
+        }
+
+        return sections;
     }
 
     /** Must be called before use. */
@@ -111,8 +132,38 @@
     }
 
     @Override
-    public boolean beginsSection(View view) {
-        return view == getFirstLowPriorityChild();
+    public boolean beginsSection(@NonNull View view, @Nullable View previous) {
+        boolean begin = false;
+        if (view instanceof ExpandableNotificationRow) {
+            if (previous instanceof ExpandableNotificationRow) {
+                // If we're drawing the first non-person notification, break out a section
+                ExpandableNotificationRow curr = (ExpandableNotificationRow) view;
+                ExpandableNotificationRow prev = (ExpandableNotificationRow) previous;
+
+                begin =  curr.getEntry().getBucket() != prev.getEntry().getBucket();
+            }
+        }
+
+        if (!begin) {
+            begin = view == mGentleHeader;
+        }
+
+        return begin;
+    }
+
+    private boolean isUsingMultipleSections() {
+        return mNumberOfSections > 1;
+    }
+
+    private @PriorityBucket int getBucket(ActivatableNotificationView view)
+            throws IllegalArgumentException {
+        if (view instanceof ExpandableNotificationRow) {
+            return ((ExpandableNotificationRow) view).getEntry().getBucket();
+        } else if (view == mGentleHeader) {
+            return BUCKET_SILENT;
+        }
+
+        throw new IllegalArgumentException("I don't know how to find a bucket for this view :(");
     }
 
     /**
@@ -120,11 +171,10 @@
      * bookkeeping and adds/moves/removes section headers if appropriate.
      */
     void updateSectionBoundaries() {
-        if (!mUseMultipleSections) {
+        if (!isUsingMultipleSections()) {
             return;
         }
 
-        mFirstGentleNotif = null;
         int firstGentleNotifIndex = -1;
 
         final int n = mParent.getChildCount();
@@ -133,9 +183,8 @@
             if (child instanceof ExpandableNotificationRow
                     && child.getVisibility() != View.GONE) {
                 ExpandableNotificationRow row = (ExpandableNotificationRow) child;
-                if (!row.getEntry().isTopBucket()) {
+                if (row.getEntry().getBucket() == BUCKET_SILENT) {
                     firstGentleNotifIndex = i;
-                    mFirstGentleNotif = row;
                     break;
                 }
             }
@@ -184,80 +233,75 @@
     }
 
     /**
-     * Updates the boundaries (as tracked by their first and last views) of the high and low
-     * priority sections.
+     * Updates the boundaries (as tracked by their first and last views) of the priority sections.
      *
      * @return {@code true} If the last view in the top section changed (so we need to animate).
      */
-    boolean updateFirstAndLastViewsInSections(
-            final NotificationSection highPrioritySection,
-            final NotificationSection lowPrioritySection,
-            ActivatableNotificationView firstChild,
-            ActivatableNotificationView lastChild) {
-        if (mUseMultipleSections) {
-            ActivatableNotificationView previousLastHighPriorityChild =
-                    highPrioritySection.getLastVisibleChild();
-            ActivatableNotificationView previousFirstLowPriorityChild =
-                    lowPrioritySection.getFirstVisibleChild();
-            ActivatableNotificationView lastHighPriorityChild = getLastHighPriorityChild();
-            ActivatableNotificationView firstLowPriorityChild = getFirstLowPriorityChild();
-            if (lastHighPriorityChild != null && firstLowPriorityChild != null) {
-                highPrioritySection.setFirstVisibleChild(firstChild);
-                highPrioritySection.setLastVisibleChild(lastHighPriorityChild);
-                lowPrioritySection.setFirstVisibleChild(firstLowPriorityChild);
-                lowPrioritySection.setLastVisibleChild(lastChild);
-            } else if (lastHighPriorityChild != null) {
-                highPrioritySection.setFirstVisibleChild(firstChild);
-                highPrioritySection.setLastVisibleChild(lastChild);
-                lowPrioritySection.setFirstVisibleChild(null);
-                lowPrioritySection.setLastVisibleChild(null);
-            } else {
-                highPrioritySection.setFirstVisibleChild(null);
-                highPrioritySection.setLastVisibleChild(null);
-                lowPrioritySection.setFirstVisibleChild(firstChild);
-                lowPrioritySection.setLastVisibleChild(lastChild);
+    boolean updateFirstAndLastViewsForAllSections(
+            NotificationSection[] sections,
+            List<ActivatableNotificationView> children) {
+
+        if (sections.length <= 0 || children.size() <= 0) {
+            for (NotificationSection s : sections) {
+                s.setFirstVisibleChild(null);
+                s.setLastVisibleChild(null);
             }
-            return lastHighPriorityChild != previousLastHighPriorityChild
-                    || firstLowPriorityChild != previousFirstLowPriorityChild;
-        } else {
-            highPrioritySection.setFirstVisibleChild(firstChild);
-            highPrioritySection.setLastVisibleChild(lastChild);
             return false;
         }
+
+        boolean changed = false;
+        ArrayList<ActivatableNotificationView> viewsInBucket = new ArrayList<>();
+        for (NotificationSection s : sections) {
+            int filter = s.getBucket();
+            viewsInBucket.clear();
+
+            //TODO: do this in a single pass, and more better
+            for (ActivatableNotificationView v : children)  {
+                if (getBucket(v) == filter) {
+                    viewsInBucket.add(v);
+                }
+
+                if (viewsInBucket.size() >= 1) {
+                    changed |= s.setFirstVisibleChild(viewsInBucket.get(0));
+                    changed |= s.setLastVisibleChild(viewsInBucket.get(viewsInBucket.size() - 1));
+                } else {
+                    changed |= s.setFirstVisibleChild(null);
+                    changed |= s.setLastVisibleChild(null);
+                }
+            }
+        }
+
+        if (DEBUG) {
+            logSections(sections);
+        }
+
+        return changed;
     }
 
+    private void logSections(NotificationSection[] sections) {
+        for (int i = 0; i < sections.length; i++) {
+            NotificationSection s = sections[i];
+            ActivatableNotificationView first = s.getFirstVisibleChild();
+            String fs = first == null ? "(null)"
+                    :  (first instanceof ExpandableNotificationRow)
+                            ? ((ExpandableNotificationRow) first).getEntry().key
+                            : Integer.toHexString(System.identityHashCode(first));
+            ActivatableNotificationView last = s.getLastVisibleChild();
+            String ls = last == null ? "(null)"
+                    :  (last instanceof ExpandableNotificationRow)
+                            ? ((ExpandableNotificationRow) last).getEntry().key
+                            : Integer.toHexString(System.identityHashCode(last));
+            android.util.Log.d(TAG, "updateSections: f=" + fs + " s=" + i);
+            android.util.Log.d(TAG, "updateSections: l=" + ls + " s=" + i);
+        }
+    }
+
+
     @VisibleForTesting
     SectionHeaderView getGentleHeaderView() {
         return mGentleHeader;
     }
 
-    @Nullable
-    private ActivatableNotificationView getFirstLowPriorityChild() {
-        if (mGentleHeaderVisible) {
-            return mGentleHeader;
-        } else {
-            return mFirstGentleNotif;
-        }
-    }
-
-    @Nullable
-    private ActivatableNotificationView getLastHighPriorityChild() {
-        ActivatableNotificationView lastChildBeforeGap = null;
-        int childCount = mParent.getChildCount();
-        for (int i = 0; i < childCount; i++) {
-            View child = mParent.getChildAt(i);
-            if (child.getVisibility() != View.GONE && child instanceof ExpandableNotificationRow) {
-                ExpandableNotificationRow row = (ExpandableNotificationRow) child;
-                if (!row.getEntry().isTopBucket()) {
-                    break;
-                } else {
-                    lastChildBeforeGap = row;
-                }
-            }
-        }
-        return lastChildBeforeGap;
-    }
-
     private final ConfigurationListener mConfigurationListener = new ConfigurationListener() {
         @Override
         public void onLocaleListChanged() {
@@ -279,4 +323,20 @@
             mOnClearGentleNotifsClickListener.onClick(v);
         }
     }
+
+    /**
+     * For now, declare the available notification buckets (sections) here so that other
+     * presentation code can decide what to do based on an entry's buckets
+     *
+     */
+    @Retention(SOURCE)
+    @IntDef(prefix = { "BUCKET_" }, value = {
+            BUCKET_PEOPLE,
+            BUCKET_ALERTING,
+            BUCKET_SILENT
+    })
+    public @interface PriorityBucket {}
+    public static final int BUCKET_PEOPLE = 0;
+    public static final int BUCKET_ALERTING = 1;
+    public static final int BUCKET_SILENT = 2;
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
index 1c9b225..a67018e 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
@@ -18,6 +18,7 @@
 
 import static com.android.systemui.Dependency.ALLOW_NOTIFICATION_LONG_PRESS_NAME;
 import static com.android.systemui.statusbar.notification.ActivityLaunchAnimator.ExpandAnimationParameters;
+import static com.android.systemui.statusbar.notification.stack.NotificationSectionsManager.BUCKET_SILENT;
 import static com.android.systemui.statusbar.notification.stack.StackScrollAlgorithm.ANCHOR_SCROLLING;
 import static com.android.systemui.statusbar.notification.stack.StackStateAnimator.ANIMATION_DURATION_SWIPE;
 import static com.android.systemui.statusbar.phone.NotificationIconAreaController.HIGH_PRIORITY;
@@ -112,6 +113,7 @@
 import com.android.systemui.statusbar.notification.ShadeViewRefactor;
 import com.android.systemui.statusbar.notification.ShadeViewRefactor.RefactorComponent;
 import com.android.systemui.statusbar.notification.VisualStabilityManager;
+import com.android.systemui.statusbar.notification.collection.NotificationData;
 import com.android.systemui.statusbar.notification.collection.NotificationEntry;
 import com.android.systemui.statusbar.notification.logging.NotificationLogger;
 import com.android.systemui.statusbar.notification.row.ActivatableNotificationView;
@@ -172,7 +174,6 @@
      * Sentinel value for no current active pointer. Used by {@link #mActivePointerId}.
      */
     private static final int INVALID_POINTER = -1;
-    static final int NUM_SECTIONS = 2;
     /**
      * The distance in pixels between sections when the sections are directly adjacent (no visible
      * gap is drawn between them). In this case we don't want to round their corners.
@@ -351,7 +352,7 @@
             return true;
         }
     };
-    private NotificationSection[] mSections = new NotificationSection[NUM_SECTIONS];
+    private NotificationSection[] mSections;
     private boolean mAnimateNextBackgroundTop;
     private boolean mAnimateNextBackgroundBottom;
     private boolean mAnimateNextSectionBoundsChange;
@@ -522,9 +523,6 @@
 
         mAllowLongPress = allowLongPress;
 
-        for (int i = 0; i < NUM_SECTIONS; i++) {
-            mSections[i] = new NotificationSection(this);
-        }
         mRoundnessManager = notificationRoundnessManager;
 
         mHeadsUpManager = headsUpManager;
@@ -533,19 +531,21 @@
         mKeyguardBypassController = keyguardBypassController;
         mFalsingManager = falsingManager;
 
+        int[] buckets = NotificationData.getNotificationBuckets(context);
         mSectionsManager =
                 new NotificationSectionsManager(
                         this,
                         activityStarter,
                         statusBarStateController,
                         configurationController,
-                        NotificationUtils.useNewInterruptionModel(context));
+                        buckets.length);
         mSectionsManager.initialize(LayoutInflater.from(context));
         mSectionsManager.setOnClearGentleNotifsClickListener(v -> {
             // Leave the shade open if there will be other notifs left over to clear
             final boolean closeShade = !hasActiveClearableNotifications(ROWS_HIGH_PRIORITY);
             clearNotifications(ROWS_GENTLE, closeShade);
         });
+        mSections = mSectionsManager.createSectionsForBuckets(buckets);
 
         mAmbientState = new AmbientState(context, mSectionsManager, mHeadsUpManager);
         mBgColor = context.getColor(R.color.notification_shade_background_color);
@@ -773,7 +773,7 @@
     protected void onDraw(Canvas canvas) {
         if (mShouldDrawNotificationBackground
                 && (mSections[0].getCurrentBounds().top
-                < mSections[NUM_SECTIONS - 1].getCurrentBounds().bottom
+                < mSections[mSections.length - 1].getCurrentBounds().bottom
                 || mAmbientState.isDozing())) {
             drawBackground(canvas);
         } else if (mInHeadsUpPinnedMode || mHeadsUpAnimatingAway) {
@@ -819,7 +819,7 @@
         int lockScreenLeft = mSidePaddings;
         int lockScreenRight = getWidth() - mSidePaddings;
         int lockScreenTop = mSections[0].getCurrentBounds().top;
-        int lockScreenBottom = mSections[NUM_SECTIONS - 1].getCurrentBounds().bottom;
+        int lockScreenBottom = mSections[mSections.length - 1].getCurrentBounds().bottom;
         int hiddenLeft = getWidth() / 2;
         int hiddenTop = mTopPadding;
 
@@ -2636,6 +2636,21 @@
         return null;
     }
 
+    //TODO: We shouldn't have to generate this list every time
+    private List<ActivatableNotificationView> getChildrenWithBackground() {
+        ArrayList<ActivatableNotificationView> children = new ArrayList<>();
+        int childCount = getChildCount();
+        for (int i = 0; i < childCount; i++) {
+            View child = getChildAt(i);
+            if (child.getVisibility() != View.GONE && child instanceof ActivatableNotificationView
+                    && child != mShelf) {
+                children.add((ActivatableNotificationView) child);
+            }
+        }
+
+        return children;
+    }
+
     /**
      * Fling the scroll view
      *
@@ -3198,8 +3213,8 @@
 
         ActivatableNotificationView firstChild = getFirstChildWithBackground();
         ActivatableNotificationView lastChild = getLastChildWithBackground();
-        boolean sectionViewsChanged = mSectionsManager.updateFirstAndLastViewsInSections(
-                mSections[0], mSections[1], firstChild, lastChild);
+        boolean sectionViewsChanged = mSectionsManager.updateFirstAndLastViewsForAllSections(
+                mSections, getChildrenWithBackground());
 
         if (mAnimationsEnabled && mIsExpanded) {
             mAnimateNextBackgroundTop = firstChild != previousFirstChild;
@@ -5780,7 +5795,7 @@
             currentIndex++;
             boolean beforeSpeedBump;
             if (mHighPriorityBeforeSpeedBump) {
-                beforeSpeedBump = row.getEntry().isTopBucket();
+                beforeSpeedBump = row.getEntry().getBucket() < BUCKET_SILENT;
             } else {
                 beforeSpeedBump = !row.getEntry().isAmbient();
             }
@@ -5838,9 +5853,9 @@
             case ROWS_ALL:
                 return true;
             case ROWS_HIGH_PRIORITY:
-                return row.getEntry().isTopBucket();
+                return row.getEntry().getBucket() < BUCKET_SILENT;
             case ROWS_GENTLE:
-                return !row.getEntry().isTopBucket();
+                return row.getEntry().getBucket() == BUCKET_SILENT;
             default:
                 throw new IllegalArgumentException("Unknown selection: " + selection);
         }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/StackScrollAlgorithm.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/StackScrollAlgorithm.java
index ef80484..4b61064 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/StackScrollAlgorithm.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/StackScrollAlgorithm.java
@@ -16,6 +16,8 @@
 
 package com.android.systemui.statusbar.notification.stack;
 
+import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.content.Context;
 import android.content.res.Resources;
 import android.util.Log;
@@ -411,8 +413,10 @@
             float currentYPosition,
             boolean reverse) {
         ExpandableView child = algorithmState.visibleChildren.get(i);
+        ExpandableView previousChild = i > 0 ? algorithmState.visibleChildren.get(i - 1) : null;
         final boolean applyGapHeight =
-                childNeedsGapHeight(ambientState.getSectionProvider(), algorithmState, i, child);
+                childNeedsGapHeight(
+                        ambientState.getSectionProvider(), algorithmState, i, child, previousChild);
         ExpandableViewState childViewState = child.getViewState();
         childViewState.location = ExpandableViewState.LOCATION_UNKNOWN;
 
@@ -477,8 +481,11 @@
             SectionProvider sectionProvider,
             StackScrollAlgorithmState algorithmState,
             int visibleIndex,
-            View child) {
-        boolean needsGapHeight = sectionProvider.beginsSection(child) && visibleIndex > 0;
+            View child,
+            View previousChild) {
+
+        boolean needsGapHeight = sectionProvider.beginsSection(child, previousChild)
+                && visibleIndex > 0;
         if (ANCHOR_SCROLLING) {
             needsGapHeight &= visibleIndex != algorithmState.anchorViewIndex;
         }
@@ -749,6 +756,6 @@
          * True if this view starts a new "section" of notifications, such as the gentle
          * notifications section. False if sections are not enabled.
          */
-        boolean beginsSection(View view);
+        boolean beginsSection(@NonNull View view, @Nullable View previous);
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/EdgeBackGestureHandler.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/EdgeBackGestureHandler.java
index 4cd3ad2..575b559 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/EdgeBackGestureHandler.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/EdgeBackGestureHandler.java
@@ -18,6 +18,7 @@
 import static android.view.Display.INVALID_DISPLAY;
 
 import android.content.Context;
+import android.content.pm.ParceledListSlice;
 import android.content.res.Resources;
 import android.graphics.PixelFormat;
 import android.graphics.Point;
@@ -35,6 +36,8 @@
 import android.util.MathUtils;
 import android.util.StatsLog;
 import android.view.Gravity;
+import android.view.IPinnedStackController;
+import android.view.IPinnedStackListener;
 import android.view.ISystemGestureExclusionListener;
 import android.view.InputChannel;
 import android.view.InputDevice;
@@ -54,7 +57,6 @@
 import com.android.systemui.bubbles.BubbleController;
 import com.android.systemui.model.SysUiState;
 import com.android.systemui.recents.OverviewProxyService;
-import com.android.systemui.shared.system.PinnedStackListenerForwarder.PinnedStackListener;
 import com.android.systemui.shared.system.QuickStepContract;
 import com.android.systemui.shared.system.WindowManagerWrapper;
 
@@ -70,13 +72,35 @@
     private static final int MAX_LONG_PRESS_TIMEOUT = SystemProperties.getInt(
             "gestures.back_timeout", 250);
 
-    private final PinnedStackListener mImeChangedListener = new PinnedStackListener() {
+    private final IPinnedStackListener.Stub mImeChangedListener = new IPinnedStackListener.Stub() {
+        @Override
+        public void onListenerRegistered(IPinnedStackController controller) {
+        }
+
         @Override
         public void onImeVisibilityChanged(boolean imeVisible, int imeHeight) {
             // No need to thread jump, assignments are atomic
             mImeHeight = imeVisible ? imeHeight : 0;
             // TODO: Probably cancel any existing gesture
         }
+
+        @Override
+        public void onShelfVisibilityChanged(boolean shelfVisible, int shelfHeight) {
+        }
+
+        @Override
+        public void onMinimizedStateChanged(boolean isMinimized) {
+        }
+
+        @Override
+        public void onMovementBoundsChanged(Rect insetBounds, Rect normalBounds,
+                Rect animatingBounds, boolean fromImeAdjustment, boolean fromShelfAdjustment,
+                int displayRotation) {
+        }
+
+        @Override
+        public void onActionsChanged(ParceledListSlice actions) {
+        }
     };
 
     private ISystemGestureExclusionListener mGestureExclusionListener =
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardLiftController.kt b/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardLiftController.kt
index f7bb97b..00b764b 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardLiftController.kt
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardLiftController.kt
@@ -24,7 +24,7 @@
 import com.android.systemui.Dependency
 import com.android.systemui.plugins.statusbar.StatusBarStateController
 import com.android.systemui.util.Assert
-import com.android.systemui.util.AsyncSensorManager
+import com.android.systemui.util.sensors.AsyncSensorManager
 
 class KeyguardLiftController constructor(
     private val statusBarStateController: StatusBarStateController,
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
index a79ecd9..ea113df 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
@@ -102,6 +102,7 @@
 import com.android.systemui.statusbar.notification.stack.NotificationStackScrollLayout;
 import com.android.systemui.statusbar.notification.stack.StackStateAnimator;
 import com.android.systemui.statusbar.policy.ConfigurationController;
+import com.android.systemui.statusbar.policy.KeyguardMonitor;
 import com.android.systemui.statusbar.policy.KeyguardUserSwitcher;
 import com.android.systemui.statusbar.policy.OnHeadsUpChangedListener;
 import com.android.systemui.statusbar.policy.ZenModeController;
@@ -177,12 +178,22 @@
     @VisibleForTesting
     final KeyguardUpdateMonitorCallback mKeyguardUpdateCallback =
             new KeyguardUpdateMonitorCallback() {
+
+                @Override
+                public void onBiometricAuthenticated(int userId,
+                        BiometricSourceType biometricSourceType) {
+                    if (mFirstBypassAttempt && mUpdateMonitor.isUnlockingWithBiometricAllowed()) {
+                        mDelayShowingKeyguardStatusBar = true;
+                    }
+                }
+
                 @Override
                 public void onBiometricRunningStateChanged(boolean running,
                         BiometricSourceType biometricSourceType) {
                     boolean keyguardOrShadeLocked = mBarState == StatusBarState.KEYGUARD
                             || mBarState == StatusBarState.SHADE_LOCKED;
-                    if (!running && mFirstBypassAttempt && keyguardOrShadeLocked && !mDozing) {
+                    if (!running && mFirstBypassAttempt && keyguardOrShadeLocked && !mDozing
+                            && !mDelayShowingKeyguardStatusBar) {
                         mFirstBypassAttempt = false;
                         animateKeyguardStatusBarIn(StackStateAnimator.ANIMATION_DURATION_STANDARD);
                     }
@@ -191,6 +202,17 @@
                 @Override
                 public void onFinishedGoingToSleep(int why) {
                     mFirstBypassAttempt = mKeyguardBypassController.getBypassEnabled();
+                    mDelayShowingKeyguardStatusBar = false;
+                }
+            };
+    private final KeyguardMonitor.Callback mKeyguardMonitorCallback =
+            new KeyguardMonitor.Callback() {
+                @Override
+                public void onKeyguardFadingAwayChanged() {
+                    if (!mKeyguardMonitor.isKeyguardFadingAway()) {
+                        mFirstBypassAttempt = false;
+                        mDelayShowingKeyguardStatusBar = false;
+                    }
                 }
             };
 
@@ -413,7 +435,17 @@
     private boolean mShowingKeyguardHeadsUp;
     private boolean mAllowExpandForSmallExpansion;
     private Runnable mExpandAfterLayoutRunnable;
+
+    /**
+     * If face auth with bypass is running for the first time after you turn on the screen.
+     * (From aod or screen off)
+     */
     private boolean mFirstBypassAttempt;
+    /**
+     * If auth happens successfully during {@code mFirstBypassAttempt}, and we should wait until
+     * the keyguard is dismissed to show the status bar.
+     */
+    private boolean mDelayShowingKeyguardStatusBar;
 
     private PluginManager mPluginManager;
     private FrameLayout mPluginFrame;
@@ -450,6 +482,7 @@
         mKeyguardBypassController = bypassController;
         mUpdateMonitor = Dependency.get(KeyguardUpdateMonitor.class);
         mFirstBypassAttempt = mKeyguardBypassController.getBypassEnabled();
+        mKeyguardMonitor.addCallback(mKeyguardMonitorCallback);
         dynamicPrivacyController.addListener(this);
 
         mBottomAreaShadeAlphaAnimator = ValueAnimator.ofFloat(1f, 0);
@@ -2391,7 +2424,8 @@
                 * mKeyguardStatusBarAnimateAlpha;
         newAlpha *= 1.0f - mKeyguardHeadsUpShowingAmount;
         mKeyguardStatusBar.setAlpha(newAlpha);
-        boolean hideForBypass = mFirstBypassAttempt && mUpdateMonitor.shouldListenForFace();
+        boolean hideForBypass = mFirstBypassAttempt && mUpdateMonitor.shouldListenForFace()
+                || mDelayShowingKeyguardStatusBar;
         mKeyguardStatusBar.setVisibility(newAlpha != 0f && !mDozing && !hideForBypass
                 ? VISIBLE : INVISIBLE);
     }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
index f853b63..8c95b84 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
@@ -503,8 +503,8 @@
      * device is dozing when the light sensor is on.
      */
     public void setAodFrontScrimAlpha(float alpha) {
-        if (((mState == ScrimState.AOD && mDozeParameters.getAlwaysOn())
-                || mState == ScrimState.PULSING) && mInFrontAlpha != alpha) {
+        if (mState == ScrimState.AOD && mDozeParameters.getAlwaysOn()
+                && mInFrontAlpha != alpha) {
             mInFrontAlpha = alpha;
             updateScrims();
         }
diff --git a/packages/SystemUI/src/com/android/systemui/util/ProximitySensor.java b/packages/SystemUI/src/com/android/systemui/util/ProximitySensor.java
deleted file mode 100644
index a905eba..0000000
--- a/packages/SystemUI/src/com/android/systemui/util/ProximitySensor.java
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.systemui.util;
-
-import android.content.Context;
-import android.hardware.Sensor;
-import android.hardware.SensorEvent;
-import android.hardware.SensorEventListener;
-import android.hardware.SensorManager;
-import android.util.Log;
-
-import com.android.systemui.R;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import javax.inject.Inject;
-
-/**
- * Simple wrapper around SensorManager customized for the Proximity sensor.
- */
-public class ProximitySensor {
-    private static final String TAG = "ProxSensor";
-    private static final boolean DEBUG = false;
-
-    private final Sensor mSensor;
-    private final AsyncSensorManager mSensorManager;
-    private final boolean mUsingBrightnessSensor;
-    private final float mMaxRange;
-
-    private SensorEventListener mSensorEventListener = new SensorEventListener() {
-        @Override
-        public synchronized void onSensorChanged(SensorEvent event) {
-            onSensorEvent(event);
-        }
-
-        @Override
-        public void onAccuracyChanged(Sensor sensor, int accuracy) {
-        }
-    };
-    private boolean mNear;
-    private List<ProximitySensorListener> mListeners = new ArrayList<>();
-    private String mTag = null;
-
-    @Inject
-    public ProximitySensor(Context context, AsyncSensorManager sensorManager) {
-        mSensorManager = sensorManager;
-        Sensor sensor = findBrightnessSensor(context, sensorManager);
-
-        if (sensor == null) {
-            mUsingBrightnessSensor = false;
-            sensor = sensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
-        } else {
-            mUsingBrightnessSensor = true;
-        }
-        mSensor = sensor;
-        if (mSensor != null) {
-            mMaxRange = mSensor.getMaximumRange();
-        } else {
-            mMaxRange = 0;
-        }
-    }
-
-    public void setTag(String tag) {
-        mTag = tag;
-    }
-
-    private Sensor findBrightnessSensor(Context context, SensorManager sensorManager) {
-        String sensorType = context.getString(R.string.doze_brightness_sensor_type);
-        List<Sensor> sensorList = sensorManager.getSensorList(Sensor.TYPE_ALL);
-        Sensor sensor = null;
-        for (Sensor s : sensorList) {
-            if (sensorType.equals(s.getStringType())) {
-                sensor = s;
-                break;
-            }
-        }
-
-        return sensor;
-    }
-
-    /**
-     * Returns {@code false} if a Proximity sensor is not available.
-     */
-    public boolean getSensorAvailable() {
-        return mSensor != null;
-    }
-
-    /**
-     * Add a listener.
-     *
-     * Registers itself with the {@link SensorManager} if this is the first listener
-     * added.
-     */
-    public boolean register(ProximitySensorListener listener) {
-        if (!getSensorAvailable()) {
-            return false;
-        }
-
-        logDebug("using brightness sensor? " + mUsingBrightnessSensor);
-        mListeners.add(listener);
-        if (mListeners.size() == 1) {
-            logDebug("registering sensor listener");
-            mSensorManager.registerListener(
-                    mSensorEventListener, mSensor, SensorManager.SENSOR_DELAY_GAME);
-        }
-
-        return true;
-    }
-
-    /**
-     * Remove a listener.
-     *
-     * If all listeners are removed from an instance of this class,
-     * it will unregister itself with the SensorManager.
-     */
-    public void unregister(ProximitySensorListener listener) {
-        mListeners.remove(listener);
-        if (mListeners.size() == 0) {
-            logDebug("unregistering sensor listener");
-            mSensorManager.unregisterListener(mSensorEventListener);
-        }
-    }
-
-    public boolean isNear() {
-        return getSensorAvailable() && mNear;
-    }
-
-    private void onSensorEvent(SensorEvent event) {
-        boolean near = event.values[0] < mMaxRange;
-        if (mUsingBrightnessSensor) {
-            near = event.values[0] == 0;
-        }
-        mNear = near;
-        mListeners.forEach(proximitySensorListener ->
-                proximitySensorListener.onProximitySensorEvent(
-                        new ProximityEvent(mNear, event.timestamp)));
-    }
-
-    /** Implement to be notified of ProximityEvents. */
-    public interface ProximitySensorListener {
-        /** Called when the ProximitySensor changes. */
-        void onProximitySensorEvent(ProximityEvent proximityEvent);
-    }
-
-    /**
-     * Returned when the near/far state of a {@link ProximitySensor} changes.
-     */
-    public static class ProximityEvent {
-        private final boolean mNear;
-        private final long mTimestampNs;
-
-        public ProximityEvent(boolean near, long timestampNs) {
-            mNear = near;
-            mTimestampNs = timestampNs;
-        }
-
-        public boolean getNear() {
-            return mNear;
-        }
-
-        public long getTimestampNs() {
-            return mTimestampNs;
-        }
-    }
-
-    private void logDebug(String msg) {
-        if (DEBUG) {
-            Log.d(TAG, (mTag != null ? "[" + mTag + "] " : "") + msg);
-        }
-    }
-}
diff --git a/packages/SystemUI/src/com/android/systemui/util/AsyncSensorManager.java b/packages/SystemUI/src/com/android/systemui/util/sensors/AsyncSensorManager.java
similarity index 90%
rename from packages/SystemUI/src/com/android/systemui/util/AsyncSensorManager.java
rename to packages/SystemUI/src/com/android/systemui/util/sensors/AsyncSensorManager.java
index b9c5ee5..dcd0c58 100644
--- a/packages/SystemUI/src/com/android/systemui/util/AsyncSensorManager.java
+++ b/packages/SystemUI/src/com/android/systemui/util/sensors/AsyncSensorManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017 The Android Open Source Project
+ * Copyright (C) 2019 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.android.systemui.util;
+package com.android.systemui.util.sensors;
 
 import android.content.Context;
 import android.hardware.HardwareBuffer;
@@ -56,23 +56,31 @@
 
     private final SensorManager mInner;
     private final List<Sensor> mSensorCache;
-    private final HandlerThread mHandlerThread = new HandlerThread("async_sensor");
-    @VisibleForTesting final Handler mHandler;
+    private final Handler mHandler;
     private final List<SensorManagerPlugin> mPlugins;
 
     @Inject
     public AsyncSensorManager(Context context, PluginManager pluginManager) {
-        this(context.getSystemService(SensorManager.class), pluginManager);
+        this(context.getSystemService(SensorManager.class), pluginManager, null);
     }
 
     @VisibleForTesting
-    AsyncSensorManager(SensorManager sensorManager, PluginManager pluginManager) {
+    public AsyncSensorManager(
+            SensorManager sensorManager, PluginManager pluginManager, Handler handler) {
         mInner = sensorManager;
-        mHandlerThread.start();
-        mHandler = new Handler(mHandlerThread.getLooper());
+        if (handler == null) {
+            HandlerThread handlerThread = new HandlerThread("async_sensor");
+            handlerThread.start();
+            mHandler = new Handler(handlerThread.getLooper());
+        } else {
+            mHandler = handler;
+        }
         mSensorCache = mInner.getSensorList(Sensor.TYPE_ALL);
         mPlugins = new ArrayList<>();
-        pluginManager.addPluginListener(this, SensorManagerPlugin.class, true /* allowMultiple */);
+        if (pluginManager != null) {
+            pluginManager.addPluginListener(this, SensorManagerPlugin.class,
+                    true /* allowMultiple */);
+        }
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/util/sensors/ProximitySensor.java b/packages/SystemUI/src/com/android/systemui/util/sensors/ProximitySensor.java
new file mode 100644
index 0000000..c48bdde
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/util/sensors/ProximitySensor.java
@@ -0,0 +1,306 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.util.sensors;
+
+import android.content.Context;
+import android.hardware.Sensor;
+import android.hardware.SensorEvent;
+import android.hardware.SensorEventListener;
+import android.hardware.SensorManager;
+import android.os.Handler;
+import android.util.Log;
+
+import com.android.systemui.R;
+import com.android.systemui.shared.plugins.PluginManager;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+import java.util.function.Consumer;
+
+import javax.inject.Inject;
+
+/**
+ * Simple wrapper around SensorManager customized for the Proximity sensor.
+ */
+public class ProximitySensor {
+    private static final String TAG = "ProxSensor";
+    private static final boolean DEBUG = false;
+
+    private final Sensor mSensor;
+    private final AsyncSensorManager mSensorManager;
+    private final boolean mUsingBrightnessSensor;
+    private final float mMaxRange;
+    private List<ProximitySensorListener> mListeners = new ArrayList<>();
+    private String mTag = null;
+    private ProximityEvent mLastEvent;
+    private int mSensorDelay = SensorManager.SENSOR_DELAY_NORMAL;
+    private boolean mPaused;
+    private boolean mRegistered;
+
+    private SensorEventListener mSensorEventListener = new SensorEventListener() {
+        @Override
+        public synchronized void onSensorChanged(SensorEvent event) {
+            onSensorEvent(event);
+        }
+
+        @Override
+        public void onAccuracyChanged(Sensor sensor, int accuracy) {
+        }
+    };
+
+    @Inject
+    public ProximitySensor(
+            Context context, AsyncSensorManager sensorManager, PluginManager pluginManager) {
+        mSensorManager = sensorManager;
+        Sensor sensor = findBrightnessSensor(context);
+
+        if (sensor == null) {
+            mUsingBrightnessSensor = false;
+            sensor = sensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
+        } else {
+            mUsingBrightnessSensor = true;
+        }
+        mSensor = sensor;
+        if (mSensor != null) {
+            mMaxRange = mSensor.getMaximumRange();
+        } else {
+            mMaxRange = 0;
+        }
+    }
+
+    public void setTag(String tag) {
+        mTag = tag;
+    }
+
+    public void setSensorDelay(int sensorDelay) {
+        mSensorDelay = sensorDelay;
+    }
+
+    /**
+     * Unregister with the {@link SensorManager} without unsetting listeners on this object.
+     */
+    public void pause() {
+        mPaused = true;
+        unregisterInternal();
+    }
+
+    /**
+     * Register with the {@link SensorManager}. No-op if no listeners are registered on this object.
+     */
+    public void resume() {
+        mPaused = false;
+        registerInternal();
+    }
+
+    private Sensor findBrightnessSensor(Context context) {
+        String sensorType = context.getString(R.string.doze_brightness_sensor_type);
+        List<Sensor> sensorList = mSensorManager.getSensorList(Sensor.TYPE_ALL);
+        Sensor sensor = null;
+        for (Sensor s : sensorList) {
+            if (sensorType.equals(s.getStringType())) {
+                sensor = s;
+                break;
+            }
+        }
+
+        return sensor;
+    }
+
+    /**
+     * Returns true if we are registered with the SensorManager.
+     */
+    public boolean isRegistered() {
+        return mRegistered;
+    }
+
+    /**
+     * Returns {@code false} if a Proximity sensor is not available.
+     */
+    public boolean getSensorAvailable() {
+        return mSensor != null;
+    }
+
+    /**
+     * Add a listener.
+     *
+     * Registers itself with the {@link SensorManager} if this is the first listener
+     * added. If a cool down is currently running, the sensor will be registered when it is over.
+     */
+    public boolean register(ProximitySensorListener listener) {
+        if (!getSensorAvailable()) {
+            return false;
+        }
+
+        logDebug("Using brightness sensor? " + mUsingBrightnessSensor);
+        mListeners.add(listener);
+        registerInternal();
+
+        return true;
+    }
+
+    private void registerInternal() {
+        if (mRegistered || mPaused || mListeners.isEmpty()) {
+            return;
+        }
+        logDebug("Registering sensor listener");
+        mRegistered = true;
+        mSensorManager.registerListener(mSensorEventListener, mSensor, mSensorDelay);
+    }
+
+    /**
+     * Remove a listener.
+     *
+     * If all listeners are removed from an instance of this class,
+     * it will unregister itself with the SensorManager.
+     */
+    public void unregister(ProximitySensorListener listener) {
+        mListeners.remove(listener);
+        if (mListeners.size() == 0) {
+            unregisterInternal();
+        }
+    }
+
+    private void unregisterInternal() {
+        if (!mRegistered) {
+            return;
+        }
+        logDebug("unregistering sensor listener");
+        mSensorManager.unregisterListener(mSensorEventListener);
+        mRegistered = false;
+    }
+
+    public Boolean isNear() {
+        return getSensorAvailable() && mLastEvent != null ? mLastEvent.getNear() : null;
+    }
+
+    /** Update all listeners with the last value this class received from the sensor. */
+    public void alertListeners() {
+        mListeners.forEach(proximitySensorListener ->
+                proximitySensorListener.onSensorEvent(mLastEvent));
+    }
+
+    private void onSensorEvent(SensorEvent event) {
+        boolean near = event.values[0] < mMaxRange;
+        if (mUsingBrightnessSensor) {
+            near = event.values[0] == 0;
+        }
+        mLastEvent = new ProximityEvent(near, event.timestamp);
+        alertListeners();
+    }
+
+    @Override
+    public String toString() {
+        return String.format("{registered=%s, paused=%s, near=%s, sensor=%s}",
+                isRegistered(), mPaused, isNear(), mSensor);
+    }
+
+    /**
+     * Convenience class allowing for briefly checking the proximity sensor.
+     */
+    public static class ProximityCheck implements Runnable {
+
+        private final ProximitySensor mSensor;
+        private final Handler mHandler;
+        private List<Consumer<Boolean>> mCallbacks = new ArrayList<>();
+
+        @Inject
+        public ProximityCheck(ProximitySensor sensor, Handler handler) {
+            mSensor = sensor;
+            mSensor.setTag("prox_check");
+            mHandler = handler;
+            mSensor.pause();
+            ProximitySensorListener listener = proximityEvent -> {
+                mCallbacks.forEach(
+                        booleanConsumer ->
+                                booleanConsumer.accept(
+                                        proximityEvent == null ? null : proximityEvent.getNear()));
+                mCallbacks.clear();
+                mSensor.pause();
+            };
+            mSensor.register(listener);
+        }
+
+        /** Set a descriptive tag for the sensors registration. */
+        public void setTag(String tag) {
+            mSensor.setTag(tag);
+        }
+
+        @Override
+        public void run() {
+            mSensor.pause();
+            mSensor.alertListeners();
+        }
+
+        /**
+         * Query the proximity sensor, timing out if no result.
+         */
+        public void check(long timeoutMs, Consumer<Boolean> callback) {
+            if (!mSensor.getSensorAvailable()) {
+                callback.accept(null);
+            }
+            mCallbacks.add(callback);
+            if (!mSensor.isRegistered()) {
+                mSensor.resume();
+                mHandler.postDelayed(this, timeoutMs);
+            }
+        }
+    }
+
+    /** Implement to be notified of ProximityEvents. */
+    public interface ProximitySensorListener {
+        /** Called when the ProximitySensor changes. */
+        void onSensorEvent(ProximityEvent proximityEvent);
+    }
+
+    /**
+     * Returned when the near/far state of a {@link ProximitySensor} changes.
+     */
+    public static class ProximityEvent {
+        private final boolean mNear;
+        private final long mTimestampNs;
+
+        public ProximityEvent(boolean near, long timestampNs) {
+            mNear = near;
+            mTimestampNs = timestampNs;
+        }
+
+        public boolean getNear() {
+            return mNear;
+        }
+
+        public long getTimestampNs() {
+            return mTimestampNs;
+        }
+
+        public long getTimestampMs() {
+            return mTimestampNs / 1000000;
+        }
+
+        @Override
+        public String toString() {
+            return String.format((Locale) null, "{near=%s, timestamp_ns=%d}", mNear, mTimestampNs);
+        }
+
+    }
+
+    private void logDebug(String msg) {
+        if (DEBUG) {
+            Log.d(TAG, (mTag != null ? "[" + mTag + "] " : "") + msg);
+        }
+    }
+}
diff --git a/packages/SystemUI/tests/src/com/android/systemui/classifier/FalsingManagerProxyTest.java b/packages/SystemUI/tests/src/com/android/systemui/classifier/FalsingManagerProxyTest.java
index b979356..3561e34 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/classifier/FalsingManagerProxyTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/classifier/FalsingManagerProxyTest.java
@@ -34,7 +34,7 @@
 import com.android.systemui.shared.plugins.PluginManager;
 import com.android.systemui.util.DeviceConfigProxy;
 import com.android.systemui.util.DeviceConfigProxyFake;
-import com.android.systemui.util.ProximitySensor;
+import com.android.systemui.util.sensors.ProximitySensor;
 
 import org.junit.After;
 import org.junit.Before;
diff --git a/packages/SystemUI/tests/src/com/android/systemui/classifier/brightline/ProximityClassifierTest.java b/packages/SystemUI/tests/src/com/android/systemui/classifier/brightline/ProximityClassifierTest.java
index 3fc5d72..35d59c1 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/classifier/brightline/ProximityClassifierTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/classifier/brightline/ProximityClassifierTest.java
@@ -30,7 +30,7 @@
 import androidx.test.filters.SmallTest;
 
 import com.android.systemui.util.DeviceConfigProxyFake;
-import com.android.systemui.util.ProximitySensor;
+import com.android.systemui.util.sensors.ProximitySensor;
 
 import org.junit.After;
 import org.junit.Before;
diff --git a/packages/SystemUI/tests/src/com/android/systemui/doze/DozeConfigurationUtil.java b/packages/SystemUI/tests/src/com/android/systemui/doze/DozeConfigurationUtil.java
index 0c124ff..752e145 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/doze/DozeConfigurationUtil.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/doze/DozeConfigurationUtil.java
@@ -24,7 +24,7 @@
 import static org.mockito.Mockito.withSettings;
 
 import com.android.systemui.statusbar.phone.DozeParameters;
-import com.android.systemui.utils.hardware.FakeSensorManager;
+import com.android.systemui.util.sensors.FakeSensorManager;
 
 import org.mockito.Answers;
 import org.mockito.MockSettings;
diff --git a/packages/SystemUI/tests/src/com/android/systemui/doze/DozeScreenBrightnessTest.java b/packages/SystemUI/tests/src/com/android/systemui/doze/DozeScreenBrightnessTest.java
index 392c677..aa62e9a 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/doze/DozeScreenBrightnessTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/doze/DozeScreenBrightnessTest.java
@@ -40,7 +40,7 @@
 import androidx.test.runner.AndroidJUnit4;
 
 import com.android.systemui.SysuiTestCase;
-import com.android.systemui.utils.hardware.FakeSensorManager;
+import com.android.systemui.util.sensors.FakeSensorManager;
 
 import org.junit.Before;
 import org.junit.Test;
diff --git a/packages/SystemUI/tests/src/com/android/systemui/doze/DozeSensorsTest.java b/packages/SystemUI/tests/src/com/android/systemui/doze/DozeSensorsTest.java
index cd6d1e0..ddd1685 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/doze/DozeSensorsTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/doze/DozeSensorsTest.java
@@ -44,7 +44,7 @@
 import com.android.systemui.doze.DozeSensors.TriggerSensor;
 import com.android.systemui.plugins.SensorManagerPlugin;
 import com.android.systemui.statusbar.phone.DozeParameters;
-import com.android.systemui.util.AsyncSensorManager;
+import com.android.systemui.util.sensors.AsyncSensorManager;
 import com.android.systemui.util.wakelock.WakeLock;
 
 import org.junit.Before;
diff --git a/packages/SystemUI/tests/src/com/android/systemui/doze/DozeTriggersTest.java b/packages/SystemUI/tests/src/com/android/systemui/doze/DozeTriggersTest.java
index e190f99..f7cd696 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/doze/DozeTriggersTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/doze/DozeTriggersTest.java
@@ -32,6 +32,7 @@
 import android.os.Handler;
 import android.os.Looper;
 import android.testing.AndroidTestingRunner;
+import android.testing.TestableLooper;
 import android.testing.TestableLooper.RunWithLooper;
 
 import androidx.test.filters.SmallTest;
@@ -39,9 +40,10 @@
 import com.android.systemui.SysuiTestCase;
 import com.android.systemui.dock.DockManager;
 import com.android.systemui.statusbar.phone.DozeParameters;
+import com.android.systemui.util.sensors.AsyncSensorManager;
+import com.android.systemui.util.sensors.FakeSensorManager;
 import com.android.systemui.util.wakelock.WakeLock;
 import com.android.systemui.util.wakelock.WakeLockFake;
-import com.android.systemui.utils.hardware.FakeSensorManager;
 
 import org.junit.Before;
 import org.junit.BeforeClass;
@@ -55,12 +57,8 @@
     private DozeTriggers mTriggers;
     private DozeMachine mMachine;
     private DozeHostFake mHost;
-    private AmbientDisplayConfiguration mConfig;
-    private DozeParameters mParameters;
     private FakeSensorManager mSensors;
     private Sensor mTapSensor;
-    private WakeLock mWakeLock;
-    private AlarmManager mAlarmManager;
     private DockManager mDockManagerFake;
 
     @BeforeClass
@@ -72,18 +70,21 @@
     @Before
     public void setUp() throws Exception {
         mMachine = mock(DozeMachine.class);
-        mAlarmManager = mock(AlarmManager.class);
+        AlarmManager alarmManager = mock(AlarmManager.class);
         mHost = spy(new DozeHostFake());
-        mConfig = DozeConfigurationUtil.createMockConfig();
-        mParameters = DozeConfigurationUtil.createMockParameters();
+        AmbientDisplayConfiguration config = DozeConfigurationUtil.createMockConfig();
+        DozeParameters parameters = DozeConfigurationUtil.createMockParameters();
         mSensors = spy(new FakeSensorManager(mContext));
         mTapSensor = mSensors.getFakeTapSensor().getSensor();
-        mWakeLock = new WakeLockFake();
+        WakeLock wakeLock = new WakeLockFake();
         mDockManagerFake = mock(DockManager.class);
+        AsyncSensorManager asyncSensorManager =
+                new AsyncSensorManager(mSensors, null, new Handler());
 
-        mTriggers = new DozeTriggers(mContext, mMachine, mHost, mAlarmManager, mConfig, mParameters,
-                mSensors, Handler.createAsync(Looper.myLooper()), mWakeLock, true,
+        mTriggers = new DozeTriggers(mContext, mMachine, mHost, alarmManager, config, parameters,
+                asyncSensorManager, Handler.createAsync(Looper.myLooper()), wakeLock, true,
                 mDockManagerFake);
+        waitForSensorManager();
     }
 
     @Test
@@ -95,13 +96,14 @@
         clearInvocations(mMachine);
 
         mHost.callback.onNotificationAlerted(null /* pulseSuppressedListener */);
-        mSensors.getMockProximitySensor().sendProximityResult(false); /* Near */
+        mSensors.getFakeProximitySensor().sendProximityResult(false); /* Near */
 
         verify(mMachine, never()).requestState(any());
         verify(mMachine, never()).requestPulse(anyInt());
 
         mHost.callback.onNotificationAlerted(null /* pulseSuppressedListener */);
-        mSensors.getMockProximitySensor().sendProximityResult(true); /* Far */
+        waitForSensorManager();
+        mSensors.getFakeProximitySensor().sendProximityResult(true); /* Far */
 
         verify(mMachine).requestPulse(anyInt());
     }
@@ -111,6 +113,7 @@
         when(mMachine.getState()).thenReturn(DozeMachine.State.DOZE);
 
         mTriggers.transitionTo(DozeMachine.State.INITIALIZED, DozeMachine.State.DOZE);
+        waitForSensorManager();
         verify(mSensors).requestTriggerSensor(any(), eq(mTapSensor));
 
         clearInvocations(mSensors);
@@ -118,10 +121,12 @@
                 DozeMachine.State.DOZE_REQUEST_PULSE);
         mTriggers.transitionTo(DozeMachine.State.DOZE_REQUEST_PULSE,
                 DozeMachine.State.DOZE_PULSING);
+        waitForSensorManager();
         verify(mSensors).cancelTriggerSensor(any(), eq(mTapSensor));
 
         clearInvocations(mSensors);
         mTriggers.transitionTo(DozeMachine.State.DOZE_PULSING, DozeMachine.State.DOZE_PULSE_DONE);
+        waitForSensorManager();
         verify(mSensors).requestTriggerSensor(any(), eq(mTapSensor));
     }
 
@@ -133,4 +138,8 @@
         mTriggers.transitionTo(DozeMachine.State.DOZE, DozeMachine.State.FINISH);
         verify(mDockManagerFake).removeListener(any());
     }
+
+    private void waitForSensorManager() {
+        TestableLooper.get(this).processAllMessages();
+    }
 }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationLockscreenUserManagerTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationLockscreenUserManagerTest.java
index 57dd8c9..a027643 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationLockscreenUserManagerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationLockscreenUserManagerTest.java
@@ -19,11 +19,12 @@
 import static android.content.Intent.ACTION_USER_SWITCHED;
 import static android.provider.Settings.Secure.NOTIFICATION_NEW_INTERRUPTION_MODEL;
 
+import static com.android.systemui.statusbar.notification.stack.NotificationSectionsManager.BUCKET_SILENT;
+
 import static junit.framework.Assert.assertFalse;
 import static junit.framework.Assert.assertTrue;
 
 import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
@@ -166,7 +167,10 @@
                 Settings.Secure.LOCK_SCREEN_SHOW_SILENT_NOTIFICATIONS, 1);
         when(mNotificationData.isHighPriority(any())).thenReturn(false);
 
-        assertTrue(mLockscreenUserManager.shouldShowOnKeyguard(mock(NotificationEntry.class)));
+        NotificationEntry entry = new NotificationEntryBuilder().build();
+        entry.setBucket(BUCKET_SILENT);
+
+        assertTrue(mLockscreenUserManager.shouldShowOnKeyguard(entry));
     }
 
     @Test
@@ -179,7 +183,9 @@
                 Settings.Secure.LOCK_SCREEN_SHOW_SILENT_NOTIFICATIONS, 0);
         when(mNotificationData.isHighPriority(any())).thenReturn(false);
 
-        assertFalse(mLockscreenUserManager.shouldShowOnKeyguard(mock(NotificationEntry.class)));
+        NotificationEntry entry = new NotificationEntryBuilder().build();
+        entry.setBucket(BUCKET_SILENT);
+        assertFalse(mLockscreenUserManager.shouldShowOnKeyguard(entry));
     }
 
     private class TestNotificationLockscreenUserManager
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/RankingBuilder.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/RankingBuilder.java
index 05f179e..820f465 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/RankingBuilder.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/RankingBuilder.java
@@ -51,6 +51,7 @@
     private ArrayList<Notification.Action> mSmartActions = new ArrayList<>();
     private ArrayList<CharSequence> mSmartReplies = new ArrayList<>();
     private boolean mCanBubble = false;
+    private boolean mIsVisuallyInterruptive = false;
 
     public RankingBuilder() {
     }
@@ -98,7 +99,8 @@
                 mNoisy,
                 mSmartActions,
                 mSmartReplies,
-                mCanBubble);
+                mCanBubble,
+                mIsVisuallyInterruptive);
         return ranking;
     }
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/NotificationEntryManagerTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/NotificationEntryManagerTest.java
index 53d6bff..30e02e6 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/NotificationEntryManagerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/NotificationEntryManagerTest.java
@@ -183,7 +183,7 @@
                     0,
                     NotificationManager.IMPORTANCE_DEFAULT,
                     null, null,
-                    null, null, null, true, sentiment, false, -1, false, null, null, false);
+                    null, null, null, true, sentiment, false, -1, false, null, null, false, false);
             return true;
         }).when(mRankingMap).getRanking(eq(key), any(NotificationListenerService.Ranking.class));
     }
@@ -202,7 +202,7 @@
                     null, null,
                     null, null, null, true,
                     NotificationListenerService.Ranking.USER_SENTIMENT_NEUTRAL, false, -1,
-                    false, smartActions, null, false);
+                    false, smartActions, null, false, false);
             return true;
         }).when(mRankingMap).getRanking(eq(key), any(NotificationListenerService.Ranking.class));
     }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/NotificationListControllerTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/NotificationListControllerTest.java
index a145c12..8d496a7 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/NotificationListControllerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/NotificationListControllerTest.java
@@ -73,7 +73,7 @@
     private DeviceProvisionedListener mProvisionedListener;
 
     // TODO: Remove this once EntryManager no longer needs to be mocked
-    private NotificationData mNotificationData = new NotificationData();
+    private NotificationData mNotificationData = new NotificationData(mContext);
 
     private int mNextNotifId = 0;
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/collection/NotificationDataTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/collection/NotificationDataTest.java
index 9bcbfbc..657ec61d 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/collection/NotificationDataTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/collection/NotificationDataTest.java
@@ -32,6 +32,8 @@
 import static com.android.systemui.statusbar.notification.collection.NotificationDataTest.TestableNotificationData.OVERRIDE_IMPORTANCE;
 import static com.android.systemui.statusbar.notification.collection.NotificationDataTest.TestableNotificationData.OVERRIDE_RANK;
 import static com.android.systemui.statusbar.notification.collection.NotificationDataTest.TestableNotificationData.OVERRIDE_VIS_EFFECTS;
+import static com.android.systemui.statusbar.notification.stack.NotificationSectionsManager.BUCKET_ALERTING;
+import static com.android.systemui.statusbar.notification.stack.NotificationSectionsManager.BUCKET_SILENT;
 
 import static junit.framework.Assert.assertEquals;
 
@@ -48,6 +50,7 @@
 import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.app.Person;
+import android.content.Context;
 import android.content.Intent;
 import android.content.pm.IPackageManager;
 import android.content.pm.PackageManager;
@@ -136,7 +139,7 @@
         mDependency.injectTestDependency(KeyguardEnvironment.class, mEnvironment);
         when(mEnvironment.isDeviceProvisioned()).thenReturn(true);
         when(mEnvironment.isNotificationForCurrentProfiles(any())).thenReturn(true);
-        mNotificationData = new TestableNotificationData();
+        mNotificationData = new TestableNotificationData(mContext);
         mNotificationData.updateRanking(mock(NotificationListenerService.RankingMap.class));
         mRow = new NotificationTestHelper(getContext()).createRow();
         Dependency.get(InitController.class).executePostInitTasks();
@@ -527,8 +530,7 @@
 
     @Test
     public void testSort_samePriorityUsesNMSRank() {
-        // NMS rank says A and then B. But A is not high priority and B is, so B should sort in
-        // front
+        // NMS rank says A and then B, and they are the same priority so use that rank
         Notification aN = new Notification.Builder(mContext, "test")
                 .setStyle(new Notification.MessagingStyle(""))
                 .build();
@@ -571,8 +573,7 @@
     }
 
     @Test
-    public void testSort_properlySetsIsTopBucket() {
-
+    public void testSort_properlySetsAlertingBucket() {
         Notification notification = new Notification.Builder(mContext, "test")
                 .build();
         NotificationEntry entry = new NotificationEntryBuilder()
@@ -591,11 +592,11 @@
         entry.setRow(mRow);
         mNotificationData.add(entry);
 
-        assertTrue(entry.isTopBucket());
+        assertEquals(entry.getBucket(), BUCKET_ALERTING);
     }
 
     @Test
-    public void testSort_properlySetsIsNotTopBucket() {
+    public void testSort_properlySetsSilentBucket() {
         Notification notification = new Notification.Builder(mContext, "test")
                 .build();
 
@@ -613,10 +614,9 @@
         mNotificationData.rankingOverrides.put(entry.key(), override);
 
         entry.setRow(mRow);
-
         mNotificationData.add(entry);
 
-        assertFalse(entry.isTopBucket());
+        assertEquals(entry.getBucket(), BUCKET_SILENT);
     }
 
     private void initStatusBarNotification(boolean allowDuringSetup) {
@@ -631,8 +631,8 @@
     }
 
     public static class TestableNotificationData extends NotificationData {
-        public TestableNotificationData() {
-            super();
+        public TestableNotificationData(Context context) {
+            super(context);
         }
 
         public static final String OVERRIDE_RANK = "r";
@@ -653,6 +653,7 @@
         public static final String OVERRIDE_SMART_ACTIONS = "sa";
         public static final String OVERRIDE_SMART_REPLIES = "sr";
         public static final String OVERRIDE_BUBBLE = "cb";
+        public static final String OVERRIDE_VISUALLY_INTERRUPTIVE = "vi";
 
         public Map<String, Bundle> rankingOverrides = new HashMap<>();
 
@@ -713,7 +714,9 @@
                         overrides.containsKey(OVERRIDE_SMART_REPLIES)
                                 ? overrides.getCharSequenceArrayList(OVERRIDE_SMART_REPLIES)
                                 : currentReplies,
-                        overrides.getBoolean(OVERRIDE_BUBBLE, outRanking.canBubble()));
+                        overrides.getBoolean(OVERRIDE_BUBBLE, outRanking.canBubble()),
+                        overrides.getBoolean(OVERRIDE_VISUALLY_INTERRUPTIVE,
+                                outRanking.visuallyInterruptive()));
             } else {
                 outRanking.populate(
                         new RankingBuilder()
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationRoundnessManagerTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationRoundnessManagerTest.java
index 524ad85..addceb5 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationRoundnessManagerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationRoundnessManagerTest.java
@@ -64,7 +64,7 @@
     @Before
     public void setUp() throws Exception {
         MockitoAnnotations.initMocks(this);
-        mRoundnessManager = new NotificationRoundnessManager(mBypassController);
+        mRoundnessManager = new NotificationRoundnessManager(mBypassController, mContext);
         com.android.systemui.util.Assert.sMainLooper = TestableLooper.get(this).getLooper();
         NotificationTestHelper testHelper = new NotificationTestHelper(getContext());
         mFirst = testHelper.createRow();
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManagerTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManagerTest.java
index 59d0f91..56ed0e3 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManagerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManagerTest.java
@@ -18,6 +18,9 @@
 
 import static android.view.ViewGroup.LayoutParams.WRAP_CONTENT;
 
+import static com.android.systemui.statusbar.notification.stack.NotificationSectionsManager.BUCKET_ALERTING;
+import static com.android.systemui.statusbar.notification.stack.NotificationSectionsManager.BUCKET_SILENT;
+
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.eq;
@@ -74,7 +77,7 @@
                         mActivityStarterDelegate,
                         mStatusBarStateController,
                         mConfigurationController,
-                        true);
+                        2);
         // Required in order for the header inflation to work properly
         when(mNssl.generateLayoutParams(any(AttributeSet.class)))
                 .thenReturn(new ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT));
@@ -263,8 +266,8 @@
                     when(notifRow.getVisibility()).thenReturn(View.VISIBLE);
                     when(notifRow.getEntry().isHighPriority())
                             .thenReturn(children[i] == ChildType.HIPRI);
-                    when(notifRow.getEntry().isTopBucket())
-                            .thenReturn(children[i] == ChildType.HIPRI);
+                    when(notifRow.getEntry().getBucket()).thenReturn(
+                            children[i] == ChildType.HIPRI ? BUCKET_ALERTING : BUCKET_SILENT);
                     when(notifRow.getParent()).thenReturn(mNssl);
                     child = notifRow;
                     break;
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NotificationPanelViewTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NotificationPanelViewTest.java
index 2f24494..219aef1 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NotificationPanelViewTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NotificationPanelViewTest.java
@@ -131,7 +131,7 @@
                         mKeyguardBypassController);
         PulseExpansionHandler expansionHandler = new PulseExpansionHandler(mContext, coordinator,
                 mKeyguardBypassController, mHeadsUpManager,
-                mock(NotificationRoundnessManager.class));
+                mock(NotificationRoundnessManager.class), mStatusBarStateController);
         mNotificationPanelView = new TestableNotificationPanelView(coordinator, expansionHandler,
                 mKeyguardBypassController);
         mNotificationPanelView.setHeadsUpManager(mHeadsUpManager);
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ScrimControllerTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ScrimControllerTest.java
index 5d3cdc8..2623b46 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ScrimControllerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ScrimControllerTest.java
@@ -243,7 +243,7 @@
     }
 
     @Test
-    public void transitionToPulsing_withFrontAlphaUpdates() {
+    public void transitionToPulsing() {
         // Pre-condition
         // Need to go to AoD first because PULSING doesn't change
         // the back scrim opacity - otherwise it would hide AoD wallpapers.
@@ -267,22 +267,11 @@
                 true /* behind */,
                 false /* bubble */);
 
-        // ... and when ambient goes dark, front scrim should be semi-transparent
-        mScrimController.setAodFrontScrimAlpha(0.5f);
-        mScrimController.finishAnimationsImmediately();
-        // Front scrim should be semi-transparent
-        assertScrimAlpha(SEMI_TRANSPARENT /* front */,
-                OPAQUE /* back */,
-                TRANSPARENT /* bubble */);
-
         mScrimController.setWakeLockScreenSensorActive(true);
         mScrimController.finishAnimationsImmediately();
-        assertScrimAlpha(SEMI_TRANSPARENT /* front */,
+        assertScrimAlpha(TRANSPARENT /* front */,
                 SEMI_TRANSPARENT /* back */,
                 TRANSPARENT /* bubble */);
-
-        // Reset value since enums are static.
-        mScrimController.setAodFrontScrimAlpha(0f);
     }
 
     @Test
diff --git a/packages/SystemUI/tests/src/com/android/systemui/util/AsyncSensorManagerTest.java b/packages/SystemUI/tests/src/com/android/systemui/util/sensors/AsyncSensorManagerTest.java
similarity index 71%
rename from packages/SystemUI/tests/src/com/android/systemui/util/AsyncSensorManagerTest.java
rename to packages/SystemUI/tests/src/com/android/systemui/util/sensors/AsyncSensorManagerTest.java
index 4a9b1b3..9149599 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/util/AsyncSensorManagerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/util/sensors/AsyncSensorManagerTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017 The Android Open Source Project
+ * Copyright (C) 2019 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,9 +14,8 @@
  * limitations under the License.
  */
 
-package com.android.systemui.util;
+package com.android.systemui.util.sensors;
 
-import static org.junit.Assert.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.mock;
@@ -24,15 +23,15 @@
 import static org.mockito.Mockito.verifyNoMoreInteractions;
 
 import android.hardware.SensorEventListener;
-import android.hardware.SensorManager;
+import android.os.Handler;
 import android.testing.AndroidTestingRunner;
+import android.testing.TestableLooper;
 
 import androidx.test.filters.SmallTest;
 
 import com.android.systemui.SysuiTestCase;
 import com.android.systemui.plugins.SensorManagerPlugin;
 import com.android.systemui.shared.plugins.PluginManager;
-import com.android.systemui.utils.hardware.FakeSensorManager;
 
 import org.junit.Before;
 import org.junit.Test;
@@ -40,20 +39,21 @@
 
 @SmallTest
 @RunWith(AndroidTestingRunner.class)
+@TestableLooper.RunWithLooper
 public class AsyncSensorManagerTest extends SysuiTestCase {
 
-    private TestableAsyncSensorManager mAsyncSensorManager;
-    private FakeSensorManager mFakeSensorManager;
+    private AsyncSensorManager mAsyncSensorManager;
     private SensorEventListener mListener;
-    private FakeSensorManager.MockProximitySensor mSensor;
+    private FakeSensorManager.FakeProximitySensor mSensor;
     private PluginManager mPluginManager;
 
     @Before
     public void setUp() throws Exception {
         mPluginManager = mock(PluginManager.class);
-        mFakeSensorManager = new FakeSensorManager(mContext);
-        mAsyncSensorManager = new TestableAsyncSensorManager(mFakeSensorManager);
-        mSensor = mFakeSensorManager.getMockProximitySensor();
+        FakeSensorManager fakeSensorManager = new FakeSensorManager(mContext);
+        mAsyncSensorManager = new AsyncSensorManager(
+                fakeSensorManager, mPluginManager, new Handler());
+        mSensor = fakeSensorManager.getFakeProximitySensor();
         mListener = mock(SensorEventListener.class);
     }
 
@@ -61,7 +61,7 @@
     public void registerListenerImpl() throws Exception {
         mAsyncSensorManager.registerListener(mListener, mSensor.getSensor(), 100);
 
-        mAsyncSensorManager.waitUntilRequestsCompleted();
+        waitUntilRequestsCompleted();
 
         // Verify listener was registered.
         mSensor.sendProximityResult(true);
@@ -73,7 +73,7 @@
         mAsyncSensorManager.registerListener(mListener, mSensor.getSensor(), 100);
         mAsyncSensorManager.unregisterListener(mListener);
 
-        mAsyncSensorManager.waitUntilRequestsCompleted();
+        waitUntilRequestsCompleted();
 
         // Verify listener was unregistered.
         mSensor.sendProximityResult(true);
@@ -85,7 +85,7 @@
         mAsyncSensorManager.registerListener(mListener, mSensor.getSensor(), 100);
         mAsyncSensorManager.unregisterListener(mListener, mSensor.getSensor());
 
-        mAsyncSensorManager.waitUntilRequestsCompleted();
+        waitUntilRequestsCompleted();
 
         // Verify listener was unregistered.
         mSensor.sendProximityResult(true);
@@ -98,13 +98,7 @@
                 eq(SensorManagerPlugin.class), eq(true) /* allowMultiple */);
     }
 
-    private class TestableAsyncSensorManager extends AsyncSensorManager {
-        public TestableAsyncSensorManager(SensorManager sensorManager) {
-            super(sensorManager, mPluginManager);
-        }
-
-        public void waitUntilRequestsCompleted() {
-            assertTrue(mHandler.runWithScissors(() -> {}, 0));
-        }
+    public void waitUntilRequestsCompleted() {
+        TestableLooper.get(this).processAllMessages();
     }
-}
\ No newline at end of file
+}
diff --git a/packages/SystemUI/tests/src/com/android/systemui/utils/hardware/FakeSensorManager.java b/packages/SystemUI/tests/src/com/android/systemui/util/sensors/FakeSensorManager.java
similarity index 95%
rename from packages/SystemUI/tests/src/com/android/systemui/utils/hardware/FakeSensorManager.java
rename to packages/SystemUI/tests/src/com/android/systemui/util/sensors/FakeSensorManager.java
index 29b8ab60..1deb495 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/utils/hardware/FakeSensorManager.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/util/sensors/FakeSensorManager.java
@@ -11,10 +11,10 @@
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
- * limitations under the License
+ * limitations under the License.
  */
 
-package com.android.systemui.utils.hardware;
+package com.android.systemui.util.sensors;
 
 import android.content.Context;
 import android.hardware.HardwareBuffer;
@@ -54,7 +54,7 @@
 
     public static final String TAP_SENSOR_TYPE = "tapSensorType";
 
-    private final MockProximitySensor mMockProximitySensor;
+    private final FakeProximitySensor mFakeProximitySensor;
     private final FakeGenericSensor mFakeLightSensor;
     private final FakeGenericSensor mFakeTapSensor;
     private final FakeGenericSensor[] mSensors;
@@ -68,14 +68,14 @@
         }
 
         mSensors = new FakeGenericSensor[]{
-                mMockProximitySensor = new MockProximitySensor(proxSensor),
+                mFakeProximitySensor = new FakeProximitySensor(proxSensor),
                 mFakeLightSensor = new FakeGenericSensor(createSensor(Sensor.TYPE_LIGHT, null)),
                 mFakeTapSensor = new FakeGenericSensor(createSensor(99, TAP_SENSOR_TYPE))
         };
     }
 
-    public MockProximitySensor getMockProximitySensor() {
-        return mMockProximitySensor;
+    public FakeProximitySensor getFakeProximitySensor() {
+        return mFakeProximitySensor;
     }
 
     public FakeGenericSensor getFakeLightSensor() {
@@ -231,9 +231,9 @@
         setter.invoke(sensor, type);
     }
 
-    public class MockProximitySensor extends FakeGenericSensor {
+    public class FakeProximitySensor extends FakeGenericSensor {
 
-        private MockProximitySensor(Sensor sensor) {
+        private FakeProximitySensor(Sensor sensor) {
             super(sensor);
         }
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/util/sensors/ProximitySensorTest.java b/packages/SystemUI/tests/src/com/android/systemui/util/sensors/ProximitySensorTest.java
new file mode 100644
index 0000000..6d13408
--- /dev/null
+++ b/packages/SystemUI/tests/src/com/android/systemui/util/sensors/ProximitySensorTest.java
@@ -0,0 +1,218 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.util.sensors;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+import android.os.Handler;
+import android.testing.AndroidTestingRunner;
+import android.testing.TestableLooper;
+
+import androidx.test.filters.SmallTest;
+
+import com.android.systemui.SysuiTestCase;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@SmallTest
+@RunWith(AndroidTestingRunner.class)
+@TestableLooper.RunWithLooper
+public class ProximitySensorTest extends SysuiTestCase {
+
+    private ProximitySensor mProximitySensor;
+    private FakeSensorManager.FakeProximitySensor mFakeProximitySensor;
+
+    @Before
+    public void setUp() throws Exception {
+        FakeSensorManager sensorManager = new FakeSensorManager(getContext());
+        AsyncSensorManager asyncSensorManager = new AsyncSensorManager(
+                sensorManager, null, new Handler());
+        mFakeProximitySensor = sensorManager.getFakeProximitySensor();
+        mProximitySensor = new ProximitySensor(getContext(), asyncSensorManager, null);
+    }
+
+    @Test
+    public void testSingleListener() {
+        TestableListener listener = new TestableListener();
+
+        assertFalse(mProximitySensor.isRegistered());
+        mProximitySensor.register(listener);
+        waitForSensorManager();
+        assertTrue(mProximitySensor.isRegistered());
+        assertNull(listener.mLastEvent);
+
+        mFakeProximitySensor.sendProximityResult(true);
+        assertFalse(listener.mLastEvent.getNear());
+        assertEquals(listener.mCallCount, 1);
+        mFakeProximitySensor.sendProximityResult(false);
+        assertTrue(listener.mLastEvent.getNear());
+        assertEquals(listener.mCallCount, 2);
+
+        mProximitySensor.unregister(listener);
+        waitForSensorManager();
+    }
+
+    @Test
+    public void testMultiListener() {
+        TestableListener listenerA = new TestableListener();
+        TestableListener listenerB = new TestableListener();
+
+        assertFalse(mProximitySensor.isRegistered());
+
+        mProximitySensor.register(listenerA);
+        waitForSensorManager();
+        assertTrue(mProximitySensor.isRegistered());
+        mProximitySensor.register(listenerB);
+        waitForSensorManager();
+        assertTrue(mProximitySensor.isRegistered());
+        assertNull(listenerA.mLastEvent);
+        assertNull(listenerB.mLastEvent);
+
+        mFakeProximitySensor.sendProximityResult(true);
+        assertFalse(listenerA.mLastEvent.getNear());
+        assertFalse(listenerB.mLastEvent.getNear());
+        assertEquals(listenerA.mCallCount, 1);
+        assertEquals(listenerB.mCallCount, 1);
+        mFakeProximitySensor.sendProximityResult(false);
+        assertTrue(listenerA.mLastEvent.getNear());
+        assertTrue(listenerB.mLastEvent.getNear());
+        assertEquals(listenerA.mCallCount, 2);
+        assertEquals(listenerB.mCallCount, 2);
+
+        mProximitySensor.unregister(listenerA);
+        mProximitySensor.unregister(listenerB);
+        waitForSensorManager();
+    }
+
+    @Test
+    public void testUnregister() {
+        TestableListener listener = new TestableListener();
+
+        assertFalse(mProximitySensor.isRegistered());
+        mProximitySensor.register(listener);
+        waitForSensorManager();
+        assertTrue(mProximitySensor.isRegistered());
+        assertNull(listener.mLastEvent);
+
+        mFakeProximitySensor.sendProximityResult(true);
+        assertFalse(listener.mLastEvent.getNear());
+        assertEquals(listener.mCallCount, 1);
+
+        mProximitySensor.unregister(listener);
+        waitForSensorManager();
+        assertFalse(mProximitySensor.isRegistered());
+    }
+
+    @Test
+    public void testPauseAndResume() {
+        TestableListener listener = new TestableListener();
+
+        assertFalse(mProximitySensor.isRegistered());
+        mProximitySensor.register(listener);
+        waitForSensorManager();
+        assertTrue(mProximitySensor.isRegistered());
+        assertNull(listener.mLastEvent);
+
+        mFakeProximitySensor.sendProximityResult(true);
+        assertFalse(listener.mLastEvent.getNear());
+        assertEquals(listener.mCallCount, 1);
+
+        mProximitySensor.pause();
+        waitForSensorManager();
+        assertFalse(mProximitySensor.isRegistered());
+
+        // More events do nothing when paused.
+        mFakeProximitySensor.sendProximityResult(true);
+        assertFalse(listener.mLastEvent.getNear());
+        assertEquals(listener.mCallCount, 1);
+        mFakeProximitySensor.sendProximityResult(false);
+        assertFalse(listener.mLastEvent.getNear());
+        assertEquals(listener.mCallCount, 1);
+
+        mProximitySensor.resume();
+        waitForSensorManager();
+        assertTrue(mProximitySensor.isRegistered());
+        // Still matches our previous call
+        assertFalse(listener.mLastEvent.getNear());
+        assertEquals(listener.mCallCount, 1);
+
+        mFakeProximitySensor.sendProximityResult(true);
+        assertFalse(listener.mLastEvent.getNear());
+        assertEquals(listener.mCallCount, 2);
+
+        mProximitySensor.unregister(listener);
+        waitForSensorManager();
+        assertFalse(mProximitySensor.isRegistered());
+    }
+
+    @Test
+    public void testAlertListeners() {
+        TestableListener listenerA = new TestableListener();
+        TestableListener listenerB = new TestableListener();
+
+        assertFalse(mProximitySensor.isRegistered());
+
+        mProximitySensor.register(listenerA);
+        mProximitySensor.register(listenerB);
+        waitForSensorManager();
+        assertTrue(mProximitySensor.isRegistered());
+        assertNull(listenerA.mLastEvent);
+        assertNull(listenerB.mLastEvent);
+
+        mProximitySensor.alertListeners();
+        assertNull(listenerA.mLastEvent);
+        assertEquals(listenerA.mCallCount, 1);
+        assertNull(listenerB.mLastEvent);
+        assertEquals(listenerB.mCallCount, 1);
+
+        mFakeProximitySensor.sendProximityResult(false);
+        assertTrue(listenerA.mLastEvent.getNear());
+        assertEquals(listenerA.mCallCount, 2);
+        assertTrue(listenerB.mLastEvent.getNear());
+        assertEquals(listenerB.mCallCount, 2);
+
+        mProximitySensor.unregister(listenerA);
+        mProximitySensor.unregister(listenerB);
+        waitForSensorManager();
+    }
+
+    class TestableListener implements ProximitySensor.ProximitySensorListener {
+        ProximitySensor.ProximityEvent mLastEvent;
+        int mCallCount = 0;
+
+        @Override
+        public void onSensorEvent(ProximitySensor.ProximityEvent proximityEvent) {
+            mLastEvent = proximityEvent;
+            mCallCount++;
+        }
+
+        void reset() {
+            mLastEvent = null;
+            mCallCount = 0;
+        }
+    };
+
+    private void waitForSensorManager() {
+        TestableLooper.get(this).processAllMessages();
+    }
+
+}
diff --git a/proto/src/wifi.proto b/proto/src/wifi.proto
index 8ad2489..353a187 100644
--- a/proto/src/wifi.proto
+++ b/proto/src/wifi.proto
@@ -1792,6 +1792,25 @@
 
   // Indicates if we are logging LinkSpeedCount in metrics
   optional bool link_speed_counts_logging_enabled = 4;
+
+  // Duration for evaluating Wifi condition to trigger a data stall
+  // measured in milliseconds
+  optional int32 data_stall_duration_ms = 5;
+
+  // Threshold of Tx throughput below which to trigger a data stall
+  // measured in Mbps
+  optional int32 data_stall_tx_tput_thr_mbps = 6;
+
+  // Threshold of Rx throughput below which to trigger a data stall
+  // measured in Mbps
+  optional int32 data_stall_rx_tput_thr_mbps = 7;
+
+  // Threshold of Tx packet error rate above which to trigger a data stall
+  // in percentage
+  optional int32 data_stall_tx_per_thr = 8;
+
+  // Threshold of CCA level above which to trigger a data stall in percentage
+  optional int32 data_stall_cca_level_thr = 9;
 }
 
 message WifiIsUnusableEvent {
diff --git a/services/accessibility/java/com/android/server/accessibility/AbstractAccessibilityServiceConnection.java b/services/accessibility/java/com/android/server/accessibility/AbstractAccessibilityServiceConnection.java
index cdb062d..4f021ad 100644
--- a/services/accessibility/java/com/android/server/accessibility/AbstractAccessibilityServiceConnection.java
+++ b/services/accessibility/java/com/android/server/accessibility/AbstractAccessibilityServiceConnection.java
@@ -23,7 +23,7 @@
 import static android.view.accessibility.AccessibilityNodeInfo.ACTION_CLICK;
 import static android.view.accessibility.AccessibilityNodeInfo.ACTION_LONG_CLICK;
 
-import android.accessibilityservice.AccessibilityGestureInfo;
+import android.accessibilityservice.AccessibilityGestureEvent;
 import android.accessibilityservice.AccessibilityServiceInfo;
 import android.accessibilityservice.IAccessibilityServiceClient;
 import android.accessibilityservice.IAccessibilityServiceConnection;
@@ -1173,9 +1173,9 @@
         }
     }
 
-    public void notifyGesture(AccessibilityGestureInfo gestureInfo) {
+    public void notifyGesture(AccessibilityGestureEvent gestureEvent) {
         mInvocationHandler.obtainMessage(InvocationHandler.MSG_ON_GESTURE,
-                gestureInfo).sendToTarget();
+                gestureEvent).sendToTarget();
     }
 
     public void notifyClearAccessibilityNodeInfoCache() {
@@ -1264,7 +1264,7 @@
         }
     }
 
-    private void notifyGestureInternal(AccessibilityGestureInfo gestureInfo) {
+    private void notifyGestureInternal(AccessibilityGestureEvent gestureInfo) {
         final IAccessibilityServiceClient listener = getServiceInterfaceSafely();
         if (listener != null) {
             try {
@@ -1469,7 +1469,7 @@
             final int type = message.what;
             switch (type) {
                 case MSG_ON_GESTURE: {
-                    notifyGestureInternal((AccessibilityGestureInfo) message.obj);
+                    notifyGestureInternal((AccessibilityGestureEvent) message.obj);
                 } break;
 
                 case MSG_CLEAR_ACCESSIBILITY_CACHE: {
diff --git a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
index feb7329..ba4d89c 100644
--- a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
+++ b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
@@ -27,7 +27,7 @@
 import static com.android.internal.util.function.pooled.PooledLambda.obtainMessage;
 
 import android.Manifest;
-import android.accessibilityservice.AccessibilityGestureInfo;
+import android.accessibilityservice.AccessibilityGestureEvent;
 import android.accessibilityservice.AccessibilityService;
 import android.accessibilityservice.AccessibilityServiceInfo;
 import android.accessibilityservice.IAccessibilityServiceClient;
@@ -828,12 +828,17 @@
         }
     }
 
-
-    public boolean onGesture(AccessibilityGestureInfo gestureInfo) {
+    /**
+     * Called when a gesture is detected on a display.
+     *
+     * @param gestureEvent the detail of the gesture.
+     * @return true if the event is handled.
+     */
+    public boolean onGesture(AccessibilityGestureEvent gestureEvent) {
         synchronized (mLock) {
-            boolean handled = notifyGestureLocked(gestureInfo, false);
+            boolean handled = notifyGestureLocked(gestureEvent, false);
             if (!handled) {
-                handled = notifyGestureLocked(gestureInfo, true);
+                handled = notifyGestureLocked(gestureEvent, true);
             }
             return handled;
         }
@@ -1028,7 +1033,7 @@
         }
     }
 
-    private boolean notifyGestureLocked(AccessibilityGestureInfo gestureInfo, boolean isDefault) {
+    private boolean notifyGestureLocked(AccessibilityGestureEvent gestureEvent, boolean isDefault) {
         // TODO: Now we are giving the gestures to the last enabled
         //       service that can handle them which is the last one
         //       in our list since we write the last enabled as the
@@ -1042,7 +1047,7 @@
         for (int i = state.mBoundServices.size() - 1; i >= 0; i--) {
             AccessibilityServiceConnection service = state.mBoundServices.get(i);
             if (service.mRequestTouchExplorationMode && service.mIsDefault == isDefault) {
-                service.notifyGesture(gestureInfo);
+                service.notifyGesture(gestureEvent);
                 return true;
             }
         }
diff --git a/services/accessibility/java/com/android/server/accessibility/gestures/AccessibilityGestureDetector.java b/services/accessibility/java/com/android/server/accessibility/gestures/AccessibilityGestureDetector.java
index 9101a01..7e8fb29 100644
--- a/services/accessibility/java/com/android/server/accessibility/gestures/AccessibilityGestureDetector.java
+++ b/services/accessibility/java/com/android/server/accessibility/gestures/AccessibilityGestureDetector.java
@@ -16,7 +16,7 @@
 
 package com.android.server.accessibility.gestures;
 
-import android.accessibilityservice.AccessibilityGestureInfo;
+import android.accessibilityservice.AccessibilityGestureEvent;
 import android.accessibilityservice.AccessibilityService;
 import android.content.Context;
 import android.gesture.GesturePoint;
@@ -119,11 +119,11 @@
         /**
          * Called when an event stream is recognized as a gesture.
          *
-         * @param gestureInfo Information about the gesture.
+         * @param gestureEvent Information about the gesture.
          *
          * @return true if the event is consumed, else false
          */
-        boolean onGestureCompleted(AccessibilityGestureInfo gestureInfo);
+        boolean onGestureCompleted(AccessibilityGestureEvent gestureEvent);
 
         /**
          * Called when the system has decided an event stream doesn't match any
@@ -567,19 +567,19 @@
             switch (direction) {
                 case LEFT:
                     return mListener.onGestureCompleted(
-                            new AccessibilityGestureInfo(AccessibilityService.GESTURE_SWIPE_LEFT,
+                            new AccessibilityGestureEvent(AccessibilityService.GESTURE_SWIPE_LEFT,
                                     displayId));
                 case RIGHT:
                     return mListener.onGestureCompleted(
-                            new AccessibilityGestureInfo(AccessibilityService.GESTURE_SWIPE_RIGHT,
+                            new AccessibilityGestureEvent(AccessibilityService.GESTURE_SWIPE_RIGHT,
                                     displayId));
                 case UP:
                     return mListener.onGestureCompleted(
-                            new AccessibilityGestureInfo(AccessibilityService.GESTURE_SWIPE_UP,
+                            new AccessibilityGestureEvent(AccessibilityService.GESTURE_SWIPE_UP,
                                     displayId));
                 case DOWN:
                     return mListener.onGestureCompleted(
-                            new AccessibilityGestureInfo(AccessibilityService.GESTURE_SWIPE_DOWN,
+                            new AccessibilityGestureEvent(AccessibilityService.GESTURE_SWIPE_DOWN,
                                     displayId));
                 default:
                     // Do nothing.
@@ -600,7 +600,7 @@
             int segmentDirection1 = toDirection(dX1, dY1);
             int gestureId = DIRECTIONS_TO_GESTURE_ID[segmentDirection0][segmentDirection1];
             return mListener.onGestureCompleted(
-                    new AccessibilityGestureInfo(gestureId, displayId));
+                    new AccessibilityGestureEvent(gestureId, displayId));
         }
         // else if (path.size() < 2 || 3 < path.size()) then no gesture recognized.
         return mListener.onGestureCancelled(event, policyFlags);
diff --git a/services/accessibility/java/com/android/server/accessibility/gestures/TouchExplorer.java b/services/accessibility/java/com/android/server/accessibility/gestures/TouchExplorer.java
index a338b90..7044c4d 100644
--- a/services/accessibility/java/com/android/server/accessibility/gestures/TouchExplorer.java
+++ b/services/accessibility/java/com/android/server/accessibility/gestures/TouchExplorer.java
@@ -20,7 +20,7 @@
 
 import static com.android.server.accessibility.gestures.TouchState.ALL_POINTER_ID_BITS;
 
-import android.accessibilityservice.AccessibilityGestureInfo;
+import android.accessibilityservice.AccessibilityGestureEvent;
 import android.content.Context;
 import android.graphics.Point;
 import android.os.Handler;
@@ -343,14 +343,14 @@
     }
 
     @Override
-    public boolean onGestureCompleted(AccessibilityGestureInfo gestureInfo) {
+    public boolean onGestureCompleted(AccessibilityGestureEvent gestureEvent) {
         if (!mState.isGestureDetecting()) {
             return false;
         }
 
         endGestureDetection(true);
 
-        mAms.onGesture(gestureInfo);
+        mAms.onGesture(gestureEvent);
 
         return true;
     }
diff --git a/services/core/java/com/android/server/MountServiceIdler.java b/services/core/java/com/android/server/MountServiceIdler.java
index 79b1226..6bc1a57 100644
--- a/services/core/java/com/android/server/MountServiceIdler.java
+++ b/services/core/java/com/android/server/MountServiceIdler.java
@@ -99,32 +99,28 @@
     public static void scheduleIdlePass(Context context) {
         JobScheduler tm = (JobScheduler) context.getSystemService(Context.JOB_SCHEDULER_SERVICE);
 
-        final long today3AM = MidnightInTime(0, 0).getTimeInMillis();
-        final long today4AM = MidnightInTime(0, 1).getTimeInMillis();
+        final long today3AM = offsetFromTodayMidnight(0, 3).getTimeInMillis();
+        final long today4AM = offsetFromTodayMidnight(0, 4).getTimeInMillis();
+        final long tomorrow3AM = offsetFromTodayMidnight(1, 3).getTimeInMillis();
 
-        long nextScheduleTime, maxScheduleTime;
+        long nextScheduleTime;
         if (System.currentTimeMillis() > today3AM && System.currentTimeMillis() < today4AM) {
             nextScheduleTime = TimeUnit.SECONDS.toMillis(10);
-            maxScheduleTime = today4AM - System.currentTimeMillis();
         } else {
-            final long tomorrow3AM = MidnightInTime(1, 0).getTimeInMillis();
-            final long twodays3AM = MidnightInTime(2, 0).getTimeInMillis();
             nextScheduleTime = tomorrow3AM - System.currentTimeMillis(); // 3AM tomorrow
-            maxScheduleTime = twodays3AM - System.currentTimeMillis();   // 3AM in two days
         }
 
         JobInfo.Builder builder = new JobInfo.Builder(MOUNT_JOB_ID, sIdleService);
         builder.setRequiresDeviceIdle(true);
-        builder.setRequiresCharging(true);
+        builder.setRequiresBatteryNotLow(true);
         builder.setMinimumLatency(nextScheduleTime);
-        builder.setOverrideDeadline(maxScheduleTime);
         tm.schedule(builder.build());
     }
 
-    private static Calendar MidnightInTime(int nDays, int nHours) {
+    private static Calendar offsetFromTodayMidnight(int nDays, int nHours) {
         Calendar calendar = Calendar.getInstance();
         calendar.setTimeInMillis(System.currentTimeMillis());
-        calendar.set(Calendar.HOUR_OF_DAY, 3 + nHours);
+        calendar.set(Calendar.HOUR_OF_DAY, nHours);
         calendar.set(Calendar.MINUTE, 0);
         calendar.set(Calendar.SECOND, 0);
         calendar.set(Calendar.MILLISECOND, 0);
diff --git a/services/core/java/com/android/server/PackageWatchdog.java b/services/core/java/com/android/server/PackageWatchdog.java
index 4403efc..bc50956 100644
--- a/services/core/java/com/android/server/PackageWatchdog.java
+++ b/services/core/java/com/android/server/PackageWatchdog.java
@@ -87,6 +87,8 @@
     // Number of package failures within the duration above before we notify observers
     @VisibleForTesting
     static final int DEFAULT_TRIGGER_FAILURE_COUNT = 5;
+    @VisibleForTesting
+    static final long DEFAULT_OBSERVING_DURATION_MS = TimeUnit.DAYS.toMillis(2);
     // Whether explicit health checks are enabled or not
     private static final boolean DEFAULT_EXPLICIT_HEALTH_CHECK_ENABLED = true;
 
@@ -225,8 +227,10 @@
      * check state will be reset to a default depending on if the package is contained in
      * {@link mPackagesWithExplicitHealthCheckEnabled}.
      *
-     * @throws IllegalArgumentException if {@code packageNames} is empty
-     * or {@code durationMs} is less than 1
+     * <p>If {@code packageNames} is empty, this will be a no-op.
+     *
+     * <p>If {@code durationMs} is less than 1, a default monitoring duration
+     * {@link #DEFAULT_OBSERVING_DURATION_MS} will be used.
      */
     public void startObservingHealth(PackageHealthObserver observer, List<String> packageNames,
             long durationMs) {
@@ -235,9 +239,9 @@
             return;
         }
         if (durationMs < 1) {
-            // TODO: Instead of failing, monitor for default? 48hrs?
-            throw new IllegalArgumentException("Invalid duration " + durationMs + "ms for observer "
+            Slog.wtf(TAG, "Invalid duration " + durationMs + "ms for observer "
                     + observer.getName() + ". Not observing packages " + packageNames);
+            durationMs = DEFAULT_OBSERVING_DURATION_MS;
         }
 
         List<MonitoredPackage> packages = new ArrayList<>();
@@ -808,7 +812,6 @@
      */
     private static class ObserverInternal {
         public final String name;
-        //TODO(b/120598832): Add getter for mPackages
         @GuardedBy("mLock")
         public final ArrayMap<String, MonitoredPackage> packages = new ArrayMap<>();
         @Nullable
diff --git a/services/core/java/com/android/server/am/ActiveServices.java b/services/core/java/com/android/server/am/ActiveServices.java
index 1675b94..e7569be 100644
--- a/services/core/java/com/android/server/am/ActiveServices.java
+++ b/services/core/java/com/android/server/am/ActiveServices.java
@@ -1748,8 +1748,8 @@
                     s.instanceName, s.processName);
             // Once the apps have become associated, if one of them is caller is ephemeral
             // the target app should now be able to see the calling app
-            mAm.grantEphemeralAccessLocked(callerApp.userId, service,
-                    UserHandle.getAppId(s.appInfo.uid), UserHandle.getAppId(callerApp.uid));
+            mAm.grantImplicitAccess(callerApp.userId, service,
+                    UserHandle.getAppId(callerApp.uid), UserHandle.getAppId(s.appInfo.uid));
 
             AppBindRecord b = s.retrieveAppBindingLocked(service, callerApp);
             ConnectionRecord c = new ConnectionRecord(b, activity,
@@ -2802,8 +2802,9 @@
                 mAm.mUgmInternal.grantUriPermissionUncheckedFromIntent(si.neededGrants,
                         si.getUriPermissionsLocked());
             }
-            mAm.grantEphemeralAccessLocked(r.userId, si.intent, UserHandle.getAppId(r.appInfo.uid),
-                    UserHandle.getAppId(si.callingId));
+            mAm.grantImplicitAccess(r.userId, si.intent, UserHandle.getAppId(si.callingId),
+                    UserHandle.getAppId(r.appInfo.uid)
+            );
             bumpServiceExecutingLocked(r, execInFg, "start");
             if (!oomAdjusted) {
                 oomAdjusted = true;
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 55d422d..217a6c6 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -6115,10 +6115,9 @@
     }
 
     @VisibleForTesting
-    public void grantEphemeralAccessLocked(int userId, Intent intent,
-            int targetAppId, int ephemeralAppId) {
+    public void grantImplicitAccess(int userId, Intent intent, int callingAppId, int targetAppId) {
         getPackageManagerInternalLocked().
-                grantEphemeralAccess(userId, intent, targetAppId, ephemeralAppId);
+                grantImplicitAccess(userId, intent, callingAppId, targetAppId);
     }
 
     /**
@@ -7088,9 +7087,10 @@
             }
             checkTime(startTime, "getContentProviderImpl: done!");
 
-            grantEphemeralAccessLocked(userId, null /*intent*/,
-                    UserHandle.getAppId(cpi.applicationInfo.uid),
-                    UserHandle.getAppId(Binder.getCallingUid()));
+            grantImplicitAccess(userId, null /*intent*/,
+                    UserHandle.getAppId(Binder.getCallingUid()),
+                    UserHandle.getAppId(cpi.applicationInfo.uid)
+            );
         }
 
         // Wait for the provider to be published...
@@ -19296,12 +19296,6 @@
             // null permissions means all permissions are targeted
             return (mPermissions == null || ArrayUtils.contains(mPermissions, permission));
         }
-
-        @Override
-        public String toString() {
-            return "ShellDelegate{targetPackageName=" + mTargetPackageName
-                    + ", permissions=" + mPermissions + "}";
-        }
     }
 
     /**
diff --git a/services/core/java/com/android/server/am/MemoryStatUtil.java b/services/core/java/com/android/server/am/MemoryStatUtil.java
index e73abd1..fd64df9 100644
--- a/services/core/java/com/android/server/am/MemoryStatUtil.java
+++ b/services/core/java/com/android/server/am/MemoryStatUtil.java
@@ -63,8 +63,6 @@
     private static final Pattern CACHE_IN_BYTES = Pattern.compile("total_cache (\\d+)");
     private static final Pattern SWAP_IN_BYTES = Pattern.compile("total_swap (\\d+)");
 
-    private static final Pattern RSS_HIGH_WATERMARK_IN_KILOBYTES =
-            Pattern.compile("VmHWM:\\s*(\\d+)\\s*kB");
     private static final Pattern PROCFS_RSS_IN_KILOBYTES =
             Pattern.compile("VmRSS:\\s*(\\d+)\\s*kB");
     private static final Pattern PROCFS_ANON_RSS_IN_KILOBYTES =
@@ -113,15 +111,6 @@
     }
 
     /**
-     * Reads RSS high-water mark of a process from procfs. Returns value of the VmHWM field in
-     * /proc/PID/status in kilobytes or 0 if not available.
-     */
-    public static int readRssHighWaterMarkFromProcfs(int pid) {
-        final String statusPath = String.format(Locale.US, PROC_STATUS_FILE_FMT, pid);
-        return parseVmHWMFromProcfs(readFileContents(statusPath));
-    }
-
-    /**
      * Reads cmdline of a process from procfs.
      *
      * Returns content of /proc/pid/cmdline (e.g. /system/bin/statsd) or an empty string
@@ -204,19 +193,6 @@
     }
 
     /**
-     * Parses RSS high-water mark out from the contents of the /proc/pid/status file in procfs. The
-     * returned value is in kilobytes.
-     */
-    @VisibleForTesting
-    static int parseVmHWMFromProcfs(String procStatusContents) {
-        if (procStatusContents == null || procStatusContents.isEmpty()) {
-            return 0;
-        }
-        return (int) tryParseLong(RSS_HIGH_WATERMARK_IN_KILOBYTES, procStatusContents);
-    }
-
-
-    /**
      * Parses cmdline out of the contents of the /proc/pid/cmdline file in procfs.
      *
      * Parsing is required to strip anything after first null byte.
diff --git a/services/core/java/com/android/server/camera/CameraServiceProxy.java b/services/core/java/com/android/server/camera/CameraServiceProxy.java
index 09f5286..96af74a 100644
--- a/services/core/java/com/android/server/camera/CameraServiceProxy.java
+++ b/services/core/java/com/android/server/camera/CameraServiceProxy.java
@@ -79,7 +79,7 @@
     private static final int MSG_SWITCH_USER = 1;
 
     private static final int RETRY_DELAY_TIME = 20; //ms
-    private static final int RETRY_TIMES = 30;
+    private static final int RETRY_TIMES = 60;
 
     // Maximum entries to keep in usage history before dumping out
     private static final int MAX_USAGE_HISTORY = 100;
diff --git a/services/core/java/com/android/server/compat/PlatformCompat.java b/services/core/java/com/android/server/compat/PlatformCompat.java
index fc38735..81e507c 100644
--- a/services/core/java/com/android/server/compat/PlatformCompat.java
+++ b/services/core/java/com/android/server/compat/PlatformCompat.java
@@ -19,7 +19,9 @@
 import android.content.Context;
 import android.content.pm.ApplicationInfo;
 import android.util.Slog;
+import android.util.StatsLog;
 
+import com.android.internal.compat.ChangeReporter;
 import com.android.internal.compat.IPlatformCompat;
 import com.android.internal.util.DumpUtils;
 
@@ -34,23 +36,27 @@
     private static final String TAG = "Compatibility";
 
     private final Context mContext;
+    private final ChangeReporter mChangeReporter;
 
     public PlatformCompat(Context context) {
         mContext = context;
+        mChangeReporter = new ChangeReporter();
     }
 
     @Override
     public void reportChange(long changeId, ApplicationInfo appInfo) {
-        Slog.d(TAG, "Compat change reported: " + changeId + "; UID " + appInfo.uid);
-        // TODO log via StatsLog
+        reportChange(changeId, appInfo, StatsLog.APP_COMPATIBILITY_CHANGE_REPORTED__STATE__LOGGED);
     }
 
     @Override
     public boolean isChangeEnabled(long changeId, ApplicationInfo appInfo) {
         if (CompatConfig.get().isChangeEnabled(changeId, appInfo)) {
-            reportChange(changeId, appInfo);
+            reportChange(changeId, appInfo,
+                    StatsLog.APP_COMPATIBILITY_CHANGE_REPORTED__STATE__ENABLED);
             return true;
         }
+        reportChange(changeId, appInfo,
+                StatsLog.APP_COMPATIBILITY_CHANGE_REPORTED__STATE__DISABLED);
         return false;
     }
 
@@ -59,4 +65,13 @@
         if (!DumpUtils.checkDumpAndUsageStatsPermission(mContext, "platform_compat", pw)) return;
         CompatConfig.get().dumpConfig(pw);
     }
+
+    private void reportChange(long changeId, ApplicationInfo appInfo, int state) {
+        int uid = appInfo.uid;
+        //TODO(b/138374585): Implement rate limiting for the logs.
+        Slog.d(TAG, ChangeReporter.createLogString(uid, changeId, state));
+        mChangeReporter.reportChange(uid, changeId,
+                state, /* source */
+                StatsLog.APP_COMPATIBILITY_CHANGE_REPORTED__SOURCE__SYSTEM_SERVER);
+    }
 }
diff --git a/services/core/java/com/android/server/notification/NotificationComparator.java b/services/core/java/com/android/server/notification/NotificationComparator.java
index 9b9f4de..bc05154 100644
--- a/services/core/java/com/android/server/notification/NotificationComparator.java
+++ b/services/core/java/com/android/server/notification/NotificationComparator.java
@@ -129,6 +129,12 @@
             return -1 * Integer.compare(leftPriority, rightPriority);
         }
 
+        final boolean leftInterruptive = left.isInterruptive();
+        final boolean rightInterruptive = right.isInterruptive();
+        if (leftInterruptive != rightInterruptive) {
+            return -1 * Boolean.compare(leftInterruptive, rightInterruptive);
+        }
+
         // then break ties by time, most recent first
         return -1 * Long.compare(left.getRankingTimeMs(), right.getRankingTimeMs());
     }
diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index 2d4c6cf..d480cb6e 100644
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -5759,7 +5759,9 @@
                         notification.flags |=
                                 old.getNotification().flags & FLAG_FOREGROUND_SERVICE;
                         r.isUpdate = true;
-                        r.setTextChanged(isVisuallyInterruptive(old, r));
+                        final boolean isInterruptive = isVisuallyInterruptive(old, r);
+                        r.setTextChanged(isInterruptive);
+                        r.setInterruptive(isInterruptive);
                     }
 
                     mNotificationsByKey.put(n.getKey(), r);
@@ -5858,7 +5860,6 @@
 
         Notification oldN = old.sbn.getNotification();
         Notification newN = r.sbn.getNotification();
-
         if (oldN.extras == null || newN.extras == null) {
             if (DEBUG_INTERRUPTIVENESS) {
                 Slog.v(TAG, "INTERRUPTIVENESS: "
@@ -5890,6 +5891,7 @@
             }
             return true;
         }
+
         // Do not compare Spannables (will always return false); compare unstyled Strings
         final String oldText = String.valueOf(oldN.extras.get(Notification.EXTRA_TEXT));
         final String newText = String.valueOf(newN.extras.get(Notification.EXTRA_TEXT));
@@ -5904,6 +5906,7 @@
             }
             return true;
         }
+
         if (oldN.hasCompletedProgress() != newN.hasCompletedProgress()) {
             if (DEBUG_INTERRUPTIVENESS) {
                 Slog.v(TAG, "INTERRUPTIVENESS: "
@@ -5911,6 +5914,16 @@
             }
             return true;
         }
+
+        // Fields below are invisible to bubbles.
+        if (r.canBubble()) {
+            if (DEBUG_INTERRUPTIVENESS) {
+                Slog.v(TAG, "INTERRUPTIVENESS: "
+                        +  r.getKey() + " is not interruptive: bubble");
+            }
+            return false;
+        }
+
         // Actions
         if (Notification.areActionsVisiblyDifferent(oldN, newN)) {
             if (DEBUG_INTERRUPTIVENESS) {
@@ -5944,7 +5957,6 @@
         } catch (Exception e) {
             Slog.w(TAG, "error recovering builder", e);
         }
-
         return false;
     }
 
@@ -6139,12 +6151,17 @@
                     Slog.v(TAG, "INTERRUPTIVENESS: "
                             + record.getKey() + " is not interruptive: summary");
                 }
+            } else if (record.canBubble()) {
+                if (DEBUG_INTERRUPTIVENESS) {
+                    Slog.v(TAG, "INTERRUPTIVENESS: "
+                            + record.getKey() + " is not interruptive: bubble");
+                }
             } else {
+                record.setInterruptive(true);
                 if (DEBUG_INTERRUPTIVENESS) {
                     Slog.v(TAG, "INTERRUPTIVENESS: "
                             + record.getKey() + " is interruptive: alerted");
                 }
-                record.setInterruptive(true);
             }
             MetricsLogger.action(record.getLogMaker()
                     .setCategory(MetricsEvent.NOTIFICATION_ALERT)
@@ -6503,15 +6520,21 @@
             int indexBefore = findNotificationRecordIndexLocked(record);
             boolean interceptBefore = record.isIntercepted();
             int visibilityBefore = record.getPackageVisibilityOverride();
+            boolean interruptiveBefore = record.isInterruptive();
+
             recon.applyChangesLocked(record);
             applyZenModeLocked(record);
             mRankingHelper.sort(mNotificationList);
-            int indexAfter = findNotificationRecordIndexLocked(record);
-            boolean interceptAfter = record.isIntercepted();
-            int visibilityAfter = record.getPackageVisibilityOverride();
-            changed = indexBefore != indexAfter || interceptBefore != interceptAfter
-                    || visibilityBefore != visibilityAfter;
-            if (interceptBefore && !interceptAfter
+            boolean indexChanged = indexBefore != findNotificationRecordIndexLocked(record);
+            boolean interceptChanged = interceptBefore != record.isIntercepted();
+            boolean visibilityChanged = visibilityBefore != record.getPackageVisibilityOverride();
+
+            // Broadcast isInterruptive changes for bubbles.
+            boolean interruptiveChanged =
+                    record.canBubble() && (interruptiveBefore != record.isInterruptive());
+
+            changed = indexChanged || interceptChanged || visibilityChanged || interruptiveChanged;
+            if (interceptBefore && !record.isIntercepted()
                     && record.isNewEnoughForAlerting(System.currentTimeMillis())) {
                 buzzBeepBlinkLocked(record);
             }
@@ -7661,7 +7684,8 @@
                     record.getSound() != null || record.getVibration() != null,
                     record.getSystemGeneratedSmartActions(),
                     record.getSmartReplies(),
-                    record.canBubble()
+                    record.canBubble(),
+                    record.isInterruptive()
             );
             rankings.add(ranking);
         }
diff --git a/services/core/java/com/android/server/pm/AppsFilter.java b/services/core/java/com/android/server/pm/AppsFilter.java
index 48678bf..61ea84f 100644
--- a/services/core/java/com/android/server/pm/AppsFilter.java
+++ b/services/core/java/com/android/server/pm/AppsFilter.java
@@ -39,6 +39,7 @@
 import android.util.SparseArray;
 
 import com.android.internal.R;
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.server.FgThread;
 import com.android.server.compat.PlatformCompat;
 
@@ -55,14 +56,11 @@
  * The entity responsible for filtering visibility between apps based on declarations in their
  * manifests.
  */
-class AppsFilter {
+@VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE)
+public class AppsFilter {
 
     private static final String TAG = PackageManagerService.TAG;
 
-    // Forces filtering logic to run for debug purposes.
-    // STOPSHIP (b/136675067): should be false after development is complete
-    private static final boolean DEBUG_RUN_WHEN_DISABLED = false;
-
     // Logs all filtering instead of enforcing
     private static final boolean DEBUG_ALLOW_ALL = false;
 
@@ -128,15 +126,13 @@
 
         /** @return true if the feature is enabled for the given package. */
         boolean packageIsEnabled(PackageParser.Package pkg);
+
     }
 
     private static class FeatureConfigImpl implements FeatureConfig {
         private static final String FILTERING_ENABLED_NAME = "package_query_filtering_enabled";
-
-        // STOPSHIP(patb): set this to true if we plan to launch this in R
-        private static final boolean DEFAULT_ENABLED_STATE = false;
         private final PackageManagerService.Injector mInjector;
-        private volatile boolean mFeatureEnabled = DEFAULT_ENABLED_STATE;
+        private volatile boolean mFeatureEnabled = true;
 
         private FeatureConfigImpl(PackageManagerService.Injector injector) {
             mInjector = injector;
@@ -146,13 +142,13 @@
         public void onSystemReady() {
             mFeatureEnabled = DeviceConfig.getBoolean(
                     NAMESPACE_PACKAGE_MANAGER_SERVICE, FILTERING_ENABLED_NAME,
-                    DEFAULT_ENABLED_STATE);
+                    true);
             DeviceConfig.addOnPropertiesChangedListener(
                     NAMESPACE_PACKAGE_MANAGER_SERVICE, FgThread.getExecutor(),
                     properties -> {
                         synchronized (FeatureConfigImpl.this) {
                             mFeatureEnabled = properties.getBoolean(
-                                    FILTERING_ENABLED_NAME, DEFAULT_ENABLED_STATE);
+                                    FILTERING_ENABLED_NAME, true);
                         }
                     });
         }
@@ -246,25 +242,25 @@
     }
 
     /**
-     * Marks that a package initiated an interaction with another package, granting visibility of
-     * the prior from the former.
+     * Grants access based on an interaction between a calling and target package, granting
+     * visibility of the caller from the target.
      *
-     * @param initiatingPackage the package initiating the interaction
+     * @param callingPackage    the package initiating the interaction
      * @param targetPackage     the package being interacted with and thus gaining visibility of the
      *                          initiating package.
      * @param userId            the user in which this interaction was taking place
      */
-    private void markAppInteraction(
-            PackageSetting initiatingPackage, PackageSetting targetPackage, int userId) {
+    public void grantImplicitAccess(
+            String callingPackage, String targetPackage, int userId) {
         HashMap<String, Set<String>> currentUser = mImplicitlyQueryable.get(userId);
         if (currentUser == null) {
             currentUser = new HashMap<>();
             mImplicitlyQueryable.put(userId, currentUser);
         }
-        if (!currentUser.containsKey(targetPackage.pkg.packageName)) {
-            currentUser.put(targetPackage.pkg.packageName, new HashSet<>());
+        if (!currentUser.containsKey(targetPackage)) {
+            currentUser.put(targetPackage, new HashSet<>());
         }
-        currentUser.get(targetPackage.pkg.packageName).add(initiatingPackage.pkg.packageName);
+        currentUser.get(targetPackage).add(callingPackage);
     }
 
     public void onSystemReady() {
@@ -353,7 +349,7 @@
     public boolean shouldFilterApplication(int callingUid, @Nullable SettingBase callingSetting,
             PackageSetting targetPkgSetting, int userId) {
         final boolean featureEnabled = mFeatureConfig.isGloballyEnabled();
-        if (!featureEnabled && !DEBUG_RUN_WHEN_DISABLED) {
+        if (!featureEnabled) {
             if (DEBUG_LOGGING) {
                 Slog.d(TAG, "filtering disabled; skipped");
             }
@@ -374,8 +370,6 @@
             callingPkgSetting = (PackageSetting) callingSetting;
             if (!shouldFilterApplicationInternal(callingPkgSetting, targetPkgSetting,
                     userId)) {
-                // TODO: actually base this on a start / launch (not just a query)
-                markAppInteraction(callingPkgSetting, targetPkgSetting, userId);
                 return false;
             }
         } else if (callingSetting instanceof SharedUserSetting) {
@@ -386,8 +380,6 @@
                     final PackageSetting packageSetting = packageSettings.valueAt(i);
                     if (!shouldFilterApplicationInternal(packageSetting, targetPkgSetting,
                             userId)) {
-                        // TODO: actually base this on a start / launch (not just a query)
-                        markAppInteraction(packageSetting, targetPkgSetting, userId);
                         return false;
                     }
                     if (callingPkgSetting == null && packageSetting.pkg != null) {
@@ -403,21 +395,12 @@
                 return true;
             }
         }
-        if (!featureEnabled) {
-            return false;
+
+        if (DEBUG_LOGGING) {
+            log(callingPkgSetting, targetPkgSetting,
+                    DEBUG_ALLOW_ALL ? "ALLOWED" : "BLOCKED");
         }
-        if (mFeatureConfig.packageIsEnabled(callingPkgSetting.pkg)) {
-            if (DEBUG_LOGGING) {
-                log(callingPkgSetting, targetPkgSetting,
-                        DEBUG_ALLOW_ALL ? "ALLOWED" : "BLOCKED");
-            }
-            return !DEBUG_ALLOW_ALL;
-        } else {
-            if (DEBUG_LOGGING) {
-                log(callingPkgSetting, targetPkgSetting, "DISABLED");
-            }
-            return false;
-        }
+        return !DEBUG_ALLOW_ALL;
     }
 
     private boolean shouldFilterApplicationInternal(
@@ -425,6 +408,12 @@
         final String callingName = callingPkgSetting.pkg.packageName;
         final PackageParser.Package targetPkg = targetPkgSetting.pkg;
 
+        if (!mFeatureConfig.packageIsEnabled(callingPkgSetting.pkg)) {
+            if (DEBUG_LOGGING) {
+                log(callingPkgSetting, targetPkgSetting, "DISABLED");
+            }
+            return false;
+        }
         // This package isn't technically installed and won't be written to settings, so we can
         // treat it as filtered until it's available again.
         if (targetPkg == null) {
diff --git a/services/core/java/com/android/server/pm/InstantAppRegistry.java b/services/core/java/com/android/server/pm/InstantAppRegistry.java
index 5eaddf9..9e04c4b 100644
--- a/services/core/java/com/android/server/pm/InstantAppRegistry.java
+++ b/services/core/java/com/android/server/pm/InstantAppRegistry.java
@@ -401,7 +401,7 @@
 
     @GuardedBy("mService.mLock")
     public void grantInstantAccessLPw(@UserIdInt int userId, @Nullable Intent intent,
-            int targetAppId, int instantAppId) {
+            int instantAppId, int targetAppId) {
         if (mInstalledInstantAppUids == null) {
             return;     // no instant apps installed; no need to grant
         }
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index 58596aa..fe3d2c8 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -23380,11 +23380,24 @@
         }
 
         @Override
-        public void grantEphemeralAccess(int userId, Intent intent,
-                int targetAppId, int ephemeralAppId) {
+        public void grantImplicitAccess(int userId, Intent intent,
+                int callingAppId, int targetAppId) {
             synchronized (mLock) {
-                mInstantAppRegistry.grantInstantAccessLPw(userId, intent,
-                        targetAppId, ephemeralAppId);
+                final PackageParser.Package callingPackage = getPackage(
+                        UserHandle.getUid(userId, callingAppId));
+                final PackageParser.Package targetPackage = getPackage(
+                        UserHandle.getUid(userId, targetAppId));
+                if (callingPackage == null || targetPackage == null) {
+                    return;
+                }
+
+                if (isInstantApp(callingPackage.packageName, userId)) {
+                    mInstantAppRegistry.grantInstantAccessLPw(userId, intent,
+                            callingAppId, targetAppId);
+                } else {
+                    mAppsFilter.grantImplicitAccess(
+                            callingPackage.packageName, targetPackage.packageName, userId);
+                }
             }
         }
 
diff --git a/services/core/java/com/android/server/pm/StagingManager.java b/services/core/java/com/android/server/pm/StagingManager.java
index 3482e92..1cea4ca 100644
--- a/services/core/java/com/android/server/pm/StagingManager.java
+++ b/services/core/java/com/android/server/pm/StagingManager.java
@@ -301,7 +301,7 @@
                 // Greedily re-trigger the pre-reboot verification.
                 Slog.d(TAG, "Found pending staged session " + session.sessionId + " still to be "
                         + "verified, resuming pre-reboot verification");
-                mPreRebootVerificationHandler.startPreRebootVerification(session);
+                mPreRebootVerificationHandler.startPreRebootVerification(session.sessionId);
                 return;
             }
             if (!apexSessionInfo.isActivated && !apexSessionInfo.isSuccess) {
@@ -429,7 +429,7 @@
                             return;
                         }
                         mPreRebootVerificationHandler.notifyPreRebootVerification_Apk_Complete(
-                                originalSession);
+                                originalSession.sessionId);
                     });
             apkSession.commit(receiver.getIntentSender(), false);
             return;
@@ -526,7 +526,7 @@
 
     void commitSession(@NonNull PackageInstallerSession session) {
         updateStoredSession(session);
-        mPreRebootVerificationHandler.startPreRebootVerification(session);
+        mPreRebootVerificationHandler.startPreRebootVerification(session.sessionId);
     }
 
     @Nullable
@@ -653,7 +653,7 @@
         if (!session.isStagedSessionReady()) {
             // The framework got restarted before the pre-reboot verification could complete,
             // restart the verification.
-            mPreRebootVerificationHandler.startPreRebootVerification(session);
+            mPreRebootVerificationHandler.startPreRebootVerification(session.sessionId);
         } else {
             // Session had already being marked ready. Start the checks to verify if there is any
             // follow-up work.
@@ -737,7 +737,16 @@
 
         @Override
         public void handleMessage(Message msg) {
-            PackageInstallerSession session = (PackageInstallerSession) msg.obj;
+            final int sessionId = msg.arg1;
+            final PackageInstallerSession session;
+            synchronized (mStagedSessions) {
+                session = mStagedSessions.get(sessionId);
+            }
+            // Maybe session was aborted before pre-reboot verification was complete
+            if (session == null) {
+                Slog.d(TAG, "Stopping pre-reboot verification for sessionId: " + sessionId);
+                return;
+            }
             switch (msg.what) {
                 case MSG_PRE_REBOOT_VERIFICATION_START:
                     handlePreRebootVerification_Start(session);
@@ -755,20 +764,20 @@
         }
 
         // Method for starting the pre-reboot verification
-        private void startPreRebootVerification(PackageInstallerSession session) {
-            obtainMessage(MSG_PRE_REBOOT_VERIFICATION_START, session).sendToTarget();
+        private void startPreRebootVerification(int sessionId) {
+            obtainMessage(MSG_PRE_REBOOT_VERIFICATION_START, sessionId, 0).sendToTarget();
         }
 
-        private void notifyPreRebootVerification_Start_Complete(PackageInstallerSession session) {
-            obtainMessage(MSG_PRE_REBOOT_VERIFICATION_APEX, session).sendToTarget();
+        private void notifyPreRebootVerification_Start_Complete(int sessionId) {
+            obtainMessage(MSG_PRE_REBOOT_VERIFICATION_APEX, sessionId, 0).sendToTarget();
         }
 
-        private void notifyPreRebootVerification_Apex_Complete(PackageInstallerSession session) {
-            obtainMessage(MSG_PRE_REBOOT_VERIFICATION_APK, session).sendToTarget();
+        private void notifyPreRebootVerification_Apex_Complete(int sessionId) {
+            obtainMessage(MSG_PRE_REBOOT_VERIFICATION_APK, sessionId, 0).sendToTarget();
         }
 
-        private void notifyPreRebootVerification_Apk_Complete(PackageInstallerSession session) {
-            obtainMessage(MSG_PRE_REBOOT_VERIFICATION_END, session).sendToTarget();
+        private void notifyPreRebootVerification_Apk_Complete(int sessionId) {
+            obtainMessage(MSG_PRE_REBOOT_VERIFICATION_END, sessionId, 0).sendToTarget();
         }
 
         /**
@@ -778,7 +787,7 @@
          */
         private void handlePreRebootVerification_Start(@NonNull PackageInstallerSession session) {
             Slog.d(TAG, "Starting preRebootVerification for session " + session.sessionId);
-            notifyPreRebootVerification_Start_Complete(session);
+            notifyPreRebootVerification_Start_Complete(session.sessionId);
         }
 
         /**
@@ -808,7 +817,7 @@
                 }
             }
 
-            notifyPreRebootVerification_Apex_Complete(session);
+            notifyPreRebootVerification_Apex_Complete(session.sessionId);
         }
 
         /**
@@ -819,7 +828,7 @@
          */
         private void handlePreRebootVerification_Apk(@NonNull PackageInstallerSession session) {
             if (!sessionContainsApk(session)) {
-                notifyPreRebootVerification_Apk_Complete(session);
+                notifyPreRebootVerification_Apk_Complete(session.sessionId);
                 return;
             }
 
diff --git a/services/core/java/com/android/server/pm/permission/PermissionManagerService.java b/services/core/java/com/android/server/pm/permission/PermissionManagerService.java
index 226adc8..a57321e 100644
--- a/services/core/java/com/android/server/pm/permission/PermissionManagerService.java
+++ b/services/core/java/com/android/server/pm/permission/PermissionManagerService.java
@@ -793,62 +793,68 @@
 
         final CheckPermissionDelegate checkPermissionDelegate;
         synchronized (mLock) {
-            if (mCheckPermissionDelegate == null)  {
-                return checkPermissionImpl(permName, pkgName, userId);
-            }
             checkPermissionDelegate = mCheckPermissionDelegate;
         }
+        if (checkPermissionDelegate == null)  {
+            return checkPermissionImpl(permName, pkgName, userId);
+        }
         return checkPermissionDelegate.checkPermission(permName, pkgName, userId,
-                PermissionManagerService.this::checkPermissionImpl);
+                this::checkPermissionImpl);
     }
 
-    private int checkPermissionImpl(String permName, String pkgName, int userId) {
-        final PackageParser.Package pkg = mPackageManagerInt.getPackage(pkgName);
+    private int checkPermissionImpl(@NonNull String permissionName, @NonNull String packageName,
+            @UserIdInt int userId) {
+        final PackageParser.Package pkg = mPackageManagerInt.getPackage(packageName);
         if (pkg == null) {
             return PackageManager.PERMISSION_DENIED;
         }
-        return checkPermissionInternal(pkg, true, permName, userId);
+        return checkPermissionInternal(pkg, true, permissionName, true, userId)
+                ? PackageManager.PERMISSION_GRANTED : PackageManager.PERMISSION_DENIED;
     }
 
-    private int checkPermissionInternal(@NonNull Package pkg, boolean isPackageExplicit,
-            @NonNull String permissionName, @UserIdInt int userId) {
+    private boolean checkPermissionInternal(@NonNull Package pkg, boolean isPackageExplicit,
+            @NonNull String permissionName, boolean useRequestedPermissionsForLegacyApps,
+            @UserIdInt int userId) {
         final int callingUid = getCallingUid();
         if (isPackageExplicit || pkg.mSharedUserId == null) {
             if (mPackageManagerInt.filterAppAccess(pkg, callingUid, userId)) {
-                return PackageManager.PERMISSION_DENIED;
+                return false;
             }
         } else {
             if (mPackageManagerInt.getInstantAppPackageName(callingUid) != null) {
-                return PackageManager.PERMISSION_DENIED;
+                return false;
             }
         }
 
         final int uid = UserHandle.getUid(userId, pkg.applicationInfo.uid);
         final PackageSetting ps = (PackageSetting) pkg.mExtras;
         if (ps == null) {
-            return PackageManager.PERMISSION_DENIED;
+            return false;
         }
         final PermissionsState permissionsState = ps.getPermissionsState();
 
-        if (checkSinglePermissionInternal(uid, permissionsState, permissionName)) {
-            return PackageManager.PERMISSION_GRANTED;
+        if (checkSinglePermissionInternal(uid, permissionsState, permissionName,
+                useRequestedPermissionsForLegacyApps)) {
+            return true;
         }
 
         final String fullerPermissionName = FULLER_PERMISSION_MAP.get(permissionName);
-        if (fullerPermissionName != null
-                && checkSinglePermissionInternal(uid, permissionsState, fullerPermissionName)) {
-            return PackageManager.PERMISSION_GRANTED;
+        if (fullerPermissionName != null && checkSinglePermissionInternal(uid, permissionsState,
+                fullerPermissionName, useRequestedPermissionsForLegacyApps)) {
+            return true;
         }
 
-        return PackageManager.PERMISSION_DENIED;
+        return false;
     }
 
     private boolean checkSinglePermissionInternal(int uid,
-            @NonNull PermissionsState permissionsState, @NonNull String permissionName) {
+            @NonNull PermissionsState permissionsState, @NonNull String permissionName,
+            boolean useRequestedPermissionsForLegacyApps) {
         boolean hasPermission = permissionsState.hasPermission(permissionName,
                 UserHandle.getUserId(uid));
 
-        if (!hasPermission && mSettings.isPermissionRuntime(permissionName)) {
+        if (!hasPermission && useRequestedPermissionsForLegacyApps
+                && mSettings.isPermissionRuntime(permissionName)) {
             final String[] packageNames = mContext.getPackageManager().getPackagesForUid(uid);
             final int packageNamesSize = packageNames != null ? packageNames.length : 0;
             for (int i = 0; i < packageNamesSize; i++) {
@@ -891,12 +897,13 @@
             checkPermissionDelegate = mCheckPermissionDelegate;
         }
         return checkPermissionDelegate.checkUidPermission(permName, uid,
-                PermissionManagerService.this::checkUidPermissionImpl);
+                this::checkUidPermissionImpl);
     }
 
-    private int checkUidPermissionImpl(String permName, int uid) {
+    private int checkUidPermissionImpl(@NonNull String permissionName, int uid) {
         final PackageParser.Package pkg = mPackageManagerInt.getPackage(uid);
-        return checkUidPermissionInternal(pkg, uid, permName);
+        return checkUidPermissionInternal(uid, pkg, permissionName, true)
+                ? PackageManager.PERMISSION_GRANTED : PackageManager.PERMISSION_DENIED;
     }
 
     /**
@@ -906,24 +913,25 @@
      *
      * @see SystemConfig#getSystemPermissions()
      */
-    private int checkUidPermissionInternal(@Nullable Package pkg, int uid,
-            @NonNull String permissionName) {
+    private boolean checkUidPermissionInternal(int uid, @Nullable Package pkg,
+            @NonNull String permissionName, boolean useRequestedPermissionsForLegacyApps) {
         if (pkg != null) {
             final int userId = UserHandle.getUserId(uid);
-            return checkPermissionInternal(pkg, false, permissionName, userId);
+            return checkPermissionInternal(pkg, false, permissionName,
+                    useRequestedPermissionsForLegacyApps, userId);
         }
 
         if (checkSingleUidPermissionInternal(uid, permissionName)) {
-            return PackageManager.PERMISSION_GRANTED;
+            return true;
         }
 
         final String fullerPermissionName = FULLER_PERMISSION_MAP.get(permissionName);
         if (fullerPermissionName != null
                 && checkSingleUidPermissionInternal(uid, fullerPermissionName)) {
-            return PackageManager.PERMISSION_GRANTED;
+            return true;
         }
 
-        return PackageManager.PERMISSION_DENIED;
+        return false;
     }
 
     private boolean checkSingleUidPermissionInternal(int uid, @NonNull String permissionName) {
@@ -933,6 +941,17 @@
         }
     }
 
+    private int computeRuntimePermissionAppOpMode(int uid, @NonNull String permissionName) {
+        boolean granted = isUidPermissionGranted(uid, permissionName);
+        // TODO: Foreground permissions.
+        return granted ? AppOpsManager.MODE_ALLOWED : AppOpsManager.MODE_IGNORED;
+    }
+
+    private boolean isUidPermissionGranted(int uid, @NonNull String permissionName) {
+        final PackageParser.Package pkg = mPackageManagerInt.getPackage(uid);
+        return checkUidPermissionInternal(uid, pkg, permissionName, false);
+    }
+
     @Override
     public void addOnPermissionsChangeListener(IOnPermissionsChangeListener listener) {
         mContext.enforceCallingOrSelfPermission(
@@ -4283,7 +4302,6 @@
         public void setCheckPermissionDelegate(CheckPermissionDelegate delegate) {
             synchronized (mLock) {
                 mCheckPermissionDelegate = delegate;
-                Slog.d(TAG, "CheckPermissionDelegate set to " + delegate);
             }
         }
 
@@ -4447,6 +4465,12 @@
                         StorageManager.UUID_PRIVATE_INTERNAL, true, mDefaultPermissionCallback);
             }
         }
+
+        @Override
+        public int computeRuntimePermissionAppOpMode(int uid, @NonNull String permissionName) {
+            return PermissionManagerService.this.computeRuntimePermissionAppOpMode(uid,
+                    permissionName);
+        }
     }
 
     private static final class OnPermissionChangeListeners extends Handler {
diff --git a/services/core/java/com/android/server/pm/permission/PermissionManagerServiceInternal.java b/services/core/java/com/android/server/pm/permission/PermissionManagerServiceInternal.java
index 04ec5ba..8f22f92 100644
--- a/services/core/java/com/android/server/pm/permission/PermissionManagerServiceInternal.java
+++ b/services/core/java/com/android/server/pm/permission/PermissionManagerServiceInternal.java
@@ -445,4 +445,13 @@
 
     /** Called when a new user has been created. */
     public abstract void onNewUserCreated(@UserIdInt int userId);
+
+    /**
+     * Compute an app op mode based on its runtime permission state.
+     *
+     * @param uid the uid for the app op
+     * @param permissionName the permission name for the app op
+     * @return the computed mode
+     */
+    public abstract int computeRuntimePermissionAppOpMode(int uid, @NonNull String permissionName);
 }
diff --git a/services/core/java/com/android/server/stats/ProcfsMemoryUtil.java b/services/core/java/com/android/server/stats/ProcfsMemoryUtil.java
new file mode 100644
index 0000000..3076284
--- /dev/null
+++ b/services/core/java/com/android/server/stats/ProcfsMemoryUtil.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.server.stats;
+
+import android.os.FileUtils;
+import android.util.Slog;
+
+import com.android.internal.annotations.VisibleForTesting;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.Locale;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+final class ProcfsMemoryUtil {
+    private static final String TAG = "ProcfsMemoryUtil";
+
+    /** Path to procfs status file: /proc/pid/status. */
+    private static final String STATUS_FILE_FMT = "/proc/%d/status";
+
+    private static final Pattern RSS_HIGH_WATER_MARK_IN_KILOBYTES =
+            Pattern.compile("VmHWM:\\s*(\\d+)\\s*kB");
+
+    private ProcfsMemoryUtil() {}
+
+    /**
+     * Reads RSS high-water mark of a process from procfs. Returns value of the VmHWM field in
+     * /proc/PID/status in kilobytes or 0 if not available.
+     */
+    static int readRssHighWaterMarkFromProcfs(int pid) {
+        final String statusPath = String.format(Locale.US, STATUS_FILE_FMT, pid);
+        return parseVmHWMFromStatus(readFile(statusPath));
+    }
+
+    /**
+     * Parses RSS high-water mark out from the contents of the /proc/pid/status file in procfs. The
+     * returned value is in kilobytes.
+     */
+    @VisibleForTesting
+    static int parseVmHWMFromStatus(String contents) {
+        if (contents.isEmpty()) {
+            return 0;
+        }
+        final Matcher matcher = RSS_HIGH_WATER_MARK_IN_KILOBYTES.matcher(contents);
+        try {
+            return matcher.find() ? Integer.parseInt(matcher.group(1)) : 0;
+        } catch (NumberFormatException e) {
+            Slog.e(TAG, "Failed to parse value", e);
+            return 0;
+        }
+    }
+
+    private static String readFile(String path) {
+        try {
+            final File file = new File(path);
+            return FileUtils.readTextFile(file, 0 /* max */, null /* ellipsis */);
+        } catch (IOException e) {
+            return "";
+        }
+    }
+}
diff --git a/services/core/java/com/android/server/stats/StatsCompanionService.java b/services/core/java/com/android/server/stats/StatsCompanionService.java
index e92abfd..19b8055 100644
--- a/services/core/java/com/android/server/stats/StatsCompanionService.java
+++ b/services/core/java/com/android/server/stats/StatsCompanionService.java
@@ -27,9 +27,9 @@
 import static com.android.server.am.MemoryStatUtil.readCmdlineFromProcfs;
 import static com.android.server.am.MemoryStatUtil.readMemoryStatFromFilesystem;
 import static com.android.server.am.MemoryStatUtil.readMemoryStatFromProcfs;
-import static com.android.server.am.MemoryStatUtil.readRssHighWaterMarkFromProcfs;
 import static com.android.server.stats.IonMemoryUtil.readProcessSystemIonHeapSizesFromDebugfs;
 import static com.android.server.stats.IonMemoryUtil.readSystemIonHeapSizeFromDebugfs;
+import static com.android.server.stats.ProcfsMemoryUtil.readRssHighWaterMarkFromProcfs;
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
diff --git a/services/core/java/com/android/server/tv/TvRemoteProviderProxy.java b/services/core/java/com/android/server/tv/TvRemoteProviderProxy.java
index b27d5ea..f8ffb7c 100644
--- a/services/core/java/com/android/server/tv/TvRemoteProviderProxy.java
+++ b/services/core/java/com/android/server/tv/TvRemoteProviderProxy.java
@@ -23,7 +23,6 @@
 import android.media.tv.ITvRemoteProvider;
 import android.media.tv.ITvRemoteServiceInput;
 import android.os.Binder;
-import android.os.Handler;
 import android.os.IBinder;
 import android.os.RemoteException;
 import android.os.UserHandle;
@@ -49,7 +48,6 @@
     private final ComponentName mComponentName;
     private final int mUserId;
     private final int mUid;
-    private final Handler mHandler;
 
     /**
      * State guarded by mLock.
@@ -65,15 +63,14 @@
     private boolean mRunning;
     private boolean mBound;
     private Connection mActiveConnection;
-    private boolean mConnectionReady;
 
-    public TvRemoteProviderProxy(Context context, ComponentName componentName, int userId,
-                                 int uid) {
+    TvRemoteProviderProxy(Context context, ProviderMethods provider,
+                          ComponentName componentName, int userId, int uid) {
         mContext = context;
+        mProviderMethods = provider;
         mComponentName = componentName;
         mUserId = userId;
         mUid = uid;
-        mHandler = new Handler();
     }
 
     public void dump(PrintWriter pw, String prefix) {
@@ -82,11 +79,6 @@
         pw.println(prefix + "  mRunning=" + mRunning);
         pw.println(prefix + "  mBound=" + mBound);
         pw.println(prefix + "  mActiveConnection=" + mActiveConnection);
-        pw.println(prefix + "  mConnectionReady=" + mConnectionReady);
-    }
-
-    public void setProviderSink(ProviderMethods provider) {
-        mProviderMethods = provider;
     }
 
     public boolean hasComponentName(String packageName, String className) {
@@ -101,7 +93,7 @@
             }
 
             mRunning = true;
-            updateBinding();
+            bind();
         }
     }
 
@@ -112,31 +104,19 @@
             }
 
             mRunning = false;
-            updateBinding();
+            unbind();
         }
     }
 
     public void rebindIfDisconnected() {
         synchronized (mLock) {
-            if (mActiveConnection == null && shouldBind()) {
+            if (mActiveConnection == null && mRunning) {
                 unbind();
                 bind();
             }
         }
     }
 
-    private void updateBinding() {
-        if (shouldBind()) {
-            bind();
-        } else {
-            unbind();
-        }
-    }
-
-    private boolean shouldBind() {
-        return mRunning;
-    }
-
     private void bind() {
         if (!mBound) {
             if (DEBUG) {
@@ -208,48 +188,19 @@
         disconnect();
     }
 
-
-    private void onConnectionReady(Connection connection) {
-        synchronized (mLock) {
-            if (DEBUG) Slog.d(TAG, "onConnectionReady");
-            if (mActiveConnection == connection) {
-                if (DEBUG) Slog.d(TAG, "mConnectionReady = true");
-                mConnectionReady = true;
-            }
-        }
-    }
-
-    private void onConnectionDied(Connection connection) {
-        if (mActiveConnection == connection) {
-            if (DEBUG) Slog.d(TAG, this + ": Service connection died");
-            disconnect();
-        }
-    }
-
     private void disconnect() {
         synchronized (mLock) {
             if (mActiveConnection != null) {
-                mConnectionReady = false;
                 mActiveConnection.dispose();
                 mActiveConnection = null;
             }
         }
     }
 
-    // Provider helpers
-    public void inputBridgeConnected(IBinder token) {
-        synchronized (mLock) {
-            if (DEBUG) Slog.d(TAG, this + ": inputBridgeConnected token: " + token);
-            if (mConnectionReady) {
-                mActiveConnection.onInputBridgeConnected(token);
-            }
-        }
-    }
-
-    public interface ProviderMethods {
+    interface ProviderMethods {
         // InputBridge
-        void openInputBridge(TvRemoteProviderProxy provider, IBinder token, String name,
-                             int width, int height, int maxPointers);
+        boolean openInputBridge(TvRemoteProviderProxy provider, IBinder token, String name,
+                                int width, int height, int maxPointers);
 
         void closeInputBridge(TvRemoteProviderProxy provider, IBinder token);
 
@@ -267,7 +218,7 @@
         void sendPointerSync(TvRemoteProviderProxy provider, IBinder token);
     }
 
-    private final class Connection implements IBinder.DeathRecipient {
+    private final class Connection {
         private final ITvRemoteProvider mTvRemoteProvider;
         private final RemoteServiceInputProvider mServiceInputProvider;
 
@@ -279,24 +230,16 @@
         public boolean register() {
             if (DEBUG) Slog.d(TAG, "Connection::register()");
             try {
-                mTvRemoteProvider.asBinder().linkToDeath(this, 0);
                 mTvRemoteProvider.setRemoteServiceInputSink(mServiceInputProvider);
-                mHandler.post(new Runnable() {
-                    @Override
-                    public void run() {
-                        onConnectionReady(Connection.this);
-                    }
-                });
                 return true;
             } catch (RemoteException ex) {
-                binderDied();
+                dispose();
+                return false;
             }
-            return false;
         }
 
         public void dispose() {
             if (DEBUG) Slog.d(TAG, "Connection::dispose()");
-            mTvRemoteProvider.asBinder().unlinkToDeath(this, 0);
             mServiceInputProvider.dispose();
         }
 
@@ -310,16 +253,6 @@
             }
         }
 
-        @Override
-        public void binderDied() {
-            mHandler.post(new Runnable() {
-                @Override
-                public void run() {
-                    onConnectionDied(Connection.this);
-                }
-            });
-        }
-
         void openInputBridge(final IBinder token, final String name, final int width,
                              final int height, final int maxPointers) {
             synchronized (mLock) {
@@ -330,9 +263,9 @@
                     }
                     final long idToken = Binder.clearCallingIdentity();
                     try {
-                        if (mProviderMethods != null) {
-                            mProviderMethods.openInputBridge(TvRemoteProviderProxy.this, token,
-                                    name, width, height, maxPointers);
+                        if (mProviderMethods.openInputBridge(TvRemoteProviderProxy.this, token,
+                                                             name, width, height, maxPointers)) {
+                            onInputBridgeConnected(token);
                         }
                     } finally {
                         Binder.restoreCallingIdentity(idToken);
@@ -356,9 +289,7 @@
                     }
                     final long idToken = Binder.clearCallingIdentity();
                     try {
-                        if (mProviderMethods != null) {
-                            mProviderMethods.closeInputBridge(TvRemoteProviderProxy.this, token);
-                        }
+                        mProviderMethods.closeInputBridge(TvRemoteProviderProxy.this, token);
                     } finally {
                         Binder.restoreCallingIdentity(idToken);
                     }
@@ -381,9 +312,7 @@
                     }
                     final long idToken = Binder.clearCallingIdentity();
                     try {
-                        if (mProviderMethods != null) {
-                            mProviderMethods.clearInputBridge(TvRemoteProviderProxy.this, token);
-                        }
+                        mProviderMethods.clearInputBridge(TvRemoteProviderProxy.this, token);
                     } finally {
                         Binder.restoreCallingIdentity(idToken);
                     }
@@ -412,10 +341,7 @@
                     }
                     final long idToken = Binder.clearCallingIdentity();
                     try {
-                        if (mProviderMethods != null) {
-                            mProviderMethods.sendKeyDown(TvRemoteProviderProxy.this, token,
-                                    keyCode);
-                        }
+                        mProviderMethods.sendKeyDown(TvRemoteProviderProxy.this, token, keyCode);
                     } finally {
                         Binder.restoreCallingIdentity(idToken);
                     }
@@ -438,9 +364,7 @@
                     }
                     final long idToken = Binder.clearCallingIdentity();
                     try {
-                        if (mProviderMethods != null) {
-                            mProviderMethods.sendKeyUp(TvRemoteProviderProxy.this, token, keyCode);
-                        }
+                        mProviderMethods.sendKeyUp(TvRemoteProviderProxy.this, token, keyCode);
                     } finally {
                         Binder.restoreCallingIdentity(idToken);
                     }
@@ -463,10 +387,8 @@
                     }
                     final long idToken = Binder.clearCallingIdentity();
                     try {
-                        if (mProviderMethods != null) {
-                            mProviderMethods.sendPointerDown(TvRemoteProviderProxy.this, token,
-                                    pointerId, x, y);
-                        }
+                        mProviderMethods.sendPointerDown(TvRemoteProviderProxy.this, token,
+                                pointerId, x, y);
                     } finally {
                         Binder.restoreCallingIdentity(idToken);
                     }
@@ -489,10 +411,8 @@
                     }
                     final long idToken = Binder.clearCallingIdentity();
                     try {
-                        if (mProviderMethods != null) {
-                            mProviderMethods.sendPointerUp(TvRemoteProviderProxy.this, token,
-                                    pointerId);
-                        }
+                        mProviderMethods.sendPointerUp(TvRemoteProviderProxy.this, token,
+                                pointerId);
                     } finally {
                         Binder.restoreCallingIdentity(idToken);
                     }
diff --git a/services/core/java/com/android/server/tv/TvRemoteProviderWatcher.java b/services/core/java/com/android/server/tv/TvRemoteProviderWatcher.java
index d27970f..0d29edd 100644
--- a/services/core/java/com/android/server/tv/TvRemoteProviderWatcher.java
+++ b/services/core/java/com/android/server/tv/TvRemoteProviderWatcher.java
@@ -45,7 +45,7 @@
     private static final boolean DEBUG = Log.isLoggable(TAG, Log.VERBOSE);
 
     private final Context mContext;
-    private final ProviderMethods mProvider;
+    private final TvRemoteProviderProxy.ProviderMethods mProvider;
     private final Handler mHandler;
     private final PackageManager mPackageManager;
     private final ArrayList<TvRemoteProviderProxy> mProviderProxies = new ArrayList<>();
@@ -54,10 +54,10 @@
 
     private boolean mRunning;
 
-    public TvRemoteProviderWatcher(Context context, ProviderMethods provider, Handler handler) {
+    TvRemoteProviderWatcher(Context context, TvRemoteProviderProxy.ProviderMethods provider) {
         mContext = context;
         mProvider = provider;
-        mHandler = handler;
+        mHandler = new Handler(true);
         mUserId = UserHandle.myUserId();
         mPackageManager = context.getPackageManager();
         mUnbundledServicePackage = context.getString(
@@ -116,12 +116,11 @@
                 int sourceIndex = findProvider(serviceInfo.packageName, serviceInfo.name);
                 if (sourceIndex < 0) {
                     TvRemoteProviderProxy providerProxy =
-                            new TvRemoteProviderProxy(mContext,
+                            new TvRemoteProviderProxy(mContext, mProvider,
                                     new ComponentName(serviceInfo.packageName, serviceInfo.name),
                                     mUserId, serviceInfo.applicationInfo.uid);
                     providerProxy.start();
                     mProviderProxies.add(targetIndex++, providerProxy);
-                    mProvider.addProvider(providerProxy);
                 } else if (sourceIndex >= targetIndex) {
                     TvRemoteProviderProxy provider = mProviderProxies.get(sourceIndex);
                     provider.start(); // restart the provider if needed
@@ -135,7 +134,6 @@
         if (targetIndex < mProviderProxies.size()) {
             for (int i = mProviderProxies.size() - 1; i >= targetIndex; i--) {
                 TvRemoteProviderProxy providerProxy = mProviderProxies.get(i);
-                mProvider.removeProvider(providerProxy);
                 mProviderProxies.remove(providerProxy);
                 providerProxy.stop();
             }
@@ -212,10 +210,4 @@
             scanPackages();
         }
     };
-
-    public interface ProviderMethods {
-        void addProvider(TvRemoteProviderProxy providerProxy);
-
-        void removeProvider(TvRemoteProviderProxy providerProxy);
-    }
 }
diff --git a/services/core/java/com/android/server/tv/TvRemoteService.java b/services/core/java/com/android/server/tv/TvRemoteService.java
index ba74791..bee6fb3 100644
--- a/services/core/java/com/android/server/tv/TvRemoteService.java
+++ b/services/core/java/com/android/server/tv/TvRemoteService.java
@@ -17,11 +17,8 @@
 package com.android.server.tv;
 
 import android.content.Context;
-import android.os.Handler;
 import android.os.IBinder;
 import android.os.RemoteException;
-import android.os.Looper;
-import android.os.Message;
 import android.util.ArrayMap;
 import android.util.Slog;
 
@@ -29,7 +26,6 @@
 import com.android.server.Watchdog;
 
 import java.io.IOException;
-import java.util.ArrayList;
 import java.util.Map;
 
 /**
@@ -44,9 +40,8 @@
     private static final boolean DEBUG = false;
     private static final boolean DEBUG_KEYS = false;
 
+    private final TvRemoteProviderWatcher mWatcher;
     private Map<IBinder, UinputBridge> mBridgeMap = new ArrayMap();
-    private Map<IBinder, TvRemoteProviderProxy> mProviderMap = new ArrayMap();
-    private ArrayList<TvRemoteProviderProxy> mProviderList = new ArrayList<>();
 
     /**
      * State guarded by mLock.
@@ -60,11 +55,10 @@
      */
     private final Object mLock = new Object();
 
-    public final UserHandler mHandler;
-
     public TvRemoteService(Context context) {
         super(context);
-        mHandler = new UserHandler(new UserProvider(TvRemoteService.this), context);
+        mWatcher = new TvRemoteProviderWatcher(context,
+                                               new UserProvider(TvRemoteService.this));
         Watchdog.getInstance().addMonitor(this);
     }
 
@@ -80,21 +74,17 @@
 
     @Override
     public void onBootPhase(int phase) {
+        // All lifecycle methods are called from the system server's main looper thread.
         if (phase == SystemService.PHASE_THIRD_PARTY_APPS_CAN_START) {
             if (DEBUG) Slog.d(TAG, "PHASE_THIRD_PARTY_APPS_CAN_START");
-            mHandler.sendEmptyMessage(UserHandler.MSG_START);
+
+            mWatcher.start(); // Also schedules the start of all providers.
         }
     }
 
-    //Outgoing calls.
-    private void informInputBridgeConnected(IBinder token) {
-        mHandler.obtainMessage(UserHandler.MSG_INPUT_BRIDGE_CONNECTED, 0, 0, token).sendToTarget();
-    }
-
-    // Incoming calls.
-    private void openInputBridgeInternalLocked(TvRemoteProviderProxy provider, final IBinder token,
-                                               String name, int width, int height,
-                                               int maxPointers) {
+    private boolean openInputBridgeInternalLocked(final IBinder token,
+                                                  String name, int width, int height,
+                                                  int maxPointers) {
         if (DEBUG) {
             Slog.d(TAG, "openInputBridgeInternalLocked(), token: " + token + ", name: " + name +
                     ", width: " + width + ", height: " + height + ", maxPointers: " + maxPointers);
@@ -104,15 +94,11 @@
             //Create a new bridge, if one does not exist already
             if (mBridgeMap.containsKey(token)) {
                 if (DEBUG) Slog.d(TAG, "RemoteBridge already exists");
-                // Respond back with success.
-                informInputBridgeConnected(token);
-                return;
+                return true;
             }
 
             UinputBridge inputBridge = new UinputBridge(token, name, width, height, maxPointers);
-
             mBridgeMap.put(token, inputBridge);
-            mProviderMap.put(token, provider);
 
             try {
                 token.linkToDeath(new IBinder.DeathRecipient() {
@@ -126,15 +112,13 @@
             } catch (RemoteException e) {
                 if (DEBUG) Slog.d(TAG, "Token is already dead");
                 closeInputBridgeInternalLocked(token);
-                return;
+                return false;
             }
-
-            // Respond back with success.
-            informInputBridgeConnected(token);
-
         } catch (IOException ioe) {
             Slog.e(TAG, "Cannot create device for " + name);
+            return false;
         }
+        return true;
     }
 
     private void closeInputBridgeInternalLocked(IBinder token) {
@@ -149,7 +133,6 @@
         }
 
         mBridgeMap.remove(token);
-        mProviderMap.remove(token);
     }
 
     private void clearInputBridgeInternalLocked(IBinder token) {
@@ -220,47 +203,7 @@
         }
     }
 
-    private final class UserHandler extends Handler {
-
-        public static final int MSG_START = 1;
-        public static final int MSG_INPUT_BRIDGE_CONNECTED = 2;
-
-        private final TvRemoteProviderWatcher mWatcher;
-        private boolean mRunning;
-
-        public UserHandler(UserProvider provider, Context context) {
-            super(Looper.getMainLooper(), null, true);
-            mWatcher = new TvRemoteProviderWatcher(context, provider, this);
-        }
-
-        @Override
-        public void handleMessage(Message msg) {
-            switch (msg.what) {
-                case MSG_START: {
-                    start();
-                    break;
-                }
-                case MSG_INPUT_BRIDGE_CONNECTED: {
-                    IBinder token = (IBinder) msg.obj;
-                    TvRemoteProviderProxy provider = mProviderMap.get(token);
-                    if (provider != null) {
-                        provider.inputBridgeConnected(token);
-                    }
-                    break;
-                }
-            }
-        }
-
-        private void start() {
-            if (!mRunning) {
-                mRunning = true;
-                mWatcher.start(); // also starts all providers
-            }
-        }
-    }
-
-    private final class UserProvider implements TvRemoteProviderWatcher.ProviderMethods,
-            TvRemoteProviderProxy.ProviderMethods {
+    private final class UserProvider implements TvRemoteProviderProxy.ProviderMethods {
 
         private final TvRemoteService mService;
 
@@ -269,8 +212,8 @@
         }
 
         @Override
-        public void openInputBridge(TvRemoteProviderProxy provider, IBinder token, String name,
-                                    int width, int height, int maxPointers) {
+        public boolean openInputBridge(TvRemoteProviderProxy provider, IBinder token, String name,
+                                       int width, int height, int maxPointers) {
             if (DEBUG) {
                 Slog.d(TAG, "openInputBridge(), token: " + token +
                         ", name: " + name + ", width: " + width +
@@ -278,10 +221,8 @@
             }
 
             synchronized (mLock) {
-                if (mProviderList.contains(provider)) {
-                    mService.openInputBridgeInternalLocked(provider, token, name, width, height,
-                            maxPointers);
-                }
+                return mService.openInputBridgeInternalLocked(token, name, width,
+                               height, maxPointers);
             }
         }
 
@@ -289,9 +230,7 @@
         public void closeInputBridge(TvRemoteProviderProxy provider, IBinder token) {
             if (DEBUG) Slog.d(TAG, "closeInputBridge(), token: " + token);
             synchronized (mLock) {
-                if (mProviderList.contains(provider)) {
                     mService.closeInputBridgeInternalLocked(token);
-                }
             }
         }
 
@@ -299,9 +238,7 @@
         public void clearInputBridge(TvRemoteProviderProxy provider, IBinder token) {
             if (DEBUG) Slog.d(TAG, "clearInputBridge(), token: " + token);
             synchronized (mLock) {
-                if (mProviderList.contains(provider)) {
                     mService.clearInputBridgeInternalLocked(token);
-                }
             }
         }
 
@@ -311,9 +248,7 @@
                 Slog.d(TAG, "sendKeyDown(), token: " + token + ", keyCode: " + keyCode);
             }
             synchronized (mLock) {
-                if (mProviderList.contains(provider)) {
                     mService.sendKeyDownInternalLocked(token, keyCode);
-                }
             }
         }
 
@@ -323,9 +258,7 @@
                 Slog.d(TAG, "sendKeyUp(), token: " + token + ", keyCode: " + keyCode);
             }
             synchronized (mLock) {
-                if (mProviderList.contains(provider)) {
                     mService.sendKeyUpInternalLocked(token, keyCode);
-                }
             }
         }
 
@@ -336,9 +269,7 @@
                 Slog.d(TAG, "sendPointerDown(), token: " + token + ", pointerId: " + pointerId);
             }
             synchronized (mLock) {
-                if (mProviderList.contains(provider)) {
                     mService.sendPointerDownInternalLocked(token, pointerId, x, y);
-                }
             }
         }
 
@@ -348,9 +279,7 @@
                 Slog.d(TAG, "sendPointerUp(), token: " + token + ", pointerId: " + pointerId);
             }
             synchronized (mLock) {
-                if (mProviderList.contains(provider)) {
                     mService.sendPointerUpInternalLocked(token, pointerId);
-                }
             }
         }
 
@@ -358,29 +287,7 @@
         public void sendPointerSync(TvRemoteProviderProxy provider, IBinder token) {
             if (DEBUG_KEYS) Slog.d(TAG, "sendPointerSync(), token: " + token);
             synchronized (mLock) {
-                if (mProviderList.contains(provider)) {
                     mService.sendPointerSyncInternalLocked(token);
-                }
-            }
-        }
-
-        @Override
-        public void addProvider(TvRemoteProviderProxy provider) {
-            if (DEBUG) Slog.d(TAG, "addProvider " + provider);
-            synchronized (mLock) {
-                provider.setProviderSink(this);
-                mProviderList.add(provider);
-                Slog.d(TAG, "provider: " + provider.toString());
-            }
-        }
-
-        @Override
-        public void removeProvider(TvRemoteProviderProxy provider) {
-            if (DEBUG) Slog.d(TAG, "removeProvider " + provider);
-            synchronized (mLock) {
-                if (mProviderList.remove(provider) == false) {
-                    Slog.e(TAG, "Unknown provider " + provider);
-                }
             }
         }
     }
diff --git a/services/core/java/com/android/server/wm/ActivityStack.java b/services/core/java/com/android/server/wm/ActivityStack.java
index 8bb37bb..7ee210e 100644
--- a/services/core/java/com/android/server/wm/ActivityStack.java
+++ b/services/core/java/com/android/server/wm/ActivityStack.java
@@ -839,11 +839,12 @@
                 // so that the divider matches and remove this logic.
                 // TODO: This is currently only called when entering split-screen while in another
                 // task, and from the tests
-                // TODO (b/78247419): Check if launcher and overview are same then move home stack
-                // instead of recents stack. Then fix the rotation animation from fullscreen to
-                // minimized mode
+                // TODO (b/78247419): Fix the rotation animation from fullscreen to minimized mode
+                final boolean isRecentsComponentHome =
+                        mService.getRecentTasks().isRecentsComponentHomeActivity(mCurrentUser);
                 final ActivityStack recentStack = display.getOrCreateStack(
-                        WINDOWING_MODE_SPLIT_SCREEN_SECONDARY, ACTIVITY_TYPE_RECENTS,
+                        WINDOWING_MODE_SPLIT_SCREEN_SECONDARY,
+                        isRecentsComponentHome ? ACTIVITY_TYPE_HOME : ACTIVITY_TYPE_RECENTS,
                         true /* onTop */);
                 recentStack.moveToFront("setWindowingMode");
                 // If task moved to docked stack - show recents if needed.
@@ -4940,6 +4941,12 @@
         }
     }
 
+
+    Rect getDefaultPictureInPictureBounds(float aspectRatio) {
+        if (getTaskStack() == null) return null;
+        return getTaskStack().getPictureInPictureBounds(aspectRatio, null /* currentStackBounds */);
+    }
+
     void animateResizePinnedStack(Rect sourceHintBounds, Rect toBounds, int animationDuration,
             boolean fromFullscreen) {
         if (!inPinnedWindowingMode()) return;
diff --git a/services/core/java/com/android/server/wm/ActivityStarter.java b/services/core/java/com/android/server/wm/ActivityStarter.java
index 4cc9f4c..47be792 100644
--- a/services/core/java/com/android/server/wm/ActivityStarter.java
+++ b/services/core/java/com/android/server/wm/ActivityStarter.java
@@ -1550,10 +1550,11 @@
 
         mService.mUgmInternal.grantUriPermissionFromIntent(mCallingUid, mStartActivity.packageName,
                 mIntent, mStartActivity.getUriPermissionsLocked(), mStartActivity.mUserId);
-        mService.getPackageManagerInternalLocked().grantEphemeralAccess(
+        mService.getPackageManagerInternalLocked().grantImplicitAccess(
                 mStartActivity.mUserId, mIntent,
-                UserHandle.getAppId(mStartActivity.info.applicationInfo.uid),
-                UserHandle.getAppId(mCallingUid));
+                UserHandle.getAppId(mCallingUid),
+                UserHandle.getAppId(mStartActivity.info.applicationInfo.uid)
+        );
         if (newTask) {
             EventLog.writeEvent(EventLogTags.AM_CREATE_TASK, mStartActivity.mUserId,
                     mStartActivity.getTaskRecord().taskId);
@@ -2341,7 +2342,12 @@
                             REPARENT_MOVE_STACK_TO_FRONT, ANIMATE, DEFER_RESUME,
                             "reparentingHome");
                     mMovedToFront = true;
+                } else if (launchStack.topTask() == null) {
+                    // The task does not need to be reparented to the launch stack. Remove the
+                    // launch stack if there is no activity in it.
+                    launchStack.remove();
                 }
+
                 mOptions = null;
 
                 // We are moving a task to the front, use starting window to hide initial drawn
@@ -2542,7 +2548,8 @@
             final boolean onTop =
                     (aOptions == null || !aOptions.getAvoidMoveToFront()) && !mLaunchTaskBehind;
             final ActivityStack stack =
-                    mRootActivityContainer.getLaunchStack(r, aOptions, task, onTop, mLaunchParams);
+                    mRootActivityContainer.getLaunchStack(r, aOptions, task, onTop, mLaunchParams,
+                            mRequest.realCallingPid, mRequest.realCallingUid);
             return stack;
         }
         // Otherwise handle adjacent launch.
@@ -2660,11 +2667,24 @@
         return this;
     }
 
+    /**
+     * Sets the pid of the caller who originally started the activity.
+     *
+     * Normally, the pid/uid would be the calling pid from the binder call.
+     * However, in case of a {@link PendingIntent}, the pid/uid pair of the caller is considered
+     * the original entity that created the pending intent, in contrast to setRealCallingPid/Uid,
+     * which represents the entity who invoked pending intent via {@link PendingIntent#send}.
+     */
     ActivityStarter setCallingPid(int pid) {
         mRequest.callingPid = pid;
         return this;
     }
 
+    /**
+     * Sets the uid of the caller who originally started the activity.
+     *
+     * @see #setCallingPid
+     */
     ActivityStarter setCallingUid(int uid) {
         mRequest.callingUid = uid;
         return this;
@@ -2675,11 +2695,25 @@
         return this;
     }
 
+    /**
+     * Sets the pid of the caller who requested to launch the activity.
+     *
+     * The pid/uid represents the caller who launches the activity in this request.
+     * It will almost same as setCallingPid/Uid except when processing {@link PendingIntent}:
+     * the pid/uid will be the caller who called {@link PendingIntent#send()}.
+     *
+     * @see #setCallingPid
+     */
     ActivityStarter setRealCallingPid(int pid) {
         mRequest.realCallingPid = pid;
         return this;
     }
 
+    /**
+     * Sets the uid of the caller who requested to launch the activity.
+     *
+     * @see #setRealCallingPid
+     */
     ActivityStarter setRealCallingUid(int uid) {
         mRequest.realCallingUid = uid;
         return this;
diff --git a/services/core/java/com/android/server/wm/AppWindowToken.java b/services/core/java/com/android/server/wm/AppWindowToken.java
index 71f02e8..93b8f00 100644
--- a/services/core/java/com/android/server/wm/AppWindowToken.java
+++ b/services/core/java/com/android/server/wm/AppWindowToken.java
@@ -1021,7 +1021,7 @@
         if (DEBUG_ADD_REMOVE) Slog.v(TAG, "notifyAppStopped: " + this);
         mAppStopped = true;
         // Reset the last saved PiP snap fraction on app stop.
-        mDisplayContent.mPinnedStackControllerLocked.resetReentrySnapFraction(mActivityComponent);
+        mDisplayContent.mPinnedStackControllerLocked.resetReentrySnapFraction(this);
         destroySurfaces();
         // Remove any starting window that was added for this app if they are still around.
         removeStartingWindow();
@@ -1705,7 +1705,10 @@
             return;
         }
 
-        if (prevWinMode == WINDOWING_MODE_PINNED && winMode != WINDOWING_MODE_UNDEFINED
+        if (prevWinMode != WINDOWING_MODE_UNDEFINED && winMode == WINDOWING_MODE_PINNED) {
+            // Entering PiP from fullscreen, reset the snap fraction
+            mDisplayContent.mPinnedStackControllerLocked.resetReentrySnapFraction(this);
+        } else if (prevWinMode == WINDOWING_MODE_PINNED && winMode != WINDOWING_MODE_UNDEFINED
                 && !isHidden()) {
             // Leaving PiP to fullscreen, save the snap fraction based on the pre-animation bounds
             // for the next re-entry into PiP (assuming the activity is not hidden or destroyed)
@@ -1723,8 +1726,8 @@
                     stackBounds = mTmpRect;
                     pinnedStack.getBounds(stackBounds);
                 }
-                mDisplayContent.mPinnedStackControllerLocked.saveReentrySnapFraction(
-                        mActivityComponent, stackBounds);
+                mDisplayContent.mPinnedStackControllerLocked.saveReentrySnapFraction(this,
+                        stackBounds);
             }
         } else if (shouldStartChangeTransition(prevWinMode, winMode)) {
             initializeChangeTransition(mTmpPrevBounds);
@@ -2500,14 +2503,18 @@
 
     @Override
     public SurfaceControl getAnimationLeashParent() {
-        // All normal app transitions take place in an animation layer which is below the pinned
-        // stack but may be above the parent stacks of the given animating apps.
         // For transitions in the pinned stack (menu activity) we just let them occur as a child
         // of the pinned stack.
-        if (!inPinnedWindowingMode()) {
-            return getAppAnimationLayer();
-        } else {
+        // All normal app transitions take place in an animation layer which is below the pinned
+        // stack but may be above the parent stacks of the given animating apps by default. When
+        // a new hierarchical animation is enabled, we just let them occur as a child of the parent
+        // stack, i.e. the hierarchy of the surfaces is unchanged.
+        if (inPinnedWindowingMode()) {
             return getStack().getSurfaceControl();
+        } else if (WindowManagerService.sHierarchicalAnimations) {
+            return super.getAnimationLeashParent();
+        } else {
+            return getAppAnimationLayer();
         }
     }
 
diff --git a/services/core/java/com/android/server/wm/PinnedStackController.java b/services/core/java/com/android/server/wm/PinnedStackController.java
index 8e57fec..ef0049b 100644
--- a/services/core/java/com/android/server/wm/PinnedStackController.java
+++ b/services/core/java/com/android/server/wm/PinnedStackController.java
@@ -27,7 +27,6 @@
 
 import android.annotation.NonNull;
 import android.app.RemoteAction;
-import android.content.ComponentName;
 import android.content.pm.ParceledListSlice;
 import android.content.res.Resources;
 import android.graphics.Point;
@@ -51,6 +50,7 @@
 import com.android.server.UiThread;
 
 import java.io.PrintWriter;
+import java.lang.ref.WeakReference;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -74,7 +74,7 @@
 
     private static final String TAG = TAG_WITH_CLASS_NAME ? "PinnedStackController" : TAG_WM;
 
-    private static final float INVALID_SNAP_FRACTION = -1f;
+    public static final float INVALID_SNAP_FRACTION = -1f;
     private final WindowManagerService mService;
     private final DisplayContent mDisplayContent;
     private final Handler mHandler = UiThread.getHandler();
@@ -106,6 +106,9 @@
     private int mDefaultStackGravity;
     private float mDefaultAspectRatio;
     private Point mScreenEdgeInsets;
+    private int mCurrentMinSize;
+    private float mReentrySnapFraction = INVALID_SNAP_FRACTION;
+    private WeakReference<AppWindowToken> mLastPipActivity = null;
 
     // The aspect ratio bounds of the PIP.
     private float mMinAspectRatio;
@@ -115,6 +118,7 @@
     private final DisplayMetrics mTmpMetrics = new DisplayMetrics();
     private final Rect mTmpInsets = new Rect();
     private final Rect mTmpRect = new Rect();
+    private final Rect mTmpAnimatingBoundsRect = new Rect();
     private final Point mTmpDisplaySize = new Point();
 
 
@@ -132,19 +136,16 @@
         }
 
         @Override
-        public int getDisplayRotation() {
-            synchronized (mService.mGlobalLock) {
-                return mDisplayInfo.rotation;
-            }
+        public void setMinEdgeSize(int minEdgeSize) {
+            mHandler.post(() -> {
+                mCurrentMinSize = Math.max(mDefaultMinSize, minEdgeSize);
+            });
         }
 
         @Override
-        public void startAnimation(Rect destinationBounds, Rect sourceRectHint,
-                int animationDuration) {
+        public int getDisplayRotation() {
             synchronized (mService.mGlobalLock) {
-                final TaskStack pinnedStack = mDisplayContent.getPinnedStack();
-                pinnedStack.animateResizePinnedStack(destinationBounds,
-                        sourceRectHint, animationDuration, true /* fromFullscreen */);
+                return mDisplayInfo.rotation;
             }
         }
     }
@@ -187,6 +188,7 @@
         final Resources res = mService.mContext.getResources();
         mDefaultMinSize = res.getDimensionPixelSize(
                 com.android.internal.R.dimen.default_minimal_size_pip_resizable_task);
+        mCurrentMinSize = mDefaultMinSize;
         mDefaultAspectRatio = res.getFloat(
                 com.android.internal.R.dimen.config_pictureInPictureDefaultAspectRatio);
         final String screenEdgeInsetsDpString = res.getString(
@@ -214,7 +216,6 @@
             listener.asBinder().linkToDeath(mPinnedStackListenerDeathHandler, 0);
             listener.onListenerRegistered(mCallbacks);
             mPinnedStackListener = listener;
-            notifyDisplayInfoChanged(mDisplayInfo);
             notifyImeVisibilityChanged(mIsImeShowing, mImeHeight);
             notifyShelfVisibilityChanged(mIsShelfShowing, mShelfHeight);
             // The movement bounds notification needs to be sent before the minimized state, since
@@ -237,34 +238,58 @@
     }
 
     /**
+     * Returns the current bounds (or the default bounds if there are no current bounds) with the
+     * specified aspect ratio.
+     */
+    Rect transformBoundsToAspectRatio(Rect stackBounds, float aspectRatio,
+            boolean useCurrentMinEdgeSize) {
+        // Save the snap fraction, calculate the aspect ratio based on screen size
+        final float snapFraction = mSnapAlgorithm.getSnapFraction(stackBounds,
+                getMovementBounds(stackBounds));
+
+        final int minEdgeSize = useCurrentMinEdgeSize ? mCurrentMinSize : mDefaultMinSize;
+        final Size size = mSnapAlgorithm.getSizeForAspectRatio(aspectRatio, minEdgeSize,
+                mDisplayInfo.logicalWidth, mDisplayInfo.logicalHeight);
+        final int left = (int) (stackBounds.centerX() - size.getWidth() / 2f);
+        final int top = (int) (stackBounds.centerY() - size.getHeight() / 2f);
+        stackBounds.set(left, top, left + size.getWidth(), top + size.getHeight());
+        mSnapAlgorithm.applySnapFraction(stackBounds, getMovementBounds(stackBounds), snapFraction);
+        if (mIsMinimized) {
+            applyMinimizedOffset(stackBounds, getMovementBounds(stackBounds));
+        }
+        return stackBounds;
+    }
+
+    /**
      * Saves the current snap fraction for re-entry of the current activity into PiP.
      */
-    void saveReentrySnapFraction(final ComponentName componentName, final Rect stackBounds) {
-        if (mPinnedStackListener == null) return;
-        try {
-            mPinnedStackListener.onSaveReentrySnapFraction(componentName, stackBounds);
-        } catch (RemoteException e) {
-            Slog.e(TAG_WM, "Error delivering save reentry fraction event.", e);
-        }
+    void saveReentrySnapFraction(final AppWindowToken token, final Rect stackBounds) {
+        mReentrySnapFraction = getSnapFraction(stackBounds);
+        mLastPipActivity = new WeakReference<>(token);
     }
 
     /**
      * Resets the last saved snap fraction so that the default bounds will be returned.
      */
-    void resetReentrySnapFraction(ComponentName componentName) {
-        if (mPinnedStackListener == null) return;
-        try {
-            mPinnedStackListener.onResetReentrySnapFraction(componentName);
-        } catch (RemoteException e) {
-            Slog.e(TAG_WM, "Error delivering reset reentry fraction event.", e);
+    void resetReentrySnapFraction(AppWindowToken token) {
+        if (mLastPipActivity != null && mLastPipActivity.get() == token) {
+            mReentrySnapFraction = INVALID_SNAP_FRACTION;
+            mLastPipActivity = null;
         }
     }
 
     /**
+     * @return the default bounds to show the PIP when there is no active PIP.
+     */
+    Rect getDefaultOrLastSavedBounds() {
+        return getDefaultBounds(mReentrySnapFraction);
+    }
+
+    /**
      * @return the default bounds to show the PIP, if a {@param snapFraction} is provided, then it
      * will apply the default bounds to the provided snap fraction.
      */
-    private Rect getDefaultBounds(float snapFraction) {
+    Rect getDefaultBounds(float snapFraction) {
         synchronized (mService.mGlobalLock) {
             final Rect insetBounds = new Rect();
             getInsetBounds(insetBounds);
@@ -286,18 +311,13 @@
         }
     }
 
-    private void setDisplayInfo(DisplayInfo displayInfo) {
-        mDisplayInfo.copyFrom(displayInfo);
-        notifyDisplayInfoChanged(mDisplayInfo);
-    }
-
     /**
      * In the case where the display rotation is changed but there is no stack, we can't depend on
      * onTaskStackBoundsChanged() to be called.  But we still should update our known display info
      * with the new state so that we can update SystemUI.
      */
     synchronized void onDisplayInfoChanged(DisplayInfo displayInfo) {
-        setDisplayInfo(displayInfo);
+        mDisplayInfo.copyFrom(displayInfo);
         notifyMovementBoundsChanged(false /* fromImeAdjustment */, false /* fromShelfAdjustment */);
     }
 
@@ -315,7 +335,7 @@
             } else if (targetBounds.isEmpty()) {
                 // The stack is null, we are just initializing the stack, so just store the display
                 // info and ignore
-                setDisplayInfo(displayInfo);
+                mDisplayInfo.copyFrom(displayInfo);
                 outBounds.setEmpty();
                 return false;
             }
@@ -325,8 +345,7 @@
 
             // Calculate the snap fraction of the current stack along the old movement bounds
             final float snapFraction = getSnapFraction(postChangeStackBounds);
-
-            setDisplayInfo(displayInfo);
+            mDisplayInfo.copyFrom(displayInfo);
 
             // Calculate the stack bounds in the new orientation to the same same fraction along the
             // rotated movement bounds.
@@ -387,11 +406,8 @@
     void setAspectRatio(float aspectRatio) {
         if (Float.compare(mAspectRatio, aspectRatio) != 0) {
             mAspectRatio = aspectRatio;
-            notifyAspectRatioChanged(aspectRatio);
             notifyMovementBoundsChanged(false /* fromImeAdjustment */,
                     false /* fromShelfAdjustment */);
-            notifyPrepareAnimation(null /* sourceHintRect */, aspectRatio,
-                    null /* stackBounds */);
         }
     }
 
@@ -413,10 +429,6 @@
         notifyActionsChanged(mActions);
     }
 
-    void prepareAnimation(Rect sourceRectHint, float aspectRatio, Rect stackBounds) {
-        notifyPrepareAnimation(sourceRectHint, aspectRatio, stackBounds);
-    }
-
     private boolean isSameDimensionAndRotation(@NonNull DisplayInfo display1,
             @NonNull DisplayInfo display2) {
         Preconditions.checkNotNull(display1);
@@ -449,15 +461,6 @@
         }
     }
 
-    private void notifyAspectRatioChanged(float aspectRatio) {
-        if (mPinnedStackListener == null) return;
-        try {
-            mPinnedStackListener.onAspectRatioChanged(aspectRatio);
-        } catch (RemoteException e) {
-            Slog.e(TAG_WM, "Error delivering aspect ratio changed event.", e);
-        }
-    }
-
     /**
      * Notifies listeners that the PIP minimized state has changed.
      */
@@ -494,13 +497,23 @@
                 return;
             }
             try {
-                final Rect animatingBounds = new Rect();
+                final Rect insetBounds = new Rect();
+                getInsetBounds(insetBounds);
+                final Rect normalBounds = getDefaultBounds(INVALID_SNAP_FRACTION);
+                if (isValidPictureInPictureAspectRatio(mAspectRatio)) {
+                    transformBoundsToAspectRatio(normalBounds, mAspectRatio,
+                            false /* useCurrentMinEdgeSize */);
+                }
+                final Rect animatingBounds = mTmpAnimatingBoundsRect;
                 final TaskStack pinnedStack = mDisplayContent.getPinnedStack();
                 if (pinnedStack != null) {
                     pinnedStack.getAnimationOrCurrentBounds(animatingBounds);
+                } else {
+                    animatingBounds.set(normalBounds);
                 }
-                mPinnedStackListener.onMovementBoundsChanged(animatingBounds,
-                        fromImeAdjustment, fromShelfAdjustment);
+                mPinnedStackListener.onMovementBoundsChanged(insetBounds, normalBounds,
+                        animatingBounds, fromImeAdjustment, fromShelfAdjustment,
+                        mDisplayInfo.rotation);
             } catch (RemoteException e) {
                 Slog.e(TAG_WM, "Error delivering actions changed event.", e);
             }
@@ -508,30 +521,6 @@
     }
 
     /**
-     * Notifies listeners that the PIP animation is about to happen.
-     */
-    private void notifyDisplayInfoChanged(DisplayInfo displayInfo) {
-        if (mPinnedStackListener == null) return;
-        try {
-            mPinnedStackListener.onDisplayInfoChanged(displayInfo);
-        } catch (RemoteException e) {
-            Slog.e(TAG_WM, "Error delivering DisplayInfo changed event.", e);
-        }
-    }
-
-    /**
-     * Notifies listeners that the PIP animation is about to happen.
-     */
-    private void notifyPrepareAnimation(Rect sourceRectHint, float aspectRatio, Rect stackBounds) {
-        if (mPinnedStackListener == null) return;
-        try {
-            mPinnedStackListener.onPrepareAnimation(sourceRectHint, aspectRatio, stackBounds);
-        } catch (RemoteException e) {
-            Slog.e(TAG_WM, "Error delivering prepare animation event.", e);
-        }
-    }
-
-    /**
      * @return the bounds on the screen that the PIP can be visible in.
      */
     private void getInsetBounds(Rect outRect) {
@@ -615,6 +604,7 @@
         pw.println(prefix + "  mImeHeight=" + mImeHeight);
         pw.println(prefix + "  mIsShelfShowing=" + mIsShelfShowing);
         pw.println(prefix + "  mShelfHeight=" + mShelfHeight);
+        pw.println(prefix + "  mReentrySnapFraction=" + mReentrySnapFraction);
         pw.println(prefix + "  mIsMinimized=" + mIsMinimized);
         pw.println(prefix + "  mAspectRatio=" + mAspectRatio);
         pw.println(prefix + "  mMinAspectRatio=" + mMinAspectRatio);
diff --git a/services/core/java/com/android/server/wm/RootActivityContainer.java b/services/core/java/com/android/server/wm/RootActivityContainer.java
index d9e30a2..6d46716 100644
--- a/services/core/java/com/android/server/wm/RootActivityContainer.java
+++ b/services/core/java/com/android/server/wm/RootActivityContainer.java
@@ -193,6 +193,9 @@
     /** Set when a power hint has started, but not ended. */
     private boolean mPowerHintSent;
 
+    /** Used to keep ensureActivitiesVisible() from being entered recursively. */
+    private boolean mInEnsureActivitiesVisible = false;
+
     // The default minimal size that will be used if the activity doesn't specify its minimal size.
     // It will be calculated when the default display gets added.
     int mDefaultMinSizeOfResizeableTaskDp = -1;
@@ -805,8 +808,14 @@
      */
     void ensureActivitiesVisible(ActivityRecord starting, int configChanges,
             boolean preserveWindows, boolean notifyClients) {
-        mStackSupervisor.getKeyguardController().beginActivityVisibilityUpdate();
+        if (mInEnsureActivitiesVisible) {
+            // Don't do recursive work.
+            return;
+        }
+        mInEnsureActivitiesVisible = true;
+
         try {
+            mStackSupervisor.getKeyguardController().beginActivityVisibilityUpdate();
             // First the front stacks. In case any are not fullscreen and are in front of home.
             for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
                 final ActivityDisplay display = mActivityDisplays.get(displayNdx);
@@ -815,6 +824,7 @@
             }
         } finally {
             mStackSupervisor.getKeyguardController().endActivityVisibilityUpdate();
+            mInEnsureActivitiesVisible = false;
         }
     }
 
@@ -959,6 +969,10 @@
         // Need to make sure the pinned stack exist so we can resize it below...
         stack = display.getOrCreateStack(WINDOWING_MODE_PINNED, r.getActivityType(), ON_TOP);
 
+        // Calculate the target bounds here before the task is reparented back into pinned windowing
+        // mode (which will reset the saved bounds)
+        final Rect destBounds = stack.getDefaultPictureInPictureBounds(aspectRatio);
+
         try {
             final TaskRecord task = r.getTaskRecord();
             // Resize the pinned stack to match the current size of the task the activity we are
@@ -997,14 +1011,9 @@
             mService.continueWindowLayout();
         }
 
-        // Notify the pinned stack controller to prepare the PiP animation, expect callback
-        // delivered from SystemUI to WM to start the animation.
-        final PinnedStackController pinnedStackController =
-                display.mDisplayContent.getPinnedStackController();
-        pinnedStackController.prepareAnimation(sourceHintBounds, aspectRatio,
-                null /* stackBounds */);
+        stack.animateResizePinnedStack(sourceHintBounds, destBounds, -1 /* animationDuration */,
+                true /* fromFullscreen */);
 
-        // TODO: revisit the following statement after the animation is moved from WM to SysUI.
         // Update the visibility of all activities after the they have been reparented to the new
         // stack.  This MUST run after the animation above is scheduled to ensure that the windows
         // drawn signal is scheduled after the bounds animation start call on the bounds animator
@@ -1615,7 +1624,8 @@
 
     <T extends ActivityStack> T getLaunchStack(@Nullable ActivityRecord r,
             @Nullable ActivityOptions options, @Nullable TaskRecord candidateTask, boolean onTop) {
-        return getLaunchStack(r, options, candidateTask, onTop, null /* launchParams */);
+        return getLaunchStack(r, options, candidateTask, onTop, null /* launchParams */,
+                -1 /* no realCallingPid */, -1 /* no realCallingUid */);
     }
 
     /**
@@ -1624,13 +1634,16 @@
      * @param r The activity we are trying to launch. Can be null.
      * @param options The activity options used to the launch. Can be null.
      * @param candidateTask The possible task the activity might be launched in. Can be null.
-     * @params launchParams The resolved launch params to use.
+     * @param launchParams The resolved launch params to use.
+     * @param realCallingPid The pid from {@link ActivityStarter#setRealCallingPid}
+     * @param realCallingUid The uid from {@link ActivityStarter#setRealCallingUid}
      *
      * @return The stack to use for the launch or INVALID_STACK_ID.
      */
     <T extends ActivityStack> T getLaunchStack(@Nullable ActivityRecord r,
             @Nullable ActivityOptions options, @Nullable TaskRecord candidateTask, boolean onTop,
-            @Nullable LaunchParamsController.LaunchParams launchParams) {
+            @Nullable LaunchParamsController.LaunchParams launchParams, int realCallingPid,
+            int realCallingUid) {
         int taskId = INVALID_TASK_ID;
         int displayId = INVALID_DISPLAY;
         //Rect bounds = null;
@@ -1661,7 +1674,15 @@
         if (launchParams != null && launchParams.mPreferredDisplayId != INVALID_DISPLAY) {
             displayId = launchParams.mPreferredDisplayId;
         }
-        if (displayId != INVALID_DISPLAY && canLaunchOnDisplay(r, displayId)) {
+        final boolean canLaunchOnDisplayFromStartRequest =
+                realCallingPid != 0 && realCallingUid > 0 && r != null
+                        && mStackSupervisor.canPlaceEntityOnDisplay(displayId, realCallingPid,
+                        realCallingUid, r.info);
+        // Checking if the activity's launch caller, or the realCallerId of the activity from
+        // start request (i.e. entity that invokes PendingIntent) is allowed to launch on the
+        // display.
+        if (displayId != INVALID_DISPLAY && (canLaunchOnDisplay(r, displayId)
+                || canLaunchOnDisplayFromStartRequest)) {
             if (r != null) {
                 stack = (T) getValidLaunchStackOnDisplay(displayId, r, candidateTask, options,
                         launchParams);
diff --git a/services/core/java/com/android/server/wm/Task.java b/services/core/java/com/android/server/wm/Task.java
index 3a2eb57..762066c 100644
--- a/services/core/java/com/android/server/wm/Task.java
+++ b/services/core/java/com/android/server/wm/Task.java
@@ -613,6 +613,9 @@
 
     @Override
     public SurfaceControl getAnimationLeashParent() {
+        if (!WindowManagerService.sHierarchicalAnimations) {
+            return super.getAnimationLeashParent();
+        }
         // Currently, only the recents animation will create animation leashes for tasks. In this
         // case, reparent the task to the home animation layer while it is being animated to allow
         // the home activity to reorder the app windows relative to its own.
diff --git a/services/core/java/com/android/server/wm/TaskStack.java b/services/core/java/com/android/server/wm/TaskStack.java
index 58542e5..239bd00 100644
--- a/services/core/java/com/android/server/wm/TaskStack.java
+++ b/services/core/java/com/android/server/wm/TaskStack.java
@@ -1661,6 +1661,40 @@
     }
 
     /**
+     * @return the current stack bounds transformed to the given {@param aspectRatio}. If
+     *         the default bounds is {@code null}, then the {@param aspectRatio} is applied to the
+     *         default bounds.
+     */
+    Rect getPictureInPictureBounds(float aspectRatio, Rect stackBounds) {
+        if (!mWmService.mAtmService.mSupportsPictureInPicture) {
+            return null;
+        }
+
+        final DisplayContent displayContent = getDisplayContent();
+        if (displayContent == null) {
+            return null;
+        }
+
+        if (!inPinnedWindowingMode()) {
+            return null;
+        }
+
+        final PinnedStackController pinnedStackController =
+                displayContent.getPinnedStackController();
+        if (stackBounds == null) {
+            // Calculate the aspect ratio bounds from the default bounds
+            stackBounds = pinnedStackController.getDefaultOrLastSavedBounds();
+        }
+
+        if (pinnedStackController.isValidPictureInPictureAspectRatio(aspectRatio)) {
+            return pinnedStackController.transformBoundsToAspectRatio(stackBounds, aspectRatio,
+                    true /* useCurrentMinEdgeSize */);
+        } else {
+            return stackBounds;
+        }
+    }
+
+    /**
      * Animates the pinned stack.
      */
     void animateResizePinnedStack(Rect toBounds, Rect sourceHintBounds,
@@ -1737,11 +1771,6 @@
             return;
         }
 
-        final DisplayContent displayContent = getDisplayContent();
-        if (displayContent == null) {
-            return;
-        }
-
         if (!inPinnedWindowingMode()) {
             return;
         }
@@ -1752,10 +1781,13 @@
         if (Float.compare(aspectRatio, pinnedStackController.getAspectRatio()) == 0) {
             return;
         }
-
-        // Notify the pinned stack controller about aspect ratio change.
-        // This would result a callback delivered from SystemUI to WM to start animation,
-        // if the bounds are ought to be altered due to aspect ratio change.
+        getAnimationOrCurrentBounds(mTmpFromBounds);
+        mTmpToBounds.set(mTmpFromBounds);
+        getPictureInPictureBounds(aspectRatio, mTmpToBounds);
+        if (!mTmpToBounds.equals(mTmpFromBounds)) {
+            animateResizePinnedStack(mTmpToBounds, null /* sourceHintBounds */,
+                    -1 /* duration */, false /* fromFullscreen */);
+        }
         pinnedStackController.setAspectRatio(
                 pinnedStackController.isValidPictureInPictureAspectRatio(aspectRatio)
                         ? aspectRatio : -1f);
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index 607a013..1ebaa5d 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -375,6 +375,22 @@
     // trying to apply a new one.
     private static final boolean ALWAYS_KEEP_CURRENT = true;
 
+    /**
+     * If set, new app transition framework which supports setting animation on any element
+     * in a surface is used.
+     * <p>
+     * Only set this to non-zero once the new app transition framework is productionalized.
+     * </p>
+     */
+    private static final String HIERARCHICAL_ANIMATIONS_PROPERTY =
+            "persist.wm.hierarchical_animations";
+
+    /**
+     * @see #HIERARCHICAL_ANIMATIONS_PROPERTY
+     */
+    static boolean sHierarchicalAnimations =
+            SystemProperties.getBoolean(HIERARCHICAL_ANIMATIONS_PROPERTY, false);
+
     // Enums for animation scale update types.
     @Retention(RetentionPolicy.SOURCE)
     @IntDef({WINDOW_ANIMATION_SCALE, TRANSITION_ANIMATION_SCALE, ANIMATION_DURATION_SCALE})
diff --git a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
index 478bc88..704c808 100644
--- a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
+++ b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
@@ -1113,142 +1113,107 @@
             info.writePoliciesToXml(out);
             out.endTag(null, TAG_POLICIES);
             if (minimumPasswordMetrics.quality != PASSWORD_QUALITY_UNSPECIFIED) {
-                out.startTag(null, TAG_PASSWORD_QUALITY);
-                out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.quality));
-                out.endTag(null, TAG_PASSWORD_QUALITY);
+                writeAttributeValueToXml(
+                        out, TAG_PASSWORD_QUALITY, minimumPasswordMetrics.quality);
                 if (minimumPasswordMetrics.length != DEF_MINIMUM_PASSWORD_LENGTH) {
-                    out.startTag(null, TAG_MIN_PASSWORD_LENGTH);
-                    out.attribute(
-                            null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.length));
-                    out.endTag(null, TAG_MIN_PASSWORD_LENGTH);
-                }
-                if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) {
-                    out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH);
-                    out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength));
-                    out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH);
+                    writeAttributeValueToXml(
+                            out, TAG_MIN_PASSWORD_LENGTH, minimumPasswordMetrics.length);
                 }
                 if (minimumPasswordMetrics.upperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) {
-                    out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE);
-                    out.attribute(
-                            null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.upperCase));
-                    out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE);
+                    writeAttributeValueToXml(
+                            out, TAG_MIN_PASSWORD_UPPERCASE, minimumPasswordMetrics.upperCase);
                 }
                 if (minimumPasswordMetrics.lowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) {
-                    out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE);
-                    out.attribute(
-                            null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.lowerCase));
-                    out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE);
+                    writeAttributeValueToXml(
+                            out, TAG_MIN_PASSWORD_LOWERCASE, minimumPasswordMetrics.lowerCase);
                 }
                 if (minimumPasswordMetrics.letters != DEF_MINIMUM_PASSWORD_LETTERS) {
-                    out.startTag(null, TAG_MIN_PASSWORD_LETTERS);
-                    out.attribute(
-                            null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.letters));
-                    out.endTag(null, TAG_MIN_PASSWORD_LETTERS);
+                    writeAttributeValueToXml(
+                            out, TAG_MIN_PASSWORD_LETTERS, minimumPasswordMetrics.letters);
                 }
                 if (minimumPasswordMetrics.numeric != DEF_MINIMUM_PASSWORD_NUMERIC) {
-                    out.startTag(null, TAG_MIN_PASSWORD_NUMERIC);
-                    out.attribute(
-                            null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.numeric));
-                    out.endTag(null, TAG_MIN_PASSWORD_NUMERIC);
+                    writeAttributeValueToXml(
+                            out, TAG_MIN_PASSWORD_NUMERIC, minimumPasswordMetrics.numeric);
                 }
                 if (minimumPasswordMetrics.symbols != DEF_MINIMUM_PASSWORD_SYMBOLS) {
-                    out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS);
-                    out.attribute(
-                            null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.symbols));
-                    out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS);
+                    writeAttributeValueToXml(
+                            out, TAG_MIN_PASSWORD_SYMBOLS, minimumPasswordMetrics.symbols);
                 }
                 if (minimumPasswordMetrics.nonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) {
-                    out.startTag(null, TAG_MIN_PASSWORD_NONLETTER);
-                    out.attribute(
-                            null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.nonLetter));
-                    out.endTag(null, TAG_MIN_PASSWORD_NONLETTER);
+                    writeAttributeValueToXml(
+                            out, TAG_MIN_PASSWORD_NONLETTER, minimumPasswordMetrics.nonLetter);
                 }
             }
+            if (passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) {
+                writeAttributeValueToXml(
+                        out, TAG_PASSWORD_HISTORY_LENGTH, passwordHistoryLength);
+            }
             if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) {
-                out.startTag(null, TAG_MAX_TIME_TO_UNLOCK);
-                out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock));
-                out.endTag(null, TAG_MAX_TIME_TO_UNLOCK);
+                writeAttributeValueToXml(
+                        out, TAG_MAX_TIME_TO_UNLOCK, maximumTimeToUnlock);
             }
             if (strongAuthUnlockTimeout != DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) {
-                out.startTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT);
-                out.attribute(null, ATTR_VALUE, Long.toString(strongAuthUnlockTimeout));
-                out.endTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT);
+                writeAttributeValueToXml(
+                        out, TAG_STRONG_AUTH_UNLOCK_TIMEOUT, strongAuthUnlockTimeout);
             }
             if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) {
-                out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE);
-                out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe));
-                out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE);
+                writeAttributeValueToXml(
+                        out, TAG_MAX_FAILED_PASSWORD_WIPE, maximumFailedPasswordsForWipe);
             }
             if (specifiesGlobalProxy) {
-                out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY);
-                out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy));
-                out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY);
+                writeAttributeValueToXml(
+                        out, TAG_SPECIFIES_GLOBAL_PROXY, specifiesGlobalProxy);
                 if (globalProxySpec != null) {
-                    out.startTag(null, TAG_GLOBAL_PROXY_SPEC);
-                    out.attribute(null, ATTR_VALUE, globalProxySpec);
-                    out.endTag(null, TAG_GLOBAL_PROXY_SPEC);
+                    writeAttributeValueToXml(out, TAG_GLOBAL_PROXY_SPEC, globalProxySpec);
                 }
                 if (globalProxyExclusionList != null) {
-                    out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST);
-                    out.attribute(null, ATTR_VALUE, globalProxyExclusionList);
-                    out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST);
+                    writeAttributeValueToXml(
+                            out, TAG_GLOBAL_PROXY_EXCLUSION_LIST, globalProxyExclusionList);
                 }
             }
             if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) {
-                out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT);
-                out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout));
-                out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT);
+                writeAttributeValueToXml(
+                        out, TAG_PASSWORD_EXPIRATION_TIMEOUT, passwordExpirationTimeout);
             }
             if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) {
-                out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE);
-                out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate));
-                out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE);
+                writeAttributeValueToXml(
+                        out, TAG_PASSWORD_EXPIRATION_DATE, passwordExpirationDate);
             }
             if (encryptionRequested) {
-                out.startTag(null, TAG_ENCRYPTION_REQUESTED);
-                out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested));
-                out.endTag(null, TAG_ENCRYPTION_REQUESTED);
+                writeAttributeValueToXml(
+                        out, TAG_ENCRYPTION_REQUESTED, encryptionRequested);
             }
             if (testOnlyAdmin) {
-                out.startTag(null, TAG_TEST_ONLY_ADMIN);
-                out.attribute(null, ATTR_VALUE, Boolean.toString(testOnlyAdmin));
-                out.endTag(null, TAG_TEST_ONLY_ADMIN);
+                writeAttributeValueToXml(
+                        out, TAG_TEST_ONLY_ADMIN, testOnlyAdmin);
             }
             if (disableCamera) {
-                out.startTag(null, TAG_DISABLE_CAMERA);
-                out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera));
-                out.endTag(null, TAG_DISABLE_CAMERA);
+                writeAttributeValueToXml(
+                        out, TAG_DISABLE_CAMERA, disableCamera);
             }
             if (disableCallerId) {
-                out.startTag(null, TAG_DISABLE_CALLER_ID);
-                out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId));
-                out.endTag(null, TAG_DISABLE_CALLER_ID);
+                writeAttributeValueToXml(
+                        out, TAG_DISABLE_CALLER_ID, disableCallerId);
             }
             if (disableContactsSearch) {
-                out.startTag(null, TAG_DISABLE_CONTACTS_SEARCH);
-                out.attribute(null, ATTR_VALUE, Boolean.toString(disableContactsSearch));
-                out.endTag(null, TAG_DISABLE_CONTACTS_SEARCH);
+                writeAttributeValueToXml(
+                        out, TAG_DISABLE_CONTACTS_SEARCH, disableContactsSearch);
             }
             if (!disableBluetoothContactSharing) {
-                out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING);
-                out.attribute(null, ATTR_VALUE,
-                        Boolean.toString(disableBluetoothContactSharing));
-                out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING);
+                writeAttributeValueToXml(
+                        out, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING, disableBluetoothContactSharing);
             }
             if (disableScreenCapture) {
-                out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE);
-                out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture));
-                out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE);
+                writeAttributeValueToXml(
+                        out, TAG_DISABLE_SCREEN_CAPTURE, disableScreenCapture);
             }
             if (requireAutoTime) {
-                out.startTag(null, TAG_REQUIRE_AUTO_TIME);
-                out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime));
-                out.endTag(null, TAG_REQUIRE_AUTO_TIME);
+                writeAttributeValueToXml(
+                        out, TAG_REQUIRE_AUTO_TIME, requireAutoTime);
             }
             if (forceEphemeralUsers) {
-                out.startTag(null, TAG_FORCE_EPHEMERAL_USERS);
-                out.attribute(null, ATTR_VALUE, Boolean.toString(forceEphemeralUsers));
-                out.endTag(null, TAG_FORCE_EPHEMERAL_USERS);
+                writeAttributeValueToXml(
+                        out, TAG_FORCE_EPHEMERAL_USERS, forceEphemeralUsers);
             }
             if (isNetworkLoggingEnabled) {
                 out.startTag(null, TAG_IS_NETWORK_LOGGING_ENABLED);
@@ -1260,15 +1225,13 @@
                 out.endTag(null, TAG_IS_NETWORK_LOGGING_ENABLED);
             }
             if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) {
-                out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES);
-                out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures));
-                out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES);
+                writeAttributeValueToXml(
+                        out, TAG_DISABLE_KEYGUARD_FEATURES, disabledKeyguardFeatures);
             }
             if (!accountTypesWithManagementDisabled.isEmpty()) {
-                out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT);
                 writeAttributeValuesToXml(
-                        out, TAG_ACCOUNT_TYPE, accountTypesWithManagementDisabled);
-                out.endTag(null,  TAG_DISABLE_ACCOUNT_MANAGEMENT);
+                        out, TAG_DISABLE_ACCOUNT_MANAGEMENT, TAG_ACCOUNT_TYPE,
+                        accountTypesWithManagementDisabled);
             }
             if (!trustAgentInfos.isEmpty()) {
                 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet();
@@ -1291,9 +1254,9 @@
                 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES);
             }
             if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) {
-                out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS);
-                writeAttributeValuesToXml(out, TAG_PROVIDER, crossProfileWidgetProviders);
-                out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS);
+                writeAttributeValuesToXml(
+                        out, TAG_CROSS_PROFILE_WIDGET_PROVIDERS, TAG_PROVIDER,
+                        crossProfileWidgetProviders);
             }
             writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES,
                     permittedAccessiblityServices);
@@ -1307,20 +1270,15 @@
                         out, userRestrictions, TAG_USER_RESTRICTIONS);
             }
             if (!defaultEnabledRestrictionsAlreadySet.isEmpty()) {
-                out.startTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS);
-                writeAttributeValuesToXml(
-                        out, TAG_RESTRICTION, defaultEnabledRestrictionsAlreadySet);
-                out.endTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS);
+                writeAttributeValuesToXml(out, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS,
+                        TAG_RESTRICTION,
+                        defaultEnabledRestrictionsAlreadySet);
             }
             if (!TextUtils.isEmpty(shortSupportMessage)) {
-                out.startTag(null, TAG_SHORT_SUPPORT_MESSAGE);
-                out.text(shortSupportMessage.toString());
-                out.endTag(null, TAG_SHORT_SUPPORT_MESSAGE);
+                writeTextToXml(out, TAG_SHORT_SUPPORT_MESSAGE, shortSupportMessage.toString());
             }
             if (!TextUtils.isEmpty(longSupportMessage)) {
-                out.startTag(null, TAG_LONG_SUPPORT_MESSAGE);
-                out.text(longSupportMessage.toString());
-                out.endTag(null, TAG_LONG_SUPPORT_MESSAGE);
+                writeTextToXml(out, TAG_LONG_SUPPORT_MESSAGE, longSupportMessage.toString());
             }
             if (parentAdmin != null) {
                 out.startTag(null, TAG_PARENT_ADMIN);
@@ -1328,29 +1286,20 @@
                 out.endTag(null, TAG_PARENT_ADMIN);
             }
             if (organizationColor != DEF_ORGANIZATION_COLOR) {
-                out.startTag(null, TAG_ORGANIZATION_COLOR);
-                out.attribute(null, ATTR_VALUE, Integer.toString(organizationColor));
-                out.endTag(null, TAG_ORGANIZATION_COLOR);
+                writeAttributeValueToXml(out, TAG_ORGANIZATION_COLOR, organizationColor);
             }
             if (organizationName != null) {
-                out.startTag(null, TAG_ORGANIZATION_NAME);
-                out.text(organizationName);
-                out.endTag(null, TAG_ORGANIZATION_NAME);
+                writeTextToXml(out, TAG_ORGANIZATION_NAME, organizationName);
             }
             if (isLogoutEnabled) {
-                out.startTag(null, TAG_IS_LOGOUT_ENABLED);
-                out.attribute(null, ATTR_VALUE, Boolean.toString(isLogoutEnabled));
-                out.endTag(null, TAG_IS_LOGOUT_ENABLED);
+                writeAttributeValueToXml(
+                        out, TAG_IS_LOGOUT_ENABLED, isLogoutEnabled);
             }
             if (startUserSessionMessage != null) {
-                out.startTag(null, TAG_START_USER_SESSION_MESSAGE);
-                out.text(startUserSessionMessage);
-                out.endTag(null, TAG_START_USER_SESSION_MESSAGE);
+                writeTextToXml(out, TAG_START_USER_SESSION_MESSAGE, startUserSessionMessage);
             }
             if (endUserSessionMessage != null) {
-                out.startTag(null, TAG_END_USER_SESSION_MESSAGE);
-                out.text(endUserSessionMessage);
-                out.endTag(null, TAG_END_USER_SESSION_MESSAGE);
+                writeTextToXml(out, TAG_END_USER_SESSION_MESSAGE, endUserSessionMessage);
             }
             if (mCrossProfileCalendarPackages == null) {
                 out.startTag(null, TAG_CROSS_PROFILE_CALENDAR_PACKAGES_NULL);
@@ -1361,25 +1310,58 @@
             }
         }
 
+        void writeTextToXml(XmlSerializer out, String tag, String text) throws IOException {
+            out.startTag(null, tag);
+            out.text(text);
+            out.endTag(null, tag);
+        }
+
         void writePackageListToXml(XmlSerializer out, String outerTag,
                 List<String> packageList)
                 throws IllegalArgumentException, IllegalStateException, IOException {
             if (packageList == null) {
                 return;
             }
-
-            out.startTag(null, outerTag);
-            writeAttributeValuesToXml(out, TAG_PACKAGE_LIST_ITEM, packageList);
-            out.endTag(null, outerTag);
+            writeAttributeValuesToXml(out, outerTag, TAG_PACKAGE_LIST_ITEM, packageList);
         }
 
-        void writeAttributeValuesToXml(XmlSerializer out, String tag,
+        void writeAttributeValueToXml(XmlSerializer out, String tag, String value)
+                throws IOException {
+            out.startTag(null, tag);
+            out.attribute(null, ATTR_VALUE, value);
+            out.endTag(null, tag);
+        }
+
+        void writeAttributeValueToXml(XmlSerializer out, String tag, int value)
+                throws IOException {
+            out.startTag(null, tag);
+            out.attribute(null, ATTR_VALUE, Integer.toString(value));
+            out.endTag(null, tag);
+        }
+
+        void writeAttributeValueToXml(XmlSerializer out, String tag, long value)
+                throws IOException {
+            out.startTag(null, tag);
+            out.attribute(null, ATTR_VALUE, Long.toString(value));
+            out.endTag(null, tag);
+        }
+
+        void writeAttributeValueToXml(XmlSerializer out, String tag, boolean value)
+                throws IOException {
+            out.startTag(null, tag);
+            out.attribute(null, ATTR_VALUE, Boolean.toString(value));
+            out.endTag(null, tag);
+        }
+
+        void writeAttributeValuesToXml(XmlSerializer out, String outerTag, String innerTag,
                 @NonNull Collection<String> values) throws IOException {
+            out.startTag(null, outerTag);
             for (String value : values) {
-                out.startTag(null, tag);
+                out.startTag(null, innerTag);
                 out.attribute(null, ATTR_VALUE, value);
-                out.endTag(null, tag);
+                out.endTag(null, innerTag);
             }
+            out.endTag(null, outerTag);
         }
 
         void readFromXml(XmlPullParser parser, boolean shouldOverridePolicies)
@@ -1999,6 +1981,10 @@
             return LocalServices.getService(LockSettingsInternal.class);
         }
 
+        boolean hasUserSetupCompleted(DevicePolicyData userData) {
+            return userData.mUserSetupComplete;
+        }
+
         boolean isBuildDebuggable() {
             return Build.IS_DEBUGGABLE;
         }
@@ -5659,7 +5645,7 @@
                     KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid));
             try {
                 IKeyChainService keyChain = keyChainConnection.getService();
-                if (!keyChain.installKeyPair(privKey, cert, chain, alias)) {
+                if (!keyChain.installKeyPair(privKey, cert, chain, alias, KeyStore.UID_SELF)) {
                     return false;
                 }
                 if (requestAccess) {
@@ -8271,7 +8257,7 @@
         if (!mHasFeature) {
             return true;
         }
-        return getUserData(userHandle).mUserSetupComplete;
+        return mInjector.hasUserSetupCompleted(getUserData(userHandle));
     }
 
     private boolean hasPaired(int userHandle) {
diff --git a/services/tests/servicestests/src/com/android/server/accessibility/gestures/AccessibilityGestureDetectorTest.java b/services/tests/servicestests/src/com/android/server/accessibility/gestures/AccessibilityGestureDetectorTest.java
index 2585a28..b707912 100644
--- a/services/tests/servicestests/src/com/android/server/accessibility/gestures/AccessibilityGestureDetectorTest.java
+++ b/services/tests/servicestests/src/com/android/server/accessibility/gestures/AccessibilityGestureDetectorTest.java
@@ -176,6 +176,6 @@
 
         // Check that correct gesture was recognized.
         verify(mResultListener).onGestureCompleted(
-                argThat(gestureInfo -> gestureInfo.getGestureId() == gestureId));
+                argThat(gestureEvent -> gestureEvent.getGestureId() == gestureId));
     }
 }
diff --git a/services/tests/servicestests/src/com/android/server/am/MemoryStatUtilTest.java b/services/tests/servicestests/src/com/android/server/am/MemoryStatUtilTest.java
index 6a0d7f1..9e3b54d 100644
--- a/services/tests/servicestests/src/com/android/server/am/MemoryStatUtilTest.java
+++ b/services/tests/servicestests/src/com/android/server/am/MemoryStatUtilTest.java
@@ -22,7 +22,6 @@
 import static com.android.server.am.MemoryStatUtil.parseCmdlineFromProcfs;
 import static com.android.server.am.MemoryStatUtil.parseMemoryStatFromMemcg;
 import static com.android.server.am.MemoryStatUtil.parseMemoryStatFromProcfs;
-import static com.android.server.am.MemoryStatUtil.parseVmHWMFromProcfs;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNull;
@@ -230,18 +229,6 @@
     }
 
     @Test
-    public void testParseVmHWMFromProcfs_parsesCorrectValue() {
-        assertEquals(137668, parseVmHWMFromProcfs(PROC_STATUS_CONTENTS));
-    }
-
-    @Test
-    public void testParseVmHWMFromProcfs_emptyContents() {
-        assertEquals(0, parseVmHWMFromProcfs(""));
-
-        assertEquals(0, parseVmHWMFromProcfs(null));
-    }
-
-    @Test
     public void testParseCmdlineFromProcfs_invalidValue() {
         byte[] nothing = new byte[] {0x00, 0x74, 0x65, 0x73, 0x74}; // \0test
 
diff --git a/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java b/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java
index d6cb9826..d900910 100644
--- a/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java
+++ b/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java
@@ -765,7 +765,38 @@
     }
 
     /**
-     * Test for: @{link DevicePolicyManager#reportPasswordChanged}
+     * Test for: {@link DevicePolicyManager#setPasswordHistoryLength(ComponentName, int)}
+     *
+     * Validates that when the password history length is set, it is persisted after rebooting
+     */
+    public void testSaveAndLoadPasswordHistoryLength_persistedAfterReboot() throws Exception {
+        int passwordHistoryLength = 2;
+
+        mContext.callerPermissions.add(android.Manifest.permission.MANAGE_DEVICE_ADMINS);
+        mContext.callerPermissions.add(permission.MANAGE_PROFILE_AND_DEVICE_OWNERS);
+        mContext.binder.callingUid = DpmMockContext.CALLER_SYSTEM_USER_UID;
+
+        // Install admin1 on system user.
+        setUpPackageManagerForAdmin(admin1, DpmMockContext.CALLER_SYSTEM_USER_UID);
+
+        // Set admin1 to active admin and device owner
+        dpm.setActiveAdmin(admin1, false);
+        dpm.setDeviceOwner(admin1, null, UserHandle.USER_SYSTEM);
+
+        // Save password history length
+        dpm.setPasswordHistoryLength(admin1, passwordHistoryLength);
+
+        assertEquals(dpm.getPasswordHistoryLength(admin1), passwordHistoryLength);
+
+        initializeDpms();
+        reset(mContext.spiedContext);
+
+        // Password history length should persist after rebooted
+        assertEquals(dpm.getPasswordHistoryLength(admin1), passwordHistoryLength);
+    }
+
+    /**
+     * Test for: {@link DevicePolicyManager#reportPasswordChanged}
      *
      * Validates that when the password for a user changes, the notification broadcast intent
      * {@link DeviceAdminReceiver#ACTION_PASSWORD_CHANGED} is sent to managed profile owners, in
diff --git a/services/tests/servicestests/src/com/android/server/pm/ModuleInfoProviderTest.java b/services/tests/servicestests/src/com/android/server/pm/ModuleInfoProviderTest.java
index bd3d9ab..3852b9f 100644
--- a/services/tests/servicestests/src/com/android/server/pm/ModuleInfoProviderTest.java
+++ b/services/tests/servicestests/src/com/android/server/pm/ModuleInfoProviderTest.java
@@ -17,6 +17,7 @@
 
 import android.content.Context;
 import android.content.pm.ModuleInfo;
+import android.content.pm.PackageManager;
 import android.test.InstrumentationTestCase;
 
 import com.android.frameworks.servicestests.R;
@@ -28,7 +29,7 @@
     public void testSuccessfulParse() {
         ModuleInfoProvider provider = getProvider(R.xml.well_formed_metadata);
 
-        List<ModuleInfo> mi = provider.getInstalledModules(0);
+        List<ModuleInfo> mi = provider.getInstalledModules(PackageManager.MATCH_ALL);
         assertEquals(2, mi.size());
 
         Collections.sort(mi, (ModuleInfo m1, ModuleInfo m2) ->
@@ -49,18 +50,18 @@
 
     public void testParseFailure_incorrectTopLevelElement() {
         ModuleInfoProvider provider = getProvider(R.xml.unparseable_metadata1);
-        assertEquals(0, provider.getInstalledModules(0).size());
+        assertEquals(0, provider.getInstalledModules(PackageManager.MATCH_ALL).size());
     }
 
     public void testParseFailure_incorrectModuleElement() {
         ModuleInfoProvider provider = getProvider(R.xml.unparseable_metadata2);
-        assertEquals(0, provider.getInstalledModules(0).size());
+        assertEquals(0, provider.getInstalledModules(PackageManager.MATCH_ALL).size());
     }
 
     public void testParse_unknownAttributesIgnored() {
         ModuleInfoProvider provider = getProvider(R.xml.well_formed_metadata);
 
-        List<ModuleInfo> mi = provider.getInstalledModules(0);
+        List<ModuleInfo> mi = provider.getInstalledModules(PackageManager.MATCH_ALL);
         assertEquals(2, mi.size());
 
         ModuleInfo mi1 = provider.getModuleInfo("com.android.module1", 0);
diff --git a/services/tests/servicestests/src/com/android/server/stats/ProcfsMemoryUtilTest.java b/services/tests/servicestests/src/com/android/server/stats/ProcfsMemoryUtilTest.java
new file mode 100644
index 0000000..4fb533f
--- /dev/null
+++ b/services/tests/servicestests/src/com/android/server/stats/ProcfsMemoryUtilTest.java
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.server.stats;
+
+import static com.android.server.stats.ProcfsMemoryUtil.parseVmHWMFromStatus;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import androidx.test.filters.SmallTest;
+
+import org.junit.Test;
+
+/**
+ * Build/Install/Run:
+ *  atest FrameworksServicesTests:ProcfsMemoryUtilTest
+ */
+@SmallTest
+public class ProcfsMemoryUtilTest {
+    private static final String STATUS_CONTENTS = "Name:\tandroid.youtube\n"
+            + "State:\tS (sleeping)\n"
+            + "Tgid:\t12088\n"
+            + "Pid:\t12088\n"
+            + "PPid:\t723\n"
+            + "TracerPid:\t0\n"
+            + "Uid:\t10083\t10083\t10083\t10083\n"
+            + "Gid:\t10083\t10083\t10083\t10083\n"
+            + "Ngid:\t0\n"
+            + "FDSize:\t128\n"
+            + "Groups:\t3003 9997 20083 50083 \n"
+            + "VmPeak:\t 4546844 kB\n"
+            + "VmSize:\t 4542636 kB\n"
+            + "VmLck:\t       0 kB\n"
+            + "VmPin:\t       0 kB\n"
+            + "VmHWM:\t  137668 kB\n" // RSS high-water mark
+            + "VmRSS:\t  126776 kB\n" // RSS
+            + "RssAnon:\t   37860 kB\n"
+            + "RssFile:\t   88764 kB\n"
+            + "RssShmem:\t     152 kB\n"
+            + "VmData:\t 4125112 kB\n"
+            + "VmStk:\t    8192 kB\n"
+            + "VmExe:\t      24 kB\n"
+            + "VmLib:\t  102432 kB\n"
+            + "VmPTE:\t    1300 kB\n"
+            + "VmPMD:\t      36 kB\n"
+            + "VmSwap:\t      22 kB\n" // Swap
+            + "Threads:\t95\n"
+            + "SigQ:\t0/13641\n"
+            + "SigPnd:\t0000000000000000\n"
+            + "ShdPnd:\t0000000000000000\n"
+            + "SigBlk:\t0000000000001204\n"
+            + "SigIgn:\t0000000000000001\n"
+            + "SigCgt:\t00000006400084f8\n"
+            + "CapInh:\t0000000000000000\n"
+            + "CapPrm:\t0000000000000000\n"
+            + "CapEff:\t0000000000000000\n"
+            + "CapBnd:\t0000000000000000\n"
+            + "CapAmb:\t0000000000000000\n"
+            + "Seccomp:\t2\n"
+            + "Cpus_allowed:\tff\n"
+            + "Cpus_allowed_list:\t0-7\n"
+            + "Mems_allowed:\t1\n"
+            + "Mems_allowed_list:\t0\n"
+            + "voluntary_ctxt_switches:\t903\n"
+            + "nonvoluntary_ctxt_switches:\t104\n";
+
+    @Test
+    public void testParseVmHWMFromStatus_parsesCorrectValue() {
+        assertThat(parseVmHWMFromStatus(STATUS_CONTENTS)).isEqualTo(137668);
+    }
+
+    @Test
+    public void testParseVmHWMFromStatus_invalidValue() {
+        assertThat(parseVmHWMFromStatus("test\nVmHWM: x0x0x\ntest")).isEqualTo(0);
+    }
+
+    @Test
+    public void testParseVmHWMFromStatus_emptyContents() {
+        assertThat(parseVmHWMFromStatus("")).isEqualTo(0);
+    }
+}
diff --git a/services/tests/uiservicestests/src/com/android/server/notification/NotificationComparatorTest.java b/services/tests/uiservicestests/src/com/android/server/notification/NotificationComparatorTest.java
index e15af3d..0b4760d 100644
--- a/services/tests/uiservicestests/src/com/android/server/notification/NotificationComparatorTest.java
+++ b/services/tests/uiservicestests/src/com/android/server/notification/NotificationComparatorTest.java
@@ -68,6 +68,7 @@
     private final int uid2 = 1111111;
     private static final String TEST_CHANNEL_ID = "test_channel_id";
 
+    private NotificationRecord mRecordMinCallNonInterruptive;
     private NotificationRecord mRecordMinCall;
     private NotificationRecord mRecordHighCall;
     private NotificationRecord mRecordDefaultMedia;
@@ -105,6 +106,18 @@
         smsPkg = Settings.Secure.getString(mContext.getContentResolver(),
                 Settings.Secure.SMS_DEFAULT_APPLICATION);
 
+        Notification nonInterruptiveNotif = new Notification.Builder(mContext, TEST_CHANNEL_ID)
+                .setCategory(Notification.CATEGORY_CALL)
+                .setFlag(Notification.FLAG_FOREGROUND_SERVICE, true)
+                .build();
+        mRecordMinCallNonInterruptive = new NotificationRecord(mContext,
+                new StatusBarNotification(callPkg,
+                        callPkg, 1, "mRecordMinCallNonInterruptive", callUid, callUid,
+                        nonInterruptiveNotif,
+                        new UserHandle(userId), "", 2000), getDefaultChannel());
+        mRecordMinCallNonInterruptive.setSystemImportance(NotificationManager.IMPORTANCE_MIN);
+        mRecordMinCallNonInterruptive.setInterruptive(false);
+
         Notification n1 = new Notification.Builder(mContext, TEST_CHANNEL_ID)
                 .setCategory(Notification.CATEGORY_CALL)
                 .setFlag(Notification.FLAG_FOREGROUND_SERVICE, true)
@@ -113,6 +126,7 @@
                 callPkg, 1, "minCall", callUid, callUid, n1,
                 new UserHandle(userId), "", 2000), getDefaultChannel());
         mRecordMinCall.setSystemImportance(NotificationManager.IMPORTANCE_MIN);
+        mRecordMinCall.setInterruptive(true);
 
         Notification n2 = new Notification.Builder(mContext, TEST_CHANNEL_ID)
                 .setCategory(Notification.CATEGORY_CALL)
@@ -245,6 +259,7 @@
         expected.add(mRecordCheater);
         expected.add(mRecordCheaterColorized);
         expected.add(mRecordMinCall);
+        expected.add(mRecordMinCallNonInterruptive);
 
         List<NotificationRecord> actual = new ArrayList<>();
         actual.addAll(expected);
diff --git a/services/tests/uiservicestests/src/com/android/server/notification/NotificationListenerServiceTest.java b/services/tests/uiservicestests/src/com/android/server/notification/NotificationListenerServiceTest.java
index 397d215..a9fe1a6 100644
--- a/services/tests/uiservicestests/src/com/android/server/notification/NotificationListenerServiceTest.java
+++ b/services/tests/uiservicestests/src/com/android/server/notification/NotificationListenerServiceTest.java
@@ -51,6 +51,8 @@
 import android.service.notification.SnoozeCriterion;
 import android.test.suitebuilder.annotation.SmallTest;
 
+import androidx.test.runner.AndroidJUnit4;
+
 import com.android.server.UiServiceTestCase;
 
 import org.junit.After;
@@ -61,8 +63,6 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import androidx.test.runner.AndroidJUnit4;
-
 @SmallTest
 @RunWith(AndroidJUnit4.class)
 public class NotificationListenerServiceTest extends UiServiceTestCase {
@@ -116,6 +116,7 @@
             assertActionsEqual(getSmartActions(key, i), ranking.getSmartActions());
             assertEquals(getSmartReplies(key, i), ranking.getSmartReplies());
             assertEquals(canBubble(i), ranking.canBubble());
+            assertEquals(visuallyInterruptive(i), ranking.visuallyInterruptive());
         }
     }
 
@@ -182,7 +183,8 @@
                 tweak.isNoisy(),
                 (ArrayList) tweak.getSmartActions(),
                 (ArrayList) tweak.getSmartReplies(),
-                tweak.canBubble()
+                tweak.canBubble(),
+                tweak.visuallyInterruptive()
         );
         assertNotEquals(nru, nru2);
     }
@@ -258,7 +260,8 @@
                     getNoisy(i),
                     getSmartActions(key, i),
                     getSmartReplies(key, i),
-                    canBubble(i)
+                    canBubble(i),
+                    visuallyInterruptive(i)
             );
             rankings[i] = ranking;
         }
@@ -363,6 +366,10 @@
         return index % 4 == 0;
     }
 
+    private boolean visuallyInterruptive(int index) {
+        return index % 4 == 0;
+    }
+
     private void assertActionsEqual(
             List<Notification.Action> expecteds, List<Notification.Action> actuals) {
         assertEquals(expecteds.size(), actuals.size());
diff --git a/services/tests/wmtests/src/com/android/server/wm/ActivityStarterTests.java b/services/tests/wmtests/src/com/android/server/wm/ActivityStarterTests.java
index 60730fe..1f672c0 100644
--- a/services/tests/wmtests/src/com/android/server/wm/ActivityStarterTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/ActivityStarterTests.java
@@ -354,7 +354,7 @@
             doReturn(stack).when(mRootActivityContainer)
                     .getLaunchStack(any(), any(), any(), anyBoolean());
             doReturn(stack).when(mRootActivityContainer)
-                    .getLaunchStack(any(), any(), any(), anyBoolean(), any());
+                    .getLaunchStack(any(), any(), any(), anyBoolean(), any(), anyInt(), anyInt());
         }
 
         // Set up mock package manager internal and make sure no unmocked methods are called
@@ -366,7 +366,7 @@
 
         // Never review permissions
         doReturn(false).when(mockPackageManager).isPermissionsReviewRequired(any(), anyInt());
-        doNothing().when(mockPackageManager).grantEphemeralAccess(
+        doNothing().when(mockPackageManager).grantImplicitAccess(
                 anyInt(), any(), anyInt(), anyInt());
 
         final Intent intent = new Intent();
diff --git a/services/tests/wmtests/src/com/android/server/wm/ActivityTestsBase.java b/services/tests/wmtests/src/com/android/server/wm/ActivityTestsBase.java
index 1731f7c..4f00383 100644
--- a/services/tests/wmtests/src/com/android/server/wm/ActivityTestsBase.java
+++ b/services/tests/wmtests/src/com/android/server/wm/ActivityTestsBase.java
@@ -38,6 +38,7 @@
 import android.content.pm.ActivityInfo;
 import android.content.pm.ApplicationInfo;
 import android.content.res.Configuration;
+import android.graphics.Rect;
 import android.os.UserHandle;
 import android.service.voice.IVoiceInteractionSession;
 import android.testing.DexmakerShareClassLoaderRule;
@@ -139,6 +140,8 @@
         private int mScreenOrientation = SCREEN_ORIENTATION_UNSPECIFIED;
         private boolean mLaunchTaskBehind;
         private int mConfigChanges;
+        private int mLaunchedFromPid;
+        private int mLaunchedFromUid;
 
         ActivityBuilder(ActivityTaskManagerService service) {
             mService = service;
@@ -214,6 +217,16 @@
             return this;
         }
 
+        ActivityBuilder setLaunchedFromPid(int pid) {
+            mLaunchedFromPid = pid;
+            return this;
+        }
+
+        ActivityBuilder setLaunchedFromUid(int uid) {
+            mLaunchedFromUid = uid;
+            return this;
+        }
+
         ActivityRecord build() {
             if (mComponent == null) {
                 final int id = sCurrentActivityId++;
@@ -250,10 +263,11 @@
             }
 
             final ActivityRecord activity = new ActivityRecord(mService, null /* caller */,
-                    0 /* launchedFromPid */, 0, null, intent, null,
-                    aInfo /*aInfo*/, new Configuration(), null /* resultTo */, null /* resultWho */,
-                    0 /* reqCode */, false /*componentSpecified*/, false /* rootVoiceInteraction */,
-                    mService.mStackSupervisor, options, null /* sourceRecord */);
+                    mLaunchedFromPid /* launchedFromPid */, mLaunchedFromUid /* launchedFromUid */,
+                    null, intent, null, aInfo /*aInfo*/, new Configuration(), null /* resultTo */,
+                    null /* resultWho */, 0 /* reqCode */, false /*componentSpecified*/,
+                    false /* rootVoiceInteraction */, mService.mStackSupervisor, options,
+                    null /* sourceRecord */);
             spyOn(activity);
             if (mTaskRecord != null) {
                 // fullscreen value is normally read from resources in ctor, so for testing we need
@@ -432,7 +446,12 @@
             final ActivityStackSupervisor supervisor = mRootActivityContainer.mStackSupervisor;
             if (mWindowingMode == WINDOWING_MODE_PINNED) {
                 stack = new ActivityStack(mDisplay, stackId, supervisor,
-                        mWindowingMode, ACTIVITY_TYPE_STANDARD, mOnTop);
+                        mWindowingMode, ACTIVITY_TYPE_STANDARD, mOnTop) {
+                    @Override
+                    Rect getDefaultPictureInPictureBounds(float aspectRatio) {
+                        return new Rect(50, 50, 100, 100);
+                    }
+                };
             } else {
                 stack = new ActivityStack(mDisplay, stackId, supervisor,
                         mWindowingMode, mActivityType, mOnTop);
diff --git a/services/tests/wmtests/src/com/android/server/wm/PinnedStackControllerTest.java b/services/tests/wmtests/src/com/android/server/wm/PinnedStackControllerTest.java
index e9c2263..efd468f 100644
--- a/services/tests/wmtests/src/com/android/server/wm/PinnedStackControllerTest.java
+++ b/services/tests/wmtests/src/com/android/server/wm/PinnedStackControllerTest.java
@@ -66,8 +66,8 @@
 
         verify(mIPinnedStackListener).onImeVisibilityChanged(false, 0);
         verify(mIPinnedStackListener).onShelfVisibilityChanged(false, 0);
-        verify(mIPinnedStackListener).onMovementBoundsChanged(any(), eq(false),
-                eq(false));
+        verify(mIPinnedStackListener).onMovementBoundsChanged(any(), any(), any(), eq(false),
+                eq(false), anyInt());
         verify(mIPinnedStackListener).onActionsChanged(any());
         verify(mIPinnedStackListener).onMinimizedStateChanged(anyBoolean());
 
@@ -75,8 +75,8 @@
 
         mWm.setShelfHeight(true, SHELF_HEIGHT);
         verify(mIPinnedStackListener).onShelfVisibilityChanged(true, SHELF_HEIGHT);
-        verify(mIPinnedStackListener).onMovementBoundsChanged(any(), eq(false),
-                eq(true));
+        verify(mIPinnedStackListener).onMovementBoundsChanged(any(), any(), any(), eq(false),
+                eq(true), anyInt());
         verify(mIPinnedStackListener, never()).onImeVisibilityChanged(anyBoolean(), anyInt());
     }
 }
diff --git a/services/tests/wmtests/src/com/android/server/wm/RootActivityContainerTests.java b/services/tests/wmtests/src/com/android/server/wm/RootActivityContainerTests.java
index c67b860..aa97de72 100644
--- a/services/tests/wmtests/src/com/android/server/wm/RootActivityContainerTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/RootActivityContainerTests.java
@@ -25,6 +25,7 @@
 import static android.app.WindowConfiguration.WINDOWING_MODE_SPLIT_SCREEN_PRIMARY;
 import static android.content.pm.ActivityInfo.FLAG_ALWAYS_FOCUSABLE;
 import static android.view.Display.DEFAULT_DISPLAY;
+import static android.view.Display.TYPE_VIRTUAL;
 
 import static com.android.dx.mockito.inline.extended.ExtendedMockito.doReturn;
 import static com.android.dx.mockito.inline.extended.ExtendedMockito.mock;
@@ -61,6 +62,7 @@
 import android.graphics.Rect;
 import android.platform.test.annotations.Presubmit;
 import android.util.Pair;
+import android.view.DisplayInfo;
 
 import androidx.test.filters.MediumTest;
 
@@ -820,6 +822,41 @@
     }
 
     /**
+     * Test that {@link RootActivityContainer#getLaunchStack} with the real caller id will get the
+     * expected stack when requesting the activity launch on the secondary display.
+     */
+    @Test
+    public void testGetLaunchStackWithRealCallerId() {
+        // Create a non-system owned virtual display.
+        final DisplayInfo info = new DisplayInfo();
+        mSupervisor.mService.mContext.getDisplay().getDisplayInfo(info);
+        info.type = TYPE_VIRTUAL;
+        info.ownerUid = 100;
+        final TestActivityDisplay secondaryDisplay = TestActivityDisplay.create(mSupervisor, info);
+        mRootActivityContainer.addChild(secondaryDisplay, POSITION_TOP);
+
+        // Create an activity with specify the original launch pid / uid.
+        final ActivityRecord r = new ActivityBuilder(mService).setLaunchedFromPid(200)
+                .setLaunchedFromUid(200).build();
+
+        // Simulate ActivityStarter to find a launch stack for requesting the activity to launch
+        // on the secondary display with realCallerId.
+        final ActivityOptions options = ActivityOptions.makeBasic();
+        options.setLaunchDisplayId(secondaryDisplay.mDisplayId);
+        options.setLaunchWindowingMode(WINDOWING_MODE_FULLSCREEN);
+        doReturn(true).when(mSupervisor).canPlaceEntityOnDisplay(secondaryDisplay.mDisplayId,
+                300 /* test realCallerPid */, 300 /* test realCallerUid */, r.info);
+        final ActivityStack result = mRootActivityContainer.getLaunchStack(r, options,
+                null /* task */, true /* onTop */, null, 300 /* test realCallerPid */,
+                300 /* test realCallerUid */);
+
+        // Assert that the stack is returned as expected.
+        assertNotNull(result);
+        assertEquals("The display ID of the stack should same as secondary display ",
+                secondaryDisplay.mDisplayId, result.mDisplayId);
+    }
+
+    /**
      * Mock {@link RootActivityContainer#resolveHomeActivity} for returning consistent activity
      * info for test cases (the original implementation will resolve from the real package manager).
      */
diff --git a/services/tests/wmtests/src/com/android/server/wm/SystemServicesTestRule.java b/services/tests/wmtests/src/com/android/server/wm/SystemServicesTestRule.java
index 2fe2c41..5a4d399 100644
--- a/services/tests/wmtests/src/com/android/server/wm/SystemServicesTestRule.java
+++ b/services/tests/wmtests/src/com/android/server/wm/SystemServicesTestRule.java
@@ -231,7 +231,7 @@
                 new AMTestInjector(mContext, mHandlerThread), mHandlerThread);
         spyOn(mAmService);
         doReturn(mock(IPackageManager.class)).when(mAmService).getPackageManager();
-        doNothing().when(mAmService).grantEphemeralAccessLocked(
+        doNothing().when(mAmService).grantImplicitAccess(
                 anyInt(), any(), anyInt(), anyInt());
 
         // ActivityManagerInternal
diff --git a/startop/apps/test/src/SystemServerBenchmarkActivity.java b/startop/apps/test/src/SystemServerBenchmarkActivity.java
index 61d4322..ed3cbe9 100644
--- a/startop/apps/test/src/SystemServerBenchmarkActivity.java
+++ b/startop/apps/test/src/SystemServerBenchmarkActivity.java
@@ -17,8 +17,10 @@
 package com.android.startop.test;
 
 import android.app.Activity;
+import android.app.ActivityManager;
 import android.content.ComponentName;
 import android.content.Context;
+import android.content.Intent;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
@@ -139,6 +141,10 @@
                     throw new RuntimeException(e);
                 }
             });
+
+            new Benchmark(benchmarkList, "getPackagesForUid", () -> {
+                pm.getPackagesForUid(app.uid);
+            });
         } catch (NameNotFoundException e) {
             throw new RuntimeException(e);
         }
@@ -152,5 +158,45 @@
             }
         });
 
+        new Benchmark(benchmarkList, "getLaunchIntentForPackage", () -> {
+            pm.getLaunchIntentForPackage("com.android.startop.test");
+        });
+
+        new Benchmark(benchmarkList, "getPackageUid", () -> {
+            try {
+                pm.getPackageUid("com.android.startop.test", 0);
+            } catch (NameNotFoundException e) {
+                throw new RuntimeException(e);
+            }
+        });
+
+        new Benchmark(benchmarkList, "checkPermission", () -> {
+            // Check for the first permission I could find.
+            pm.checkPermission("android.permission.SEND_SMS", "com.android.startop.test");
+        });
+
+        new Benchmark(benchmarkList, "checkSignatures", () -> {
+            // Compare with settings, since settings is on both AOSP and Master builds
+            pm.checkSignatures("com.android.settings", "com.android.startop.test");
+        });
+
+        Intent intent = new Intent(Intent.ACTION_BOOT_COMPLETED);
+        new Benchmark(benchmarkList, "queryBroadcastReceivers", () -> {
+            pm.queryBroadcastReceivers(intent, 0);
+        });
+
+        new Benchmark(benchmarkList, "hasSystemFeature", () -> {
+            pm.hasSystemFeature(PackageManager.FEATURE_CAMERA);
+        });
+
+        new Benchmark(benchmarkList, "resolveService", () -> {
+            pm.resolveService(intent, 0);
+        });
+
+        ActivityManager am = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);
+        new Benchmark(benchmarkList, "getRunningAppProcesses", () -> {
+            am.getRunningAppProcesses();
+        });
+
     }
 }
diff --git a/telecomm/java/android/telecom/ConnectionService.java b/telecomm/java/android/telecom/ConnectionService.java
index 3548810..0abd9fc 100644
--- a/telecomm/java/android/telecom/ConnectionService.java
+++ b/telecomm/java/android/telecom/ConnectionService.java
@@ -30,6 +30,7 @@
 import android.os.RemoteException;
 import android.telecom.Logging.Session;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.os.SomeArgs;
 import com.android.internal.telecom.IConnectionService;
 import com.android.internal.telecom.IConnectionServiceAdapter;
@@ -2672,4 +2673,13 @@
             return ++mId;
         }
     }
+
+    /**
+     * Returns this handler, ONLY FOR TESTING.
+     * @hide
+     */
+    @VisibleForTesting
+    public Handler getHandler() {
+        return mHandler;
+    }
 }
diff --git a/telecomm/java/android/telecom/Logging/SessionManager.java b/telecomm/java/android/telecom/Logging/SessionManager.java
index 949f7b7..49c3a72 100644
--- a/telecomm/java/android/telecom/Logging/SessionManager.java
+++ b/telecomm/java/android/telecom/Logging/SessionManager.java
@@ -391,6 +391,20 @@
         return mCurrentThreadId.get();
     }
 
+    /**
+     * @return A String representation of the active sessions at the time that this method is
+     * called.
+     */
+    @VisibleForTesting
+    public synchronized String printActiveSessions() {
+        StringBuilder message = new StringBuilder();
+        for (ConcurrentHashMap.Entry<Integer, Session> entry : mSessionMapper.entrySet()) {
+            message.append(entry.getValue().printFullSessionTree());
+            message.append("\n");
+        }
+        return message.toString();
+    }
+
     @VisibleForTesting
     public synchronized void cleanupStaleSessions(long timeoutMs) {
         String logMessage = "Stale Sessions Cleaned:\n";
diff --git a/telephony/java/android/telephony/SubscriptionInfo.java b/telephony/java/android/telephony/SubscriptionInfo.java
index 58f2858..f527bc3 100644
--- a/telephony/java/android/telephony/SubscriptionInfo.java
+++ b/telephony/java/android/telephony/SubscriptionInfo.java
@@ -578,7 +578,8 @@
         PackageManager packageManager = context.getPackageManager();
         PackageInfo packageInfo;
         try {
-            packageInfo = packageManager.getPackageInfo(packageName, PackageManager.GET_SIGNATURES);
+            packageInfo = packageManager.getPackageInfo(packageName,
+                PackageManager.GET_SIGNING_CERTIFICATES);
         } catch (PackageManager.NameNotFoundException e) {
             Log.d("SubscriptionInfo", "canManageSubscription: Unknown package: " + packageName, e);
             return false;
diff --git a/telephony/java/android/telephony/SubscriptionManager.java b/telephony/java/android/telephony/SubscriptionManager.java
index d3cba2e..51de903 100644
--- a/telephony/java/android/telephony/SubscriptionManager.java
+++ b/telephony/java/android/telephony/SubscriptionManager.java
@@ -2701,7 +2701,8 @@
         PackageManager packageManager = mContext.getPackageManager();
         PackageInfo packageInfo;
         try {
-            packageInfo = packageManager.getPackageInfo(packageName, PackageManager.GET_SIGNATURES);
+            packageInfo = packageManager.getPackageInfo(packageName,
+                PackageManager.GET_SIGNING_CERTIFICATES);
         } catch (PackageManager.NameNotFoundException e) {
             logd("Unknown package: " + packageName);
             return false;
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index f25b012..b5dbbe7 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -3251,6 +3251,31 @@
         }
     }
 
+
+    /**
+     * Returns true if the specified type of application (e.g. {@link #APPTYPE_CSIM} is present
+     * on the UICC card.
+     *
+     * Requires that the calling app has READ_PRIVILEGED_PHONE_STATE permission
+     *
+     * @param appType the uicc app type like {@link APPTYPE_CSIM}
+     * @return true if the specified type of application in UICC CARD or false if no uicc or error.
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    public boolean isApplicationOnUicc(@UiccAppType int appType) {
+        try {
+            ITelephony service = getITelephony();
+            if (service != null) {
+                return service.isApplicationOnUicc(getSubId(), appType);
+            }
+        } catch (RemoteException e) {
+            Log.e(TAG, "Error calling ITelephony#isApplicationOnUicc", e);
+        }
+        return false;
+    }
+
     /**
      * Returns a constant indicating the state of the device SIM card in a logical slot.
      *
diff --git a/telephony/java/android/telephony/UiccAccessRule.java b/telephony/java/android/telephony/UiccAccessRule.java
index 811722f..93ccba1 100644
--- a/telephony/java/android/telephony/UiccAccessRule.java
+++ b/telephony/java/android/telephony/UiccAccessRule.java
@@ -20,6 +20,7 @@
 import android.annotation.SystemApi;
 import android.content.pm.PackageInfo;
 import android.content.pm.Signature;
+import android.content.pm.SigningInfo;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.text.TextUtils;
@@ -169,17 +170,28 @@
      *
      * @param packageInfo package info fetched from
      *     {@link android.content.pm.PackageManager#getPackageInfo}.
-     *     {@link android.content.pm.PackageManager#GET_SIGNATURES} must have been passed in.
+     *     {@link android.content.pm.PackageManager#GET_SIGNING_CERTIFICATES} must have been
+     *         passed in.
      * @return either {@link TelephonyManager#CARRIER_PRIVILEGE_STATUS_HAS_ACCESS} or
      *     {@link TelephonyManager#CARRIER_PRIVILEGE_STATUS_NO_ACCESS}.
      */
     public int getCarrierPrivilegeStatus(PackageInfo packageInfo) {
-        if (packageInfo.signatures == null || packageInfo.signatures.length == 0) {
-            throw new IllegalArgumentException(
-                    "Must use GET_SIGNATURES when looking up package info");
+        Signature[] signatures = packageInfo.signatures;
+        SigningInfo sInfo = packageInfo.signingInfo;
+
+        if (sInfo != null) {
+            signatures = sInfo.getSigningCertificateHistory();
+            if (sInfo.hasMultipleSigners()) {
+                signatures = sInfo.getApkContentsSigners();
+            }
         }
 
-        for (Signature sig : packageInfo.signatures) {
+        if (signatures == null || signatures.length == 0) {
+            throw new IllegalArgumentException(
+                    "Must use GET_SIGNING_CERTIFICATES when looking up package info");
+        }
+
+        for (Signature sig : signatures) {
             int accessStatus = getCarrierPrivilegeStatus(sig, packageInfo.packageName);
             if (accessStatus != TelephonyManager.CARRIER_PRIVILEGE_STATUS_NO_ACCESS) {
                 return accessStatus;
diff --git a/telephony/java/android/telephony/ims/aidl/IImsSmsListener.aidl b/telephony/java/android/telephony/ims/aidl/IImsSmsListener.aidl
index 606df15..6a35e33 100644
--- a/telephony/java/android/telephony/ims/aidl/IImsSmsListener.aidl
+++ b/telephony/java/android/telephony/ims/aidl/IImsSmsListener.aidl
@@ -22,7 +22,6 @@
  */
 oneway interface IImsSmsListener {
     void onSendSmsResult(int token, int messageRef, int status, int reason);
-    void onSmsStatusReportReceived(int token, int messageRef, in String format,
-            in byte[] pdu);
+    void onSmsStatusReportReceived(int token, in String format, in byte[] pdu);
     void onSmsReceived(int token, in String format, in byte[] pdu);
-}
\ No newline at end of file
+}
diff --git a/telephony/java/android/telephony/ims/stub/ImsSmsImplBase.java b/telephony/java/android/telephony/ims/stub/ImsSmsImplBase.java
index 852c8e0..2e4bfb3 100644
--- a/telephony/java/android/telephony/ims/stub/ImsSmsImplBase.java
+++ b/telephony/java/android/telephony/ims/stub/ImsSmsImplBase.java
@@ -147,7 +147,7 @@
      *               {@link SmsMessage#FORMAT_3GPP2}.
      * @param smsc the Short Message Service Center address.
      * @param isRetry whether it is a retry of an already attempted message or not.
-     * @param pdu PDUs representing the contents of the message.
+     * @param pdu PDU representing the contents of the message.
      */
     public void sendSms(int token, int messageRef, String format, String smsc, boolean isRetry,
             byte[] pdu) {
@@ -166,27 +166,29 @@
      * provider.
      *
      * @param token token provided in {@link #onSmsReceived(int, String, byte[])}
+     * @param messageRef the message reference
      * @param result result of delivering the message. Valid values are:
      *  {@link #DELIVER_STATUS_OK},
      *  {@link #DELIVER_STATUS_ERROR_GENERIC},
      *  {@link #DELIVER_STATUS_ERROR_NO_MEMORY},
      *  {@link #DELIVER_STATUS_ERROR_REQUEST_NOT_SUPPORTED}
-     * @param messageRef the message reference
      */
-    public void acknowledgeSms(int token, @DeliverStatusResult int messageRef, int result) {
+    public void acknowledgeSms(int token, int messageRef, @DeliverStatusResult int result) {
         Log.e(LOG_TAG, "acknowledgeSms() not implemented.");
     }
 
     /**
      * This method will be triggered by the platform after
-     * {@link #onSmsStatusReportReceived(int, int, String, byte[])} has been called to provide the
+     * {@link #onSmsStatusReportReceived(int, int, String, byte[])} or
+     * {@link #onSmsStatusReportReceived(int, String, byte[])} has been called to provide the
      * result to the IMS provider.
      *
-     * @param token token provided in {@link #sendSms(int, int, String, String, boolean, byte[])}
+     * @param token token provided in {@link #onSmsStatusReportReceived(int, int, String, byte[])}
+     *              or {@link #onSmsStatusReportReceived(int, String, byte[])}
+     * @param messageRef the message reference
      * @param result result of delivering the message. Valid values are:
      *  {@link #STATUS_REPORT_STATUS_OK},
      *  {@link #STATUS_REPORT_STATUS_ERROR}
-     * @param messageRef the message reference
      */
     public void acknowledgeSmsReport(int token, int messageRef, @StatusReportResult int result) {
         Log.e(LOG_TAG, "acknowledgeSmsReport() not implemented.");
@@ -204,7 +206,7 @@
      *              callbacks for this message.
      * @param format the format of the message. Valid values are {@link SmsMessage#FORMAT_3GPP} and
      * {@link SmsMessage#FORMAT_3GPP2}.
-     * @param pdu PDUs representing the contents of the message.
+     * @param pdu PDU representing the contents of the message.
      * @throws RuntimeException if called before {@link #onReady()} is triggered.
      */
     public final void onSmsReceived(int token, String format, byte[] pdu) throws RuntimeException {
@@ -285,23 +287,32 @@
     }
 
     /**
-     * Sets the status report of the sent message.
+     * This method should be triggered by the IMS providers when the status report of the sent
+     * message is received. The platform will handle the report and notify the IMS provider of the
+     * result by calling {@link #acknowledgeSmsReport(int, int, int)}.
      *
+     * This method must not be called before {@link #onReady()} is called or the call will fail. If
+     * the platform is not available, {@link #acknowledgeSmsReport(int, int, int)} will be called
+     * with the {@link #STATUS_REPORT_STATUS_ERROR} result code.
      * @param token token provided in {@link #sendSms(int, int, String, String, boolean, byte[])}
      * @param messageRef the message reference.
      * @param format the format of the message. Valid values are {@link SmsMessage#FORMAT_3GPP} and
-     * {@link SmsMessage#FORMAT_3GPP2}.
-     * @param pdu PDUs representing the content of the status report.
+     *               {@link SmsMessage#FORMAT_3GPP2}.
+     * @param pdu PDU representing the content of the status report.
      * @throws RuntimeException if called before {@link #onReady()} is triggered
+     *
+     * @deprecated Use {@link #onSmsStatusReportReceived(int, String, byte[])} instead without the
+     * message reference.
      */
+    @Deprecated
     public final void onSmsStatusReportReceived(int token, int messageRef, String format,
-            byte[] pdu) throws RuntimeException{
+            byte[] pdu) throws RuntimeException {
         synchronized (mLock) {
             if (mListener == null) {
                 throw new RuntimeException("Feature not ready.");
             }
             try {
-                mListener.onSmsStatusReportReceived(token, messageRef, format, pdu);
+                mListener.onSmsStatusReportReceived(token, format, pdu);
             } catch (RemoteException e) {
                 Log.e(LOG_TAG, "Can not process sms status report: " + e.getMessage());
                 acknowledgeSmsReport(token, messageRef, STATUS_REPORT_STATUS_ERROR);
@@ -310,6 +321,46 @@
     }
 
     /**
+     * This method should be triggered by the IMS providers when the status report of the sent
+     * message is received. The platform will handle the report and notify the IMS provider of the
+     * result by calling {@link #acknowledgeSmsReport(int, int, int)}.
+     *
+     * This method must not be called before {@link #onReady()} is called or the call will fail. If
+     * the platform is not available, {@link #acknowledgeSmsReport(int, int, int)} will be called
+     * with the {@link #STATUS_REPORT_STATUS_ERROR} result code.
+     * @param token unique token generated by IMS providers that the platform will use to trigger
+     *              callbacks for this message.
+     * @param format the format of the message. Valid values are {@link SmsMessage#FORMAT_3GPP} and
+     *               {@link SmsMessage#FORMAT_3GPP2}.
+     * @param pdu PDU representing the content of the status report.
+     * @throws RuntimeException if called before {@link #onReady()} is triggered
+     */
+    public final void onSmsStatusReportReceived(int token, String format, byte[] pdu)
+            throws RuntimeException {
+        synchronized (mLock) {
+            if (mListener == null) {
+                throw new RuntimeException("Feature not ready.");
+            }
+            try {
+                mListener.onSmsStatusReportReceived(token, format, pdu);
+            } catch (RemoteException e) {
+                Log.e(LOG_TAG, "Can not process sms status report: " + e.getMessage());
+                SmsMessage message = SmsMessage.createFromPdu(pdu, format);
+                if (message != null && message.mWrappedSmsMessage != null) {
+                    acknowledgeSmsReport(
+                            token,
+                            message.mWrappedSmsMessage.mMessageRef,
+                            STATUS_REPORT_STATUS_ERROR);
+                } else {
+                    Log.w(LOG_TAG,
+                            "onSmsStatusReportReceivedWithoutMessageRef: Invalid pdu entered.");
+                    acknowledgeSmsReport(token, 0, STATUS_REPORT_STATUS_ERROR);
+                }
+            }
+        }
+    }
+
+    /**
      * Returns the SMS format. Default is {@link SmsMessage#FORMAT_3GPP} unless overridden by IMS
      * Provider.
      *
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 9f1a2f7..866e936 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -2012,6 +2012,13 @@
      */
     int getRadioHalVersion();
 
+    /**
+     * Returns true if the specified type of application (e.g. {@link #APPTYPE_CSIM} is present
+     * on the UICC card.
+     * @hide
+     */
+    boolean isApplicationOnUicc(int subId, int appType);
+
     boolean isModemEnabledForSlot(int slotIndex, String callingPackage);
 
     boolean isDataEnabledForApn(int apnType, int subId, String callingPackage);
diff --git a/telephony/java/com/google/android/mms/ContentType.java b/telephony/java/com/google/android/mms/ContentType.java
new file mode 100644
index 0000000..12e4b7e
--- /dev/null
+++ b/telephony/java/com/google/android/mms/ContentType.java
@@ -0,0 +1,247 @@
+/*
+ * Copyright (C) 2007-2008 Esmertec AG.
+ * Copyright (C) 2007-2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import java.util.ArrayList;
+
+public class ContentType {
+    public static final String MMS_MESSAGE       = "application/vnd.wap.mms-message";
+    // The phony content type for generic PDUs (e.g. ReadOrig.ind,
+    // Notification.ind, Delivery.ind).
+    public static final String MMS_GENERIC       = "application/vnd.wap.mms-generic";
+    public static final String MULTIPART_MIXED   = "application/vnd.wap.multipart.mixed";
+    public static final String MULTIPART_RELATED = "application/vnd.wap.multipart.related";
+    public static final String MULTIPART_ALTERNATIVE = "application/vnd.wap.multipart.alternative";
+
+    public static final String TEXT_PLAIN        = "text/plain";
+    public static final String TEXT_HTML         = "text/html";
+    public static final String TEXT_VCALENDAR    = "text/x-vCalendar";
+    public static final String TEXT_VCARD        = "text/x-vCard";
+
+    public static final String IMAGE_UNSPECIFIED = "image/*";
+    public static final String IMAGE_JPEG        = "image/jpeg";
+    public static final String IMAGE_JPG         = "image/jpg";
+    public static final String IMAGE_GIF         = "image/gif";
+    public static final String IMAGE_WBMP        = "image/vnd.wap.wbmp";
+    public static final String IMAGE_PNG         = "image/png";
+    public static final String IMAGE_X_MS_BMP    = "image/x-ms-bmp";
+
+    public static final String AUDIO_UNSPECIFIED = "audio/*";
+    public static final String AUDIO_AAC         = "audio/aac";
+    public static final String AUDIO_AMR         = "audio/amr";
+    public static final String AUDIO_IMELODY     = "audio/imelody";
+    public static final String AUDIO_MID         = "audio/mid";
+    public static final String AUDIO_MIDI        = "audio/midi";
+    public static final String AUDIO_MP3         = "audio/mp3";
+    public static final String AUDIO_MPEG3       = "audio/mpeg3";
+    public static final String AUDIO_MPEG        = "audio/mpeg";
+    public static final String AUDIO_MPG         = "audio/mpg";
+    public static final String AUDIO_MP4         = "audio/mp4";
+    public static final String AUDIO_X_MID       = "audio/x-mid";
+    public static final String AUDIO_X_MIDI      = "audio/x-midi";
+    public static final String AUDIO_X_MP3       = "audio/x-mp3";
+    public static final String AUDIO_X_MPEG3     = "audio/x-mpeg3";
+    public static final String AUDIO_X_MPEG      = "audio/x-mpeg";
+    public static final String AUDIO_X_MPG       = "audio/x-mpg";
+    public static final String AUDIO_3GPP        = "audio/3gpp";
+    public static final String AUDIO_X_WAV       = "audio/x-wav";
+    public static final String AUDIO_OGG         = "application/ogg";
+    public static final String AUDIO_OGG2        = "audio/ogg";
+
+    public static final String VIDEO_UNSPECIFIED = "video/*";
+    public static final String VIDEO_3GPP        = "video/3gpp";
+    public static final String VIDEO_3G2         = "video/3gpp2";
+    public static final String VIDEO_H263        = "video/h263";
+    public static final String VIDEO_MP4         = "video/mp4";
+
+    public static final String APP_SMIL          = "application/smil";
+    public static final String APP_WAP_XHTML     = "application/vnd.wap.xhtml+xml";
+    public static final String APP_XHTML         = "application/xhtml+xml";
+
+    public static final String APP_DRM_CONTENT   = "application/vnd.oma.drm.content";
+    public static final String APP_DRM_MESSAGE   = "application/vnd.oma.drm.message";
+
+    private static final ArrayList<String> sSupportedContentTypes = new ArrayList<String>();
+    private static final ArrayList<String> sSupportedImageTypes = new ArrayList<String>();
+    private static final ArrayList<String> sSupportedAudioTypes = new ArrayList<String>();
+    private static final ArrayList<String> sSupportedVideoTypes = new ArrayList<String>();
+
+    static {
+        sSupportedContentTypes.add(TEXT_PLAIN);
+        sSupportedContentTypes.add(TEXT_HTML);
+        sSupportedContentTypes.add(TEXT_VCALENDAR);
+        sSupportedContentTypes.add(TEXT_VCARD);
+
+        sSupportedContentTypes.add(IMAGE_JPEG);
+        sSupportedContentTypes.add(IMAGE_GIF);
+        sSupportedContentTypes.add(IMAGE_WBMP);
+        sSupportedContentTypes.add(IMAGE_PNG);
+        sSupportedContentTypes.add(IMAGE_JPG);
+        sSupportedContentTypes.add(IMAGE_X_MS_BMP);
+        //supportedContentTypes.add(IMAGE_SVG); not yet supported.
+
+        sSupportedContentTypes.add(AUDIO_AAC);
+        sSupportedContentTypes.add(AUDIO_AMR);
+        sSupportedContentTypes.add(AUDIO_IMELODY);
+        sSupportedContentTypes.add(AUDIO_MID);
+        sSupportedContentTypes.add(AUDIO_MIDI);
+        sSupportedContentTypes.add(AUDIO_MP3);
+        sSupportedContentTypes.add(AUDIO_MP4);
+        sSupportedContentTypes.add(AUDIO_MPEG3);
+        sSupportedContentTypes.add(AUDIO_MPEG);
+        sSupportedContentTypes.add(AUDIO_MPG);
+        sSupportedContentTypes.add(AUDIO_X_MID);
+        sSupportedContentTypes.add(AUDIO_X_MIDI);
+        sSupportedContentTypes.add(AUDIO_X_MP3);
+        sSupportedContentTypes.add(AUDIO_X_MPEG3);
+        sSupportedContentTypes.add(AUDIO_X_MPEG);
+        sSupportedContentTypes.add(AUDIO_X_MPG);
+        sSupportedContentTypes.add(AUDIO_X_WAV);
+        sSupportedContentTypes.add(AUDIO_3GPP);
+        sSupportedContentTypes.add(AUDIO_OGG);
+        sSupportedContentTypes.add(AUDIO_OGG2);
+
+        sSupportedContentTypes.add(VIDEO_3GPP);
+        sSupportedContentTypes.add(VIDEO_3G2);
+        sSupportedContentTypes.add(VIDEO_H263);
+        sSupportedContentTypes.add(VIDEO_MP4);
+
+        sSupportedContentTypes.add(APP_SMIL);
+        sSupportedContentTypes.add(APP_WAP_XHTML);
+        sSupportedContentTypes.add(APP_XHTML);
+
+        sSupportedContentTypes.add(APP_DRM_CONTENT);
+        sSupportedContentTypes.add(APP_DRM_MESSAGE);
+
+        // add supported image types
+        sSupportedImageTypes.add(IMAGE_JPEG);
+        sSupportedImageTypes.add(IMAGE_GIF);
+        sSupportedImageTypes.add(IMAGE_WBMP);
+        sSupportedImageTypes.add(IMAGE_PNG);
+        sSupportedImageTypes.add(IMAGE_JPG);
+        sSupportedImageTypes.add(IMAGE_X_MS_BMP);
+
+        // add supported audio types
+        sSupportedAudioTypes.add(AUDIO_AAC);
+        sSupportedAudioTypes.add(AUDIO_AMR);
+        sSupportedAudioTypes.add(AUDIO_IMELODY);
+        sSupportedAudioTypes.add(AUDIO_MID);
+        sSupportedAudioTypes.add(AUDIO_MIDI);
+        sSupportedAudioTypes.add(AUDIO_MP3);
+        sSupportedAudioTypes.add(AUDIO_MPEG3);
+        sSupportedAudioTypes.add(AUDIO_MPEG);
+        sSupportedAudioTypes.add(AUDIO_MPG);
+        sSupportedAudioTypes.add(AUDIO_MP4);
+        sSupportedAudioTypes.add(AUDIO_X_MID);
+        sSupportedAudioTypes.add(AUDIO_X_MIDI);
+        sSupportedAudioTypes.add(AUDIO_X_MP3);
+        sSupportedAudioTypes.add(AUDIO_X_MPEG3);
+        sSupportedAudioTypes.add(AUDIO_X_MPEG);
+        sSupportedAudioTypes.add(AUDIO_X_MPG);
+        sSupportedAudioTypes.add(AUDIO_X_WAV);
+        sSupportedAudioTypes.add(AUDIO_3GPP);
+        sSupportedAudioTypes.add(AUDIO_OGG);
+        sSupportedAudioTypes.add(AUDIO_OGG2);
+
+        // add supported video types
+        sSupportedVideoTypes.add(VIDEO_3GPP);
+        sSupportedVideoTypes.add(VIDEO_3G2);
+        sSupportedVideoTypes.add(VIDEO_H263);
+        sSupportedVideoTypes.add(VIDEO_MP4);
+    }
+
+    // This class should never be instantiated.
+    private ContentType() {
+    }
+
+    @UnsupportedAppUsage
+    public static boolean isSupportedType(String contentType) {
+        return (null != contentType) && sSupportedContentTypes.contains(contentType);
+    }
+
+    @UnsupportedAppUsage
+    public static boolean isSupportedImageType(String contentType) {
+        return isImageType(contentType) && isSupportedType(contentType);
+    }
+
+    @UnsupportedAppUsage
+    public static boolean isSupportedAudioType(String contentType) {
+        return isAudioType(contentType) && isSupportedType(contentType);
+    }
+
+    @UnsupportedAppUsage
+    public static boolean isSupportedVideoType(String contentType) {
+        return isVideoType(contentType) && isSupportedType(contentType);
+    }
+
+    @UnsupportedAppUsage
+    public static boolean isTextType(String contentType) {
+        return (null != contentType) && contentType.startsWith("text/");
+    }
+
+    @UnsupportedAppUsage
+    public static boolean isImageType(String contentType) {
+        return (null != contentType) && contentType.startsWith("image/");
+    }
+
+    @UnsupportedAppUsage
+    public static boolean isAudioType(String contentType) {
+        return (null != contentType) && contentType.startsWith("audio/");
+    }
+
+    @UnsupportedAppUsage
+    public static boolean isVideoType(String contentType) {
+        return (null != contentType) && contentType.startsWith("video/");
+    }
+
+    @UnsupportedAppUsage
+    public static boolean isDrmType(String contentType) {
+        return (null != contentType)
+                && (contentType.equals(APP_DRM_CONTENT)
+                        || contentType.equals(APP_DRM_MESSAGE));
+    }
+
+    public static boolean isUnspecified(String contentType) {
+        return (null != contentType) && contentType.endsWith("*");
+    }
+
+    @UnsupportedAppUsage
+    @SuppressWarnings("unchecked")
+    public static ArrayList<String> getImageTypes() {
+        return (ArrayList<String>) sSupportedImageTypes.clone();
+    }
+
+    @UnsupportedAppUsage
+    @SuppressWarnings("unchecked")
+    public static ArrayList<String> getAudioTypes() {
+        return (ArrayList<String>) sSupportedAudioTypes.clone();
+    }
+
+    @UnsupportedAppUsage
+    @SuppressWarnings("unchecked")
+    public static ArrayList<String> getVideoTypes() {
+        return (ArrayList<String>) sSupportedVideoTypes.clone();
+    }
+
+    @SuppressWarnings("unchecked")
+    public static ArrayList<String> getSupportedTypes() {
+        return (ArrayList<String>) sSupportedContentTypes.clone();
+    }
+}
diff --git a/telephony/java/com/google/android/mms/InvalidHeaderValueException.java b/telephony/java/com/google/android/mms/InvalidHeaderValueException.java
new file mode 100644
index 0000000..2836c30
--- /dev/null
+++ b/telephony/java/com/google/android/mms/InvalidHeaderValueException.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+/**
+ * Thrown when an invalid header value was set.
+ */
+public class InvalidHeaderValueException extends MmsException {
+    private static final long serialVersionUID = -2053384496042052262L;
+
+    /**
+     * Constructs an InvalidHeaderValueException with no detailed message.
+     */
+    public InvalidHeaderValueException() {
+        super();
+    }
+
+    /**
+     * Constructs an InvalidHeaderValueException with the specified detailed message.
+     *
+     * @param message the detailed message.
+     */
+    @UnsupportedAppUsage
+    public InvalidHeaderValueException(String message) {
+        super(message);
+    }
+}
diff --git a/telephony/java/com/google/android/mms/MmsException.java b/telephony/java/com/google/android/mms/MmsException.java
new file mode 100644
index 0000000..5be33ed
--- /dev/null
+++ b/telephony/java/com/google/android/mms/MmsException.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+/**
+ * A generic exception that is thrown by the Mms client.
+ */
+public class MmsException extends Exception {
+    private static final long serialVersionUID = -7323249827281485390L;
+
+    /**
+     * Creates a new MmsException.
+     */
+    @UnsupportedAppUsage
+    public MmsException() {
+        super();
+    }
+
+    /**
+     * Creates a new MmsException with the specified detail message.
+     *
+     * @param message the detail message.
+     */
+    @UnsupportedAppUsage
+    public MmsException(String message) {
+        super(message);
+    }
+
+    /**
+     * Creates a new MmsException with the specified cause.
+     *
+     * @param cause the cause.
+     */
+    @UnsupportedAppUsage
+    public MmsException(Throwable cause) {
+        super(cause);
+    }
+
+    /**
+     * Creates a new MmsException with the specified detail message and cause.
+     *
+     * @param message the detail message.
+     * @param cause the cause.
+     */
+    @UnsupportedAppUsage
+    public MmsException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}
diff --git a/telephony/java/com/google/android/mms/package.html b/telephony/java/com/google/android/mms/package.html
new file mode 100755
index 0000000..c9f96a6
--- /dev/null
+++ b/telephony/java/com/google/android/mms/package.html
@@ -0,0 +1,5 @@
+<body>
+
+{@hide}
+
+</body>
diff --git a/telephony/java/com/google/android/mms/pdu/AcknowledgeInd.java b/telephony/java/com/google/android/mms/pdu/AcknowledgeInd.java
new file mode 100644
index 0000000..ae447d7
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/AcknowledgeInd.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import com.google.android.mms.InvalidHeaderValueException;
+
+/**
+ * M-Acknowledge.ind PDU.
+ */
+public class AcknowledgeInd extends GenericPdu {
+    /**
+     * Constructor, used when composing a M-Acknowledge.ind pdu.
+     *
+     * @param mmsVersion current viersion of mms
+     * @param transactionId the transaction-id value
+     * @throws InvalidHeaderValueException if parameters are invalid.
+     *         NullPointerException if transactionId is null.
+     */
+    @UnsupportedAppUsage
+    public AcknowledgeInd(int mmsVersion, byte[] transactionId)
+            throws InvalidHeaderValueException {
+        super();
+
+        setMessageType(PduHeaders.MESSAGE_TYPE_ACKNOWLEDGE_IND);
+        setMmsVersion(mmsVersion);
+        setTransactionId(transactionId);
+    }
+
+    /**
+     * Constructor with given headers.
+     *
+     * @param headers Headers for this PDU.
+     */
+    @UnsupportedAppUsage
+    AcknowledgeInd(PduHeaders headers) {
+        super(headers);
+    }
+
+    /**
+     * Get X-Mms-Report-Allowed field value.
+     *
+     * @return the X-Mms-Report-Allowed value
+     */
+    public int getReportAllowed() {
+        return mPduHeaders.getOctet(PduHeaders.REPORT_ALLOWED);
+    }
+
+    /**
+     * Set X-Mms-Report-Allowed field value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     */
+    @UnsupportedAppUsage
+    public void setReportAllowed(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.REPORT_ALLOWED);
+    }
+
+    /**
+     * Get X-Mms-Transaction-Id field value.
+     *
+     * @return the X-Mms-Report-Allowed value
+     */
+    public byte[] getTransactionId() {
+        return mPduHeaders.getTextString(PduHeaders.TRANSACTION_ID);
+    }
+
+    /**
+     * Set X-Mms-Transaction-Id field value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void setTransactionId(byte[] value) {
+        mPduHeaders.setTextString(value, PduHeaders.TRANSACTION_ID);
+    }
+}
diff --git a/telephony/java/com/google/android/mms/pdu/Base64.java b/telephony/java/com/google/android/mms/pdu/Base64.java
new file mode 100644
index 0000000..483fa7f
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/Base64.java
@@ -0,0 +1,170 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+public class Base64 {
+    /**
+     * Used to get the number of Quadruples.
+     */
+    static final int FOURBYTE = 4;
+
+    /**
+     * Byte used to pad output.
+     */
+    static final byte PAD = (byte) '=';
+
+    /**
+     * The base length.
+     */
+    static final int BASELENGTH = 255;
+
+    // Create arrays to hold the base64 characters
+    private static byte[] base64Alphabet = new byte[BASELENGTH];
+
+    // Populating the character arrays
+    static {
+        for (int i = 0; i < BASELENGTH; i++) {
+            base64Alphabet[i] = (byte) -1;
+        }
+        for (int i = 'Z'; i >= 'A'; i--) {
+            base64Alphabet[i] = (byte) (i - 'A');
+        }
+        for (int i = 'z'; i >= 'a'; i--) {
+            base64Alphabet[i] = (byte) (i - 'a' + 26);
+        }
+        for (int i = '9'; i >= '0'; i--) {
+            base64Alphabet[i] = (byte) (i - '0' + 52);
+        }
+
+        base64Alphabet['+'] = 62;
+        base64Alphabet['/'] = 63;
+    }
+
+    /**
+     * Decodes Base64 data into octects
+     *
+     * @param base64Data Byte array containing Base64 data
+     * @return Array containing decoded data.
+     */
+    @UnsupportedAppUsage
+    public static byte[] decodeBase64(byte[] base64Data) {
+        // RFC 2045 requires that we discard ALL non-Base64 characters
+        base64Data = discardNonBase64(base64Data);
+
+        // handle the edge case, so we don't have to worry about it later
+        if (base64Data.length == 0) {
+            return new byte[0];
+        }
+
+        int numberQuadruple = base64Data.length / FOURBYTE;
+        byte decodedData[] = null;
+        byte b1 = 0, b2 = 0, b3 = 0, b4 = 0, marker0 = 0, marker1 = 0;
+
+        // Throw away anything not in base64Data
+
+        int encodedIndex = 0;
+        int dataIndex = 0;
+        {
+            // this sizes the output array properly - rlw
+            int lastData = base64Data.length;
+            // ignore the '=' padding
+            while (base64Data[lastData - 1] == PAD) {
+                if (--lastData == 0) {
+                    return new byte[0];
+                }
+            }
+            decodedData = new byte[lastData - numberQuadruple];
+        }
+
+        for (int i = 0; i < numberQuadruple; i++) {
+            dataIndex = i * 4;
+            marker0 = base64Data[dataIndex + 2];
+            marker1 = base64Data[dataIndex + 3];
+
+            b1 = base64Alphabet[base64Data[dataIndex]];
+            b2 = base64Alphabet[base64Data[dataIndex + 1]];
+
+            if (marker0 != PAD && marker1 != PAD) {
+                //No PAD e.g 3cQl
+                b3 = base64Alphabet[marker0];
+                b4 = base64Alphabet[marker1];
+
+                decodedData[encodedIndex] = (byte) (b1 << 2 | b2 >> 4);
+                decodedData[encodedIndex + 1] =
+                    (byte) (((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf));
+                decodedData[encodedIndex + 2] = (byte) (b3 << 6 | b4);
+            } else if (marker0 == PAD) {
+                //Two PAD e.g. 3c[Pad][Pad]
+                decodedData[encodedIndex] = (byte) (b1 << 2 | b2 >> 4);
+            } else if (marker1 == PAD) {
+                //One PAD e.g. 3cQ[Pad]
+                b3 = base64Alphabet[marker0];
+
+                decodedData[encodedIndex] = (byte) (b1 << 2 | b2 >> 4);
+                decodedData[encodedIndex + 1] =
+                    (byte) (((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf));
+            }
+            encodedIndex += 3;
+        }
+        return decodedData;
+    }
+
+    /**
+     * Check octect whether it is a base64 encoding.
+     *
+     * @param octect to be checked byte
+     * @return ture if it is base64 encoding, false otherwise.
+     */
+    private static boolean isBase64(byte octect) {
+        if (octect == PAD) {
+            return true;
+        } else if (base64Alphabet[octect] == -1) {
+            return false;
+        } else {
+            return true;
+        }
+    }
+
+    /**
+     * Discards any characters outside of the base64 alphabet, per
+     * the requirements on page 25 of RFC 2045 - "Any characters
+     * outside of the base64 alphabet are to be ignored in base64
+     * encoded data."
+     *
+     * @param data The base-64 encoded data to groom
+     * @return The data, less non-base64 characters (see RFC 2045).
+     */
+    static byte[] discardNonBase64(byte[] data) {
+        byte groomedData[] = new byte[data.length];
+        int bytesCopied = 0;
+
+        for (int i = 0; i < data.length; i++) {
+            if (isBase64(data[i])) {
+                groomedData[bytesCopied++] = data[i];
+            }
+        }
+
+        byte packedData[] = new byte[bytesCopied];
+
+        System.arraycopy(groomedData, 0, packedData, 0, bytesCopied);
+
+        return packedData;
+    }
+}
diff --git a/telephony/java/com/google/android/mms/pdu/CharacterSets.java b/telephony/java/com/google/android/mms/pdu/CharacterSets.java
new file mode 100644
index 0000000..27da35e
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/CharacterSets.java
@@ -0,0 +1,176 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import java.io.UnsupportedEncodingException;
+import java.util.HashMap;
+
+public class CharacterSets {
+    /**
+     * IANA assigned MIB enum numbers.
+     *
+     * From wap-230-wsp-20010705-a.pdf
+     * Any-charset = <Octet 128>
+     * Equivalent to the special RFC2616 charset value "*"
+     */
+    public static final int ANY_CHARSET = 0x00;
+    public static final int US_ASCII    = 0x03;
+    public static final int ISO_8859_1  = 0x04;
+    public static final int ISO_8859_2  = 0x05;
+    public static final int ISO_8859_3  = 0x06;
+    public static final int ISO_8859_4  = 0x07;
+    public static final int ISO_8859_5  = 0x08;
+    public static final int ISO_8859_6  = 0x09;
+    public static final int ISO_8859_7  = 0x0A;
+    public static final int ISO_8859_8  = 0x0B;
+    public static final int ISO_8859_9  = 0x0C;
+    public static final int SHIFT_JIS   = 0x11;
+    public static final int UTF_8       = 0x6A;
+    public static final int BIG5        = 0x07EA;
+    public static final int UCS2        = 0x03E8;
+    public static final int UTF_16      = 0x03F7;
+
+    /**
+     * If the encoding of given data is unsupported, use UTF_8 to decode it.
+     */
+    public static final int DEFAULT_CHARSET = UTF_8;
+
+    /**
+     * Array of MIB enum numbers.
+     */
+    private static final int[] MIBENUM_NUMBERS = {
+        ANY_CHARSET,
+        US_ASCII,
+        ISO_8859_1,
+        ISO_8859_2,
+        ISO_8859_3,
+        ISO_8859_4,
+        ISO_8859_5,
+        ISO_8859_6,
+        ISO_8859_7,
+        ISO_8859_8,
+        ISO_8859_9,
+        SHIFT_JIS,
+        UTF_8,
+        BIG5,
+        UCS2,
+        UTF_16,
+    };
+
+    /**
+     * The Well-known-charset Mime name.
+     */
+    public static final String MIMENAME_ANY_CHARSET = "*";
+    public static final String MIMENAME_US_ASCII    = "us-ascii";
+    public static final String MIMENAME_ISO_8859_1  = "iso-8859-1";
+    public static final String MIMENAME_ISO_8859_2  = "iso-8859-2";
+    public static final String MIMENAME_ISO_8859_3  = "iso-8859-3";
+    public static final String MIMENAME_ISO_8859_4  = "iso-8859-4";
+    public static final String MIMENAME_ISO_8859_5  = "iso-8859-5";
+    public static final String MIMENAME_ISO_8859_6  = "iso-8859-6";
+    public static final String MIMENAME_ISO_8859_7  = "iso-8859-7";
+    public static final String MIMENAME_ISO_8859_8  = "iso-8859-8";
+    public static final String MIMENAME_ISO_8859_9  = "iso-8859-9";
+    public static final String MIMENAME_SHIFT_JIS   = "shift_JIS";
+    public static final String MIMENAME_UTF_8       = "utf-8";
+    public static final String MIMENAME_BIG5        = "big5";
+    public static final String MIMENAME_UCS2        = "iso-10646-ucs-2";
+    public static final String MIMENAME_UTF_16      = "utf-16";
+
+    public static final String DEFAULT_CHARSET_NAME = MIMENAME_UTF_8;
+
+    /**
+     * Array of the names of character sets.
+     */
+    private static final String[] MIME_NAMES = {
+        MIMENAME_ANY_CHARSET,
+        MIMENAME_US_ASCII,
+        MIMENAME_ISO_8859_1,
+        MIMENAME_ISO_8859_2,
+        MIMENAME_ISO_8859_3,
+        MIMENAME_ISO_8859_4,
+        MIMENAME_ISO_8859_5,
+        MIMENAME_ISO_8859_6,
+        MIMENAME_ISO_8859_7,
+        MIMENAME_ISO_8859_8,
+        MIMENAME_ISO_8859_9,
+        MIMENAME_SHIFT_JIS,
+        MIMENAME_UTF_8,
+        MIMENAME_BIG5,
+        MIMENAME_UCS2,
+        MIMENAME_UTF_16,
+    };
+
+    private static final HashMap<Integer, String> MIBENUM_TO_NAME_MAP;
+    private static final HashMap<String, Integer> NAME_TO_MIBENUM_MAP;
+
+    static {
+        // Create the HashMaps.
+        MIBENUM_TO_NAME_MAP = new HashMap<Integer, String>();
+        NAME_TO_MIBENUM_MAP = new HashMap<String, Integer>();
+        assert(MIBENUM_NUMBERS.length == MIME_NAMES.length);
+        int count = MIBENUM_NUMBERS.length - 1;
+        for(int i = 0; i <= count; i++) {
+            MIBENUM_TO_NAME_MAP.put(MIBENUM_NUMBERS[i], MIME_NAMES[i]);
+            NAME_TO_MIBENUM_MAP.put(MIME_NAMES[i], MIBENUM_NUMBERS[i]);
+        }
+    }
+
+    private CharacterSets() {} // Non-instantiatable
+
+    /**
+     * Map an MIBEnum number to the name of the charset which this number
+     * is assigned to by IANA.
+     *
+     * @param mibEnumValue An IANA assigned MIBEnum number.
+     * @return The name string of the charset.
+     * @throws UnsupportedEncodingException
+     */
+    @UnsupportedAppUsage
+    public static String getMimeName(int mibEnumValue)
+            throws UnsupportedEncodingException {
+        String name = MIBENUM_TO_NAME_MAP.get(mibEnumValue);
+        if (name == null) {
+            throw new UnsupportedEncodingException();
+        }
+        return name;
+    }
+
+    /**
+     * Map a well-known charset name to its assigned MIBEnum number.
+     *
+     * @param mimeName The charset name.
+     * @return The MIBEnum number assigned by IANA for this charset.
+     * @throws UnsupportedEncodingException
+     */
+    @UnsupportedAppUsage
+    public static int getMibEnumValue(String mimeName)
+            throws UnsupportedEncodingException {
+        if(null == mimeName) {
+            return -1;
+        }
+
+        Integer mibEnumValue = NAME_TO_MIBENUM_MAP.get(mimeName);
+        if (mibEnumValue == null) {
+            throw new UnsupportedEncodingException();
+        }
+        return mibEnumValue;
+    }
+}
diff --git a/telephony/java/com/google/android/mms/pdu/DeliveryInd.java b/telephony/java/com/google/android/mms/pdu/DeliveryInd.java
new file mode 100644
index 0000000..7093ac6
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/DeliveryInd.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import com.google.android.mms.InvalidHeaderValueException;
+
+/**
+ * M-Delivery.Ind Pdu.
+ */
+public class DeliveryInd extends GenericPdu {
+    /**
+     * Empty constructor.
+     * Since the Pdu corresponding to this class is constructed
+     * by the Proxy-Relay server, this class is only instantiated
+     * by the Pdu Parser.
+     *
+     * @throws InvalidHeaderValueException if error occurs.
+     */
+    public DeliveryInd() throws InvalidHeaderValueException {
+        super();
+        setMessageType(PduHeaders.MESSAGE_TYPE_DELIVERY_IND);
+    }
+
+    /**
+     * Constructor with given headers.
+     *
+     * @param headers Headers for this PDU.
+     */
+    @UnsupportedAppUsage
+    DeliveryInd(PduHeaders headers) {
+        super(headers);
+    }
+
+    /**
+     * Get Date value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public long getDate() {
+        return mPduHeaders.getLongInteger(PduHeaders.DATE);
+    }
+
+    /**
+     * Set Date value.
+     *
+     * @param value the value
+     */
+    public void setDate(long value) {
+        mPduHeaders.setLongInteger(value, PduHeaders.DATE);
+    }
+
+    /**
+     * Get Message-ID value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public byte[] getMessageId() {
+        return mPduHeaders.getTextString(PduHeaders.MESSAGE_ID);
+    }
+
+    /**
+     * Set Message-ID value.
+     *
+     * @param value the value, should not be null
+     * @throws NullPointerException if the value is null.
+     */
+    public void setMessageId(byte[] value) {
+        mPduHeaders.setTextString(value, PduHeaders.MESSAGE_ID);
+    }
+
+    /**
+     * Get Status value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public int getStatus() {
+        return mPduHeaders.getOctet(PduHeaders.STATUS);
+    }
+
+    /**
+     * Set Status value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     */
+    public void setStatus(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.STATUS);
+    }
+
+    /**
+     * Get To value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public EncodedStringValue[] getTo() {
+        return mPduHeaders.getEncodedStringValues(PduHeaders.TO);
+    }
+
+    /**
+     * set To value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    public void setTo(EncodedStringValue[] value) {
+        mPduHeaders.setEncodedStringValues(value, PduHeaders.TO);
+    }
+
+    /*
+     * Optional, not supported header fields:
+     *
+     *     public byte[] getApplicId() {return null;}
+     *     public void setApplicId(byte[] value) {}
+     *
+     *     public byte[] getAuxApplicId() {return null;}
+     *     public void getAuxApplicId(byte[] value) {}
+     *
+     *     public byte[] getReplyApplicId() {return 0x00;}
+     *     public void setReplyApplicId(byte[] value) {}
+     *
+     *     public EncodedStringValue getStatusText() {return null;}
+     *     public void setStatusText(EncodedStringValue value) {}
+     */
+}
diff --git a/telephony/java/com/google/android/mms/pdu/EncodedStringValue.java b/telephony/java/com/google/android/mms/pdu/EncodedStringValue.java
new file mode 100644
index 0000000..4166275
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/EncodedStringValue.java
@@ -0,0 +1,298 @@
+/*
+ * Copyright (C) 2007-2008 Esmertec AG.
+ * Copyright (C) 2007-2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import android.util.Log;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.util.ArrayList;
+
+/**
+ * Encoded-string-value = Text-string | Value-length Char-set Text-string
+ */
+public class EncodedStringValue implements Cloneable {
+    private static final String TAG = "EncodedStringValue";
+    private static final boolean DEBUG = false;
+    private static final boolean LOCAL_LOGV = false;
+
+    /**
+     * The Char-set value.
+     */
+    private int mCharacterSet;
+
+    /**
+     * The Text-string value.
+     */
+    private byte[] mData;
+
+    /**
+     * Constructor.
+     *
+     * @param charset the Char-set value
+     * @param data the Text-string value
+     * @throws NullPointerException if Text-string value is null.
+     */
+    @UnsupportedAppUsage
+    public EncodedStringValue(int charset, byte[] data) {
+        // TODO: CharSet needs to be validated against MIBEnum.
+        if(null == data) {
+            throw new NullPointerException("EncodedStringValue: Text-string is null.");
+        }
+
+        mCharacterSet = charset;
+        mData = new byte[data.length];
+        System.arraycopy(data, 0, mData, 0, data.length);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param data the Text-string value
+     * @throws NullPointerException if Text-string value is null.
+     */
+    @UnsupportedAppUsage
+    public EncodedStringValue(byte[] data) {
+        this(CharacterSets.DEFAULT_CHARSET, data);
+    }
+
+    @UnsupportedAppUsage
+    public EncodedStringValue(String data) {
+        try {
+            mData = data.getBytes(CharacterSets.DEFAULT_CHARSET_NAME);
+            mCharacterSet = CharacterSets.DEFAULT_CHARSET;
+        } catch (UnsupportedEncodingException e) {
+            Log.e(TAG, "Default encoding must be supported.", e);
+        }
+    }
+
+    /**
+     * Get Char-set value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public int getCharacterSet() {
+        return mCharacterSet;
+    }
+
+    /**
+     * Set Char-set value.
+     *
+     * @param charset the Char-set value
+     */
+    @UnsupportedAppUsage
+    public void setCharacterSet(int charset) {
+        // TODO: CharSet needs to be validated against MIBEnum.
+        mCharacterSet = charset;
+    }
+
+    /**
+     * Get Text-string value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public byte[] getTextString() {
+        byte[] byteArray = new byte[mData.length];
+
+        System.arraycopy(mData, 0, byteArray, 0, mData.length);
+        return byteArray;
+    }
+
+    /**
+     * Set Text-string value.
+     *
+     * @param textString the Text-string value
+     * @throws NullPointerException if Text-string value is null.
+     */
+    @UnsupportedAppUsage
+    public void setTextString(byte[] textString) {
+        if(null == textString) {
+            throw new NullPointerException("EncodedStringValue: Text-string is null.");
+        }
+
+        mData = new byte[textString.length];
+        System.arraycopy(textString, 0, mData, 0, textString.length);
+    }
+
+    /**
+     * Convert this object to a {@link java.lang.String}. If the encoding of
+     * the EncodedStringValue is null or unsupported, it will be
+     * treated as iso-8859-1 encoding.
+     *
+     * @return The decoded String.
+     */
+    @UnsupportedAppUsage
+    public String getString()  {
+        if (CharacterSets.ANY_CHARSET == mCharacterSet) {
+            return new String(mData); // system default encoding.
+        } else {
+            try {
+                String name = CharacterSets.getMimeName(mCharacterSet);
+                return new String(mData, name);
+            } catch (UnsupportedEncodingException e) {
+            	if (LOCAL_LOGV) {
+            		Log.v(TAG, e.getMessage(), e);
+            	}
+            	try {
+                    return new String(mData, CharacterSets.MIMENAME_ISO_8859_1);
+                } catch (UnsupportedEncodingException e2) {
+                    return new String(mData); // system default encoding.
+                }
+            }
+        }
+    }
+
+    /**
+     * Append to Text-string.
+     *
+     * @param textString the textString to append
+     * @throws NullPointerException if the text String is null
+     *                      or an IOException occurred.
+     */
+    @UnsupportedAppUsage
+    public void appendTextString(byte[] textString) {
+        if(null == textString) {
+            throw new NullPointerException("Text-string is null.");
+        }
+
+        if(null == mData) {
+            mData = new byte[textString.length];
+            System.arraycopy(textString, 0, mData, 0, textString.length);
+        } else {
+            ByteArrayOutputStream newTextString = new ByteArrayOutputStream();
+            try {
+                newTextString.write(mData);
+                newTextString.write(textString);
+            } catch (IOException e) {
+                e.printStackTrace();
+                throw new NullPointerException(
+                        "appendTextString: failed when write a new Text-string");
+            }
+
+            mData = newTextString.toByteArray();
+        }
+    }
+
+    /*
+     * (non-Javadoc)
+     * @see java.lang.Object#clone()
+     */
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        super.clone();
+        int len = mData.length;
+        byte[] dstBytes = new byte[len];
+        System.arraycopy(mData, 0, dstBytes, 0, len);
+
+        try {
+            return new EncodedStringValue(mCharacterSet, dstBytes);
+        } catch (Exception e) {
+            Log.e(TAG, "failed to clone an EncodedStringValue: " + this);
+            e.printStackTrace();
+            throw new CloneNotSupportedException(e.getMessage());
+        }
+    }
+
+    /**
+     * Split this encoded string around matches of the given pattern.
+     *
+     * @param pattern the delimiting pattern
+     * @return the array of encoded strings computed by splitting this encoded
+     *         string around matches of the given pattern
+     */
+    public EncodedStringValue[] split(String pattern) {
+        String[] temp = getString().split(pattern);
+        EncodedStringValue[] ret = new EncodedStringValue[temp.length];
+        for (int i = 0; i < ret.length; ++i) {
+            try {
+                ret[i] = new EncodedStringValue(mCharacterSet,
+                        temp[i].getBytes());
+            } catch (NullPointerException e) {
+                // Can't arrive here
+                return null;
+            }
+        }
+        return ret;
+    }
+
+    /**
+     * Extract an EncodedStringValue[] from a given String.
+     */
+    @UnsupportedAppUsage
+    public static EncodedStringValue[] extract(String src) {
+        String[] values = src.split(";");
+
+        ArrayList<EncodedStringValue> list = new ArrayList<EncodedStringValue>();
+        for (int i = 0; i < values.length; i++) {
+            if (values[i].length() > 0) {
+                list.add(new EncodedStringValue(values[i]));
+            }
+        }
+
+        int len = list.size();
+        if (len > 0) {
+            return list.toArray(new EncodedStringValue[len]);
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * Concatenate an EncodedStringValue[] into a single String.
+     */
+    @UnsupportedAppUsage
+    public static String concat(EncodedStringValue[] addr) {
+        StringBuilder sb = new StringBuilder();
+        int maxIndex = addr.length - 1;
+        for (int i = 0; i <= maxIndex; i++) {
+            sb.append(addr[i].getString());
+            if (i < maxIndex) {
+                sb.append(";");
+            }
+        }
+
+        return sb.toString();
+    }
+
+    @UnsupportedAppUsage
+    public static EncodedStringValue copy(EncodedStringValue value) {
+        if (value == null) {
+            return null;
+        }
+
+        return new EncodedStringValue(value.mCharacterSet, value.mData);
+    }
+    
+    @UnsupportedAppUsage
+    public static EncodedStringValue[] encodeStrings(String[] array) {
+        int count = array.length;
+        if (count > 0) {
+            EncodedStringValue[] encodedArray = new EncodedStringValue[count];
+            for (int i = 0; i < count; i++) {
+                encodedArray[i] = new EncodedStringValue(array[i]);
+            }
+            return encodedArray;
+        }
+        return null;
+    }
+}
diff --git a/telephony/java/com/google/android/mms/pdu/GenericPdu.java b/telephony/java/com/google/android/mms/pdu/GenericPdu.java
new file mode 100644
index 0000000..ebf16ac
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/GenericPdu.java
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import com.google.android.mms.InvalidHeaderValueException;
+
+public class GenericPdu {
+    /**
+     * The headers of pdu.
+     */
+    @UnsupportedAppUsage
+    PduHeaders mPduHeaders = null;
+
+    /**
+     * Constructor.
+     */
+    @UnsupportedAppUsage
+    public GenericPdu() {
+        mPduHeaders = new PduHeaders();
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param headers Headers for this PDU.
+     */
+    GenericPdu(PduHeaders headers) {
+        mPduHeaders = headers;
+    }
+
+    /**
+     * Get the headers of this PDU.
+     *
+     * @return A PduHeaders of this PDU.
+     */
+    @UnsupportedAppUsage
+    PduHeaders getPduHeaders() {
+        return mPduHeaders;
+    }
+
+    /**
+     * Get X-Mms-Message-Type field value.
+     *
+     * @return the X-Mms-Report-Allowed value
+     */
+    @UnsupportedAppUsage
+    public int getMessageType() {
+        return mPduHeaders.getOctet(PduHeaders.MESSAGE_TYPE);
+    }
+
+    /**
+     * Set X-Mms-Message-Type field value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     *         RuntimeException if field's value is not Octet.
+     */
+    @UnsupportedAppUsage
+    public void setMessageType(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.MESSAGE_TYPE);
+    }
+
+    /**
+     * Get X-Mms-MMS-Version field value.
+     *
+     * @return the X-Mms-MMS-Version value
+     */
+    public int getMmsVersion() {
+        return mPduHeaders.getOctet(PduHeaders.MMS_VERSION);
+    }
+
+    /**
+     * Set X-Mms-MMS-Version field value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     *         RuntimeException if field's value is not Octet.
+     */
+    public void setMmsVersion(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.MMS_VERSION);
+    }
+
+    /**
+     * Get From value.
+     * From-value = Value-length
+     *      (Address-present-token Encoded-string-value | Insert-address-token)
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public EncodedStringValue getFrom() {
+       return mPduHeaders.getEncodedStringValue(PduHeaders.FROM);
+    }
+
+    /**
+     * Set From value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void setFrom(EncodedStringValue value) {
+        mPduHeaders.setEncodedStringValue(value, PduHeaders.FROM);
+    }
+}
diff --git a/telephony/java/com/google/android/mms/pdu/MultimediaMessagePdu.java b/telephony/java/com/google/android/mms/pdu/MultimediaMessagePdu.java
new file mode 100644
index 0000000..e108f76
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/MultimediaMessagePdu.java
@@ -0,0 +1,164 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import com.google.android.mms.InvalidHeaderValueException;
+
+/**
+ * Multimedia message PDU.
+ */
+public class MultimediaMessagePdu extends GenericPdu{
+    /**
+     * The body.
+     */
+    private PduBody mMessageBody;
+
+    /**
+     * Constructor.
+     */
+    @UnsupportedAppUsage
+    public MultimediaMessagePdu() {
+        super();
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param header the header of this PDU
+     * @param body the body of this PDU
+     */
+    @UnsupportedAppUsage
+    public MultimediaMessagePdu(PduHeaders header, PduBody body) {
+        super(header);
+        mMessageBody = body;
+    }
+
+    /**
+     * Constructor with given headers.
+     *
+     * @param headers Headers for this PDU.
+     */
+    MultimediaMessagePdu(PduHeaders headers) {
+        super(headers);
+    }
+
+    /**
+     * Get body of the PDU.
+     *
+     * @return the body
+     */
+    @UnsupportedAppUsage
+    public PduBody getBody() {
+        return mMessageBody;
+    }
+
+    /**
+     * Set body of the PDU.
+     *
+     * @param body the body
+     */
+    @UnsupportedAppUsage
+    public void setBody(PduBody body) {
+        mMessageBody = body;
+    }
+
+    /**
+     * Get subject.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public EncodedStringValue getSubject() {
+        return mPduHeaders.getEncodedStringValue(PduHeaders.SUBJECT);
+    }
+
+    /**
+     * Set subject.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void setSubject(EncodedStringValue value) {
+        mPduHeaders.setEncodedStringValue(value, PduHeaders.SUBJECT);
+    }
+
+    /**
+     * Get To value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public EncodedStringValue[] getTo() {
+        return mPduHeaders.getEncodedStringValues(PduHeaders.TO);
+    }
+
+    /**
+     * Add a "To" value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void addTo(EncodedStringValue value) {
+        mPduHeaders.appendEncodedStringValue(value, PduHeaders.TO);
+    }
+
+    /**
+     * Get X-Mms-Priority value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public int getPriority() {
+        return mPduHeaders.getOctet(PduHeaders.PRIORITY);
+    }
+
+    /**
+     * Set X-Mms-Priority value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     */
+    @UnsupportedAppUsage
+    public void setPriority(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.PRIORITY);
+    }
+
+    /**
+     * Get Date value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public long getDate() {
+        return mPduHeaders.getLongInteger(PduHeaders.DATE);
+    }
+
+    /**
+     * Set Date value in seconds.
+     *
+     * @param value the value
+     */
+    @UnsupportedAppUsage
+    public void setDate(long value) {
+        mPduHeaders.setLongInteger(value, PduHeaders.DATE);
+    }
+}
diff --git a/telephony/java/com/google/android/mms/pdu/NotificationInd.java b/telephony/java/com/google/android/mms/pdu/NotificationInd.java
new file mode 100644
index 0000000..b561bd4
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/NotificationInd.java
@@ -0,0 +1,307 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import com.google.android.mms.InvalidHeaderValueException;
+
+/**
+ * M-Notification.ind PDU.
+ */
+public class NotificationInd extends GenericPdu {
+    /**
+     * Empty constructor.
+     * Since the Pdu corresponding to this class is constructed
+     * by the Proxy-Relay server, this class is only instantiated
+     * by the Pdu Parser.
+     *
+     * @throws InvalidHeaderValueException if error occurs.
+     *         RuntimeException if an undeclared error occurs.
+     */
+    @UnsupportedAppUsage
+    public NotificationInd() throws InvalidHeaderValueException {
+        super();
+        setMessageType(PduHeaders.MESSAGE_TYPE_NOTIFICATION_IND);
+    }
+
+    /**
+     * Constructor with given headers.
+     *
+     * @param headers Headers for this PDU.
+     */
+    @UnsupportedAppUsage
+    NotificationInd(PduHeaders headers) {
+        super(headers);
+    }
+
+    /**
+     * Get X-Mms-Content-Class Value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public int getContentClass() {
+        return mPduHeaders.getOctet(PduHeaders.CONTENT_CLASS);
+    }
+
+    /**
+     * Set X-Mms-Content-Class Value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     *         RuntimeException if an undeclared error occurs.
+     */
+    @UnsupportedAppUsage
+    public void setContentClass(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.CONTENT_CLASS);
+    }
+
+    /**
+     * Get X-Mms-Content-Location value.
+     * When used in a PDU other than M-Mbox-Delete.conf and M-Delete.conf:
+     * Content-location-value = Uri-value
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public byte[] getContentLocation() {
+        return mPduHeaders.getTextString(PduHeaders.CONTENT_LOCATION);
+    }
+
+    /**
+     * Set X-Mms-Content-Location value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     *         RuntimeException if an undeclared error occurs.
+     */
+    @UnsupportedAppUsage
+    public void setContentLocation(byte[] value) {
+        mPduHeaders.setTextString(value, PduHeaders.CONTENT_LOCATION);
+    }
+
+    /**
+     * Get X-Mms-Expiry value.
+     *
+     * Expiry-value = Value-length
+     *      (Absolute-token Date-value | Relative-token Delta-seconds-value)
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public long getExpiry() {
+        return mPduHeaders.getLongInteger(PduHeaders.EXPIRY);
+    }
+
+    /**
+     * Set X-Mms-Expiry value.
+     *
+     * @param value the value
+     * @throws RuntimeException if an undeclared error occurs.
+     */
+    @UnsupportedAppUsage
+    public void setExpiry(long value) {
+        mPduHeaders.setLongInteger(value, PduHeaders.EXPIRY);
+    }
+
+    /**
+     * Get From value.
+     * From-value = Value-length
+     *      (Address-present-token Encoded-string-value | Insert-address-token)
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public EncodedStringValue getFrom() {
+       return mPduHeaders.getEncodedStringValue(PduHeaders.FROM);
+    }
+
+    /**
+     * Set From value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     *         RuntimeException if an undeclared error occurs.
+     */
+    @UnsupportedAppUsage
+    public void setFrom(EncodedStringValue value) {
+        mPduHeaders.setEncodedStringValue(value, PduHeaders.FROM);
+    }
+
+    /**
+     * Get X-Mms-Message-Class value.
+     * Message-class-value = Class-identifier | Token-text
+     * Class-identifier = Personal | Advertisement | Informational | Auto
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public byte[] getMessageClass() {
+        return mPduHeaders.getTextString(PduHeaders.MESSAGE_CLASS);
+    }
+
+    /**
+     * Set X-Mms-Message-Class value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     *         RuntimeException if an undeclared error occurs.
+     */
+    @UnsupportedAppUsage
+    public void setMessageClass(byte[] value) {
+        mPduHeaders.setTextString(value, PduHeaders.MESSAGE_CLASS);
+    }
+
+    /**
+     * Get X-Mms-Message-Size value.
+     * Message-size-value = Long-integer
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public long getMessageSize() {
+        return mPduHeaders.getLongInteger(PduHeaders.MESSAGE_SIZE);
+    }
+
+    /**
+     * Set X-Mms-Message-Size value.
+     *
+     * @param value the value
+     * @throws RuntimeException if an undeclared error occurs.
+     */
+    @UnsupportedAppUsage
+    public void setMessageSize(long value) {
+        mPduHeaders.setLongInteger(value, PduHeaders.MESSAGE_SIZE);
+    }
+
+    /**
+     * Get subject.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public EncodedStringValue getSubject() {
+        return mPduHeaders.getEncodedStringValue(PduHeaders.SUBJECT);
+    }
+
+    /**
+     * Set subject.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     *         RuntimeException if an undeclared error occurs.
+     */
+    @UnsupportedAppUsage
+    public void setSubject(EncodedStringValue value) {
+        mPduHeaders.setEncodedStringValue(value, PduHeaders.SUBJECT);
+    }
+
+    /**
+     * Get X-Mms-Transaction-Id.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public byte[] getTransactionId() {
+        return mPduHeaders.getTextString(PduHeaders.TRANSACTION_ID);
+    }
+
+    /**
+     * Set X-Mms-Transaction-Id.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     *         RuntimeException if an undeclared error occurs.
+     */
+    @UnsupportedAppUsage
+    public void setTransactionId(byte[] value) {
+        mPduHeaders.setTextString(value, PduHeaders.TRANSACTION_ID);
+    }
+
+    /**
+     * Get X-Mms-Delivery-Report Value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public int getDeliveryReport() {
+        return mPduHeaders.getOctet(PduHeaders.DELIVERY_REPORT);
+    }
+
+    /**
+     * Set X-Mms-Delivery-Report Value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     *         RuntimeException if an undeclared error occurs.
+     */
+    @UnsupportedAppUsage
+    public void setDeliveryReport(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.DELIVERY_REPORT);
+    }
+
+    /*
+     * Optional, not supported header fields:
+     *
+     *     public byte[] getApplicId() {return null;}
+     *     public void setApplicId(byte[] value) {}
+     *
+     *     public byte[] getAuxApplicId() {return null;}
+     *     public void getAuxApplicId(byte[] value) {}
+     *
+     *     public byte getDrmContent() {return 0x00;}
+     *     public void setDrmContent(byte value) {}
+     *
+     *     public byte getDistributionIndicator() {return 0x00;}
+     *     public void setDistributionIndicator(byte value) {}
+     *
+     *     public ElementDescriptorValue getElementDescriptor() {return null;}
+     *     public void getElementDescriptor(ElementDescriptorValue value) {}
+     *
+     *     public byte getPriority() {return 0x00;}
+     *     public void setPriority(byte value) {}
+     *
+     *     public byte getRecommendedRetrievalMode() {return 0x00;}
+     *     public void setRecommendedRetrievalMode(byte value) {}
+     *
+     *     public byte getRecommendedRetrievalModeText() {return 0x00;}
+     *     public void setRecommendedRetrievalModeText(byte value) {}
+     *
+     *     public byte[] getReplaceId() {return 0x00;}
+     *     public void setReplaceId(byte[] value) {}
+     *
+     *     public byte[] getReplyApplicId() {return 0x00;}
+     *     public void setReplyApplicId(byte[] value) {}
+     *
+     *     public byte getReplyCharging() {return 0x00;}
+     *     public void setReplyCharging(byte value) {}
+     *
+     *     public byte getReplyChargingDeadline() {return 0x00;}
+     *     public void setReplyChargingDeadline(byte value) {}
+     *
+     *     public byte[] getReplyChargingId() {return 0x00;}
+     *     public void setReplyChargingId(byte[] value) {}
+     *
+     *     public long getReplyChargingSize() {return 0;}
+     *     public void setReplyChargingSize(long value) {}
+     *
+     *     public byte getStored() {return 0x00;}
+     *     public void setStored(byte value) {}
+     */
+}
diff --git a/telephony/java/com/google/android/mms/pdu/NotifyRespInd.java b/telephony/java/com/google/android/mms/pdu/NotifyRespInd.java
new file mode 100644
index 0000000..3c70f86
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/NotifyRespInd.java
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import com.google.android.mms.InvalidHeaderValueException;
+
+/**
+ * M-NofifyResp.ind PDU.
+ */
+public class NotifyRespInd extends GenericPdu {
+    /**
+     * Constructor, used when composing a M-NotifyResp.ind pdu.
+     *
+     * @param mmsVersion current version of mms
+     * @param transactionId the transaction-id value
+     * @param status the status value
+     * @throws InvalidHeaderValueException if parameters are invalid.
+     *         NullPointerException if transactionId is null.
+     *         RuntimeException if an undeclared error occurs.
+     */
+    @UnsupportedAppUsage
+    public NotifyRespInd(int mmsVersion,
+                         byte[] transactionId,
+                         int status) throws InvalidHeaderValueException {
+        super();
+        setMessageType(PduHeaders.MESSAGE_TYPE_NOTIFYRESP_IND);
+        setMmsVersion(mmsVersion);
+        setTransactionId(transactionId);
+        setStatus(status);
+    }
+
+    /**
+     * Constructor with given headers.
+     *
+     * @param headers Headers for this PDU.
+     */
+    @UnsupportedAppUsage
+    NotifyRespInd(PduHeaders headers) {
+        super(headers);
+    }
+
+    /**
+     * Get X-Mms-Report-Allowed field value.
+     *
+     * @return the X-Mms-Report-Allowed value
+     */
+    public int getReportAllowed() {
+        return mPduHeaders.getOctet(PduHeaders.REPORT_ALLOWED);
+    }
+
+    /**
+     * Set X-Mms-Report-Allowed field value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     *         RuntimeException if an undeclared error occurs.
+     */
+    @UnsupportedAppUsage
+    public void setReportAllowed(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.REPORT_ALLOWED);
+    }
+
+    /**
+     * Set X-Mms-Status field value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     *         RuntimeException if an undeclared error occurs.
+     */
+    @UnsupportedAppUsage
+    public void setStatus(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.STATUS);
+    }
+
+    /**
+     * GetX-Mms-Status field value.
+     *
+     * @return the X-Mms-Status value
+     */
+    public int getStatus() {
+        return mPduHeaders.getOctet(PduHeaders.STATUS);
+    }
+
+    /**
+     * Get X-Mms-Transaction-Id field value.
+     *
+     * @return the X-Mms-Report-Allowed value
+     */
+    public byte[] getTransactionId() {
+        return mPduHeaders.getTextString(PduHeaders.TRANSACTION_ID);
+    }
+
+    /**
+     * Set X-Mms-Transaction-Id field value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     *         RuntimeException if an undeclared error occurs.
+     */
+    @UnsupportedAppUsage
+    public void setTransactionId(byte[] value) {
+            mPduHeaders.setTextString(value, PduHeaders.TRANSACTION_ID);
+    }
+}
diff --git a/telephony/java/com/google/android/mms/pdu/PduBody.java b/telephony/java/com/google/android/mms/pdu/PduBody.java
new file mode 100644
index 0000000..51914e4
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/PduBody.java
@@ -0,0 +1,204 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Vector;
+
+public class PduBody {
+    private Vector<PduPart> mParts = null;
+
+    private Map<String, PduPart> mPartMapByContentId = null;
+    private Map<String, PduPart> mPartMapByContentLocation = null;
+    private Map<String, PduPart> mPartMapByName = null;
+    private Map<String, PduPart> mPartMapByFileName = null;
+
+    /**
+     * Constructor.
+     */
+    @UnsupportedAppUsage
+    public PduBody() {
+        mParts = new Vector<PduPart>();
+
+        mPartMapByContentId = new HashMap<String, PduPart>();
+        mPartMapByContentLocation  = new HashMap<String, PduPart>();
+        mPartMapByName = new HashMap<String, PduPart>();
+        mPartMapByFileName = new HashMap<String, PduPart>();
+    }
+
+    private void putPartToMaps(PduPart part) {
+        // Put part to mPartMapByContentId.
+        byte[] contentId = part.getContentId();
+        if(null != contentId) {
+            mPartMapByContentId.put(new String(contentId), part);
+        }
+
+        // Put part to mPartMapByContentLocation.
+        byte[] contentLocation = part.getContentLocation();
+        if(null != contentLocation) {
+            String clc = new String(contentLocation);
+            mPartMapByContentLocation.put(clc, part);
+        }
+
+        // Put part to mPartMapByName.
+        byte[] name = part.getName();
+        if(null != name) {
+            String clc = new String(name);
+            mPartMapByName.put(clc, part);
+        }
+
+        // Put part to mPartMapByFileName.
+        byte[] fileName = part.getFilename();
+        if(null != fileName) {
+            String clc = new String(fileName);
+            mPartMapByFileName.put(clc, part);
+        }
+    }
+
+    /**
+     * Appends the specified part to the end of this body.
+     *
+     * @param part part to be appended
+     * @return true when success, false when fail
+     * @throws NullPointerException when part is null
+     */
+    @UnsupportedAppUsage
+    public boolean addPart(PduPart part) {
+        if(null == part) {
+            throw new NullPointerException();
+        }
+
+        putPartToMaps(part);
+        return mParts.add(part);
+    }
+
+    /**
+     * Inserts the specified part at the specified position.
+     *
+     * @param index index at which the specified part is to be inserted
+     * @param part part to be inserted
+     * @throws NullPointerException when part is null
+     */
+    @UnsupportedAppUsage
+    public void addPart(int index, PduPart part) {
+        if(null == part) {
+            throw new NullPointerException();
+        }
+
+        putPartToMaps(part);
+        mParts.add(index, part);
+    }
+
+    /**
+     * Removes the part at the specified position.
+     *
+     * @param index index of the part to return
+     * @return part at the specified index
+     */
+    @UnsupportedAppUsage
+    public PduPart removePart(int index) {
+        return mParts.remove(index);
+    }
+
+    /**
+     * Remove all of the parts.
+     */
+    public void removeAll() {
+        mParts.clear();
+    }
+
+    /**
+     * Get the part at the specified position.
+     *
+     * @param index index of the part to return
+     * @return part at the specified index
+     */
+    @UnsupportedAppUsage
+    public PduPart getPart(int index) {
+        return mParts.get(index);
+    }
+
+    /**
+     * Get the index of the specified part.
+     *
+     * @param part the part object
+     * @return index the index of the first occurrence of the part in this body
+     */
+    @UnsupportedAppUsage
+    public int getPartIndex(PduPart part) {
+        return mParts.indexOf(part);
+    }
+
+    /**
+     * Get the number of parts.
+     *
+     * @return the number of parts
+     */
+    @UnsupportedAppUsage
+    public int getPartsNum() {
+        return mParts.size();
+    }
+
+    /**
+     * Get pdu part by content id.
+     *
+     * @param cid the value of content id.
+     * @return the pdu part.
+     */
+    @UnsupportedAppUsage
+    public PduPart getPartByContentId(String cid) {
+        return mPartMapByContentId.get(cid);
+    }
+
+    /**
+     * Get pdu part by Content-Location. Content-Location of part is
+     * the same as filename and name(param of content-type).
+     *
+     * @param fileName the value of filename.
+     * @return the pdu part.
+     */
+    @UnsupportedAppUsage
+    public PduPart getPartByContentLocation(String contentLocation) {
+        return mPartMapByContentLocation.get(contentLocation);
+    }
+
+    /**
+     * Get pdu part by name.
+     *
+     * @param fileName the value of filename.
+     * @return the pdu part.
+     */
+    @UnsupportedAppUsage
+    public PduPart getPartByName(String name) {
+        return mPartMapByName.get(name);
+    }
+
+    /**
+     * Get pdu part by filename.
+     *
+     * @param fileName the value of filename.
+     * @return the pdu part.
+     */
+    @UnsupportedAppUsage
+    public PduPart getPartByFileName(String filename) {
+        return mPartMapByFileName.get(filename);
+    }
+}
diff --git a/telephony/java/com/google/android/mms/pdu/PduComposer.java b/telephony/java/com/google/android/mms/pdu/PduComposer.java
new file mode 100644
index 0000000..e24bf21
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/PduComposer.java
@@ -0,0 +1,1229 @@
+/*
+ * Copyright (C) 2007-2008 Esmertec AG.
+ * Copyright (C) 2007-2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.text.TextUtils;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import java.io.ByteArrayOutputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Arrays;
+import java.util.HashMap;
+
+public class PduComposer {
+    /**
+     * Address type.
+     */
+    static private final int PDU_PHONE_NUMBER_ADDRESS_TYPE = 1;
+    static private final int PDU_EMAIL_ADDRESS_TYPE = 2;
+    static private final int PDU_IPV4_ADDRESS_TYPE = 3;
+    static private final int PDU_IPV6_ADDRESS_TYPE = 4;
+    static private final int PDU_UNKNOWN_ADDRESS_TYPE = 5;
+
+    /**
+     * Address regular expression string.
+     */
+    static final String REGEXP_PHONE_NUMBER_ADDRESS_TYPE = "\\+?[0-9|\\.|\\-]+";
+    static final String REGEXP_EMAIL_ADDRESS_TYPE = "[a-zA-Z| ]*\\<{0,1}[a-zA-Z| ]+@{1}" +
+            "[a-zA-Z| ]+\\.{1}[a-zA-Z| ]+\\>{0,1}";
+    static final String REGEXP_IPV6_ADDRESS_TYPE =
+        "[a-fA-F]{4}\\:{1}[a-fA-F0-9]{4}\\:{1}[a-fA-F0-9]{4}\\:{1}" +
+        "[a-fA-F0-9]{4}\\:{1}[a-fA-F0-9]{4}\\:{1}[a-fA-F0-9]{4}\\:{1}" +
+        "[a-fA-F0-9]{4}\\:{1}[a-fA-F0-9]{4}";
+    static final String REGEXP_IPV4_ADDRESS_TYPE = "[0-9]{1,3}\\.{1}[0-9]{1,3}\\.{1}" +
+            "[0-9]{1,3}\\.{1}[0-9]{1,3}";
+
+    /**
+     * The postfix strings of address.
+     */
+    static final String STRING_PHONE_NUMBER_ADDRESS_TYPE = "/TYPE=PLMN";
+    static final String STRING_IPV4_ADDRESS_TYPE = "/TYPE=IPV4";
+    static final String STRING_IPV6_ADDRESS_TYPE = "/TYPE=IPV6";
+
+    /**
+     * Error values.
+     */
+    static private final int PDU_COMPOSE_SUCCESS = 0;
+    static private final int PDU_COMPOSE_CONTENT_ERROR = 1;
+    static private final int PDU_COMPOSE_FIELD_NOT_SET = 2;
+    static private final int PDU_COMPOSE_FIELD_NOT_SUPPORTED = 3;
+
+    /**
+     * WAP values defined in WSP spec.
+     */
+    static private final int QUOTED_STRING_FLAG = 34;
+    static private final int END_STRING_FLAG = 0;
+    static private final int LENGTH_QUOTE = 31;
+    static private final int TEXT_MAX = 127;
+    static private final int SHORT_INTEGER_MAX = 127;
+    static private final int LONG_INTEGER_LENGTH_MAX = 8;
+
+    /**
+     * Block size when read data from InputStream.
+     */
+    static private final int PDU_COMPOSER_BLOCK_SIZE = 1024;
+
+    /**
+     * The output message.
+     */
+    @UnsupportedAppUsage
+    protected ByteArrayOutputStream mMessage = null;
+
+    /**
+     * The PDU.
+     */
+    @UnsupportedAppUsage
+    private GenericPdu mPdu = null;
+
+    /**
+     * Current visiting position of the mMessage.
+     */
+    @UnsupportedAppUsage
+    protected int mPosition = 0;
+
+    /**
+     * Message compose buffer stack.
+     */
+    @UnsupportedAppUsage
+    private BufferStack mStack = null;
+
+    /**
+     * Content resolver.
+     */
+    @UnsupportedAppUsage
+    private final ContentResolver mResolver;
+
+    /**
+     * Header of this pdu.
+     */
+    @UnsupportedAppUsage
+    private PduHeaders mPduHeader = null;
+
+    /**
+     * Map of all content type
+     */
+    @UnsupportedAppUsage
+    private static HashMap<String, Integer> mContentTypeMap = null;
+
+    static {
+        mContentTypeMap = new HashMap<String, Integer>();
+
+        int i;
+        for (i = 0; i < PduContentTypes.contentTypes.length; i++) {
+            mContentTypeMap.put(PduContentTypes.contentTypes[i], i);
+        }
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param context the context
+     * @param pdu the pdu to be composed
+     */
+    @UnsupportedAppUsage
+    public PduComposer(Context context, GenericPdu pdu) {
+        mPdu = pdu;
+        mResolver = context.getContentResolver();
+        mPduHeader = pdu.getPduHeaders();
+        mStack = new BufferStack();
+        mMessage = new ByteArrayOutputStream();
+        mPosition = 0;
+    }
+
+    /**
+     * Make the message. No need to check whether mandatory fields are set,
+     * because the constructors of outgoing pdus are taking care of this.
+     *
+     * @return OutputStream of maked message. Return null if
+     *         the PDU is invalid.
+     */
+    @UnsupportedAppUsage
+    public byte[] make() {
+        // Get Message-type.
+        int type = mPdu.getMessageType();
+
+        /* make the message */
+        switch (type) {
+            case PduHeaders.MESSAGE_TYPE_SEND_REQ:
+            case PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF:
+                if (makeSendRetrievePdu(type) != PDU_COMPOSE_SUCCESS) {
+                    return null;
+                }
+                break;
+            case PduHeaders.MESSAGE_TYPE_NOTIFYRESP_IND:
+                if (makeNotifyResp() != PDU_COMPOSE_SUCCESS) {
+                    return null;
+                }
+                break;
+            case PduHeaders.MESSAGE_TYPE_ACKNOWLEDGE_IND:
+                if (makeAckInd() != PDU_COMPOSE_SUCCESS) {
+                    return null;
+                }
+                break;
+            case PduHeaders.MESSAGE_TYPE_READ_REC_IND:
+                if (makeReadRecInd() != PDU_COMPOSE_SUCCESS) {
+                    return null;
+                }
+                break;
+            default:
+                return null;
+        }
+
+        return mMessage.toByteArray();
+    }
+
+    /**
+     *  Copy buf to mMessage.
+     */
+    @UnsupportedAppUsage
+    protected void arraycopy(byte[] buf, int pos, int length) {
+        mMessage.write(buf, pos, length);
+        mPosition = mPosition + length;
+    }
+
+    /**
+     * Append a byte to mMessage.
+     */
+    protected void append(int value) {
+        mMessage.write(value);
+        mPosition ++;
+    }
+
+    /**
+     * Append short integer value to mMessage.
+     * This implementation doesn't check the validity of parameter, since it
+     * assumes that the values are validated in the GenericPdu setter methods.
+     */
+    @UnsupportedAppUsage
+    protected void appendShortInteger(int value) {
+        /*
+         * From WAP-230-WSP-20010705-a:
+         * Short-integer = OCTET
+         * ; Integers in range 0-127 shall be encoded as a one octet value
+         * ; with the most significant bit set to one (1xxx xxxx) and with
+         * ; the value in the remaining least significant bits.
+         * In our implementation, only low 7 bits are stored and otherwise
+         * bits are ignored.
+         */
+        append((value | 0x80) & 0xff);
+    }
+
+    /**
+     * Append an octet number between 128 and 255 into mMessage.
+     * NOTE:
+     * A value between 0 and 127 should be appended by using appendShortInteger.
+     * This implementation doesn't check the validity of parameter, since it
+     * assumes that the values are validated in the GenericPdu setter methods.
+     */
+    @UnsupportedAppUsage
+    protected void appendOctet(int number) {
+        append(number);
+    }
+
+    /**
+     * Append a short length into mMessage.
+     * This implementation doesn't check the validity of parameter, since it
+     * assumes that the values are validated in the GenericPdu setter methods.
+     */
+    protected void appendShortLength(int value) {
+        /*
+         * From WAP-230-WSP-20010705-a:
+         * Short-length = <Any octet 0-30>
+         */
+        append(value);
+    }
+
+    /**
+     * Append long integer into mMessage. it's used for really long integers.
+     * This implementation doesn't check the validity of parameter, since it
+     * assumes that the values are validated in the GenericPdu setter methods.
+     */
+    @UnsupportedAppUsage
+    protected void appendLongInteger(long longInt) {
+        /*
+         * From WAP-230-WSP-20010705-a:
+         * Long-integer = Short-length Multi-octet-integer
+         * ; The Short-length indicates the length of the Multi-octet-integer
+         * Multi-octet-integer = 1*30 OCTET
+         * ; The content octets shall be an unsigned integer value with the
+         * ; most significant octet encoded first (big-endian representation).
+         * ; The minimum number of octets must be used to encode the value.
+         */
+        int size;
+        long temp = longInt;
+
+        // Count the length of the long integer.
+        for(size = 0; (temp != 0) && (size < LONG_INTEGER_LENGTH_MAX); size++) {
+            temp = (temp >>> 8);
+        }
+
+        // Set Length.
+        appendShortLength(size);
+
+        // Count and set the long integer.
+        int i;
+        int shift = (size -1) * 8;
+
+        for (i = 0; i < size; i++) {
+            append((int)((longInt >>> shift) & 0xff));
+            shift = shift - 8;
+        }
+    }
+
+    /**
+     * Append text string into mMessage.
+     * This implementation doesn't check the validity of parameter, since it
+     * assumes that the values are validated in the GenericPdu setter methods.
+     */
+    @UnsupportedAppUsage
+    protected void appendTextString(byte[] text) {
+        /*
+         * From WAP-230-WSP-20010705-a:
+         * Text-string = [Quote] *TEXT End-of-string
+         * ; If the first character in the TEXT is in the range of 128-255,
+         * ; a Quote character must precede it. Otherwise the Quote character
+         * ;must be omitted. The Quote is not part of the contents.
+         */
+        if (((text[0])&0xff) > TEXT_MAX) { // No need to check for <= 255
+            append(TEXT_MAX);
+        }
+
+        arraycopy(text, 0, text.length);
+        append(0);
+    }
+
+    /**
+     * Append text string into mMessage.
+     * This implementation doesn't check the validity of parameter, since it
+     * assumes that the values are validated in the GenericPdu setter methods.
+     */
+    @UnsupportedAppUsage
+    protected void appendTextString(String str) {
+        /*
+         * From WAP-230-WSP-20010705-a:
+         * Text-string = [Quote] *TEXT End-of-string
+         * ; If the first character in the TEXT is in the range of 128-255,
+         * ; a Quote character must precede it. Otherwise the Quote character
+         * ;must be omitted. The Quote is not part of the contents.
+         */
+        appendTextString(str.getBytes());
+    }
+
+    /**
+     * Append encoded string value to mMessage.
+     * This implementation doesn't check the validity of parameter, since it
+     * assumes that the values are validated in the GenericPdu setter methods.
+     */
+    @UnsupportedAppUsage
+    protected void appendEncodedString(EncodedStringValue enStr) {
+        /*
+         * From OMA-TS-MMS-ENC-V1_3-20050927-C:
+         * Encoded-string-value = Text-string | Value-length Char-set Text-string
+         */
+        assert(enStr != null);
+
+        int charset = enStr.getCharacterSet();
+        byte[] textString = enStr.getTextString();
+        if (null == textString) {
+            return;
+        }
+
+        /*
+         * In the implementation of EncodedStringValue, the charset field will
+         * never be 0. It will always be composed as
+         * Encoded-string-value = Value-length Char-set Text-string
+         */
+        mStack.newbuf();
+        PositionMarker start = mStack.mark();
+
+        appendShortInteger(charset);
+        appendTextString(textString);
+
+        int len = start.getLength();
+        mStack.pop();
+        appendValueLength(len);
+        mStack.copy();
+    }
+
+    /**
+     * Append uintvar integer into mMessage.
+     * This implementation doesn't check the validity of parameter, since it
+     * assumes that the values are validated in the GenericPdu setter methods.
+     */
+    @UnsupportedAppUsage
+    protected void appendUintvarInteger(long value) {
+        /*
+         * From WAP-230-WSP-20010705-a:
+         * To encode a large unsigned integer, split it into 7-bit fragments
+         * and place them in the payloads of multiple octets. The most significant
+         * bits are placed in the first octets with the least significant bits
+         * ending up in the last octet. All octets MUST set the Continue bit to 1
+         * except the last octet, which MUST set the Continue bit to 0.
+         */
+        int i;
+        long max = SHORT_INTEGER_MAX;
+
+        for (i = 0; i < 5; i++) {
+            if (value < max) {
+                break;
+            }
+
+            max = (max << 7) | 0x7fl;
+        }
+
+        while(i > 0) {
+            long temp = value >>> (i * 7);
+            temp = temp & 0x7f;
+
+            append((int)((temp | 0x80) & 0xff));
+
+            i--;
+        }
+
+        append((int)(value & 0x7f));
+    }
+
+    /**
+     * Append date value into mMessage.
+     * This implementation doesn't check the validity of parameter, since it
+     * assumes that the values are validated in the GenericPdu setter methods.
+     */
+    protected void appendDateValue(long date) {
+        /*
+         * From OMA-TS-MMS-ENC-V1_3-20050927-C:
+         * Date-value = Long-integer
+         */
+        appendLongInteger(date);
+    }
+
+    /**
+     * Append value length to mMessage.
+     * This implementation doesn't check the validity of parameter, since it
+     * assumes that the values are validated in the GenericPdu setter methods.
+     */
+    @UnsupportedAppUsage
+    protected void appendValueLength(long value) {
+        /*
+         * From WAP-230-WSP-20010705-a:
+         * Value-length = Short-length | (Length-quote Length)
+         * ; Value length is used to indicate the length of the value to follow
+         * Short-length = <Any octet 0-30>
+         * Length-quote = <Octet 31>
+         * Length = Uintvar-integer
+         */
+        if (value < LENGTH_QUOTE) {
+            appendShortLength((int) value);
+            return;
+        }
+
+        append(LENGTH_QUOTE);
+        appendUintvarInteger(value);
+    }
+
+    /**
+     * Append quoted string to mMessage.
+     * This implementation doesn't check the validity of parameter, since it
+     * assumes that the values are validated in the GenericPdu setter methods.
+     */
+    @UnsupportedAppUsage
+    protected void appendQuotedString(byte[] text) {
+        /*
+         * From WAP-230-WSP-20010705-a:
+         * Quoted-string = <Octet 34> *TEXT End-of-string
+         * ;The TEXT encodes an RFC2616 Quoted-string with the enclosing
+         * ;quotation-marks <"> removed.
+         */
+        append(QUOTED_STRING_FLAG);
+        arraycopy(text, 0, text.length);
+        append(END_STRING_FLAG);
+    }
+
+    /**
+     * Append quoted string to mMessage.
+     * This implementation doesn't check the validity of parameter, since it
+     * assumes that the values are validated in the GenericPdu setter methods.
+     */
+    @UnsupportedAppUsage
+    protected void appendQuotedString(String str) {
+        /*
+         * From WAP-230-WSP-20010705-a:
+         * Quoted-string = <Octet 34> *TEXT End-of-string
+         * ;The TEXT encodes an RFC2616 Quoted-string with the enclosing
+         * ;quotation-marks <"> removed.
+         */
+        appendQuotedString(str.getBytes());
+    }
+
+    private EncodedStringValue appendAddressType(EncodedStringValue address) {
+        EncodedStringValue temp = null;
+
+        try {
+            int addressType = checkAddressType(address.getString());
+            temp = EncodedStringValue.copy(address);
+            if (PDU_PHONE_NUMBER_ADDRESS_TYPE == addressType) {
+                // Phone number.
+                temp.appendTextString(STRING_PHONE_NUMBER_ADDRESS_TYPE.getBytes());
+            } else if (PDU_IPV4_ADDRESS_TYPE == addressType) {
+                // Ipv4 address.
+                temp.appendTextString(STRING_IPV4_ADDRESS_TYPE.getBytes());
+            } else if (PDU_IPV6_ADDRESS_TYPE == addressType) {
+                // Ipv6 address.
+                temp.appendTextString(STRING_IPV6_ADDRESS_TYPE.getBytes());
+            }
+        } catch (NullPointerException e) {
+            return null;
+        }
+
+        return temp;
+    }
+
+    /**
+     * Append header to mMessage.
+     */
+    @UnsupportedAppUsage
+    private int appendHeader(int field) {
+        switch (field) {
+            case PduHeaders.MMS_VERSION:
+                appendOctet(field);
+
+                int version = mPduHeader.getOctet(field);
+                if (0 == version) {
+                    appendShortInteger(PduHeaders.CURRENT_MMS_VERSION);
+                } else {
+                    appendShortInteger(version);
+                }
+
+                break;
+
+            case PduHeaders.MESSAGE_ID:
+            case PduHeaders.TRANSACTION_ID:
+                byte[] textString = mPduHeader.getTextString(field);
+                if (null == textString) {
+                    return PDU_COMPOSE_FIELD_NOT_SET;
+                }
+
+                appendOctet(field);
+                appendTextString(textString);
+                break;
+
+            case PduHeaders.TO:
+            case PduHeaders.BCC:
+            case PduHeaders.CC:
+                EncodedStringValue[] addr = mPduHeader.getEncodedStringValues(field);
+
+                if (null == addr) {
+                    return PDU_COMPOSE_FIELD_NOT_SET;
+                }
+
+                EncodedStringValue temp;
+                for (int i = 0; i < addr.length; i++) {
+                    temp = appendAddressType(addr[i]);
+                    if (temp == null) {
+                        return PDU_COMPOSE_CONTENT_ERROR;
+                    }
+
+                    appendOctet(field);
+                    appendEncodedString(temp);
+                }
+                break;
+
+            case PduHeaders.FROM:
+                // Value-length (Address-present-token Encoded-string-value | Insert-address-token)
+                appendOctet(field);
+
+                EncodedStringValue from = mPduHeader.getEncodedStringValue(field);
+                if ((from == null)
+                        || TextUtils.isEmpty(from.getString())
+                        || new String(from.getTextString()).equals(
+                                PduHeaders.FROM_INSERT_ADDRESS_TOKEN_STR)) {
+                    // Length of from = 1
+                    append(1);
+                    // Insert-address-token = <Octet 129>
+                    append(PduHeaders.FROM_INSERT_ADDRESS_TOKEN);
+                } else {
+                    mStack.newbuf();
+                    PositionMarker fstart = mStack.mark();
+
+                    // Address-present-token = <Octet 128>
+                    append(PduHeaders.FROM_ADDRESS_PRESENT_TOKEN);
+
+                    temp = appendAddressType(from);
+                    if (temp == null) {
+                        return PDU_COMPOSE_CONTENT_ERROR;
+                    }
+
+                    appendEncodedString(temp);
+
+                    int flen = fstart.getLength();
+                    mStack.pop();
+                    appendValueLength(flen);
+                    mStack.copy();
+                }
+                break;
+
+            case PduHeaders.READ_STATUS:
+            case PduHeaders.STATUS:
+            case PduHeaders.REPORT_ALLOWED:
+            case PduHeaders.PRIORITY:
+            case PduHeaders.DELIVERY_REPORT:
+            case PduHeaders.READ_REPORT:
+            case PduHeaders.RETRIEVE_STATUS:
+                int octet = mPduHeader.getOctet(field);
+                if (0 == octet) {
+                    return PDU_COMPOSE_FIELD_NOT_SET;
+                }
+
+                appendOctet(field);
+                appendOctet(octet);
+                break;
+
+            case PduHeaders.DATE:
+                long date = mPduHeader.getLongInteger(field);
+                if (-1 == date) {
+                    return PDU_COMPOSE_FIELD_NOT_SET;
+                }
+
+                appendOctet(field);
+                appendDateValue(date);
+                break;
+
+            case PduHeaders.SUBJECT:
+            case PduHeaders.RETRIEVE_TEXT:
+                EncodedStringValue enString =
+                    mPduHeader.getEncodedStringValue(field);
+                if (null == enString) {
+                    return PDU_COMPOSE_FIELD_NOT_SET;
+                }
+
+                appendOctet(field);
+                appendEncodedString(enString);
+                break;
+
+            case PduHeaders.MESSAGE_CLASS:
+                byte[] messageClass = mPduHeader.getTextString(field);
+                if (null == messageClass) {
+                    return PDU_COMPOSE_FIELD_NOT_SET;
+                }
+
+                appendOctet(field);
+                if (Arrays.equals(messageClass,
+                        PduHeaders.MESSAGE_CLASS_ADVERTISEMENT_STR.getBytes())) {
+                    appendOctet(PduHeaders.MESSAGE_CLASS_ADVERTISEMENT);
+                } else if (Arrays.equals(messageClass,
+                        PduHeaders.MESSAGE_CLASS_AUTO_STR.getBytes())) {
+                    appendOctet(PduHeaders.MESSAGE_CLASS_AUTO);
+                } else if (Arrays.equals(messageClass,
+                        PduHeaders.MESSAGE_CLASS_PERSONAL_STR.getBytes())) {
+                    appendOctet(PduHeaders.MESSAGE_CLASS_PERSONAL);
+                } else if (Arrays.equals(messageClass,
+                        PduHeaders.MESSAGE_CLASS_INFORMATIONAL_STR.getBytes())) {
+                    appendOctet(PduHeaders.MESSAGE_CLASS_INFORMATIONAL);
+                } else {
+                    appendTextString(messageClass);
+                }
+                break;
+
+            case PduHeaders.EXPIRY:
+                long expiry = mPduHeader.getLongInteger(field);
+                if (-1 == expiry) {
+                    return PDU_COMPOSE_FIELD_NOT_SET;
+                }
+
+                appendOctet(field);
+
+                mStack.newbuf();
+                PositionMarker expiryStart = mStack.mark();
+
+                append(PduHeaders.VALUE_RELATIVE_TOKEN);
+                appendLongInteger(expiry);
+
+                int expiryLength = expiryStart.getLength();
+                mStack.pop();
+                appendValueLength(expiryLength);
+                mStack.copy();
+                break;
+
+            default:
+                return PDU_COMPOSE_FIELD_NOT_SUPPORTED;
+        }
+
+        return PDU_COMPOSE_SUCCESS;
+    }
+
+    /**
+     * Make ReadRec.Ind.
+     */
+    private int makeReadRecInd() {
+        if (mMessage == null) {
+            mMessage = new ByteArrayOutputStream();
+            mPosition = 0;
+        }
+
+        // X-Mms-Message-Type
+        appendOctet(PduHeaders.MESSAGE_TYPE);
+        appendOctet(PduHeaders.MESSAGE_TYPE_READ_REC_IND);
+
+        // X-Mms-MMS-Version
+        if (appendHeader(PduHeaders.MMS_VERSION) != PDU_COMPOSE_SUCCESS) {
+            return PDU_COMPOSE_CONTENT_ERROR;
+        }
+
+        // Message-ID
+        if (appendHeader(PduHeaders.MESSAGE_ID) != PDU_COMPOSE_SUCCESS) {
+            return PDU_COMPOSE_CONTENT_ERROR;
+        }
+
+        // To
+        if (appendHeader(PduHeaders.TO) != PDU_COMPOSE_SUCCESS) {
+            return PDU_COMPOSE_CONTENT_ERROR;
+        }
+
+        // From
+        if (appendHeader(PduHeaders.FROM) != PDU_COMPOSE_SUCCESS) {
+            return PDU_COMPOSE_CONTENT_ERROR;
+        }
+
+        // Date Optional
+        appendHeader(PduHeaders.DATE);
+
+        // X-Mms-Read-Status
+        if (appendHeader(PduHeaders.READ_STATUS) != PDU_COMPOSE_SUCCESS) {
+            return PDU_COMPOSE_CONTENT_ERROR;
+        }
+
+        // X-Mms-Applic-ID Optional(not support)
+        // X-Mms-Reply-Applic-ID Optional(not support)
+        // X-Mms-Aux-Applic-Info Optional(not support)
+
+        return PDU_COMPOSE_SUCCESS;
+    }
+
+    /**
+     * Make NotifyResp.Ind.
+     */
+    private int makeNotifyResp() {
+        if (mMessage == null) {
+            mMessage = new ByteArrayOutputStream();
+            mPosition = 0;
+        }
+
+        //    X-Mms-Message-Type
+        appendOctet(PduHeaders.MESSAGE_TYPE);
+        appendOctet(PduHeaders.MESSAGE_TYPE_NOTIFYRESP_IND);
+
+        // X-Mms-Transaction-ID
+        if (appendHeader(PduHeaders.TRANSACTION_ID) != PDU_COMPOSE_SUCCESS) {
+            return PDU_COMPOSE_CONTENT_ERROR;
+        }
+
+        // X-Mms-MMS-Version
+        if (appendHeader(PduHeaders.MMS_VERSION) != PDU_COMPOSE_SUCCESS) {
+            return PDU_COMPOSE_CONTENT_ERROR;
+        }
+
+        //  X-Mms-Status
+        if (appendHeader(PduHeaders.STATUS) != PDU_COMPOSE_SUCCESS) {
+            return PDU_COMPOSE_CONTENT_ERROR;
+        }
+
+        // X-Mms-Report-Allowed Optional (not support)
+        return PDU_COMPOSE_SUCCESS;
+    }
+
+    /**
+     * Make Acknowledge.Ind.
+     */
+    private int makeAckInd() {
+        if (mMessage == null) {
+            mMessage = new ByteArrayOutputStream();
+            mPosition = 0;
+        }
+
+        //    X-Mms-Message-Type
+        appendOctet(PduHeaders.MESSAGE_TYPE);
+        appendOctet(PduHeaders.MESSAGE_TYPE_ACKNOWLEDGE_IND);
+
+        // X-Mms-Transaction-ID
+        if (appendHeader(PduHeaders.TRANSACTION_ID) != PDU_COMPOSE_SUCCESS) {
+            return PDU_COMPOSE_CONTENT_ERROR;
+        }
+
+        //     X-Mms-MMS-Version
+        if (appendHeader(PduHeaders.MMS_VERSION) != PDU_COMPOSE_SUCCESS) {
+            return PDU_COMPOSE_CONTENT_ERROR;
+        }
+
+        // X-Mms-Report-Allowed Optional
+        appendHeader(PduHeaders.REPORT_ALLOWED);
+
+        return PDU_COMPOSE_SUCCESS;
+    }
+
+    /**
+     * Make Send.req.
+     */
+    private int makeSendRetrievePdu(int type) {
+        if (mMessage == null) {
+            mMessage = new ByteArrayOutputStream();
+            mPosition = 0;
+        }
+
+        // X-Mms-Message-Type
+        appendOctet(PduHeaders.MESSAGE_TYPE);
+        appendOctet(type);
+
+        // X-Mms-Transaction-ID
+        appendOctet(PduHeaders.TRANSACTION_ID);
+
+        byte[] trid = mPduHeader.getTextString(PduHeaders.TRANSACTION_ID);
+        if (trid == null) {
+            // Transaction-ID should be set(by Transaction) before make().
+            throw new IllegalArgumentException("Transaction-ID is null.");
+        }
+        appendTextString(trid);
+
+        //  X-Mms-MMS-Version
+        if (appendHeader(PduHeaders.MMS_VERSION) != PDU_COMPOSE_SUCCESS) {
+            return PDU_COMPOSE_CONTENT_ERROR;
+        }
+
+        // Date Date-value Optional.
+        appendHeader(PduHeaders.DATE);
+
+        // From
+        if (appendHeader(PduHeaders.FROM) != PDU_COMPOSE_SUCCESS) {
+            return PDU_COMPOSE_CONTENT_ERROR;
+        }
+
+        boolean recipient = false;
+
+        // To
+        if (appendHeader(PduHeaders.TO) != PDU_COMPOSE_CONTENT_ERROR) {
+            recipient = true;
+        }
+
+        // Cc
+        if (appendHeader(PduHeaders.CC) != PDU_COMPOSE_CONTENT_ERROR) {
+            recipient = true;
+        }
+
+        // Bcc
+        if (appendHeader(PduHeaders.BCC) != PDU_COMPOSE_CONTENT_ERROR) {
+            recipient = true;
+        }
+
+        // Need at least one of "cc", "bcc" and "to".
+        if (false == recipient) {
+            return PDU_COMPOSE_CONTENT_ERROR;
+        }
+
+        // Subject Optional
+        appendHeader(PduHeaders.SUBJECT);
+
+        // X-Mms-Message-Class Optional
+        // Message-class-value = Class-identifier | Token-text
+        appendHeader(PduHeaders.MESSAGE_CLASS);
+
+        // X-Mms-Expiry Optional
+        appendHeader(PduHeaders.EXPIRY);
+
+        // X-Mms-Priority Optional
+        appendHeader(PduHeaders.PRIORITY);
+
+        // X-Mms-Delivery-Report Optional
+        appendHeader(PduHeaders.DELIVERY_REPORT);
+
+        // X-Mms-Read-Report Optional
+        appendHeader(PduHeaders.READ_REPORT);
+
+        if (type == PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF) {
+            // X-Mms-Retrieve-Status Optional
+            appendHeader(PduHeaders.RETRIEVE_STATUS);
+            // X-Mms-Retrieve-Text Optional
+            appendHeader(PduHeaders.RETRIEVE_TEXT);
+        }
+
+
+        //    Content-Type
+        appendOctet(PduHeaders.CONTENT_TYPE);
+
+        //  Message body
+        return makeMessageBody(type);
+    }
+
+    /**
+     * Make message body.
+     */
+    private int makeMessageBody(int type) {
+        // 1. add body informations
+        mStack.newbuf();  // Switching buffer because we need to
+
+        PositionMarker ctStart = mStack.mark();
+
+        // This contentTypeIdentifier should be used for type of attachment...
+        String contentType = new String(mPduHeader.getTextString(PduHeaders.CONTENT_TYPE));
+        Integer contentTypeIdentifier = mContentTypeMap.get(contentType);
+        if (contentTypeIdentifier == null) {
+            // content type is mandatory
+            return PDU_COMPOSE_CONTENT_ERROR;
+        }
+
+        appendShortInteger(contentTypeIdentifier.intValue());
+
+        // content-type parameter: start
+        PduBody body;
+        if (type == PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF) {
+            body = ((RetrieveConf) mPdu).getBody();
+        } else {
+            body = ((SendReq) mPdu).getBody();
+        }
+        if (null == body || body.getPartsNum() == 0) {
+            // empty message
+            appendUintvarInteger(0);
+            mStack.pop();
+            mStack.copy();
+            return PDU_COMPOSE_SUCCESS;
+        }
+
+        PduPart part;
+        try {
+            part = body.getPart(0);
+
+            byte[] start = part.getContentId();
+            if (start != null) {
+                appendOctet(PduPart.P_DEP_START);
+                if (('<' == start[0]) && ('>' == start[start.length - 1])) {
+                    appendTextString(start);
+                } else {
+                    appendTextString("<" + new String(start) + ">");
+                }
+            }
+
+            // content-type parameter: type
+            appendOctet(PduPart.P_CT_MR_TYPE);
+            appendTextString(part.getContentType());
+        }
+        catch (ArrayIndexOutOfBoundsException e){
+            e.printStackTrace();
+        }
+
+        int ctLength = ctStart.getLength();
+        mStack.pop();
+        appendValueLength(ctLength);
+        mStack.copy();
+
+        // 3. add content
+        int partNum = body.getPartsNum();
+        appendUintvarInteger(partNum);
+        for (int i = 0; i < partNum; i++) {
+            part = body.getPart(i);
+            mStack.newbuf();  // Leaving space for header lengh and data length
+            PositionMarker attachment = mStack.mark();
+
+            mStack.newbuf();  // Leaving space for Content-Type length
+            PositionMarker contentTypeBegin = mStack.mark();
+
+            byte[] partContentType = part.getContentType();
+
+            if (partContentType == null) {
+                // content type is mandatory
+                return PDU_COMPOSE_CONTENT_ERROR;
+            }
+
+            // content-type value
+            Integer partContentTypeIdentifier =
+                mContentTypeMap.get(new String(partContentType));
+            if (partContentTypeIdentifier == null) {
+                appendTextString(partContentType);
+            } else {
+                appendShortInteger(partContentTypeIdentifier.intValue());
+            }
+
+            /* Content-type parameter : name.
+             * The value of name, filename, content-location is the same.
+             * Just one of them is enough for this PDU.
+             */
+            byte[] name = part.getName();
+
+            if (null == name) {
+                name = part.getFilename();
+
+                if (null == name) {
+                    name = part.getContentLocation();
+
+                    if (null == name) {
+                        /* at lease one of name, filename, Content-location
+                         * should be available.
+                         */
+                        return PDU_COMPOSE_CONTENT_ERROR;
+                    }
+                }
+            }
+            appendOctet(PduPart.P_DEP_NAME);
+            appendTextString(name);
+
+            // content-type parameter : charset
+            int charset = part.getCharset();
+            if (charset != 0) {
+                appendOctet(PduPart.P_CHARSET);
+                appendShortInteger(charset);
+            }
+
+            int contentTypeLength = contentTypeBegin.getLength();
+            mStack.pop();
+            appendValueLength(contentTypeLength);
+            mStack.copy();
+
+            // content id
+            byte[] contentId = part.getContentId();
+
+            if (null != contentId) {
+                appendOctet(PduPart.P_CONTENT_ID);
+                if (('<' == contentId[0]) && ('>' == contentId[contentId.length - 1])) {
+                    appendQuotedString(contentId);
+                } else {
+                    appendQuotedString("<" + new String(contentId) + ">");
+                }
+            }
+
+            // content-location
+            byte[] contentLocation = part.getContentLocation();
+            if (null != contentLocation) {
+            	appendOctet(PduPart.P_CONTENT_LOCATION);
+            	appendTextString(contentLocation);
+            }
+
+            // content
+            int headerLength = attachment.getLength();
+
+            int dataLength = 0; // Just for safety...
+            byte[] partData = part.getData();
+
+            if (partData != null) {
+                arraycopy(partData, 0, partData.length);
+                dataLength = partData.length;
+            } else {
+                InputStream cr = null;
+                try {
+                    byte[] buffer = new byte[PDU_COMPOSER_BLOCK_SIZE];
+                    cr = mResolver.openInputStream(part.getDataUri());
+                    int len = 0;
+                    while ((len = cr.read(buffer)) != -1) {
+                        mMessage.write(buffer, 0, len);
+                        mPosition += len;
+                        dataLength += len;
+                    }
+                } catch (FileNotFoundException e) {
+                    return PDU_COMPOSE_CONTENT_ERROR;
+                } catch (IOException e) {
+                    return PDU_COMPOSE_CONTENT_ERROR;
+                } catch (RuntimeException e) {
+                    return PDU_COMPOSE_CONTENT_ERROR;
+                } finally {
+                    if (cr != null) {
+                        try {
+                            cr.close();
+                        } catch (IOException e) {
+                        }
+                    }
+                }
+            }
+
+            if (dataLength != (attachment.getLength() - headerLength)) {
+                throw new RuntimeException("BUG: Length sanity check failed");
+            }
+
+            mStack.pop();
+            appendUintvarInteger(headerLength);
+            appendUintvarInteger(dataLength);
+            mStack.copy();
+        }
+
+        return PDU_COMPOSE_SUCCESS;
+    }
+
+    /**
+     *  Record current message informations.
+     */
+    static private class LengthRecordNode {
+        ByteArrayOutputStream currentMessage = null;
+        public int currentPosition = 0;
+
+        public LengthRecordNode next = null;
+    }
+
+    /**
+     * Mark current message position and stact size.
+     */
+    private class PositionMarker {
+        private int c_pos;   // Current position
+        private int currentStackSize;  // Current stack size
+
+        @UnsupportedAppUsage
+        int getLength() {
+            // If these assert fails, likely that you are finding the
+            // size of buffer that is deep in BufferStack you can only
+            // find the length of the buffer that is on top
+            if (currentStackSize != mStack.stackSize) {
+                throw new RuntimeException("BUG: Invalid call to getLength()");
+            }
+
+            return mPosition - c_pos;
+        }
+    }
+
+    /**
+     * This implementation can be OPTIMIZED to use only
+     * 2 buffers. This optimization involves changing BufferStack
+     * only... Its usage (interface) will not change.
+     */
+    private class BufferStack {
+        private LengthRecordNode stack = null;
+        private LengthRecordNode toCopy = null;
+
+        int stackSize = 0;
+
+        /**
+         *  Create a new message buffer and push it into the stack.
+         */
+        @UnsupportedAppUsage
+        void newbuf() {
+            // You can't create a new buff when toCopy != null
+            // That is after calling pop() and before calling copy()
+            // If you do, it is a bug
+            if (toCopy != null) {
+                throw new RuntimeException("BUG: Invalid newbuf() before copy()");
+            }
+
+            LengthRecordNode temp = new LengthRecordNode();
+
+            temp.currentMessage = mMessage;
+            temp.currentPosition = mPosition;
+
+            temp.next = stack;
+            stack = temp;
+
+            stackSize = stackSize + 1;
+
+            mMessage = new ByteArrayOutputStream();
+            mPosition = 0;
+        }
+
+        /**
+         *  Pop the message before and record current message in the stack.
+         */
+        @UnsupportedAppUsage
+        void pop() {
+            ByteArrayOutputStream currentMessage = mMessage;
+            int currentPosition = mPosition;
+
+            mMessage = stack.currentMessage;
+            mPosition = stack.currentPosition;
+
+            toCopy = stack;
+            // Re using the top element of the stack to avoid memory allocation
+
+            stack = stack.next;
+            stackSize = stackSize - 1;
+
+            toCopy.currentMessage = currentMessage;
+            toCopy.currentPosition = currentPosition;
+        }
+
+        /**
+         *  Append current message to the message before.
+         */
+        @UnsupportedAppUsage
+        void copy() {
+            arraycopy(toCopy.currentMessage.toByteArray(), 0,
+                    toCopy.currentPosition);
+
+            toCopy = null;
+        }
+
+        /**
+         *  Mark current message position
+         */
+        @UnsupportedAppUsage
+        PositionMarker mark() {
+            PositionMarker m = new PositionMarker();
+
+            m.c_pos = mPosition;
+            m.currentStackSize = stackSize;
+
+            return m;
+        }
+    }
+
+    /**
+     * Check address type.
+     *
+     * @param address address string without the postfix stinng type,
+     *        such as "/TYPE=PLMN", "/TYPE=IPv6" and "/TYPE=IPv4"
+     * @return PDU_PHONE_NUMBER_ADDRESS_TYPE if it is phone number,
+     *         PDU_EMAIL_ADDRESS_TYPE if it is email address,
+     *         PDU_IPV4_ADDRESS_TYPE if it is ipv4 address,
+     *         PDU_IPV6_ADDRESS_TYPE if it is ipv6 address,
+     *         PDU_UNKNOWN_ADDRESS_TYPE if it is unknown.
+     */
+    protected static int checkAddressType(String address) {
+        /**
+         * From OMA-TS-MMS-ENC-V1_3-20050927-C.pdf, section 8.
+         * address = ( e-mail / device-address / alphanum-shortcode / num-shortcode)
+         * e-mail = mailbox; to the definition of mailbox as described in
+         * section 3.4 of [RFC2822], but excluding the
+         * obsolete definitions as indicated by the "obs-" prefix.
+         * device-address = ( global-phone-number "/TYPE=PLMN" )
+         * / ( ipv4 "/TYPE=IPv4" ) / ( ipv6 "/TYPE=IPv6" )
+         * / ( escaped-value "/TYPE=" address-type )
+         *
+         * global-phone-number = ["+"] 1*( DIGIT / written-sep )
+         * written-sep =("-"/".")
+         *
+         * ipv4 = 1*3DIGIT 3( "." 1*3DIGIT ) ; IPv4 address value
+         *
+         * ipv6 = 4HEXDIG 7( ":" 4HEXDIG ) ; IPv6 address per RFC 2373
+         */
+
+        if (null == address) {
+            return PDU_UNKNOWN_ADDRESS_TYPE;
+        }
+
+        if (address.matches(REGEXP_IPV4_ADDRESS_TYPE)) {
+            // Ipv4 address.
+            return PDU_IPV4_ADDRESS_TYPE;
+        }else if (address.matches(REGEXP_PHONE_NUMBER_ADDRESS_TYPE)) {
+            // Phone number.
+            return PDU_PHONE_NUMBER_ADDRESS_TYPE;
+        } else if (address.matches(REGEXP_EMAIL_ADDRESS_TYPE)) {
+            // Email address.
+            return PDU_EMAIL_ADDRESS_TYPE;
+        } else if (address.matches(REGEXP_IPV6_ADDRESS_TYPE)) {
+            // Ipv6 address.
+            return PDU_IPV6_ADDRESS_TYPE;
+        } else {
+            // Unknown address.
+            return PDU_UNKNOWN_ADDRESS_TYPE;
+        }
+    }
+}
diff --git a/telephony/java/com/google/android/mms/pdu/PduContentTypes.java b/telephony/java/com/google/android/mms/pdu/PduContentTypes.java
new file mode 100644
index 0000000..8551b2f
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/PduContentTypes.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+public class PduContentTypes {
+    /**
+     * All content types. From:
+     * http://www.openmobilealliance.org/tech/omna/omna-wsp-content-type.htm
+     */
+    @UnsupportedAppUsage
+    static final String[] contentTypes = {
+        "*/*",                                        /* 0x00 */
+        "text/*",                                     /* 0x01 */
+        "text/html",                                  /* 0x02 */
+        "text/plain",                                 /* 0x03 */
+        "text/x-hdml",                                /* 0x04 */
+        "text/x-ttml",                                /* 0x05 */
+        "text/x-vCalendar",                           /* 0x06 */
+        "text/x-vCard",                               /* 0x07 */
+        "text/vnd.wap.wml",                           /* 0x08 */
+        "text/vnd.wap.wmlscript",                     /* 0x09 */
+        "text/vnd.wap.wta-event",                     /* 0x0A */
+        "multipart/*",                                /* 0x0B */
+        "multipart/mixed",                            /* 0x0C */
+        "multipart/form-data",                        /* 0x0D */
+        "multipart/byterantes",                       /* 0x0E */
+        "multipart/alternative",                      /* 0x0F */
+        "application/*",                              /* 0x10 */
+        "application/java-vm",                        /* 0x11 */
+        "application/x-www-form-urlencoded",          /* 0x12 */
+        "application/x-hdmlc",                        /* 0x13 */
+        "application/vnd.wap.wmlc",                   /* 0x14 */
+        "application/vnd.wap.wmlscriptc",             /* 0x15 */
+        "application/vnd.wap.wta-eventc",             /* 0x16 */
+        "application/vnd.wap.uaprof",                 /* 0x17 */
+        "application/vnd.wap.wtls-ca-certificate",    /* 0x18 */
+        "application/vnd.wap.wtls-user-certificate",  /* 0x19 */
+        "application/x-x509-ca-cert",                 /* 0x1A */
+        "application/x-x509-user-cert",               /* 0x1B */
+        "image/*",                                    /* 0x1C */
+        "image/gif",                                  /* 0x1D */
+        "image/jpeg",                                 /* 0x1E */
+        "image/tiff",                                 /* 0x1F */
+        "image/png",                                  /* 0x20 */
+        "image/vnd.wap.wbmp",                         /* 0x21 */
+        "application/vnd.wap.multipart.*",            /* 0x22 */
+        "application/vnd.wap.multipart.mixed",        /* 0x23 */
+        "application/vnd.wap.multipart.form-data",    /* 0x24 */
+        "application/vnd.wap.multipart.byteranges",   /* 0x25 */
+        "application/vnd.wap.multipart.alternative",  /* 0x26 */
+        "application/xml",                            /* 0x27 */
+        "text/xml",                                   /* 0x28 */
+        "application/vnd.wap.wbxml",                  /* 0x29 */
+        "application/x-x968-cross-cert",              /* 0x2A */
+        "application/x-x968-ca-cert",                 /* 0x2B */
+        "application/x-x968-user-cert",               /* 0x2C */
+        "text/vnd.wap.si",                            /* 0x2D */
+        "application/vnd.wap.sic",                    /* 0x2E */
+        "text/vnd.wap.sl",                            /* 0x2F */
+        "application/vnd.wap.slc",                    /* 0x30 */
+        "text/vnd.wap.co",                            /* 0x31 */
+        "application/vnd.wap.coc",                    /* 0x32 */
+        "application/vnd.wap.multipart.related",      /* 0x33 */
+        "application/vnd.wap.sia",                    /* 0x34 */
+        "text/vnd.wap.connectivity-xml",              /* 0x35 */
+        "application/vnd.wap.connectivity-wbxml",     /* 0x36 */
+        "application/pkcs7-mime",                     /* 0x37 */
+        "application/vnd.wap.hashed-certificate",     /* 0x38 */
+        "application/vnd.wap.signed-certificate",     /* 0x39 */
+        "application/vnd.wap.cert-response",          /* 0x3A */
+        "application/xhtml+xml",                      /* 0x3B */
+        "application/wml+xml",                        /* 0x3C */
+        "text/css",                                   /* 0x3D */
+        "application/vnd.wap.mms-message",            /* 0x3E */
+        "application/vnd.wap.rollover-certificate",   /* 0x3F */
+        "application/vnd.wap.locc+wbxml",             /* 0x40 */
+        "application/vnd.wap.loc+xml",                /* 0x41 */
+        "application/vnd.syncml.dm+wbxml",            /* 0x42 */
+        "application/vnd.syncml.dm+xml",              /* 0x43 */
+        "application/vnd.syncml.notification",        /* 0x44 */
+        "application/vnd.wap.xhtml+xml",              /* 0x45 */
+        "application/vnd.wv.csp.cir",                 /* 0x46 */
+        "application/vnd.oma.dd+xml",                 /* 0x47 */
+        "application/vnd.oma.drm.message",            /* 0x48 */
+        "application/vnd.oma.drm.content",            /* 0x49 */
+        "application/vnd.oma.drm.rights+xml",         /* 0x4A */
+        "application/vnd.oma.drm.rights+wbxml",       /* 0x4B */
+        "application/vnd.wv.csp+xml",                 /* 0x4C */
+        "application/vnd.wv.csp+wbxml",               /* 0x4D */
+        "application/vnd.syncml.ds.notification",     /* 0x4E */
+        "audio/*",                                    /* 0x4F */
+        "video/*",                                    /* 0x50 */
+        "application/vnd.oma.dd2+xml",                /* 0x51 */
+        "application/mikey"                           /* 0x52 */
+    };
+}
diff --git a/telephony/java/com/google/android/mms/pdu/PduHeaders.java b/telephony/java/com/google/android/mms/pdu/PduHeaders.java
new file mode 100644
index 0000000..b524464
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/PduHeaders.java
@@ -0,0 +1,733 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import com.google.android.mms.InvalidHeaderValueException;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+public class PduHeaders {
+    /**
+     * All pdu header fields.
+     */
+    public static final int BCC                             = 0x81;
+    public static final int CC                              = 0x82;
+    public static final int CONTENT_LOCATION                = 0x83;
+    public static final int CONTENT_TYPE                    = 0x84;
+    public static final int DATE                            = 0x85;
+    public static final int DELIVERY_REPORT                 = 0x86;
+    public static final int DELIVERY_TIME                   = 0x87;
+    public static final int EXPIRY                          = 0x88;
+    public static final int FROM                            = 0x89;
+    public static final int MESSAGE_CLASS                   = 0x8A;
+    public static final int MESSAGE_ID                      = 0x8B;
+    public static final int MESSAGE_TYPE                    = 0x8C;
+    public static final int MMS_VERSION                     = 0x8D;
+    public static final int MESSAGE_SIZE                    = 0x8E;
+    public static final int PRIORITY                        = 0x8F;
+
+    public static final int READ_REPLY                      = 0x90;
+    public static final int READ_REPORT                     = 0x90;
+    public static final int REPORT_ALLOWED                  = 0x91;
+    public static final int RESPONSE_STATUS                 = 0x92;
+    public static final int RESPONSE_TEXT                   = 0x93;
+    public static final int SENDER_VISIBILITY               = 0x94;
+    public static final int STATUS                          = 0x95;
+    public static final int SUBJECT                         = 0x96;
+    public static final int TO                              = 0x97;
+    public static final int TRANSACTION_ID                  = 0x98;
+    public static final int RETRIEVE_STATUS                 = 0x99;
+    public static final int RETRIEVE_TEXT                   = 0x9A;
+    public static final int READ_STATUS                     = 0x9B;
+    public static final int REPLY_CHARGING                  = 0x9C;
+    public static final int REPLY_CHARGING_DEADLINE         = 0x9D;
+    public static final int REPLY_CHARGING_ID               = 0x9E;
+    public static final int REPLY_CHARGING_SIZE             = 0x9F;
+
+    public static final int PREVIOUSLY_SENT_BY              = 0xA0;
+    public static final int PREVIOUSLY_SENT_DATE            = 0xA1;
+    public static final int STORE                           = 0xA2;
+    public static final int MM_STATE                        = 0xA3;
+    public static final int MM_FLAGS                        = 0xA4;
+    public static final int STORE_STATUS                    = 0xA5;
+    public static final int STORE_STATUS_TEXT               = 0xA6;
+    public static final int STORED                          = 0xA7;
+    public static final int ATTRIBUTES                      = 0xA8;
+    public static final int TOTALS                          = 0xA9;
+    public static final int MBOX_TOTALS                     = 0xAA;
+    public static final int QUOTAS                          = 0xAB;
+    public static final int MBOX_QUOTAS                     = 0xAC;
+    public static final int MESSAGE_COUNT                   = 0xAD;
+    public static final int CONTENT                         = 0xAE;
+    public static final int START                           = 0xAF;
+
+    public static final int ADDITIONAL_HEADERS              = 0xB0;
+    public static final int DISTRIBUTION_INDICATOR          = 0xB1;
+    public static final int ELEMENT_DESCRIPTOR              = 0xB2;
+    public static final int LIMIT                           = 0xB3;
+    public static final int RECOMMENDED_RETRIEVAL_MODE      = 0xB4;
+    public static final int RECOMMENDED_RETRIEVAL_MODE_TEXT = 0xB5;
+    public static final int STATUS_TEXT                     = 0xB6;
+    public static final int APPLIC_ID                       = 0xB7;
+    public static final int REPLY_APPLIC_ID                 = 0xB8;
+    public static final int AUX_APPLIC_ID                   = 0xB9;
+    public static final int CONTENT_CLASS                   = 0xBA;
+    public static final int DRM_CONTENT                     = 0xBB;
+    public static final int ADAPTATION_ALLOWED              = 0xBC;
+    public static final int REPLACE_ID                      = 0xBD;
+    public static final int CANCEL_ID                       = 0xBE;
+    public static final int CANCEL_STATUS                   = 0xBF;
+
+    /**
+     * X-Mms-Message-Type field types.
+     */
+    public static final int MESSAGE_TYPE_SEND_REQ           = 0x80;
+    public static final int MESSAGE_TYPE_SEND_CONF          = 0x81;
+    public static final int MESSAGE_TYPE_NOTIFICATION_IND   = 0x82;
+    public static final int MESSAGE_TYPE_NOTIFYRESP_IND     = 0x83;
+    public static final int MESSAGE_TYPE_RETRIEVE_CONF      = 0x84;
+    public static final int MESSAGE_TYPE_ACKNOWLEDGE_IND    = 0x85;
+    public static final int MESSAGE_TYPE_DELIVERY_IND       = 0x86;
+    public static final int MESSAGE_TYPE_READ_REC_IND       = 0x87;
+    public static final int MESSAGE_TYPE_READ_ORIG_IND      = 0x88;
+    public static final int MESSAGE_TYPE_FORWARD_REQ        = 0x89;
+    public static final int MESSAGE_TYPE_FORWARD_CONF       = 0x8A;
+    public static final int MESSAGE_TYPE_MBOX_STORE_REQ     = 0x8B;
+    public static final int MESSAGE_TYPE_MBOX_STORE_CONF    = 0x8C;
+    public static final int MESSAGE_TYPE_MBOX_VIEW_REQ      = 0x8D;
+    public static final int MESSAGE_TYPE_MBOX_VIEW_CONF     = 0x8E;
+    public static final int MESSAGE_TYPE_MBOX_UPLOAD_REQ    = 0x8F;
+    public static final int MESSAGE_TYPE_MBOX_UPLOAD_CONF   = 0x90;
+    public static final int MESSAGE_TYPE_MBOX_DELETE_REQ    = 0x91;
+    public static final int MESSAGE_TYPE_MBOX_DELETE_CONF   = 0x92;
+    public static final int MESSAGE_TYPE_MBOX_DESCR         = 0x93;
+    public static final int MESSAGE_TYPE_DELETE_REQ         = 0x94;
+    public static final int MESSAGE_TYPE_DELETE_CONF        = 0x95;
+    public static final int MESSAGE_TYPE_CANCEL_REQ         = 0x96;
+    public static final int MESSAGE_TYPE_CANCEL_CONF        = 0x97;
+
+    /**
+     *  X-Mms-Delivery-Report |
+     *  X-Mms-Read-Report |
+     *  X-Mms-Report-Allowed |
+     *  X-Mms-Sender-Visibility |
+     *  X-Mms-Store |
+     *  X-Mms-Stored |
+     *  X-Mms-Totals |
+     *  X-Mms-Quotas |
+     *  X-Mms-Distribution-Indicator |
+     *  X-Mms-DRM-Content |
+     *  X-Mms-Adaptation-Allowed |
+     *  field types.
+     */
+    public static final int VALUE_YES                       = 0x80;
+    public static final int VALUE_NO                        = 0x81;
+
+    /**
+     *  Delivery-Time |
+     *  Expiry and Reply-Charging-Deadline |
+     *  field type components.
+     */
+    public static final int VALUE_ABSOLUTE_TOKEN            = 0x80;
+    public static final int VALUE_RELATIVE_TOKEN            = 0x81;
+
+    /**
+     * X-Mms-MMS-Version field types.
+     */
+    public static final int MMS_VERSION_1_3                 = ((1 << 4) | 3);
+    public static final int MMS_VERSION_1_2                 = ((1 << 4) | 2);
+    public static final int MMS_VERSION_1_1                 = ((1 << 4) | 1);
+    public static final int MMS_VERSION_1_0                 = ((1 << 4) | 0);
+
+    // Current version is 1.2.
+    public static final int CURRENT_MMS_VERSION             = MMS_VERSION_1_2;
+
+    /**
+     *  From field type components.
+     */
+    public static final int FROM_ADDRESS_PRESENT_TOKEN      = 0x80;
+    public static final int FROM_INSERT_ADDRESS_TOKEN       = 0x81;
+
+    public static final String FROM_ADDRESS_PRESENT_TOKEN_STR = "address-present-token";
+    public static final String FROM_INSERT_ADDRESS_TOKEN_STR = "insert-address-token";
+
+    /**
+     *  X-Mms-Status Field.
+     */
+    public static final int STATUS_EXPIRED                  = 0x80;
+    public static final int STATUS_RETRIEVED                = 0x81;
+    public static final int STATUS_REJECTED                 = 0x82;
+    public static final int STATUS_DEFERRED                 = 0x83;
+    public static final int STATUS_UNRECOGNIZED             = 0x84;
+    public static final int STATUS_INDETERMINATE            = 0x85;
+    public static final int STATUS_FORWARDED                = 0x86;
+    public static final int STATUS_UNREACHABLE              = 0x87;
+
+    /**
+     *  MM-Flags field type components.
+     */
+    public static final int MM_FLAGS_ADD_TOKEN              = 0x80;
+    public static final int MM_FLAGS_REMOVE_TOKEN           = 0x81;
+    public static final int MM_FLAGS_FILTER_TOKEN           = 0x82;
+
+    /**
+     *  X-Mms-Message-Class field types.
+     */
+    public static final int MESSAGE_CLASS_PERSONAL          = 0x80;
+    public static final int MESSAGE_CLASS_ADVERTISEMENT     = 0x81;
+    public static final int MESSAGE_CLASS_INFORMATIONAL     = 0x82;
+    public static final int MESSAGE_CLASS_AUTO              = 0x83;
+
+    public static final String MESSAGE_CLASS_PERSONAL_STR = "personal";
+    public static final String MESSAGE_CLASS_ADVERTISEMENT_STR = "advertisement";
+    public static final String MESSAGE_CLASS_INFORMATIONAL_STR = "informational";
+    public static final String MESSAGE_CLASS_AUTO_STR = "auto";
+
+    /**
+     *  X-Mms-Priority field types.
+     */
+    public static final int PRIORITY_LOW                    = 0x80;
+    public static final int PRIORITY_NORMAL                 = 0x81;
+    public static final int PRIORITY_HIGH                   = 0x82;
+
+    /**
+     *  X-Mms-Response-Status field types.
+     */
+    public static final int RESPONSE_STATUS_OK                   = 0x80;
+    public static final int RESPONSE_STATUS_ERROR_UNSPECIFIED    = 0x81;
+    public static final int RESPONSE_STATUS_ERROR_SERVICE_DENIED = 0x82;
+
+    public static final int RESPONSE_STATUS_ERROR_MESSAGE_FORMAT_CORRUPT     = 0x83;
+    public static final int RESPONSE_STATUS_ERROR_SENDING_ADDRESS_UNRESOLVED = 0x84;
+
+    public static final int RESPONSE_STATUS_ERROR_MESSAGE_NOT_FOUND    = 0x85;
+    public static final int RESPONSE_STATUS_ERROR_NETWORK_PROBLEM      = 0x86;
+    public static final int RESPONSE_STATUS_ERROR_CONTENT_NOT_ACCEPTED = 0x87;
+    public static final int RESPONSE_STATUS_ERROR_UNSUPPORTED_MESSAGE  = 0x88;
+    public static final int RESPONSE_STATUS_ERROR_TRANSIENT_FAILURE    = 0xC0;
+
+    public static final int RESPONSE_STATUS_ERROR_TRANSIENT_SENDNG_ADDRESS_UNRESOLVED = 0xC1;
+    public static final int RESPONSE_STATUS_ERROR_TRANSIENT_MESSAGE_NOT_FOUND         = 0xC2;
+    public static final int RESPONSE_STATUS_ERROR_TRANSIENT_NETWORK_PROBLEM           = 0xC3;
+    public static final int RESPONSE_STATUS_ERROR_TRANSIENT_PARTIAL_SUCCESS           = 0xC4;
+
+    public static final int RESPONSE_STATUS_ERROR_PERMANENT_FAILURE                             = 0xE0;
+    public static final int RESPONSE_STATUS_ERROR_PERMANENT_SERVICE_DENIED                      = 0xE1;
+    public static final int RESPONSE_STATUS_ERROR_PERMANENT_MESSAGE_FORMAT_CORRUPT              = 0xE2;
+    public static final int RESPONSE_STATUS_ERROR_PERMANENT_SENDING_ADDRESS_UNRESOLVED          = 0xE3;
+    public static final int RESPONSE_STATUS_ERROR_PERMANENT_MESSAGE_NOT_FOUND                   = 0xE4;
+    public static final int RESPONSE_STATUS_ERROR_PERMANENT_CONTENT_NOT_ACCEPTED                = 0xE5;
+    public static final int RESPONSE_STATUS_ERROR_PERMANENT_REPLY_CHARGING_LIMITATIONS_NOT_MET  = 0xE6;
+    public static final int RESPONSE_STATUS_ERROR_PERMANENT_REPLY_CHARGING_REQUEST_NOT_ACCEPTED = 0xE6;
+    public static final int RESPONSE_STATUS_ERROR_PERMANENT_REPLY_CHARGING_FORWARDING_DENIED    = 0xE8;
+    public static final int RESPONSE_STATUS_ERROR_PERMANENT_REPLY_CHARGING_NOT_SUPPORTED        = 0xE9;
+    public static final int RESPONSE_STATUS_ERROR_PERMANENT_ADDRESS_HIDING_NOT_SUPPORTED        = 0xEA;
+    public static final int RESPONSE_STATUS_ERROR_PERMANENT_LACK_OF_PREPAID                     = 0xEB;
+    public static final int RESPONSE_STATUS_ERROR_PERMANENT_END                                 = 0xFF;
+
+    /**
+     *  X-Mms-Retrieve-Status field types.
+     */
+    public static final int RETRIEVE_STATUS_OK                                  = 0x80;
+    public static final int RETRIEVE_STATUS_ERROR_TRANSIENT_FAILURE             = 0xC0;
+    public static final int RETRIEVE_STATUS_ERROR_TRANSIENT_MESSAGE_NOT_FOUND   = 0xC1;
+    public static final int RETRIEVE_STATUS_ERROR_TRANSIENT_NETWORK_PROBLEM     = 0xC2;
+    public static final int RETRIEVE_STATUS_ERROR_PERMANENT_FAILURE             = 0xE0;
+    public static final int RETRIEVE_STATUS_ERROR_PERMANENT_SERVICE_DENIED      = 0xE1;
+    public static final int RETRIEVE_STATUS_ERROR_PERMANENT_MESSAGE_NOT_FOUND   = 0xE2;
+    public static final int RETRIEVE_STATUS_ERROR_PERMANENT_CONTENT_UNSUPPORTED = 0xE3;
+    public static final int RETRIEVE_STATUS_ERROR_END                           = 0xFF;
+
+    /**
+     *  X-Mms-Sender-Visibility field types.
+     */
+    public static final int SENDER_VISIBILITY_HIDE          = 0x80;
+    public static final int SENDER_VISIBILITY_SHOW          = 0x81;
+
+    /**
+     *  X-Mms-Read-Status field types.
+     */
+    public static final int READ_STATUS_READ                        = 0x80;
+    public static final int READ_STATUS__DELETED_WITHOUT_BEING_READ = 0x81;
+
+    /**
+     *  X-Mms-Cancel-Status field types.
+     */
+    public static final int CANCEL_STATUS_REQUEST_SUCCESSFULLY_RECEIVED = 0x80;
+    public static final int CANCEL_STATUS_REQUEST_CORRUPTED             = 0x81;
+
+    /**
+     *  X-Mms-Reply-Charging field types.
+     */
+    public static final int REPLY_CHARGING_REQUESTED           = 0x80;
+    public static final int REPLY_CHARGING_REQUESTED_TEXT_ONLY = 0x81;
+    public static final int REPLY_CHARGING_ACCEPTED            = 0x82;
+    public static final int REPLY_CHARGING_ACCEPTED_TEXT_ONLY  = 0x83;
+
+    /**
+     *  X-Mms-MM-State field types.
+     */
+    public static final int MM_STATE_DRAFT                  = 0x80;
+    public static final int MM_STATE_SENT                   = 0x81;
+    public static final int MM_STATE_NEW                    = 0x82;
+    public static final int MM_STATE_RETRIEVED              = 0x83;
+    public static final int MM_STATE_FORWARDED              = 0x84;
+
+    /**
+     * X-Mms-Recommended-Retrieval-Mode field types.
+     */
+    public static final int RECOMMENDED_RETRIEVAL_MODE_MANUAL = 0x80;
+
+    /**
+     *  X-Mms-Content-Class field types.
+     */
+    public static final int CONTENT_CLASS_TEXT              = 0x80;
+    public static final int CONTENT_CLASS_IMAGE_BASIC       = 0x81;
+    public static final int CONTENT_CLASS_IMAGE_RICH        = 0x82;
+    public static final int CONTENT_CLASS_VIDEO_BASIC       = 0x83;
+    public static final int CONTENT_CLASS_VIDEO_RICH        = 0x84;
+    public static final int CONTENT_CLASS_MEGAPIXEL         = 0x85;
+    public static final int CONTENT_CLASS_CONTENT_BASIC     = 0x86;
+    public static final int CONTENT_CLASS_CONTENT_RICH      = 0x87;
+
+    /**
+     *  X-Mms-Store-Status field types.
+     */
+    public static final int STORE_STATUS_SUCCESS                                = 0x80;
+    public static final int STORE_STATUS_ERROR_TRANSIENT_FAILURE                = 0xC0;
+    public static final int STORE_STATUS_ERROR_TRANSIENT_NETWORK_PROBLEM        = 0xC1;
+    public static final int STORE_STATUS_ERROR_PERMANENT_FAILURE                = 0xE0;
+    public static final int STORE_STATUS_ERROR_PERMANENT_SERVICE_DENIED         = 0xE1;
+    public static final int STORE_STATUS_ERROR_PERMANENT_MESSAGE_FORMAT_CORRUPT = 0xE2;
+    public static final int STORE_STATUS_ERROR_PERMANENT_MESSAGE_NOT_FOUND      = 0xE3;
+    public static final int STORE_STATUS_ERROR_PERMANENT_MMBOX_FULL             = 0xE4;
+    public static final int STORE_STATUS_ERROR_END                              = 0xFF;
+
+    /**
+     * The map contains the value of all headers.
+     */
+    private HashMap<Integer, Object> mHeaderMap = null;
+
+    /**
+     * Constructor of PduHeaders.
+     */
+    @UnsupportedAppUsage
+    public PduHeaders() {
+        mHeaderMap = new HashMap<Integer, Object>();
+    }
+
+    /**
+     * Get octet value by header field.
+     *
+     * @param field the field
+     * @return the octet value of the pdu header
+     *          with specified header field. Return 0 if
+     *          the value is not set.
+     */
+    @UnsupportedAppUsage
+    protected int getOctet(int field) {
+        Integer octet = (Integer) mHeaderMap.get(field);
+        if (null == octet) {
+            return 0;
+        }
+
+        return octet;
+    }
+
+    /**
+     * Set octet value to pdu header by header field.
+     *
+     * @param value the value
+     * @param field the field
+     * @throws InvalidHeaderValueException if the value is invalid.
+     */
+    @UnsupportedAppUsage
+    protected void setOctet(int value, int field)
+            throws InvalidHeaderValueException{
+        /**
+         * Check whether this field can be set for specific
+         * header and check validity of the field.
+         */
+        switch (field) {
+            case REPORT_ALLOWED:
+            case ADAPTATION_ALLOWED:
+            case DELIVERY_REPORT:
+            case DRM_CONTENT:
+            case DISTRIBUTION_INDICATOR:
+            case QUOTAS:
+            case READ_REPORT:
+            case STORE:
+            case STORED:
+            case TOTALS:
+            case SENDER_VISIBILITY:
+                if ((VALUE_YES != value) && (VALUE_NO != value)) {
+                    // Invalid value.
+                    throw new InvalidHeaderValueException("Invalid Octet value!");
+                }
+                break;
+            case READ_STATUS:
+                if ((READ_STATUS_READ != value) &&
+                        (READ_STATUS__DELETED_WITHOUT_BEING_READ != value)) {
+                    // Invalid value.
+                    throw new InvalidHeaderValueException("Invalid Octet value!");
+                }
+                break;
+            case CANCEL_STATUS:
+                if ((CANCEL_STATUS_REQUEST_SUCCESSFULLY_RECEIVED != value) &&
+                        (CANCEL_STATUS_REQUEST_CORRUPTED != value)) {
+                    // Invalid value.
+                    throw new InvalidHeaderValueException("Invalid Octet value!");
+                }
+                break;
+            case PRIORITY:
+                if ((value < PRIORITY_LOW) || (value > PRIORITY_HIGH)) {
+                    // Invalid value.
+                    throw new InvalidHeaderValueException("Invalid Octet value!");
+                }
+                break;
+            case STATUS:
+                if ((value < STATUS_EXPIRED) || (value > STATUS_UNREACHABLE)) {
+                    // Invalid value.
+                    throw new InvalidHeaderValueException("Invalid Octet value!");
+                }
+                break;
+            case REPLY_CHARGING:
+                if ((value < REPLY_CHARGING_REQUESTED)
+                        || (value > REPLY_CHARGING_ACCEPTED_TEXT_ONLY)) {
+                    // Invalid value.
+                    throw new InvalidHeaderValueException("Invalid Octet value!");
+                }
+                break;
+            case MM_STATE:
+                if ((value < MM_STATE_DRAFT) || (value > MM_STATE_FORWARDED)) {
+                    // Invalid value.
+                    throw new InvalidHeaderValueException("Invalid Octet value!");
+                }
+                break;
+            case RECOMMENDED_RETRIEVAL_MODE:
+                if (RECOMMENDED_RETRIEVAL_MODE_MANUAL != value) {
+                    // Invalid value.
+                    throw new InvalidHeaderValueException("Invalid Octet value!");
+                }
+                break;
+            case CONTENT_CLASS:
+                if ((value < CONTENT_CLASS_TEXT)
+                        || (value > CONTENT_CLASS_CONTENT_RICH)) {
+                    // Invalid value.
+                    throw new InvalidHeaderValueException("Invalid Octet value!");
+                }
+                break;
+            case RETRIEVE_STATUS:
+                // According to oma-ts-mms-enc-v1_3, section 7.3.50, we modify the invalid value.
+                if ((value > RETRIEVE_STATUS_ERROR_TRANSIENT_NETWORK_PROBLEM) &&
+                        (value < RETRIEVE_STATUS_ERROR_PERMANENT_FAILURE)) {
+                    value = RETRIEVE_STATUS_ERROR_TRANSIENT_FAILURE;
+                } else if ((value > RETRIEVE_STATUS_ERROR_PERMANENT_CONTENT_UNSUPPORTED) &&
+                        (value <= RETRIEVE_STATUS_ERROR_END)) {
+                    value = RETRIEVE_STATUS_ERROR_PERMANENT_FAILURE;
+                } else if ((value < RETRIEVE_STATUS_OK) ||
+                        ((value > RETRIEVE_STATUS_OK) &&
+                                (value < RETRIEVE_STATUS_ERROR_TRANSIENT_FAILURE)) ||
+                                (value > RETRIEVE_STATUS_ERROR_END)) {
+                    value = RETRIEVE_STATUS_ERROR_PERMANENT_FAILURE;
+                }
+                break;
+            case STORE_STATUS:
+                // According to oma-ts-mms-enc-v1_3, section 7.3.58, we modify the invalid value.
+                if ((value > STORE_STATUS_ERROR_TRANSIENT_NETWORK_PROBLEM) &&
+                        (value < STORE_STATUS_ERROR_PERMANENT_FAILURE)) {
+                    value = STORE_STATUS_ERROR_TRANSIENT_FAILURE;
+                } else if ((value > STORE_STATUS_ERROR_PERMANENT_MMBOX_FULL) &&
+                        (value <= STORE_STATUS_ERROR_END)) {
+                    value = STORE_STATUS_ERROR_PERMANENT_FAILURE;
+                } else if ((value < STORE_STATUS_SUCCESS) ||
+                        ((value > STORE_STATUS_SUCCESS) &&
+                                (value < STORE_STATUS_ERROR_TRANSIENT_FAILURE)) ||
+                                (value > STORE_STATUS_ERROR_END)) {
+                    value = STORE_STATUS_ERROR_PERMANENT_FAILURE;
+                }
+                break;
+            case RESPONSE_STATUS:
+                // According to oma-ts-mms-enc-v1_3, section 7.3.48, we modify the invalid value.
+                if ((value > RESPONSE_STATUS_ERROR_TRANSIENT_PARTIAL_SUCCESS) &&
+                        (value < RESPONSE_STATUS_ERROR_PERMANENT_FAILURE)) {
+                    value = RESPONSE_STATUS_ERROR_TRANSIENT_FAILURE;
+                } else if (((value > RESPONSE_STATUS_ERROR_PERMANENT_LACK_OF_PREPAID) &&
+                        (value <= RESPONSE_STATUS_ERROR_PERMANENT_END)) ||
+                        (value < RESPONSE_STATUS_OK) ||
+                        ((value > RESPONSE_STATUS_ERROR_UNSUPPORTED_MESSAGE) &&
+                                (value < RESPONSE_STATUS_ERROR_TRANSIENT_FAILURE)) ||
+                                (value > RESPONSE_STATUS_ERROR_PERMANENT_END)) {
+                    value = RESPONSE_STATUS_ERROR_PERMANENT_FAILURE;
+                }
+                break;
+            case MMS_VERSION:
+                if ((value < MMS_VERSION_1_0)|| (value > MMS_VERSION_1_3)) {
+                    value = CURRENT_MMS_VERSION; // Current version is the default value.
+                }
+                break;
+            case MESSAGE_TYPE:
+                if ((value < MESSAGE_TYPE_SEND_REQ) || (value > MESSAGE_TYPE_CANCEL_CONF)) {
+                    // Invalid value.
+                    throw new InvalidHeaderValueException("Invalid Octet value!");
+                }
+                break;
+            default:
+                // This header value should not be Octect.
+                throw new RuntimeException("Invalid header field!");
+        }
+        mHeaderMap.put(field, value);
+    }
+
+    /**
+     * Get TextString value by header field.
+     *
+     * @param field the field
+     * @return the TextString value of the pdu header
+     *          with specified header field
+     */
+    @UnsupportedAppUsage
+    protected byte[] getTextString(int field) {
+        return (byte[]) mHeaderMap.get(field);
+    }
+
+    /**
+     * Set TextString value to pdu header by header field.
+     *
+     * @param value the value
+     * @param field the field
+     * @return the TextString value of the pdu header
+     *          with specified header field
+     * @throws NullPointerException if the value is null.
+     */
+    protected void setTextString(byte[] value, int field) {
+        /**
+         * Check whether this field can be set for specific
+         * header and check validity of the field.
+         */
+        if (null == value) {
+            throw new NullPointerException();
+        }
+
+        switch (field) {
+            case TRANSACTION_ID:
+            case REPLY_CHARGING_ID:
+            case AUX_APPLIC_ID:
+            case APPLIC_ID:
+            case REPLY_APPLIC_ID:
+            case MESSAGE_ID:
+            case REPLACE_ID:
+            case CANCEL_ID:
+            case CONTENT_LOCATION:
+            case MESSAGE_CLASS:
+            case CONTENT_TYPE:
+                break;
+            default:
+                // This header value should not be Text-String.
+                throw new RuntimeException("Invalid header field!");
+        }
+        mHeaderMap.put(field, value);
+    }
+
+    /**
+     * Get EncodedStringValue value by header field.
+     *
+     * @param field the field
+     * @return the EncodedStringValue value of the pdu header
+     *          with specified header field
+     */
+    @UnsupportedAppUsage
+    protected EncodedStringValue getEncodedStringValue(int field) {
+        return (EncodedStringValue) mHeaderMap.get(field);
+    }
+
+    /**
+     * Get TO, CC or BCC header value.
+     *
+     * @param field the field
+     * @return the EncodeStringValue array of the pdu header
+     *          with specified header field
+     */
+    @UnsupportedAppUsage
+    protected EncodedStringValue[] getEncodedStringValues(int field) {
+        ArrayList<EncodedStringValue> list =
+                (ArrayList<EncodedStringValue>) mHeaderMap.get(field);
+        if (null == list) {
+            return null;
+        }
+        EncodedStringValue[] values = new EncodedStringValue[list.size()];
+        return list.toArray(values);
+    }
+
+    /**
+     * Set EncodedStringValue value to pdu header by header field.
+     *
+     * @param value the value
+     * @param field the field
+     * @return the EncodedStringValue value of the pdu header
+     *          with specified header field
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    protected void setEncodedStringValue(EncodedStringValue value, int field) {
+        /**
+         * Check whether this field can be set for specific
+         * header and check validity of the field.
+         */
+        if (null == value) {
+            throw new NullPointerException();
+        }
+
+        switch (field) {
+            case SUBJECT:
+            case RECOMMENDED_RETRIEVAL_MODE_TEXT:
+            case RETRIEVE_TEXT:
+            case STATUS_TEXT:
+            case STORE_STATUS_TEXT:
+            case RESPONSE_TEXT:
+            case FROM:
+            case PREVIOUSLY_SENT_BY:
+            case MM_FLAGS:
+                break;
+            default:
+                // This header value should not be Encoded-String-Value.
+                throw new RuntimeException("Invalid header field!");
+        }
+
+        mHeaderMap.put(field, value);
+    }
+
+    /**
+     * Set TO, CC or BCC header value.
+     *
+     * @param value the value
+     * @param field the field
+     * @return the EncodedStringValue value array of the pdu header
+     *          with specified header field
+     * @throws NullPointerException if the value is null.
+     */
+    protected void setEncodedStringValues(EncodedStringValue[] value, int field) {
+        /**
+         * Check whether this field can be set for specific
+         * header and check validity of the field.
+         */
+        if (null == value) {
+            throw new NullPointerException();
+        }
+
+        switch (field) {
+            case BCC:
+            case CC:
+            case TO:
+                break;
+            default:
+                // This header value should not be Encoded-String-Value.
+                throw new RuntimeException("Invalid header field!");
+        }
+
+        ArrayList<EncodedStringValue> list = new ArrayList<EncodedStringValue>();
+        for (int i = 0; i < value.length; i++) {
+            list.add(value[i]);
+        }
+        mHeaderMap.put(field, list);
+    }
+
+    /**
+     * Append one EncodedStringValue to another.
+     *
+     * @param value the EncodedStringValue to append
+     * @param field the field
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    protected void appendEncodedStringValue(EncodedStringValue value,
+                                    int field) {
+        if (null == value) {
+            throw new NullPointerException();
+        }
+
+        switch (field) {
+            case BCC:
+            case CC:
+            case TO:
+                break;
+            default:
+                throw new RuntimeException("Invalid header field!");
+        }
+
+        ArrayList<EncodedStringValue> list =
+            (ArrayList<EncodedStringValue>) mHeaderMap.get(field);
+        if (null == list) {
+            list  = new ArrayList<EncodedStringValue>();
+        }
+        list.add(value);
+        mHeaderMap.put(field, list);
+    }
+
+    /**
+     * Get LongInteger value by header field.
+     *
+     * @param field the field
+     * @return the LongInteger value of the pdu header
+     *          with specified header field. if return -1, the
+     *          field is not existed in pdu header.
+     */
+    @UnsupportedAppUsage
+    protected long getLongInteger(int field) {
+        Long longInteger = (Long) mHeaderMap.get(field);
+        if (null == longInteger) {
+            return -1;
+        }
+
+        return longInteger.longValue();
+    }
+
+    /**
+     * Set LongInteger value to pdu header by header field.
+     *
+     * @param value the value
+     * @param field the field
+     */
+    @UnsupportedAppUsage
+    protected void setLongInteger(long value, int field) {
+        /**
+         * Check whether this field can be set for specific
+         * header and check validity of the field.
+         */
+        switch (field) {
+            case DATE:
+            case REPLY_CHARGING_SIZE:
+            case MESSAGE_SIZE:
+            case MESSAGE_COUNT:
+            case START:
+            case LIMIT:
+            case DELIVERY_TIME:
+            case EXPIRY:
+            case REPLY_CHARGING_DEADLINE:
+            case PREVIOUSLY_SENT_DATE:
+                break;
+            default:
+                // This header value should not be LongInteger.
+                throw new RuntimeException("Invalid header field!");
+        }
+        mHeaderMap.put(field, value);
+    }
+}
diff --git a/telephony/java/com/google/android/mms/pdu/PduParser.java b/telephony/java/com/google/android/mms/pdu/PduParser.java
new file mode 100755
index 0000000..f483994
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/PduParser.java
@@ -0,0 +1,2023 @@
+/*
+ * Copyright (C) 2007-2008 Esmertec AG.
+ * Copyright (C) 2007-2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import android.util.Log;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import com.google.android.mms.ContentType;
+import com.google.android.mms.InvalidHeaderValueException;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.UnsupportedEncodingException;
+import java.util.Arrays;
+import java.util.HashMap;
+
+public class PduParser {
+    /**
+     *  The next are WAP values defined in WSP specification.
+     */
+    private static final int QUOTE = 127;
+    private static final int LENGTH_QUOTE = 31;
+    private static final int TEXT_MIN = 32;
+    private static final int TEXT_MAX = 127;
+    private static final int SHORT_INTEGER_MAX = 127;
+    private static final int SHORT_LENGTH_MAX = 30;
+    private static final int LONG_INTEGER_LENGTH_MAX = 8;
+    private static final int QUOTED_STRING_FLAG = 34;
+    private static final int END_STRING_FLAG = 0x00;
+    //The next two are used by the interface "parseWapString" to
+    //distinguish Text-String and Quoted-String.
+    private static final int TYPE_TEXT_STRING = 0;
+    private static final int TYPE_QUOTED_STRING = 1;
+    private static final int TYPE_TOKEN_STRING = 2;
+
+    /**
+     * Specify the part position.
+     */
+    private static final int THE_FIRST_PART = 0;
+    private static final int THE_LAST_PART = 1;
+
+    /**
+     * The pdu data.
+     */
+    private ByteArrayInputStream mPduDataStream = null;
+
+    /**
+     * Store pdu headers
+     */
+    private PduHeaders mHeaders = null;
+
+    /**
+     * Store pdu parts.
+     */
+    private PduBody mBody = null;
+
+    /**
+     * Store the "type" parameter in "Content-Type" header field.
+     */
+    private static byte[] mTypeParam = null;
+
+    /**
+     * Store the "start" parameter in "Content-Type" header field.
+     */
+    private static byte[] mStartParam = null;
+
+    /**
+     * The log tag.
+     */
+    private static final String LOG_TAG = "PduParser";
+    private static final boolean DEBUG = false;
+    private static final boolean LOCAL_LOGV = false;
+
+    /**
+     * Whether to parse content-disposition part header
+     */
+    private final boolean mParseContentDisposition;
+
+    /**
+     * Constructor.
+     *
+     * @param pduDataStream pdu data to be parsed
+     * @param parseContentDisposition whether to parse the Content-Disposition part header
+     */
+    @UnsupportedAppUsage
+    public PduParser(byte[] pduDataStream, boolean parseContentDisposition) {
+        mPduDataStream = new ByteArrayInputStream(pduDataStream);
+        mParseContentDisposition = parseContentDisposition;
+    }
+
+    /**
+     * Parse the pdu.
+     *
+     * @return the pdu structure if parsing successfully.
+     *         null if parsing error happened or mandatory fields are not set.
+     */
+    @UnsupportedAppUsage
+    public GenericPdu parse(){
+        if (mPduDataStream == null) {
+            return null;
+        }
+
+        /* parse headers */
+        mHeaders = parseHeaders(mPduDataStream);
+        if (null == mHeaders) {
+            // Parse headers failed.
+            return null;
+        }
+
+        /* get the message type */
+        int messageType = mHeaders.getOctet(PduHeaders.MESSAGE_TYPE);
+
+        /* check mandatory header fields */
+        if (false == checkMandatoryHeader(mHeaders)) {
+            log("check mandatory headers failed!");
+            return null;
+        }
+
+        if ((PduHeaders.MESSAGE_TYPE_SEND_REQ == messageType) ||
+                (PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF == messageType)) {
+            /* need to parse the parts */
+            mBody = parseParts(mPduDataStream);
+            if (null == mBody) {
+                // Parse parts failed.
+                return null;
+            }
+        }
+
+        switch (messageType) {
+            case PduHeaders.MESSAGE_TYPE_SEND_REQ:
+                if (LOCAL_LOGV) {
+                    Log.v(LOG_TAG, "parse: MESSAGE_TYPE_SEND_REQ");
+                }
+                SendReq sendReq = new SendReq(mHeaders, mBody);
+                return sendReq;
+            case PduHeaders.MESSAGE_TYPE_SEND_CONF:
+                if (LOCAL_LOGV) {
+                    Log.v(LOG_TAG, "parse: MESSAGE_TYPE_SEND_CONF");
+                }
+                SendConf sendConf = new SendConf(mHeaders);
+                return sendConf;
+            case PduHeaders.MESSAGE_TYPE_NOTIFICATION_IND:
+                if (LOCAL_LOGV) {
+                    Log.v(LOG_TAG, "parse: MESSAGE_TYPE_NOTIFICATION_IND");
+                }
+                NotificationInd notificationInd =
+                    new NotificationInd(mHeaders);
+                return notificationInd;
+            case PduHeaders.MESSAGE_TYPE_NOTIFYRESP_IND:
+                if (LOCAL_LOGV) {
+                    Log.v(LOG_TAG, "parse: MESSAGE_TYPE_NOTIFYRESP_IND");
+                }
+                NotifyRespInd notifyRespInd =
+                    new NotifyRespInd(mHeaders);
+                return notifyRespInd;
+            case PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF:
+                if (LOCAL_LOGV) {
+                    Log.v(LOG_TAG, "parse: MESSAGE_TYPE_RETRIEVE_CONF");
+                }
+                RetrieveConf retrieveConf =
+                    new RetrieveConf(mHeaders, mBody);
+
+                byte[] contentType = retrieveConf.getContentType();
+                if (null == contentType) {
+                    return null;
+                }
+                String ctTypeStr = new String(contentType);
+                if (ctTypeStr.equals(ContentType.MULTIPART_MIXED)
+                        || ctTypeStr.equals(ContentType.MULTIPART_RELATED)
+                        || ctTypeStr.equals(ContentType.MULTIPART_ALTERNATIVE)) {
+                    // The MMS content type must be "application/vnd.wap.multipart.mixed"
+                    // or "application/vnd.wap.multipart.related"
+                    // or "application/vnd.wap.multipart.alternative"
+                    return retrieveConf;
+                } else if (ctTypeStr.equals(ContentType.MULTIPART_ALTERNATIVE)) {
+                    // "application/vnd.wap.multipart.alternative"
+                    // should take only the first part.
+                    PduPart firstPart = mBody.getPart(0);
+                    mBody.removeAll();
+                    mBody.addPart(0, firstPart);
+                    return retrieveConf;
+                }
+                return null;
+            case PduHeaders.MESSAGE_TYPE_DELIVERY_IND:
+                if (LOCAL_LOGV) {
+                    Log.v(LOG_TAG, "parse: MESSAGE_TYPE_DELIVERY_IND");
+                }
+                DeliveryInd deliveryInd =
+                    new DeliveryInd(mHeaders);
+                return deliveryInd;
+            case PduHeaders.MESSAGE_TYPE_ACKNOWLEDGE_IND:
+                if (LOCAL_LOGV) {
+                    Log.v(LOG_TAG, "parse: MESSAGE_TYPE_ACKNOWLEDGE_IND");
+                }
+                AcknowledgeInd acknowledgeInd =
+                    new AcknowledgeInd(mHeaders);
+                return acknowledgeInd;
+            case PduHeaders.MESSAGE_TYPE_READ_ORIG_IND:
+                if (LOCAL_LOGV) {
+                    Log.v(LOG_TAG, "parse: MESSAGE_TYPE_READ_ORIG_IND");
+                }
+                ReadOrigInd readOrigInd =
+                    new ReadOrigInd(mHeaders);
+                return readOrigInd;
+            case PduHeaders.MESSAGE_TYPE_READ_REC_IND:
+                if (LOCAL_LOGV) {
+                    Log.v(LOG_TAG, "parse: MESSAGE_TYPE_READ_REC_IND");
+                }
+                ReadRecInd readRecInd =
+                    new ReadRecInd(mHeaders);
+                return readRecInd;
+            default:
+                log("Parser doesn't support this message type in this version!");
+            return null;
+        }
+    }
+
+    /**
+     * Parse pdu headers.
+     *
+     * @param pduDataStream pdu data input stream
+     * @return headers in PduHeaders structure, null when parse fail
+     */
+    protected PduHeaders parseHeaders(ByteArrayInputStream pduDataStream){
+        if (pduDataStream == null) {
+            return null;
+        }
+        boolean keepParsing = true;
+        PduHeaders headers = new PduHeaders();
+
+        while (keepParsing && (pduDataStream.available() > 0)) {
+            pduDataStream.mark(1);
+            int headerField = extractByteValue(pduDataStream);
+            /* parse custom text header */
+            if ((headerField >= TEXT_MIN) && (headerField <= TEXT_MAX)) {
+                pduDataStream.reset();
+                byte [] bVal = parseWapString(pduDataStream, TYPE_TEXT_STRING);
+                if (LOCAL_LOGV) {
+                    Log.v(LOG_TAG, "TextHeader: " + new String(bVal));
+                }
+                /* we should ignore it at the moment */
+                continue;
+            }
+            switch (headerField) {
+                case PduHeaders.MESSAGE_TYPE:
+                {
+                    int messageType = extractByteValue(pduDataStream);
+                    if (LOCAL_LOGV) {
+                        Log.v(LOG_TAG, "parseHeaders: messageType: " + messageType);
+                    }
+                    switch (messageType) {
+                        // We don't support these kind of messages now.
+                        case PduHeaders.MESSAGE_TYPE_FORWARD_REQ:
+                        case PduHeaders.MESSAGE_TYPE_FORWARD_CONF:
+                        case PduHeaders.MESSAGE_TYPE_MBOX_STORE_REQ:
+                        case PduHeaders.MESSAGE_TYPE_MBOX_STORE_CONF:
+                        case PduHeaders.MESSAGE_TYPE_MBOX_VIEW_REQ:
+                        case PduHeaders.MESSAGE_TYPE_MBOX_VIEW_CONF:
+                        case PduHeaders.MESSAGE_TYPE_MBOX_UPLOAD_REQ:
+                        case PduHeaders.MESSAGE_TYPE_MBOX_UPLOAD_CONF:
+                        case PduHeaders.MESSAGE_TYPE_MBOX_DELETE_REQ:
+                        case PduHeaders.MESSAGE_TYPE_MBOX_DELETE_CONF:
+                        case PduHeaders.MESSAGE_TYPE_MBOX_DESCR:
+                        case PduHeaders.MESSAGE_TYPE_DELETE_REQ:
+                        case PduHeaders.MESSAGE_TYPE_DELETE_CONF:
+                        case PduHeaders.MESSAGE_TYPE_CANCEL_REQ:
+                        case PduHeaders.MESSAGE_TYPE_CANCEL_CONF:
+                            return null;
+                    }
+                    try {
+                        headers.setOctet(messageType, headerField);
+                    } catch(InvalidHeaderValueException e) {
+                        log("Set invalid Octet value: " + messageType +
+                                " into the header filed: " + headerField);
+                        return null;
+                    } catch(RuntimeException e) {
+                        log(headerField + "is not Octet header field!");
+                        return null;
+                    }
+                    break;
+                }
+                /* Octect value */
+                case PduHeaders.REPORT_ALLOWED:
+                case PduHeaders.ADAPTATION_ALLOWED:
+                case PduHeaders.DELIVERY_REPORT:
+                case PduHeaders.DRM_CONTENT:
+                case PduHeaders.DISTRIBUTION_INDICATOR:
+                case PduHeaders.QUOTAS:
+                case PduHeaders.READ_REPORT:
+                case PduHeaders.STORE:
+                case PduHeaders.STORED:
+                case PduHeaders.TOTALS:
+                case PduHeaders.SENDER_VISIBILITY:
+                case PduHeaders.READ_STATUS:
+                case PduHeaders.CANCEL_STATUS:
+                case PduHeaders.PRIORITY:
+                case PduHeaders.STATUS:
+                case PduHeaders.REPLY_CHARGING:
+                case PduHeaders.MM_STATE:
+                case PduHeaders.RECOMMENDED_RETRIEVAL_MODE:
+                case PduHeaders.CONTENT_CLASS:
+                case PduHeaders.RETRIEVE_STATUS:
+                case PduHeaders.STORE_STATUS:
+                    /**
+                     * The following field has a different value when
+                     * used in the M-Mbox-Delete.conf and M-Delete.conf PDU.
+                     * For now we ignore this fact, since we do not support these PDUs
+                     */
+                case PduHeaders.RESPONSE_STATUS:
+                {
+                    int value = extractByteValue(pduDataStream);
+                    if (LOCAL_LOGV) {
+                        Log.v(LOG_TAG, "parseHeaders: byte: " + headerField + " value: " +
+                                value);
+                    }
+
+                    try {
+                        headers.setOctet(value, headerField);
+                    } catch(InvalidHeaderValueException e) {
+                        log("Set invalid Octet value: " + value +
+                                " into the header filed: " + headerField);
+                        return null;
+                    } catch(RuntimeException e) {
+                        log(headerField + "is not Octet header field!");
+                        return null;
+                    }
+                    break;
+                }
+
+                /* Long-Integer */
+                case PduHeaders.DATE:
+                case PduHeaders.REPLY_CHARGING_SIZE:
+                case PduHeaders.MESSAGE_SIZE:
+                {
+                    try {
+                        long value = parseLongInteger(pduDataStream);
+                        if (LOCAL_LOGV) {
+                            Log.v(LOG_TAG, "parseHeaders: longint: " + headerField + " value: " +
+                                    value);
+                        }
+                        headers.setLongInteger(value, headerField);
+                    } catch(RuntimeException e) {
+                        log(headerField + "is not Long-Integer header field!");
+                        return null;
+                    }
+                    break;
+                }
+
+                /* Integer-Value */
+                case PduHeaders.MESSAGE_COUNT:
+                case PduHeaders.START:
+                case PduHeaders.LIMIT:
+                {
+                    try {
+                        long value = parseIntegerValue(pduDataStream);
+                        if (LOCAL_LOGV) {
+                            Log.v(LOG_TAG, "parseHeaders: int: " + headerField + " value: " +
+                                    value);
+                        }
+                        headers.setLongInteger(value, headerField);
+                    } catch(RuntimeException e) {
+                        log(headerField + "is not Long-Integer header field!");
+                        return null;
+                    }
+                    break;
+                }
+
+                /* Text-String */
+                case PduHeaders.TRANSACTION_ID:
+                case PduHeaders.REPLY_CHARGING_ID:
+                case PduHeaders.AUX_APPLIC_ID:
+                case PduHeaders.APPLIC_ID:
+                case PduHeaders.REPLY_APPLIC_ID:
+                    /**
+                     * The next three header fields are email addresses
+                     * as defined in RFC2822,
+                     * not including the characters "<" and ">"
+                     */
+                case PduHeaders.MESSAGE_ID:
+                case PduHeaders.REPLACE_ID:
+                case PduHeaders.CANCEL_ID:
+                    /**
+                     * The following field has a different value when
+                     * used in the M-Mbox-Delete.conf and M-Delete.conf PDU.
+                     * For now we ignore this fact, since we do not support these PDUs
+                     */
+                case PduHeaders.CONTENT_LOCATION:
+                {
+                    byte[] value = parseWapString(pduDataStream, TYPE_TEXT_STRING);
+                    if (null != value) {
+                        try {
+                            if (LOCAL_LOGV) {
+                                Log.v(LOG_TAG, "parseHeaders: string: " + headerField + " value: " +
+                                        new String(value));
+                            }
+                            headers.setTextString(value, headerField);
+                        } catch(NullPointerException e) {
+                            log("null pointer error!");
+                        } catch(RuntimeException e) {
+                            log(headerField + "is not Text-String header field!");
+                            return null;
+                        }
+                    }
+                    break;
+                }
+
+                /* Encoded-string-value */
+                case PduHeaders.SUBJECT:
+                case PduHeaders.RECOMMENDED_RETRIEVAL_MODE_TEXT:
+                case PduHeaders.RETRIEVE_TEXT:
+                case PduHeaders.STATUS_TEXT:
+                case PduHeaders.STORE_STATUS_TEXT:
+                    /* the next one is not support
+                     * M-Mbox-Delete.conf and M-Delete.conf now */
+                case PduHeaders.RESPONSE_TEXT:
+                {
+                    EncodedStringValue value =
+                        parseEncodedStringValue(pduDataStream);
+                    if (null != value) {
+                        try {
+                            if (LOCAL_LOGV) {
+                                Log.v(LOG_TAG, "parseHeaders: encoded string: " + headerField
+                                        + " value: " + value.getString());
+                            }
+                            headers.setEncodedStringValue(value, headerField);
+                        } catch(NullPointerException e) {
+                            log("null pointer error!");
+                        } catch (RuntimeException e) {
+                            log(headerField + "is not Encoded-String-Value header field!");
+                            return null;
+                        }
+                    }
+                    break;
+                }
+
+                /* Addressing model */
+                case PduHeaders.BCC:
+                case PduHeaders.CC:
+                case PduHeaders.TO:
+                {
+                    EncodedStringValue value =
+                        parseEncodedStringValue(pduDataStream);
+                    if (null != value) {
+                        byte[] address = value.getTextString();
+                        if (null != address) {
+                            String str = new String(address);
+                            if (LOCAL_LOGV) {
+                                Log.v(LOG_TAG, "parseHeaders: (to/cc/bcc) address: " + headerField
+                                        + " value: " + str);
+                            }
+                            int endIndex = str.indexOf("/");
+                            if (endIndex > 0) {
+                                str = str.substring(0, endIndex);
+                            }
+                            try {
+                                value.setTextString(str.getBytes());
+                            } catch(NullPointerException e) {
+                                log("null pointer error!");
+                                return null;
+                            }
+                        }
+
+                        try {
+                            headers.appendEncodedStringValue(value, headerField);
+                        } catch(NullPointerException e) {
+                            log("null pointer error!");
+                        } catch(RuntimeException e) {
+                            log(headerField + "is not Encoded-String-Value header field!");
+                            return null;
+                        }
+                    }
+                    break;
+                }
+
+                /* Value-length
+                 * (Absolute-token Date-value | Relative-token Delta-seconds-value) */
+                case PduHeaders.DELIVERY_TIME:
+                case PduHeaders.EXPIRY:
+                case PduHeaders.REPLY_CHARGING_DEADLINE:
+                {
+                    /* parse Value-length */
+                    parseValueLength(pduDataStream);
+
+                    /* Absolute-token or Relative-token */
+                    int token = extractByteValue(pduDataStream);
+
+                    /* Date-value or Delta-seconds-value */
+                    long timeValue;
+                    try {
+                        timeValue = parseLongInteger(pduDataStream);
+                    } catch(RuntimeException e) {
+                        log(headerField + "is not Long-Integer header field!");
+                        return null;
+                    }
+                    if (PduHeaders.VALUE_RELATIVE_TOKEN == token) {
+                        /* need to convert the Delta-seconds-value
+                         * into Date-value */
+                        timeValue = System.currentTimeMillis()/1000 + timeValue;
+                    }
+
+                    try {
+                        if (LOCAL_LOGV) {
+                            Log.v(LOG_TAG, "parseHeaders: time value: " + headerField
+                                    + " value: " + timeValue);
+                        }
+                        headers.setLongInteger(timeValue, headerField);
+                    } catch(RuntimeException e) {
+                        log(headerField + "is not Long-Integer header field!");
+                        return null;
+                    }
+                    break;
+                }
+
+                case PduHeaders.FROM: {
+                    /* From-value =
+                     * Value-length
+                     * (Address-present-token Encoded-string-value | Insert-address-token)
+                     */
+                    EncodedStringValue from = null;
+                    parseValueLength(pduDataStream); /* parse value-length */
+
+                    /* Address-present-token or Insert-address-token */
+                    int fromToken = extractByteValue(pduDataStream);
+
+                    /* Address-present-token or Insert-address-token */
+                    if (PduHeaders.FROM_ADDRESS_PRESENT_TOKEN == fromToken) {
+                        /* Encoded-string-value */
+                        from = parseEncodedStringValue(pduDataStream);
+                        if (null != from) {
+                            byte[] address = from.getTextString();
+                            if (null != address) {
+                                String str = new String(address);
+                                int endIndex = str.indexOf("/");
+                                if (endIndex > 0) {
+                                    str = str.substring(0, endIndex);
+                                }
+                                try {
+                                    from.setTextString(str.getBytes());
+                                } catch(NullPointerException e) {
+                                    log("null pointer error!");
+                                    return null;
+                                }
+                            }
+                        }
+                    } else {
+                        try {
+                            from = new EncodedStringValue(
+                                    PduHeaders.FROM_INSERT_ADDRESS_TOKEN_STR.getBytes());
+                        } catch(NullPointerException e) {
+                            log(headerField + "is not Encoded-String-Value header field!");
+                            return null;
+                        }
+                    }
+
+                    try {
+                        if (LOCAL_LOGV) {
+                            Log.v(LOG_TAG, "parseHeaders: from address: " + headerField
+                                    + " value: " + from.getString());
+                        }
+                        headers.setEncodedStringValue(from, PduHeaders.FROM);
+                    } catch(NullPointerException e) {
+                        log("null pointer error!");
+                    } catch(RuntimeException e) {
+                        log(headerField + "is not Encoded-String-Value header field!");
+                        return null;
+                    }
+                    break;
+                }
+
+                case PduHeaders.MESSAGE_CLASS: {
+                    /* Message-class-value = Class-identifier | Token-text */
+                    pduDataStream.mark(1);
+                    int messageClass = extractByteValue(pduDataStream);
+                    if (LOCAL_LOGV) {
+                        Log.v(LOG_TAG, "parseHeaders: MESSAGE_CLASS: " + headerField
+                                + " value: " + messageClass);
+                    }
+
+                    if (messageClass >= PduHeaders.MESSAGE_CLASS_PERSONAL) {
+                        /* Class-identifier */
+                        try {
+                            if (PduHeaders.MESSAGE_CLASS_PERSONAL == messageClass) {
+                                headers.setTextString(
+                                        PduHeaders.MESSAGE_CLASS_PERSONAL_STR.getBytes(),
+                                        PduHeaders.MESSAGE_CLASS);
+                            } else if (PduHeaders.MESSAGE_CLASS_ADVERTISEMENT == messageClass) {
+                                headers.setTextString(
+                                        PduHeaders.MESSAGE_CLASS_ADVERTISEMENT_STR.getBytes(),
+                                        PduHeaders.MESSAGE_CLASS);
+                            } else if (PduHeaders.MESSAGE_CLASS_INFORMATIONAL == messageClass) {
+                                headers.setTextString(
+                                        PduHeaders.MESSAGE_CLASS_INFORMATIONAL_STR.getBytes(),
+                                        PduHeaders.MESSAGE_CLASS);
+                            } else if (PduHeaders.MESSAGE_CLASS_AUTO == messageClass) {
+                                headers.setTextString(
+                                        PduHeaders.MESSAGE_CLASS_AUTO_STR.getBytes(),
+                                        PduHeaders.MESSAGE_CLASS);
+                            }
+                        } catch(NullPointerException e) {
+                            log("null pointer error!");
+                        } catch(RuntimeException e) {
+                            log(headerField + "is not Text-String header field!");
+                            return null;
+                        }
+                    } else {
+                        /* Token-text */
+                        pduDataStream.reset();
+                        byte[] messageClassString = parseWapString(pduDataStream, TYPE_TEXT_STRING);
+                        if (null != messageClassString) {
+                            try {
+                                headers.setTextString(messageClassString, PduHeaders.MESSAGE_CLASS);
+                            } catch(NullPointerException e) {
+                                log("null pointer error!");
+                            } catch(RuntimeException e) {
+                                log(headerField + "is not Text-String header field!");
+                                return null;
+                            }
+                        }
+                    }
+                    break;
+                }
+
+                case PduHeaders.MMS_VERSION: {
+                    int version = parseShortInteger(pduDataStream);
+
+                    try {
+                        if (LOCAL_LOGV) {
+                            Log.v(LOG_TAG, "parseHeaders: MMS_VERSION: " + headerField
+                                    + " value: " + version);
+                        }
+                        headers.setOctet(version, PduHeaders.MMS_VERSION);
+                    } catch(InvalidHeaderValueException e) {
+                        log("Set invalid Octet value: " + version +
+                                " into the header filed: " + headerField);
+                        return null;
+                    } catch(RuntimeException e) {
+                        log(headerField + "is not Octet header field!");
+                        return null;
+                    }
+                    break;
+                }
+
+                case PduHeaders.PREVIOUSLY_SENT_BY: {
+                    /* Previously-sent-by-value =
+                     * Value-length Forwarded-count-value Encoded-string-value */
+                    /* parse value-length */
+                    parseValueLength(pduDataStream);
+
+                    /* parse Forwarded-count-value */
+                    try {
+                        parseIntegerValue(pduDataStream);
+                    } catch(RuntimeException e) {
+                        log(headerField + " is not Integer-Value");
+                        return null;
+                    }
+
+                    /* parse Encoded-string-value */
+                    EncodedStringValue previouslySentBy =
+                        parseEncodedStringValue(pduDataStream);
+                    if (null != previouslySentBy) {
+                        try {
+                            if (LOCAL_LOGV) {
+                                Log.v(LOG_TAG, "parseHeaders: PREVIOUSLY_SENT_BY: " + headerField
+                                        + " value: " + previouslySentBy.getString());
+                            }
+                            headers.setEncodedStringValue(previouslySentBy,
+                                    PduHeaders.PREVIOUSLY_SENT_BY);
+                        } catch(NullPointerException e) {
+                            log("null pointer error!");
+                        } catch(RuntimeException e) {
+                            log(headerField + "is not Encoded-String-Value header field!");
+                            return null;
+                        }
+                    }
+                    break;
+                }
+
+                case PduHeaders.PREVIOUSLY_SENT_DATE: {
+                    /* Previously-sent-date-value =
+                     * Value-length Forwarded-count-value Date-value */
+                    /* parse value-length */
+                    parseValueLength(pduDataStream);
+
+                    /* parse Forwarded-count-value */
+                    try {
+                        parseIntegerValue(pduDataStream);
+                    } catch(RuntimeException e) {
+                        log(headerField + " is not Integer-Value");
+                        return null;
+                    }
+
+                    /* Date-value */
+                    try {
+                        long perviouslySentDate = parseLongInteger(pduDataStream);
+                        if (LOCAL_LOGV) {
+                            Log.v(LOG_TAG, "parseHeaders: PREVIOUSLY_SENT_DATE: " + headerField
+                                    + " value: " + perviouslySentDate);
+                        }
+                        headers.setLongInteger(perviouslySentDate,
+                                PduHeaders.PREVIOUSLY_SENT_DATE);
+                    } catch(RuntimeException e) {
+                        log(headerField + "is not Long-Integer header field!");
+                        return null;
+                    }
+                    break;
+                }
+
+                case PduHeaders.MM_FLAGS: {
+                    /* MM-flags-value =
+                     * Value-length
+                     * ( Add-token | Remove-token | Filter-token )
+                     * Encoded-string-value
+                     */
+                    if (LOCAL_LOGV) {
+                        Log.v(LOG_TAG, "parseHeaders: MM_FLAGS: " + headerField
+                                + " NOT REALLY SUPPORTED");
+                    }
+
+                    /* parse Value-length */
+                    parseValueLength(pduDataStream);
+
+                    /* Add-token | Remove-token | Filter-token */
+                    extractByteValue(pduDataStream);
+
+                    /* Encoded-string-value */
+                    parseEncodedStringValue(pduDataStream);
+
+                    /* not store this header filed in "headers",
+                     * because now PduHeaders doesn't support it */
+                    break;
+                }
+
+                /* Value-length
+                 * (Message-total-token | Size-total-token) Integer-Value */
+                case PduHeaders.MBOX_TOTALS:
+                case PduHeaders.MBOX_QUOTAS:
+                {
+                    if (LOCAL_LOGV) {
+                        Log.v(LOG_TAG, "parseHeaders: MBOX_TOTALS: " + headerField);
+                    }
+                    /* Value-length */
+                    parseValueLength(pduDataStream);
+
+                    /* Message-total-token | Size-total-token */
+                    extractByteValue(pduDataStream);
+
+                    /*Integer-Value*/
+                    try {
+                        parseIntegerValue(pduDataStream);
+                    } catch(RuntimeException e) {
+                        log(headerField + " is not Integer-Value");
+                        return null;
+                    }
+
+                    /* not store these headers filed in "headers",
+                    because now PduHeaders doesn't support them */
+                    break;
+                }
+
+                case PduHeaders.ELEMENT_DESCRIPTOR: {
+                    if (LOCAL_LOGV) {
+                        Log.v(LOG_TAG, "parseHeaders: ELEMENT_DESCRIPTOR: " + headerField);
+                    }
+                    parseContentType(pduDataStream, null);
+
+                    /* not store this header filed in "headers",
+                    because now PduHeaders doesn't support it */
+                    break;
+                }
+
+                case PduHeaders.CONTENT_TYPE: {
+                    HashMap<Integer, Object> map =
+                        new HashMap<Integer, Object>();
+                    byte[] contentType =
+                        parseContentType(pduDataStream, map);
+
+                    if (null != contentType) {
+                        try {
+                            if (LOCAL_LOGV) {
+                                Log.v(LOG_TAG, "parseHeaders: CONTENT_TYPE: " + headerField +
+                                        contentType.toString());
+                            }
+                            headers.setTextString(contentType, PduHeaders.CONTENT_TYPE);
+                        } catch(NullPointerException e) {
+                            log("null pointer error!");
+                        } catch(RuntimeException e) {
+                            log(headerField + "is not Text-String header field!");
+                            return null;
+                        }
+                    }
+
+                    /* get start parameter */
+                    mStartParam = (byte[]) map.get(PduPart.P_START);
+
+                    /* get charset parameter */
+                    mTypeParam= (byte[]) map.get(PduPart.P_TYPE);
+
+                    keepParsing = false;
+                    break;
+                }
+
+                case PduHeaders.CONTENT:
+                case PduHeaders.ADDITIONAL_HEADERS:
+                case PduHeaders.ATTRIBUTES:
+                default: {
+                    if (LOCAL_LOGV) {
+                        Log.v(LOG_TAG, "parseHeaders: Unknown header: " + headerField);
+                    }
+                    log("Unknown header");
+                }
+            }
+        }
+
+        return headers;
+    }
+
+    /**
+     * Parse pdu parts.
+     *
+     * @param pduDataStream pdu data input stream
+     * @return parts in PduBody structure
+     */
+    protected PduBody parseParts(ByteArrayInputStream pduDataStream) {
+        if (pduDataStream == null) {
+            return null;
+        }
+
+        int count = parseUnsignedInt(pduDataStream); // get the number of parts
+        PduBody body = new PduBody();
+
+        for (int i = 0 ; i < count ; i++) {
+            int headerLength = parseUnsignedInt(pduDataStream);
+            int dataLength = parseUnsignedInt(pduDataStream);
+            PduPart part = new PduPart();
+            int startPos = pduDataStream.available();
+            if (startPos <= 0) {
+                // Invalid part.
+                return null;
+            }
+
+            /* parse part's content-type */
+            HashMap<Integer, Object> map = new HashMap<Integer, Object>();
+            byte[] contentType = parseContentType(pduDataStream, map);
+            if (null != contentType) {
+                part.setContentType(contentType);
+            } else {
+                part.setContentType((PduContentTypes.contentTypes[0]).getBytes()); //"*/*"
+            }
+
+            /* get name parameter */
+            byte[] name = (byte[]) map.get(PduPart.P_NAME);
+            if (null != name) {
+                part.setName(name);
+            }
+
+            /* get charset parameter */
+            Integer charset = (Integer) map.get(PduPart.P_CHARSET);
+            if (null != charset) {
+                part.setCharset(charset);
+            }
+
+            /* parse part's headers */
+            int endPos = pduDataStream.available();
+            int partHeaderLen = headerLength - (startPos - endPos);
+            if (partHeaderLen > 0) {
+                if (false == parsePartHeaders(pduDataStream, part, partHeaderLen)) {
+                    // Parse part header faild.
+                    return null;
+                }
+            } else if (partHeaderLen < 0) {
+                // Invalid length of content-type.
+                return null;
+            }
+
+            /* FIXME: check content-id, name, filename and content location,
+             * if not set anyone of them, generate a default content-location
+             */
+            if ((null == part.getContentLocation())
+                    && (null == part.getName())
+                    && (null == part.getFilename())
+                    && (null == part.getContentId())) {
+                part.setContentLocation(Long.toOctalString(
+                        System.currentTimeMillis()).getBytes());
+            }
+
+            /* get part's data */
+            if (dataLength > 0) {
+                byte[] partData = new byte[dataLength];
+                String partContentType = new String(part.getContentType());
+                pduDataStream.read(partData, 0, dataLength);
+                if (partContentType.equalsIgnoreCase(ContentType.MULTIPART_ALTERNATIVE)) {
+                    // parse "multipart/vnd.wap.multipart.alternative".
+                    PduBody childBody = parseParts(new ByteArrayInputStream(partData));
+                    // take the first part of children.
+                    part = childBody.getPart(0);
+                } else {
+                    // Check Content-Transfer-Encoding.
+                    byte[] partDataEncoding = part.getContentTransferEncoding();
+                    if (null != partDataEncoding) {
+                        String encoding = new String(partDataEncoding);
+                        if (encoding.equalsIgnoreCase(PduPart.P_BASE64)) {
+                            // Decode "base64" into "binary".
+                            partData = Base64.decodeBase64(partData);
+                        } else if (encoding.equalsIgnoreCase(PduPart.P_QUOTED_PRINTABLE)) {
+                            // Decode "quoted-printable" into "binary".
+                            partData = QuotedPrintable.decodeQuotedPrintable(partData);
+                        } else {
+                            // "binary" is the default encoding.
+                        }
+                    }
+                    if (null == partData) {
+                        log("Decode part data error!");
+                        return null;
+                    }
+                    part.setData(partData);
+                }
+            }
+
+            /* add this part to body */
+            if (THE_FIRST_PART == checkPartPosition(part)) {
+                /* this is the first part */
+                body.addPart(0, part);
+            } else {
+                /* add the part to the end */
+                body.addPart(part);
+            }
+        }
+
+        return body;
+    }
+
+    /**
+     * Log status.
+     *
+     * @param text log information
+     */
+    @UnsupportedAppUsage
+    private static void log(String text) {
+        if (LOCAL_LOGV) {
+            Log.v(LOG_TAG, text);
+        }
+    }
+
+    /**
+     * Parse unsigned integer.
+     *
+     * @param pduDataStream pdu data input stream
+     * @return the integer, -1 when failed
+     */
+    @UnsupportedAppUsage
+    protected static int parseUnsignedInt(ByteArrayInputStream pduDataStream) {
+        /**
+         * From wap-230-wsp-20010705-a.pdf
+         * The maximum size of a uintvar is 32 bits.
+         * So it will be encoded in no more than 5 octets.
+         */
+        assert(null != pduDataStream);
+        int result = 0;
+        int temp = pduDataStream.read();
+        if (temp == -1) {
+            return temp;
+        }
+
+        while((temp & 0x80) != 0) {
+            result = result << 7;
+            result |= temp & 0x7F;
+            temp = pduDataStream.read();
+            if (temp == -1) {
+                return temp;
+            }
+        }
+
+        result = result << 7;
+        result |= temp & 0x7F;
+
+        return result;
+    }
+
+    /**
+     * Parse value length.
+     *
+     * @param pduDataStream pdu data input stream
+     * @return the integer
+     */
+    @UnsupportedAppUsage
+    protected static int parseValueLength(ByteArrayInputStream pduDataStream) {
+        /**
+         * From wap-230-wsp-20010705-a.pdf
+         * Value-length = Short-length | (Length-quote Length)
+         * Short-length = <Any octet 0-30>
+         * Length-quote = <Octet 31>
+         * Length = Uintvar-integer
+         * Uintvar-integer = 1*5 OCTET
+         */
+        assert(null != pduDataStream);
+        int temp = pduDataStream.read();
+        assert(-1 != temp);
+        int first = temp & 0xFF;
+
+        if (first <= SHORT_LENGTH_MAX) {
+            return first;
+        } else if (first == LENGTH_QUOTE) {
+            return parseUnsignedInt(pduDataStream);
+        }
+
+        throw new RuntimeException ("Value length > LENGTH_QUOTE!");
+    }
+
+    /**
+     * Parse encoded string value.
+     *
+     * @param pduDataStream pdu data input stream
+     * @return the EncodedStringValue
+     */
+    protected static EncodedStringValue parseEncodedStringValue(ByteArrayInputStream pduDataStream){
+        /**
+         * From OMA-TS-MMS-ENC-V1_3-20050927-C.pdf
+         * Encoded-string-value = Text-string | Value-length Char-set Text-string
+         */
+        assert(null != pduDataStream);
+        pduDataStream.mark(1);
+        EncodedStringValue returnValue = null;
+        int charset = 0;
+        int temp = pduDataStream.read();
+        assert(-1 != temp);
+        int first = temp & 0xFF;
+        if (first == 0) {
+            return new EncodedStringValue("");
+        }
+
+        pduDataStream.reset();
+        if (first < TEXT_MIN) {
+            parseValueLength(pduDataStream);
+
+            charset = parseShortInteger(pduDataStream); //get the "Charset"
+        }
+
+        byte[] textString = parseWapString(pduDataStream, TYPE_TEXT_STRING);
+
+        try {
+            if (0 != charset) {
+                returnValue = new EncodedStringValue(charset, textString);
+            } else {
+                returnValue = new EncodedStringValue(textString);
+            }
+        } catch(Exception e) {
+            return null;
+        }
+
+        return returnValue;
+    }
+
+    /**
+     * Parse Text-String or Quoted-String.
+     *
+     * @param pduDataStream pdu data input stream
+     * @param stringType TYPE_TEXT_STRING or TYPE_QUOTED_STRING
+     * @return the string without End-of-string in byte array
+     */
+    @UnsupportedAppUsage
+    protected static byte[] parseWapString(ByteArrayInputStream pduDataStream,
+            int stringType) {
+        assert(null != pduDataStream);
+        /**
+         * From wap-230-wsp-20010705-a.pdf
+         * Text-string = [Quote] *TEXT End-of-string
+         * If the first character in the TEXT is in the range of 128-255,
+         * a Quote character must precede it.
+         * Otherwise the Quote character must be omitted.
+         * The Quote is not part of the contents.
+         * Quote = <Octet 127>
+         * End-of-string = <Octet 0>
+         *
+         * Quoted-string = <Octet 34> *TEXT End-of-string
+         *
+         * Token-text = Token End-of-string
+         */
+
+        // Mark supposed beginning of Text-string
+        // We will have to mark again if first char is QUOTE or QUOTED_STRING_FLAG
+        pduDataStream.mark(1);
+
+        // Check first char
+        int temp = pduDataStream.read();
+        assert(-1 != temp);
+        if ((TYPE_QUOTED_STRING == stringType) &&
+                (QUOTED_STRING_FLAG == temp)) {
+            // Mark again if QUOTED_STRING_FLAG and ignore it
+            pduDataStream.mark(1);
+        } else if ((TYPE_TEXT_STRING == stringType) &&
+                (QUOTE == temp)) {
+            // Mark again if QUOTE and ignore it
+            pduDataStream.mark(1);
+        } else {
+            // Otherwise go back to origin
+            pduDataStream.reset();
+        }
+
+        // We are now definitely at the beginning of string
+        /**
+         * Return *TOKEN or *TEXT (Text-String without QUOTE,
+         * Quoted-String without QUOTED_STRING_FLAG and without End-of-string)
+         */
+        return getWapString(pduDataStream, stringType);
+    }
+
+    /**
+     * Check TOKEN data defined in RFC2616.
+     * @param ch checking data
+     * @return true when ch is TOKEN, false when ch is not TOKEN
+     */
+    protected static boolean isTokenCharacter(int ch) {
+        /**
+         * Token      = 1*<any CHAR except CTLs or separators>
+         * separators = "("(40) | ")"(41) | "<"(60) | ">"(62) | "@"(64)
+         *            | ","(44) | ";"(59) | ":"(58) | "\"(92) | <">(34)
+         *            | "/"(47) | "["(91) | "]"(93) | "?"(63) | "="(61)
+         *            | "{"(123) | "}"(125) | SP(32) | HT(9)
+         * CHAR       = <any US-ASCII character (octets 0 - 127)>
+         * CTL        = <any US-ASCII control character
+         *            (octets 0 - 31) and DEL (127)>
+         * SP         = <US-ASCII SP, space (32)>
+         * HT         = <US-ASCII HT, horizontal-tab (9)>
+         */
+        if((ch < 33) || (ch > 126)) {
+            return false;
+        }
+
+        switch(ch) {
+            case '"': /* '"' */
+            case '(': /* '(' */
+            case ')': /* ')' */
+            case ',': /* ',' */
+            case '/': /* '/' */
+            case ':': /* ':' */
+            case ';': /* ';' */
+            case '<': /* '<' */
+            case '=': /* '=' */
+            case '>': /* '>' */
+            case '?': /* '?' */
+            case '@': /* '@' */
+            case '[': /* '[' */
+            case '\\': /* '\' */
+            case ']': /* ']' */
+            case '{': /* '{' */
+            case '}': /* '}' */
+                return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Check TEXT data defined in RFC2616.
+     * @param ch checking data
+     * @return true when ch is TEXT, false when ch is not TEXT
+     */
+    protected static boolean isText(int ch) {
+        /**
+         * TEXT = <any OCTET except CTLs,
+         *      but including LWS>
+         * CTL  = <any US-ASCII control character
+         *      (octets 0 - 31) and DEL (127)>
+         * LWS  = [CRLF] 1*( SP | HT )
+         * CRLF = CR LF
+         * CR   = <US-ASCII CR, carriage return (13)>
+         * LF   = <US-ASCII LF, linefeed (10)>
+         */
+        if(((ch >= 32) && (ch <= 126)) || ((ch >= 128) && (ch <= 255))) {
+            return true;
+        }
+
+        switch(ch) {
+            case '\t': /* '\t' */
+            case '\n': /* '\n' */
+            case '\r': /* '\r' */
+                return true;
+        }
+
+        return false;
+    }
+
+    protected static byte[] getWapString(ByteArrayInputStream pduDataStream,
+            int stringType) {
+        assert(null != pduDataStream);
+        ByteArrayOutputStream out = new ByteArrayOutputStream();
+        int temp = pduDataStream.read();
+        assert(-1 != temp);
+        while((-1 != temp) && ('\0' != temp)) {
+            // check each of the character
+            if (stringType == TYPE_TOKEN_STRING) {
+                if (isTokenCharacter(temp)) {
+                    out.write(temp);
+                }
+            } else {
+                if (isText(temp)) {
+                    out.write(temp);
+                }
+            }
+
+            temp = pduDataStream.read();
+            assert(-1 != temp);
+        }
+
+        if (out.size() > 0) {
+            return out.toByteArray();
+        }
+
+        return null;
+    }
+
+    /**
+     * Extract a byte value from the input stream.
+     *
+     * @param pduDataStream pdu data input stream
+     * @return the byte
+     */
+    protected static int extractByteValue(ByteArrayInputStream pduDataStream) {
+        assert(null != pduDataStream);
+        int temp = pduDataStream.read();
+        assert(-1 != temp);
+        return temp & 0xFF;
+    }
+
+    /**
+     * Parse Short-Integer.
+     *
+     * @param pduDataStream pdu data input stream
+     * @return the byte
+     */
+    @UnsupportedAppUsage
+    protected static int parseShortInteger(ByteArrayInputStream pduDataStream) {
+        /**
+         * From wap-230-wsp-20010705-a.pdf
+         * Short-integer = OCTET
+         * Integers in range 0-127 shall be encoded as a one
+         * octet value with the most significant bit set to one (1xxx xxxx)
+         * and with the value in the remaining least significant bits.
+         */
+        assert(null != pduDataStream);
+        int temp = pduDataStream.read();
+        assert(-1 != temp);
+        return temp & 0x7F;
+    }
+
+    /**
+     * Parse Long-Integer.
+     *
+     * @param pduDataStream pdu data input stream
+     * @return long integer
+     */
+    protected static long parseLongInteger(ByteArrayInputStream pduDataStream) {
+        /**
+         * From wap-230-wsp-20010705-a.pdf
+         * Long-integer = Short-length Multi-octet-integer
+         * The Short-length indicates the length of the Multi-octet-integer
+         * Multi-octet-integer = 1*30 OCTET
+         * The content octets shall be an unsigned integer value
+         * with the most significant octet encoded first (big-endian representation).
+         * The minimum number of octets must be used to encode the value.
+         * Short-length = <Any octet 0-30>
+         */
+        assert(null != pduDataStream);
+        int temp = pduDataStream.read();
+        assert(-1 != temp);
+        int count = temp & 0xFF;
+
+        if (count > LONG_INTEGER_LENGTH_MAX) {
+            throw new RuntimeException("Octet count greater than 8 and I can't represent that!");
+        }
+
+        long result = 0;
+
+        for (int i = 0 ; i < count ; i++) {
+            temp = pduDataStream.read();
+            assert(-1 != temp);
+            result <<= 8;
+            result += (temp & 0xFF);
+        }
+
+        return result;
+    }
+
+    /**
+     * Parse Integer-Value.
+     *
+     * @param pduDataStream pdu data input stream
+     * @return long integer
+     */
+    protected static long parseIntegerValue(ByteArrayInputStream pduDataStream) {
+        /**
+         * From wap-230-wsp-20010705-a.pdf
+         * Integer-Value = Short-integer | Long-integer
+         */
+        assert(null != pduDataStream);
+        pduDataStream.mark(1);
+        int temp = pduDataStream.read();
+        assert(-1 != temp);
+        pduDataStream.reset();
+        if (temp > SHORT_INTEGER_MAX) {
+            return parseShortInteger(pduDataStream);
+        } else {
+            return parseLongInteger(pduDataStream);
+        }
+    }
+
+    /**
+     * To skip length of the wap value.
+     *
+     * @param pduDataStream pdu data input stream
+     * @param length area size
+     * @return the values in this area
+     */
+    protected static int skipWapValue(ByteArrayInputStream pduDataStream, int length) {
+        assert(null != pduDataStream);
+        byte[] area = new byte[length];
+        int readLen = pduDataStream.read(area, 0, length);
+        if (readLen < length) { //The actually read length is lower than the length
+            return -1;
+        } else {
+            return readLen;
+        }
+    }
+
+    /**
+     * Parse content type parameters. For now we just support
+     * four parameters used in mms: "type", "start", "name", "charset".
+     *
+     * @param pduDataStream pdu data input stream
+     * @param map to store parameters of Content-Type field
+     * @param length length of all the parameters
+     */
+    protected static void parseContentTypeParams(ByteArrayInputStream pduDataStream,
+            HashMap<Integer, Object> map, Integer length) {
+        /**
+         * From wap-230-wsp-20010705-a.pdf
+         * Parameter = Typed-parameter | Untyped-parameter
+         * Typed-parameter = Well-known-parameter-token Typed-value
+         * the actual expected type of the value is implied by the well-known parameter
+         * Well-known-parameter-token = Integer-value
+         * the code values used for parameters are specified in the Assigned Numbers appendix
+         * Typed-value = Compact-value | Text-value
+         * In addition to the expected type, there may be no value.
+         * If the value cannot be encoded using the expected type, it shall be encoded as text.
+         * Compact-value = Integer-value |
+         * Date-value | Delta-seconds-value | Q-value | Version-value |
+         * Uri-value
+         * Untyped-parameter = Token-text Untyped-value
+         * the type of the value is unknown, but it shall be encoded as an integer,
+         * if that is possible.
+         * Untyped-value = Integer-value | Text-value
+         */
+        assert(null != pduDataStream);
+        assert(length > 0);
+
+        int startPos = pduDataStream.available();
+        int tempPos = 0;
+        int lastLen = length;
+        while(0 < lastLen) {
+            int param = pduDataStream.read();
+            assert(-1 != param);
+            lastLen--;
+
+            switch (param) {
+                /**
+                 * From rfc2387, chapter 3.1
+                 * The type parameter must be specified and its value is the MIME media
+                 * type of the "root" body part. It permits a MIME user agent to
+                 * determine the content-type without reference to the enclosed body
+                 * part. If the value of the type parameter and the root body part's
+                 * content-type differ then the User Agent's behavior is undefined.
+                 *
+                 * From wap-230-wsp-20010705-a.pdf
+                 * type = Constrained-encoding
+                 * Constrained-encoding = Extension-Media | Short-integer
+                 * Extension-media = *TEXT End-of-string
+                 */
+                case PduPart.P_TYPE:
+                case PduPart.P_CT_MR_TYPE:
+                    pduDataStream.mark(1);
+                    int first = extractByteValue(pduDataStream);
+                    pduDataStream.reset();
+                    if (first > TEXT_MAX) {
+                        // Short-integer (well-known type)
+                        int index = parseShortInteger(pduDataStream);
+
+                        if (index < PduContentTypes.contentTypes.length) {
+                            byte[] type = (PduContentTypes.contentTypes[index]).getBytes();
+                            map.put(PduPart.P_TYPE, type);
+                        } else {
+                            //not support this type, ignore it.
+                        }
+                    } else {
+                        // Text-String (extension-media)
+                        byte[] type = parseWapString(pduDataStream, TYPE_TEXT_STRING);
+                        if ((null != type) && (null != map)) {
+                            map.put(PduPart.P_TYPE, type);
+                        }
+                    }
+
+                    tempPos = pduDataStream.available();
+                    lastLen = length - (startPos - tempPos);
+                    break;
+
+                    /**
+                     * From oma-ts-mms-conf-v1_3.pdf, chapter 10.2.3.
+                     * Start Parameter Referring to Presentation
+                     *
+                     * From rfc2387, chapter 3.2
+                     * The start parameter, if given, is the content-ID of the compound
+                     * object's "root". If not present the "root" is the first body part in
+                     * the Multipart/Related entity. The "root" is the element the
+                     * applications processes first.
+                     *
+                     * From wap-230-wsp-20010705-a.pdf
+                     * start = Text-String
+                     */
+                case PduPart.P_START:
+                case PduPart.P_DEP_START:
+                    byte[] start = parseWapString(pduDataStream, TYPE_TEXT_STRING);
+                    if ((null != start) && (null != map)) {
+                        map.put(PduPart.P_START, start);
+                    }
+
+                    tempPos = pduDataStream.available();
+                    lastLen = length - (startPos - tempPos);
+                    break;
+
+                    /**
+                     * From oma-ts-mms-conf-v1_3.pdf
+                     * In creation, the character set SHALL be either us-ascii
+                     * (IANA MIBenum 3) or utf-8 (IANA MIBenum 106)[Unicode].
+                     * In retrieval, both us-ascii and utf-8 SHALL be supported.
+                     *
+                     * From wap-230-wsp-20010705-a.pdf
+                     * charset = Well-known-charset|Text-String
+                     * Well-known-charset = Any-charset | Integer-value
+                     * Both are encoded using values from Character Set
+                     * Assignments table in Assigned Numbers
+                     * Any-charset = <Octet 128>
+                     * Equivalent to the special RFC2616 charset value "*"
+                     */
+                case PduPart.P_CHARSET:
+                    pduDataStream.mark(1);
+                    int firstValue = extractByteValue(pduDataStream);
+                    pduDataStream.reset();
+                    //Check first char
+                    if (((firstValue > TEXT_MIN) && (firstValue < TEXT_MAX)) ||
+                            (END_STRING_FLAG == firstValue)) {
+                        //Text-String (extension-charset)
+                        byte[] charsetStr = parseWapString(pduDataStream, TYPE_TEXT_STRING);
+                        try {
+                            int charsetInt = CharacterSets.getMibEnumValue(
+                                    new String(charsetStr));
+                            map.put(PduPart.P_CHARSET, charsetInt);
+                        } catch (UnsupportedEncodingException e) {
+                            // Not a well-known charset, use "*".
+                            Log.e(LOG_TAG, Arrays.toString(charsetStr), e);
+                            map.put(PduPart.P_CHARSET, CharacterSets.ANY_CHARSET);
+                        }
+                    } else {
+                        //Well-known-charset
+                        int charset = (int) parseIntegerValue(pduDataStream);
+                        if (map != null) {
+                            map.put(PduPart.P_CHARSET, charset);
+                        }
+                    }
+
+                    tempPos = pduDataStream.available();
+                    lastLen = length - (startPos - tempPos);
+                    break;
+
+                    /**
+                     * From oma-ts-mms-conf-v1_3.pdf
+                     * A name for multipart object SHALL be encoded using name-parameter
+                     * for Content-Type header in WSP multipart headers.
+                     *
+                     * From wap-230-wsp-20010705-a.pdf
+                     * name = Text-String
+                     */
+                case PduPart.P_DEP_NAME:
+                case PduPart.P_NAME:
+                    byte[] name = parseWapString(pduDataStream, TYPE_TEXT_STRING);
+                    if ((null != name) && (null != map)) {
+                        map.put(PduPart.P_NAME, name);
+                    }
+
+                    tempPos = pduDataStream.available();
+                    lastLen = length - (startPos - tempPos);
+                    break;
+                default:
+                    if (LOCAL_LOGV) {
+                        Log.v(LOG_TAG, "Not supported Content-Type parameter");
+                    }
+                if (-1 == skipWapValue(pduDataStream, lastLen)) {
+                    Log.e(LOG_TAG, "Corrupt Content-Type");
+                } else {
+                    lastLen = 0;
+                }
+                break;
+            }
+        }
+
+        if (0 != lastLen) {
+            Log.e(LOG_TAG, "Corrupt Content-Type");
+        }
+    }
+
+    /**
+     * Parse content type.
+     *
+     * @param pduDataStream pdu data input stream
+     * @param map to store parameters in Content-Type header field
+     * @return Content-Type value
+     */
+    @UnsupportedAppUsage
+    protected static byte[] parseContentType(ByteArrayInputStream pduDataStream,
+            HashMap<Integer, Object> map) {
+        /**
+         * From wap-230-wsp-20010705-a.pdf
+         * Content-type-value = Constrained-media | Content-general-form
+         * Content-general-form = Value-length Media-type
+         * Media-type = (Well-known-media | Extension-Media) *(Parameter)
+         */
+        assert(null != pduDataStream);
+
+        byte[] contentType = null;
+        pduDataStream.mark(1);
+        int temp = pduDataStream.read();
+        assert(-1 != temp);
+        pduDataStream.reset();
+
+        int cur = (temp & 0xFF);
+
+        if (cur < TEXT_MIN) {
+            int length = parseValueLength(pduDataStream);
+            int startPos = pduDataStream.available();
+            pduDataStream.mark(1);
+            temp = pduDataStream.read();
+            assert(-1 != temp);
+            pduDataStream.reset();
+            int first = (temp & 0xFF);
+
+            if ((first >= TEXT_MIN) && (first <= TEXT_MAX)) {
+                contentType = parseWapString(pduDataStream, TYPE_TEXT_STRING);
+            } else if (first > TEXT_MAX) {
+                int index = parseShortInteger(pduDataStream);
+
+                if (index < PduContentTypes.contentTypes.length) { //well-known type
+                    contentType = (PduContentTypes.contentTypes[index]).getBytes();
+                } else {
+                    pduDataStream.reset();
+                    contentType = parseWapString(pduDataStream, TYPE_TEXT_STRING);
+                }
+            } else {
+                Log.e(LOG_TAG, "Corrupt content-type");
+                return (PduContentTypes.contentTypes[0]).getBytes(); //"*/*"
+            }
+
+            int endPos = pduDataStream.available();
+            int parameterLen = length - (startPos - endPos);
+            if (parameterLen > 0) {//have parameters
+                parseContentTypeParams(pduDataStream, map, parameterLen);
+            }
+
+            if (parameterLen < 0) {
+                Log.e(LOG_TAG, "Corrupt MMS message");
+                return (PduContentTypes.contentTypes[0]).getBytes(); //"*/*"
+            }
+        } else if (cur <= TEXT_MAX) {
+            contentType = parseWapString(pduDataStream, TYPE_TEXT_STRING);
+        } else {
+            contentType =
+                (PduContentTypes.contentTypes[parseShortInteger(pduDataStream)]).getBytes();
+        }
+
+        return contentType;
+    }
+
+    /**
+     * Parse part's headers.
+     *
+     * @param pduDataStream pdu data input stream
+     * @param part to store the header informations of the part
+     * @param length length of the headers
+     * @return true if parse successfully, false otherwise
+     */
+    @UnsupportedAppUsage
+    protected boolean parsePartHeaders(ByteArrayInputStream pduDataStream,
+            PduPart part, int length) {
+        assert(null != pduDataStream);
+        assert(null != part);
+        assert(length > 0);
+
+        /**
+         * From oma-ts-mms-conf-v1_3.pdf, chapter 10.2.
+         * A name for multipart object SHALL be encoded using name-parameter
+         * for Content-Type header in WSP multipart headers.
+         * In decoding, name-parameter of Content-Type SHALL be used if available.
+         * If name-parameter of Content-Type is not available,
+         * filename parameter of Content-Disposition header SHALL be used if available.
+         * If neither name-parameter of Content-Type header nor filename parameter
+         * of Content-Disposition header is available,
+         * Content-Location header SHALL be used if available.
+         *
+         * Within SMIL part the reference to the media object parts SHALL use
+         * either Content-ID or Content-Location mechanism [RFC2557]
+         * and the corresponding WSP part headers in media object parts
+         * contain the corresponding definitions.
+         */
+        int startPos = pduDataStream.available();
+        int tempPos = 0;
+        int lastLen = length;
+        while(0 < lastLen) {
+            int header = pduDataStream.read();
+            assert(-1 != header);
+            lastLen--;
+
+            if (header > TEXT_MAX) {
+                // Number assigned headers.
+                switch (header) {
+                    case PduPart.P_CONTENT_LOCATION:
+                        /**
+                         * From wap-230-wsp-20010705-a.pdf, chapter 8.4.2.21
+                         * Content-location-value = Uri-value
+                         */
+                        byte[] contentLocation = parseWapString(pduDataStream, TYPE_TEXT_STRING);
+                        if (null != contentLocation) {
+                            part.setContentLocation(contentLocation);
+                        }
+
+                        tempPos = pduDataStream.available();
+                        lastLen = length - (startPos - tempPos);
+                        break;
+                    case PduPart.P_CONTENT_ID:
+                        /**
+                         * From wap-230-wsp-20010705-a.pdf, chapter 8.4.2.21
+                         * Content-ID-value = Quoted-string
+                         */
+                        byte[] contentId = parseWapString(pduDataStream, TYPE_QUOTED_STRING);
+                        if (null != contentId) {
+                            part.setContentId(contentId);
+                        }
+
+                        tempPos = pduDataStream.available();
+                        lastLen = length - (startPos - tempPos);
+                        break;
+                    case PduPart.P_DEP_CONTENT_DISPOSITION:
+                    case PduPart.P_CONTENT_DISPOSITION:
+                        /**
+                         * From wap-230-wsp-20010705-a.pdf, chapter 8.4.2.21
+                         * Content-disposition-value = Value-length Disposition *(Parameter)
+                         * Disposition = Form-data | Attachment | Inline | Token-text
+                         * Form-data = <Octet 128>
+                         * Attachment = <Octet 129>
+                         * Inline = <Octet 130>
+                         */
+
+                        /*
+                         * some carrier mmsc servers do not support content_disposition
+                         * field correctly
+                         */
+                        if (mParseContentDisposition) {
+                            int len = parseValueLength(pduDataStream);
+                            pduDataStream.mark(1);
+                            int thisStartPos = pduDataStream.available();
+                            int thisEndPos = 0;
+                            int value = pduDataStream.read();
+
+                            if (value == PduPart.P_DISPOSITION_FROM_DATA ) {
+                                part.setContentDisposition(PduPart.DISPOSITION_FROM_DATA);
+                            } else if (value == PduPart.P_DISPOSITION_ATTACHMENT) {
+                                part.setContentDisposition(PduPart.DISPOSITION_ATTACHMENT);
+                            } else if (value == PduPart.P_DISPOSITION_INLINE) {
+                                part.setContentDisposition(PduPart.DISPOSITION_INLINE);
+                            } else {
+                                pduDataStream.reset();
+                                /* Token-text */
+                                part.setContentDisposition(parseWapString(pduDataStream
+                                        , TYPE_TEXT_STRING));
+                            }
+
+                            /* get filename parameter and skip other parameters */
+                            thisEndPos = pduDataStream.available();
+                            if (thisStartPos - thisEndPos < len) {
+                                value = pduDataStream.read();
+                                if (value == PduPart.P_FILENAME) { //filename is text-string
+                                    part.setFilename(parseWapString(pduDataStream
+                                            , TYPE_TEXT_STRING));
+                                }
+
+                                /* skip other parameters */
+                                thisEndPos = pduDataStream.available();
+                                if (thisStartPos - thisEndPos < len) {
+                                    int last = len - (thisStartPos - thisEndPos);
+                                    byte[] temp = new byte[last];
+                                    pduDataStream.read(temp, 0, last);
+                                }
+                            }
+
+                            tempPos = pduDataStream.available();
+                            lastLen = length - (startPos - tempPos);
+                        }
+                        break;
+                    default:
+                        if (LOCAL_LOGV) {
+                            Log.v(LOG_TAG, "Not supported Part headers: " + header);
+                        }
+                    if (-1 == skipWapValue(pduDataStream, lastLen)) {
+                        Log.e(LOG_TAG, "Corrupt Part headers");
+                        return false;
+                    }
+                    lastLen = 0;
+                    break;
+                }
+            } else if ((header >= TEXT_MIN) && (header <= TEXT_MAX)) {
+                // Not assigned header.
+                byte[] tempHeader = parseWapString(pduDataStream, TYPE_TEXT_STRING);
+                byte[] tempValue = parseWapString(pduDataStream, TYPE_TEXT_STRING);
+
+                // Check the header whether it is "Content-Transfer-Encoding".
+                if (true ==
+                    PduPart.CONTENT_TRANSFER_ENCODING.equalsIgnoreCase(new String(tempHeader))) {
+                    part.setContentTransferEncoding(tempValue);
+                }
+
+                tempPos = pduDataStream.available();
+                lastLen = length - (startPos - tempPos);
+            } else {
+                if (LOCAL_LOGV) {
+                    Log.v(LOG_TAG, "Not supported Part headers: " + header);
+                }
+                // Skip all headers of this part.
+                if (-1 == skipWapValue(pduDataStream, lastLen)) {
+                    Log.e(LOG_TAG, "Corrupt Part headers");
+                    return false;
+                }
+                lastLen = 0;
+            }
+        }
+
+        if (0 != lastLen) {
+            Log.e(LOG_TAG, "Corrupt Part headers");
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Check the position of a specified part.
+     *
+     * @param part the part to be checked
+     * @return part position, THE_FIRST_PART when it's the
+     * first one, THE_LAST_PART when it's the last one.
+     */
+    @UnsupportedAppUsage
+    private static int checkPartPosition(PduPart part) {
+        assert(null != part);
+        if ((null == mTypeParam) &&
+                (null == mStartParam)) {
+            return THE_LAST_PART;
+        }
+
+        /* check part's content-id */
+        if (null != mStartParam) {
+            byte[] contentId = part.getContentId();
+            if (null != contentId) {
+                if (true == Arrays.equals(mStartParam, contentId)) {
+                    return THE_FIRST_PART;
+                }
+            }
+            // This is not the first part, so append to end (keeping the original order)
+            // Check b/19607294 for details of this change
+            return THE_LAST_PART;
+        }
+
+        /* check part's content-type */
+        if (null != mTypeParam) {
+            byte[] contentType = part.getContentType();
+            if (null != contentType) {
+                if (true == Arrays.equals(mTypeParam, contentType)) {
+                    return THE_FIRST_PART;
+                }
+            }
+        }
+
+        return THE_LAST_PART;
+    }
+
+    /**
+     * Check mandatory headers of a pdu.
+     *
+     * @param headers pdu headers
+     * @return true if the pdu has all of the mandatory headers, false otherwise.
+     */
+    protected static boolean checkMandatoryHeader(PduHeaders headers) {
+        if (null == headers) {
+            return false;
+        }
+
+        /* get message type */
+        int messageType = headers.getOctet(PduHeaders.MESSAGE_TYPE);
+
+        /* check Mms-Version field */
+        int mmsVersion = headers.getOctet(PduHeaders.MMS_VERSION);
+        if (0 == mmsVersion) {
+            // Every message should have Mms-Version field.
+            return false;
+        }
+
+        /* check mandatory header fields */
+        switch (messageType) {
+            case PduHeaders.MESSAGE_TYPE_SEND_REQ:
+                // Content-Type field.
+                byte[] srContentType = headers.getTextString(PduHeaders.CONTENT_TYPE);
+                if (null == srContentType) {
+                    return false;
+                }
+
+                // From field.
+                EncodedStringValue srFrom = headers.getEncodedStringValue(PduHeaders.FROM);
+                if (null == srFrom) {
+                    return false;
+                }
+
+                // Transaction-Id field.
+                byte[] srTransactionId = headers.getTextString(PduHeaders.TRANSACTION_ID);
+                if (null == srTransactionId) {
+                    return false;
+                }
+
+                break;
+            case PduHeaders.MESSAGE_TYPE_SEND_CONF:
+                // Response-Status field.
+                int scResponseStatus = headers.getOctet(PduHeaders.RESPONSE_STATUS);
+                if (0 == scResponseStatus) {
+                    return false;
+                }
+
+                // Transaction-Id field.
+                byte[] scTransactionId = headers.getTextString(PduHeaders.TRANSACTION_ID);
+                if (null == scTransactionId) {
+                    return false;
+                }
+
+                break;
+            case PduHeaders.MESSAGE_TYPE_NOTIFICATION_IND:
+                // Content-Location field.
+                byte[] niContentLocation = headers.getTextString(PduHeaders.CONTENT_LOCATION);
+                if (null == niContentLocation) {
+                    return false;
+                }
+
+                // Expiry field.
+                long niExpiry = headers.getLongInteger(PduHeaders.EXPIRY);
+                if (-1 == niExpiry) {
+                    return false;
+                }
+
+                // Message-Class field.
+                byte[] niMessageClass = headers.getTextString(PduHeaders.MESSAGE_CLASS);
+                if (null == niMessageClass) {
+                    return false;
+                }
+
+                // Message-Size field.
+                long niMessageSize = headers.getLongInteger(PduHeaders.MESSAGE_SIZE);
+                if (-1 == niMessageSize) {
+                    return false;
+                }
+
+                // Transaction-Id field.
+                byte[] niTransactionId = headers.getTextString(PduHeaders.TRANSACTION_ID);
+                if (null == niTransactionId) {
+                    return false;
+                }
+
+                break;
+            case PduHeaders.MESSAGE_TYPE_NOTIFYRESP_IND:
+                // Status field.
+                int nriStatus = headers.getOctet(PduHeaders.STATUS);
+                if (0 == nriStatus) {
+                    return false;
+                }
+
+                // Transaction-Id field.
+                byte[] nriTransactionId = headers.getTextString(PduHeaders.TRANSACTION_ID);
+                if (null == nriTransactionId) {
+                    return false;
+                }
+
+                break;
+            case PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF:
+                // Content-Type field.
+                byte[] rcContentType = headers.getTextString(PduHeaders.CONTENT_TYPE);
+                if (null == rcContentType) {
+                    return false;
+                }
+
+                // Date field.
+                long rcDate = headers.getLongInteger(PduHeaders.DATE);
+                if (-1 == rcDate) {
+                    return false;
+                }
+
+                break;
+            case PduHeaders.MESSAGE_TYPE_DELIVERY_IND:
+                // Date field.
+                long diDate = headers.getLongInteger(PduHeaders.DATE);
+                if (-1 == diDate) {
+                    return false;
+                }
+
+                // Message-Id field.
+                byte[] diMessageId = headers.getTextString(PduHeaders.MESSAGE_ID);
+                if (null == diMessageId) {
+                    return false;
+                }
+
+                // Status field.
+                int diStatus = headers.getOctet(PduHeaders.STATUS);
+                if (0 == diStatus) {
+                    return false;
+                }
+
+                // To field.
+                EncodedStringValue[] diTo = headers.getEncodedStringValues(PduHeaders.TO);
+                if (null == diTo) {
+                    return false;
+                }
+
+                break;
+            case PduHeaders.MESSAGE_TYPE_ACKNOWLEDGE_IND:
+                // Transaction-Id field.
+                byte[] aiTransactionId = headers.getTextString(PduHeaders.TRANSACTION_ID);
+                if (null == aiTransactionId) {
+                    return false;
+                }
+
+                break;
+            case PduHeaders.MESSAGE_TYPE_READ_ORIG_IND:
+                // Date field.
+                long roDate = headers.getLongInteger(PduHeaders.DATE);
+                if (-1 == roDate) {
+                    return false;
+                }
+
+                // From field.
+                EncodedStringValue roFrom = headers.getEncodedStringValue(PduHeaders.FROM);
+                if (null == roFrom) {
+                    return false;
+                }
+
+                // Message-Id field.
+                byte[] roMessageId = headers.getTextString(PduHeaders.MESSAGE_ID);
+                if (null == roMessageId) {
+                    return false;
+                }
+
+                // Read-Status field.
+                int roReadStatus = headers.getOctet(PduHeaders.READ_STATUS);
+                if (0 == roReadStatus) {
+                    return false;
+                }
+
+                // To field.
+                EncodedStringValue[] roTo = headers.getEncodedStringValues(PduHeaders.TO);
+                if (null == roTo) {
+                    return false;
+                }
+
+                break;
+            case PduHeaders.MESSAGE_TYPE_READ_REC_IND:
+                // From field.
+                EncodedStringValue rrFrom = headers.getEncodedStringValue(PduHeaders.FROM);
+                if (null == rrFrom) {
+                    return false;
+                }
+
+                // Message-Id field.
+                byte[] rrMessageId = headers.getTextString(PduHeaders.MESSAGE_ID);
+                if (null == rrMessageId) {
+                    return false;
+                }
+
+                // Read-Status field.
+                int rrReadStatus = headers.getOctet(PduHeaders.READ_STATUS);
+                if (0 == rrReadStatus) {
+                    return false;
+                }
+
+                // To field.
+                EncodedStringValue[] rrTo = headers.getEncodedStringValues(PduHeaders.TO);
+                if (null == rrTo) {
+                    return false;
+                }
+
+                break;
+            default:
+                // Parser doesn't support this message type in this version.
+                return false;
+        }
+
+        return true;
+    }
+}
diff --git a/telephony/java/com/google/android/mms/pdu/PduPart.java b/telephony/java/com/google/android/mms/pdu/PduPart.java
new file mode 100644
index 0000000..09b7751
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/PduPart.java
@@ -0,0 +1,439 @@
+/*
+ * Copyright (C) 2007-2008 Esmertec AG.
+ * Copyright (C) 2007-2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import android.net.Uri;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * The pdu part.
+ */
+public class PduPart {
+    /**
+     * Well-Known Parameters.
+     */
+    public static final int P_Q                  = 0x80;
+    public static final int P_CHARSET            = 0x81;
+    public static final int P_LEVEL              = 0x82;
+    public static final int P_TYPE               = 0x83;
+    public static final int P_DEP_NAME           = 0x85;
+    public static final int P_DEP_FILENAME       = 0x86;
+    public static final int P_DIFFERENCES        = 0x87;
+    public static final int P_PADDING            = 0x88;
+    // This value of "TYPE" s used with Content-Type: multipart/related
+    public static final int P_CT_MR_TYPE         = 0x89;
+    public static final int P_DEP_START          = 0x8A;
+    public static final int P_DEP_START_INFO     = 0x8B;
+    public static final int P_DEP_COMMENT        = 0x8C;
+    public static final int P_DEP_DOMAIN         = 0x8D;
+    public static final int P_MAX_AGE            = 0x8E;
+    public static final int P_DEP_PATH           = 0x8F;
+    public static final int P_SECURE             = 0x90;
+    public static final int P_SEC                = 0x91;
+    public static final int P_MAC                = 0x92;
+    public static final int P_CREATION_DATE      = 0x93;
+    public static final int P_MODIFICATION_DATE  = 0x94;
+    public static final int P_READ_DATE          = 0x95;
+    public static final int P_SIZE               = 0x96;
+    public static final int P_NAME               = 0x97;
+    public static final int P_FILENAME           = 0x98;
+    public static final int P_START              = 0x99;
+    public static final int P_START_INFO         = 0x9A;
+    public static final int P_COMMENT            = 0x9B;
+    public static final int P_DOMAIN             = 0x9C;
+    public static final int P_PATH               = 0x9D;
+
+    /**
+     *  Header field names.
+     */
+     public static final int P_CONTENT_TYPE       = 0x91;
+     public static final int P_CONTENT_LOCATION   = 0x8E;
+     public static final int P_CONTENT_ID         = 0xC0;
+     public static final int P_DEP_CONTENT_DISPOSITION = 0xAE;
+     public static final int P_CONTENT_DISPOSITION = 0xC5;
+    // The next header is unassigned header, use reserved header(0x48) value.
+     public static final int P_CONTENT_TRANSFER_ENCODING = 0xC8;
+
+     /**
+      * Content=Transfer-Encoding string.
+      */
+     public static final String CONTENT_TRANSFER_ENCODING =
+             "Content-Transfer-Encoding";
+
+     /**
+      * Value of Content-Transfer-Encoding.
+      */
+     public static final String P_BINARY = "binary";
+     public static final String P_7BIT = "7bit";
+     public static final String P_8BIT = "8bit";
+     public static final String P_BASE64 = "base64";
+     public static final String P_QUOTED_PRINTABLE = "quoted-printable";
+
+     /**
+      * Value of disposition can be set to PduPart when the value is octet in
+      * the PDU.
+      * "from-data" instead of Form-data<Octet 128>.
+      * "attachment" instead of Attachment<Octet 129>.
+      * "inline" instead of Inline<Octet 130>.
+      */
+     static final byte[] DISPOSITION_FROM_DATA = "from-data".getBytes();
+     static final byte[] DISPOSITION_ATTACHMENT = "attachment".getBytes();
+     static final byte[] DISPOSITION_INLINE = "inline".getBytes();
+
+     /**
+      * Content-Disposition value.
+      */
+     public static final int P_DISPOSITION_FROM_DATA  = 0x80;
+     public static final int P_DISPOSITION_ATTACHMENT = 0x81;
+     public static final int P_DISPOSITION_INLINE     = 0x82;
+
+     /**
+      * Header of part.
+      */
+     private Map<Integer, Object> mPartHeader = null;
+
+     /**
+      * Data uri.
+      */
+     private Uri mUri = null;
+
+     /**
+      * Part data.
+      */
+     private byte[] mPartData = null;
+
+     private static final String TAG = "PduPart";
+
+     /**
+      * Empty Constructor.
+      */
+     @UnsupportedAppUsage
+     public PduPart() {
+         mPartHeader = new HashMap<Integer, Object>();
+     }
+
+     /**
+      * Set part data. The data are stored as byte array.
+      *
+      * @param data the data
+      */
+     @UnsupportedAppUsage
+     public void setData(byte[] data) {
+         if(data == null) {
+            return;
+        }
+
+         mPartData = new byte[data.length];
+         System.arraycopy(data, 0, mPartData, 0, data.length);
+     }
+
+     /**
+      * @return A copy of the part data or null if the data wasn't set or
+      *         the data is stored as Uri.
+      * @see #getDataUri
+      */
+     @UnsupportedAppUsage
+     public byte[] getData() {
+         if(mPartData == null) {
+            return null;
+         }
+
+         byte[] byteArray = new byte[mPartData.length];
+         System.arraycopy(mPartData, 0, byteArray, 0, mPartData.length);
+         return byteArray;
+     }
+
+    /**
+     * @return The length of the data, if this object have data, else 0.
+     */
+     @UnsupportedAppUsage
+     public int getDataLength() {
+         if(mPartData != null){
+             return mPartData.length;
+         } else {
+             return 0;
+         }
+     }
+
+
+     /**
+      * Set data uri. The data are stored as Uri.
+      *
+      * @param uri the uri
+      */
+     @UnsupportedAppUsage
+     public void setDataUri(Uri uri) {
+         mUri = uri;
+     }
+
+     /**
+      * @return The Uri of the part data or null if the data wasn't set or
+      *         the data is stored as byte array.
+      * @see #getData
+      */
+     @UnsupportedAppUsage
+     public Uri getDataUri() {
+         return mUri;
+     }
+
+     /**
+      * Set Content-id value
+      *
+      * @param contentId the content-id value
+      * @throws NullPointerException if the value is null.
+      */
+     @UnsupportedAppUsage
+     public void setContentId(byte[] contentId) {
+         if((contentId == null) || (contentId.length == 0)) {
+             throw new IllegalArgumentException(
+                     "Content-Id may not be null or empty.");
+         }
+
+         if ((contentId.length > 1)
+                 && ((char) contentId[0] == '<')
+                 && ((char) contentId[contentId.length - 1] == '>')) {
+             mPartHeader.put(P_CONTENT_ID, contentId);
+             return;
+         }
+
+         // Insert beginning '<' and trailing '>' for Content-Id.
+         byte[] buffer = new byte[contentId.length + 2];
+         buffer[0] = (byte) (0xff & '<');
+         buffer[buffer.length - 1] = (byte) (0xff & '>');
+         System.arraycopy(contentId, 0, buffer, 1, contentId.length);
+         mPartHeader.put(P_CONTENT_ID, buffer);
+     }
+
+     /**
+      * Get Content-id value.
+      *
+      * @return the value
+      */
+     @UnsupportedAppUsage
+     public byte[] getContentId() {
+         return (byte[]) mPartHeader.get(P_CONTENT_ID);
+     }
+
+     /**
+      * Set Char-set value.
+      *
+      * @param charset the value
+      */
+     @UnsupportedAppUsage
+     public void setCharset(int charset) {
+         mPartHeader.put(P_CHARSET, charset);
+     }
+
+     /**
+      * Get Char-set value
+      *
+      * @return the charset value. Return 0 if charset was not set.
+      */
+     @UnsupportedAppUsage
+     public int getCharset() {
+         Integer charset = (Integer) mPartHeader.get(P_CHARSET);
+         if(charset == null) {
+             return 0;
+         } else {
+             return charset.intValue();
+         }
+     }
+
+     /**
+      * Set Content-Location value.
+      *
+      * @param contentLocation the value
+      * @throws NullPointerException if the value is null.
+      */
+     @UnsupportedAppUsage
+     public void setContentLocation(byte[] contentLocation) {
+         if(contentLocation == null) {
+             throw new NullPointerException("null content-location");
+         }
+
+         mPartHeader.put(P_CONTENT_LOCATION, contentLocation);
+     }
+
+     /**
+      * Get Content-Location value.
+      *
+      * @return the value
+      *     return PduPart.disposition[0] instead of <Octet 128> (Form-data).
+      *     return PduPart.disposition[1] instead of <Octet 129> (Attachment).
+      *     return PduPart.disposition[2] instead of <Octet 130> (Inline).
+      */
+     @UnsupportedAppUsage
+     public byte[] getContentLocation() {
+         return (byte[]) mPartHeader.get(P_CONTENT_LOCATION);
+     }
+
+     /**
+      * Set Content-Disposition value.
+      * Use PduPart.disposition[0] instead of <Octet 128> (Form-data).
+      * Use PduPart.disposition[1] instead of <Octet 129> (Attachment).
+      * Use PduPart.disposition[2] instead of <Octet 130> (Inline).
+      *
+      * @param contentDisposition the value
+      * @throws NullPointerException if the value is null.
+      */
+     @UnsupportedAppUsage
+     public void setContentDisposition(byte[] contentDisposition) {
+         if(contentDisposition == null) {
+             throw new NullPointerException("null content-disposition");
+         }
+
+         mPartHeader.put(P_CONTENT_DISPOSITION, contentDisposition);
+     }
+
+     /**
+      * Get Content-Disposition value.
+      *
+      * @return the value
+      */
+     @UnsupportedAppUsage
+     public byte[] getContentDisposition() {
+         return (byte[]) mPartHeader.get(P_CONTENT_DISPOSITION);
+     }
+
+     /**
+      *  Set Content-Type value.
+      *
+      *  @param value the value
+      *  @throws NullPointerException if the value is null.
+      */
+     @UnsupportedAppUsage
+     public void setContentType(byte[] contentType) {
+         if(contentType == null) {
+             throw new NullPointerException("null content-type");
+         }
+
+         mPartHeader.put(P_CONTENT_TYPE, contentType);
+     }
+
+     /**
+      * Get Content-Type value of part.
+      *
+      * @return the value
+      */
+     @UnsupportedAppUsage
+     public byte[] getContentType() {
+         return (byte[]) mPartHeader.get(P_CONTENT_TYPE);
+     }
+
+     /**
+      * Set Content-Transfer-Encoding value
+      *
+      * @param contentId the content-id value
+      * @throws NullPointerException if the value is null.
+      */
+     @UnsupportedAppUsage
+     public void setContentTransferEncoding(byte[] contentTransferEncoding) {
+         if(contentTransferEncoding == null) {
+             throw new NullPointerException("null content-transfer-encoding");
+         }
+
+         mPartHeader.put(P_CONTENT_TRANSFER_ENCODING, contentTransferEncoding);
+     }
+
+     /**
+      * Get Content-Transfer-Encoding value.
+      *
+      * @return the value
+      */
+     @UnsupportedAppUsage
+     public byte[] getContentTransferEncoding() {
+         return (byte[]) mPartHeader.get(P_CONTENT_TRANSFER_ENCODING);
+     }
+
+     /**
+      * Set Content-type parameter: name.
+      *
+      * @param name the name value
+      * @throws NullPointerException if the value is null.
+      */
+     @UnsupportedAppUsage
+     public void setName(byte[] name) {
+         if(null == name) {
+             throw new NullPointerException("null content-id");
+         }
+
+         mPartHeader.put(P_NAME, name);
+     }
+
+     /**
+      *  Get content-type parameter: name.
+      *
+      *  @return the name
+      */
+     @UnsupportedAppUsage
+     public byte[] getName() {
+         return (byte[]) mPartHeader.get(P_NAME);
+     }
+
+     /**
+      * Get Content-disposition parameter: filename
+      *
+      * @param fileName the filename value
+      * @throws NullPointerException if the value is null.
+      */
+     @UnsupportedAppUsage
+     public void setFilename(byte[] fileName) {
+         if(null == fileName) {
+             throw new NullPointerException("null content-id");
+         }
+
+         mPartHeader.put(P_FILENAME, fileName);
+     }
+
+     /**
+      * Set Content-disposition parameter: filename
+      *
+      * @return the filename
+      */
+     @UnsupportedAppUsage
+     public byte[] getFilename() {
+         return (byte[]) mPartHeader.get(P_FILENAME);
+     }
+
+    @UnsupportedAppUsage
+    public String generateLocation() {
+        // Assumption: At least one of the content-location / name / filename
+        // or content-id should be set. This is guaranteed by the PduParser
+        // for incoming messages and by MM composer for outgoing messages.
+        byte[] location = (byte[]) mPartHeader.get(P_NAME);
+        if(null == location) {
+            location = (byte[]) mPartHeader.get(P_FILENAME);
+
+            if (null == location) {
+                location = (byte[]) mPartHeader.get(P_CONTENT_LOCATION);
+            }
+        }
+
+        if (null == location) {
+            byte[] contentId = (byte[]) mPartHeader.get(P_CONTENT_ID);
+            return "cid:" + new String(contentId);
+        } else {
+            return new String(location);
+        }
+    }
+}
+
diff --git a/telephony/java/com/google/android/mms/pdu/PduPersister.java b/telephony/java/com/google/android/mms/pdu/PduPersister.java
new file mode 100755
index 0000000..93f3065
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/PduPersister.java
@@ -0,0 +1,1573 @@
+/*
+ * Copyright (C) 2007-2008 Esmertec AG.
+ * Copyright (C) 2007-2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import android.content.ContentResolver;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.database.DatabaseUtils;
+import android.drm.DrmManagerClient;
+import android.net.Uri;
+import android.os.ParcelFileDescriptor;
+import android.provider.Telephony;
+import android.provider.Telephony.Mms;
+import android.provider.Telephony.Mms.Addr;
+import android.provider.Telephony.Mms.Part;
+import android.provider.Telephony.MmsSms;
+import android.provider.Telephony.MmsSms.PendingMessages;
+import android.provider.Telephony.Threads;
+import android.telephony.PhoneNumberUtils;
+import android.telephony.SubscriptionManager;
+import android.telephony.TelephonyManager;
+import android.text.TextUtils;
+import android.util.Log;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import com.google.android.mms.ContentType;
+import com.google.android.mms.InvalidHeaderValueException;
+import com.google.android.mms.MmsException;
+import com.google.android.mms.util.DownloadDrmHelper;
+import com.google.android.mms.util.DrmConvertSession;
+import com.google.android.mms.util.PduCache;
+import com.google.android.mms.util.PduCacheEntry;
+import com.google.android.mms.util.SqliteWrapper;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.UnsupportedEncodingException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+
+/**
+ * This class is the high-level manager of PDU storage.
+ */
+public class PduPersister {
+    private static final String TAG = "PduPersister";
+    private static final boolean DEBUG = false;
+    private static final boolean LOCAL_LOGV = false;
+
+    private static final long DUMMY_THREAD_ID = Long.MAX_VALUE;
+
+    /**
+     * The uri of temporary drm objects.
+     */
+    public static final String TEMPORARY_DRM_OBJECT_URI =
+        "content://mms/" + Long.MAX_VALUE + "/part";
+    /**
+     * Indicate that we transiently failed to process a MM.
+     */
+    public static final int PROC_STATUS_TRANSIENT_FAILURE   = 1;
+    /**
+     * Indicate that we permanently failed to process a MM.
+     */
+    public static final int PROC_STATUS_PERMANENTLY_FAILURE = 2;
+    /**
+     * Indicate that we have successfully processed a MM.
+     */
+    public static final int PROC_STATUS_COMPLETED           = 3;
+
+    private static PduPersister sPersister;
+    @UnsupportedAppUsage
+    private static final PduCache PDU_CACHE_INSTANCE;
+
+    @UnsupportedAppUsage
+    private static final int[] ADDRESS_FIELDS = new int[] {
+            PduHeaders.BCC,
+            PduHeaders.CC,
+            PduHeaders.FROM,
+            PduHeaders.TO
+    };
+
+    private static final String[] PDU_PROJECTION = new String[] {
+        Mms._ID,
+        Mms.MESSAGE_BOX,
+        Mms.THREAD_ID,
+        Mms.RETRIEVE_TEXT,
+        Mms.SUBJECT,
+        Mms.CONTENT_LOCATION,
+        Mms.CONTENT_TYPE,
+        Mms.MESSAGE_CLASS,
+        Mms.MESSAGE_ID,
+        Mms.RESPONSE_TEXT,
+        Mms.TRANSACTION_ID,
+        Mms.CONTENT_CLASS,
+        Mms.DELIVERY_REPORT,
+        Mms.MESSAGE_TYPE,
+        Mms.MMS_VERSION,
+        Mms.PRIORITY,
+        Mms.READ_REPORT,
+        Mms.READ_STATUS,
+        Mms.REPORT_ALLOWED,
+        Mms.RETRIEVE_STATUS,
+        Mms.STATUS,
+        Mms.DATE,
+        Mms.DELIVERY_TIME,
+        Mms.EXPIRY,
+        Mms.MESSAGE_SIZE,
+        Mms.SUBJECT_CHARSET,
+        Mms.RETRIEVE_TEXT_CHARSET,
+    };
+
+    private static final int PDU_COLUMN_ID                    = 0;
+    private static final int PDU_COLUMN_MESSAGE_BOX           = 1;
+    private static final int PDU_COLUMN_THREAD_ID             = 2;
+    private static final int PDU_COLUMN_RETRIEVE_TEXT         = 3;
+    private static final int PDU_COLUMN_SUBJECT               = 4;
+    private static final int PDU_COLUMN_CONTENT_LOCATION      = 5;
+    private static final int PDU_COLUMN_CONTENT_TYPE          = 6;
+    private static final int PDU_COLUMN_MESSAGE_CLASS         = 7;
+    private static final int PDU_COLUMN_MESSAGE_ID            = 8;
+    private static final int PDU_COLUMN_RESPONSE_TEXT         = 9;
+    private static final int PDU_COLUMN_TRANSACTION_ID        = 10;
+    private static final int PDU_COLUMN_CONTENT_CLASS         = 11;
+    private static final int PDU_COLUMN_DELIVERY_REPORT       = 12;
+    private static final int PDU_COLUMN_MESSAGE_TYPE          = 13;
+    private static final int PDU_COLUMN_MMS_VERSION           = 14;
+    private static final int PDU_COLUMN_PRIORITY              = 15;
+    private static final int PDU_COLUMN_READ_REPORT           = 16;
+    private static final int PDU_COLUMN_READ_STATUS           = 17;
+    private static final int PDU_COLUMN_REPORT_ALLOWED        = 18;
+    private static final int PDU_COLUMN_RETRIEVE_STATUS       = 19;
+    private static final int PDU_COLUMN_STATUS                = 20;
+    private static final int PDU_COLUMN_DATE                  = 21;
+    private static final int PDU_COLUMN_DELIVERY_TIME         = 22;
+    private static final int PDU_COLUMN_EXPIRY                = 23;
+    private static final int PDU_COLUMN_MESSAGE_SIZE          = 24;
+    private static final int PDU_COLUMN_SUBJECT_CHARSET       = 25;
+    private static final int PDU_COLUMN_RETRIEVE_TEXT_CHARSET = 26;
+
+    @UnsupportedAppUsage
+    private static final String[] PART_PROJECTION = new String[] {
+        Part._ID,
+        Part.CHARSET,
+        Part.CONTENT_DISPOSITION,
+        Part.CONTENT_ID,
+        Part.CONTENT_LOCATION,
+        Part.CONTENT_TYPE,
+        Part.FILENAME,
+        Part.NAME,
+        Part.TEXT
+    };
+
+    private static final int PART_COLUMN_ID                  = 0;
+    private static final int PART_COLUMN_CHARSET             = 1;
+    private static final int PART_COLUMN_CONTENT_DISPOSITION = 2;
+    private static final int PART_COLUMN_CONTENT_ID          = 3;
+    private static final int PART_COLUMN_CONTENT_LOCATION    = 4;
+    private static final int PART_COLUMN_CONTENT_TYPE        = 5;
+    private static final int PART_COLUMN_FILENAME            = 6;
+    private static final int PART_COLUMN_NAME                = 7;
+    private static final int PART_COLUMN_TEXT                = 8;
+
+    @UnsupportedAppUsage
+    private static final HashMap<Uri, Integer> MESSAGE_BOX_MAP;
+    // These map are used for convenience in persist() and load().
+    private static final HashMap<Integer, Integer> CHARSET_COLUMN_INDEX_MAP;
+    private static final HashMap<Integer, Integer> ENCODED_STRING_COLUMN_INDEX_MAP;
+    private static final HashMap<Integer, Integer> TEXT_STRING_COLUMN_INDEX_MAP;
+    private static final HashMap<Integer, Integer> OCTET_COLUMN_INDEX_MAP;
+    private static final HashMap<Integer, Integer> LONG_COLUMN_INDEX_MAP;
+    @UnsupportedAppUsage
+    private static final HashMap<Integer, String> CHARSET_COLUMN_NAME_MAP;
+    @UnsupportedAppUsage
+    private static final HashMap<Integer, String> ENCODED_STRING_COLUMN_NAME_MAP;
+    @UnsupportedAppUsage
+    private static final HashMap<Integer, String> TEXT_STRING_COLUMN_NAME_MAP;
+    @UnsupportedAppUsage
+    private static final HashMap<Integer, String> OCTET_COLUMN_NAME_MAP;
+    @UnsupportedAppUsage
+    private static final HashMap<Integer, String> LONG_COLUMN_NAME_MAP;
+
+    static {
+        MESSAGE_BOX_MAP = new HashMap<Uri, Integer>();
+        MESSAGE_BOX_MAP.put(Mms.Inbox.CONTENT_URI,  Mms.MESSAGE_BOX_INBOX);
+        MESSAGE_BOX_MAP.put(Mms.Sent.CONTENT_URI,   Mms.MESSAGE_BOX_SENT);
+        MESSAGE_BOX_MAP.put(Mms.Draft.CONTENT_URI,  Mms.MESSAGE_BOX_DRAFTS);
+        MESSAGE_BOX_MAP.put(Mms.Outbox.CONTENT_URI, Mms.MESSAGE_BOX_OUTBOX);
+
+        CHARSET_COLUMN_INDEX_MAP = new HashMap<Integer, Integer>();
+        CHARSET_COLUMN_INDEX_MAP.put(PduHeaders.SUBJECT, PDU_COLUMN_SUBJECT_CHARSET);
+        CHARSET_COLUMN_INDEX_MAP.put(PduHeaders.RETRIEVE_TEXT, PDU_COLUMN_RETRIEVE_TEXT_CHARSET);
+
+        CHARSET_COLUMN_NAME_MAP = new HashMap<Integer, String>();
+        CHARSET_COLUMN_NAME_MAP.put(PduHeaders.SUBJECT, Mms.SUBJECT_CHARSET);
+        CHARSET_COLUMN_NAME_MAP.put(PduHeaders.RETRIEVE_TEXT, Mms.RETRIEVE_TEXT_CHARSET);
+
+        // Encoded string field code -> column index/name map.
+        ENCODED_STRING_COLUMN_INDEX_MAP = new HashMap<Integer, Integer>();
+        ENCODED_STRING_COLUMN_INDEX_MAP.put(PduHeaders.RETRIEVE_TEXT, PDU_COLUMN_RETRIEVE_TEXT);
+        ENCODED_STRING_COLUMN_INDEX_MAP.put(PduHeaders.SUBJECT, PDU_COLUMN_SUBJECT);
+
+        ENCODED_STRING_COLUMN_NAME_MAP = new HashMap<Integer, String>();
+        ENCODED_STRING_COLUMN_NAME_MAP.put(PduHeaders.RETRIEVE_TEXT, Mms.RETRIEVE_TEXT);
+        ENCODED_STRING_COLUMN_NAME_MAP.put(PduHeaders.SUBJECT, Mms.SUBJECT);
+
+        // Text string field code -> column index/name map.
+        TEXT_STRING_COLUMN_INDEX_MAP = new HashMap<Integer, Integer>();
+        TEXT_STRING_COLUMN_INDEX_MAP.put(PduHeaders.CONTENT_LOCATION, PDU_COLUMN_CONTENT_LOCATION);
+        TEXT_STRING_COLUMN_INDEX_MAP.put(PduHeaders.CONTENT_TYPE, PDU_COLUMN_CONTENT_TYPE);
+        TEXT_STRING_COLUMN_INDEX_MAP.put(PduHeaders.MESSAGE_CLASS, PDU_COLUMN_MESSAGE_CLASS);
+        TEXT_STRING_COLUMN_INDEX_MAP.put(PduHeaders.MESSAGE_ID, PDU_COLUMN_MESSAGE_ID);
+        TEXT_STRING_COLUMN_INDEX_MAP.put(PduHeaders.RESPONSE_TEXT, PDU_COLUMN_RESPONSE_TEXT);
+        TEXT_STRING_COLUMN_INDEX_MAP.put(PduHeaders.TRANSACTION_ID, PDU_COLUMN_TRANSACTION_ID);
+
+        TEXT_STRING_COLUMN_NAME_MAP = new HashMap<Integer, String>();
+        TEXT_STRING_COLUMN_NAME_MAP.put(PduHeaders.CONTENT_LOCATION, Mms.CONTENT_LOCATION);
+        TEXT_STRING_COLUMN_NAME_MAP.put(PduHeaders.CONTENT_TYPE, Mms.CONTENT_TYPE);
+        TEXT_STRING_COLUMN_NAME_MAP.put(PduHeaders.MESSAGE_CLASS, Mms.MESSAGE_CLASS);
+        TEXT_STRING_COLUMN_NAME_MAP.put(PduHeaders.MESSAGE_ID, Mms.MESSAGE_ID);
+        TEXT_STRING_COLUMN_NAME_MAP.put(PduHeaders.RESPONSE_TEXT, Mms.RESPONSE_TEXT);
+        TEXT_STRING_COLUMN_NAME_MAP.put(PduHeaders.TRANSACTION_ID, Mms.TRANSACTION_ID);
+
+        // Octet field code -> column index/name map.
+        OCTET_COLUMN_INDEX_MAP = new HashMap<Integer, Integer>();
+        OCTET_COLUMN_INDEX_MAP.put(PduHeaders.CONTENT_CLASS, PDU_COLUMN_CONTENT_CLASS);
+        OCTET_COLUMN_INDEX_MAP.put(PduHeaders.DELIVERY_REPORT, PDU_COLUMN_DELIVERY_REPORT);
+        OCTET_COLUMN_INDEX_MAP.put(PduHeaders.MESSAGE_TYPE, PDU_COLUMN_MESSAGE_TYPE);
+        OCTET_COLUMN_INDEX_MAP.put(PduHeaders.MMS_VERSION, PDU_COLUMN_MMS_VERSION);
+        OCTET_COLUMN_INDEX_MAP.put(PduHeaders.PRIORITY, PDU_COLUMN_PRIORITY);
+        OCTET_COLUMN_INDEX_MAP.put(PduHeaders.READ_REPORT, PDU_COLUMN_READ_REPORT);
+        OCTET_COLUMN_INDEX_MAP.put(PduHeaders.READ_STATUS, PDU_COLUMN_READ_STATUS);
+        OCTET_COLUMN_INDEX_MAP.put(PduHeaders.REPORT_ALLOWED, PDU_COLUMN_REPORT_ALLOWED);
+        OCTET_COLUMN_INDEX_MAP.put(PduHeaders.RETRIEVE_STATUS, PDU_COLUMN_RETRIEVE_STATUS);
+        OCTET_COLUMN_INDEX_MAP.put(PduHeaders.STATUS, PDU_COLUMN_STATUS);
+
+        OCTET_COLUMN_NAME_MAP = new HashMap<Integer, String>();
+        OCTET_COLUMN_NAME_MAP.put(PduHeaders.CONTENT_CLASS, Mms.CONTENT_CLASS);
+        OCTET_COLUMN_NAME_MAP.put(PduHeaders.DELIVERY_REPORT, Mms.DELIVERY_REPORT);
+        OCTET_COLUMN_NAME_MAP.put(PduHeaders.MESSAGE_TYPE, Mms.MESSAGE_TYPE);
+        OCTET_COLUMN_NAME_MAP.put(PduHeaders.MMS_VERSION, Mms.MMS_VERSION);
+        OCTET_COLUMN_NAME_MAP.put(PduHeaders.PRIORITY, Mms.PRIORITY);
+        OCTET_COLUMN_NAME_MAP.put(PduHeaders.READ_REPORT, Mms.READ_REPORT);
+        OCTET_COLUMN_NAME_MAP.put(PduHeaders.READ_STATUS, Mms.READ_STATUS);
+        OCTET_COLUMN_NAME_MAP.put(PduHeaders.REPORT_ALLOWED, Mms.REPORT_ALLOWED);
+        OCTET_COLUMN_NAME_MAP.put(PduHeaders.RETRIEVE_STATUS, Mms.RETRIEVE_STATUS);
+        OCTET_COLUMN_NAME_MAP.put(PduHeaders.STATUS, Mms.STATUS);
+
+        // Long field code -> column index/name map.
+        LONG_COLUMN_INDEX_MAP = new HashMap<Integer, Integer>();
+        LONG_COLUMN_INDEX_MAP.put(PduHeaders.DATE, PDU_COLUMN_DATE);
+        LONG_COLUMN_INDEX_MAP.put(PduHeaders.DELIVERY_TIME, PDU_COLUMN_DELIVERY_TIME);
+        LONG_COLUMN_INDEX_MAP.put(PduHeaders.EXPIRY, PDU_COLUMN_EXPIRY);
+        LONG_COLUMN_INDEX_MAP.put(PduHeaders.MESSAGE_SIZE, PDU_COLUMN_MESSAGE_SIZE);
+
+        LONG_COLUMN_NAME_MAP = new HashMap<Integer, String>();
+        LONG_COLUMN_NAME_MAP.put(PduHeaders.DATE, Mms.DATE);
+        LONG_COLUMN_NAME_MAP.put(PduHeaders.DELIVERY_TIME, Mms.DELIVERY_TIME);
+        LONG_COLUMN_NAME_MAP.put(PduHeaders.EXPIRY, Mms.EXPIRY);
+        LONG_COLUMN_NAME_MAP.put(PduHeaders.MESSAGE_SIZE, Mms.MESSAGE_SIZE);
+
+        PDU_CACHE_INSTANCE = PduCache.getInstance();
+     }
+
+    @UnsupportedAppUsage
+    private final Context mContext;
+    @UnsupportedAppUsage
+    private final ContentResolver mContentResolver;
+    private final DrmManagerClient mDrmManagerClient;
+    @UnsupportedAppUsage
+    private final TelephonyManager mTelephonyManager;
+
+    private PduPersister(Context context) {
+        mContext = context;
+        mContentResolver = context.getContentResolver();
+        mDrmManagerClient = new DrmManagerClient(context);
+        mTelephonyManager = (TelephonyManager)context
+                .getSystemService(Context.TELEPHONY_SERVICE);
+     }
+
+    /** Get(or create if not exist) an instance of PduPersister */
+    @UnsupportedAppUsage
+    public static PduPersister getPduPersister(Context context) {
+        if ((sPersister == null)) {
+            sPersister = new PduPersister(context);
+        } else if (!context.equals(sPersister.mContext)) {
+            sPersister.release();
+            sPersister = new PduPersister(context);
+        }
+
+        return sPersister;
+    }
+
+    private void setEncodedStringValueToHeaders(
+            Cursor c, int columnIndex,
+            PduHeaders headers, int mapColumn) {
+        String s = c.getString(columnIndex);
+        if ((s != null) && (s.length() > 0)) {
+            int charsetColumnIndex = CHARSET_COLUMN_INDEX_MAP.get(mapColumn);
+            int charset = c.getInt(charsetColumnIndex);
+            EncodedStringValue value = new EncodedStringValue(
+                    charset, getBytes(s));
+            headers.setEncodedStringValue(value, mapColumn);
+        }
+    }
+
+    private void setTextStringToHeaders(
+            Cursor c, int columnIndex,
+            PduHeaders headers, int mapColumn) {
+        String s = c.getString(columnIndex);
+        if (s != null) {
+            headers.setTextString(getBytes(s), mapColumn);
+        }
+    }
+
+    private void setOctetToHeaders(
+            Cursor c, int columnIndex,
+            PduHeaders headers, int mapColumn) throws InvalidHeaderValueException {
+        if (!c.isNull(columnIndex)) {
+            int b = c.getInt(columnIndex);
+            headers.setOctet(b, mapColumn);
+        }
+    }
+
+    private void setLongToHeaders(
+            Cursor c, int columnIndex,
+            PduHeaders headers, int mapColumn) {
+        if (!c.isNull(columnIndex)) {
+            long l = c.getLong(columnIndex);
+            headers.setLongInteger(l, mapColumn);
+        }
+    }
+
+    @UnsupportedAppUsage
+    private Integer getIntegerFromPartColumn(Cursor c, int columnIndex) {
+        if (!c.isNull(columnIndex)) {
+            return c.getInt(columnIndex);
+        }
+        return null;
+    }
+
+    @UnsupportedAppUsage
+    private byte[] getByteArrayFromPartColumn(Cursor c, int columnIndex) {
+        if (!c.isNull(columnIndex)) {
+            return getBytes(c.getString(columnIndex));
+        }
+        return null;
+    }
+
+    private PduPart[] loadParts(long msgId) throws MmsException {
+        Cursor c = SqliteWrapper.query(mContext, mContentResolver,
+                Uri.parse("content://mms/" + msgId + "/part"),
+                PART_PROJECTION, null, null, null);
+
+        PduPart[] parts = null;
+
+        try {
+            if ((c == null) || (c.getCount() == 0)) {
+                if (LOCAL_LOGV) {
+                    Log.v(TAG, "loadParts(" + msgId + "): no part to load.");
+                }
+                return null;
+            }
+
+            int partCount = c.getCount();
+            int partIdx = 0;
+            parts = new PduPart[partCount];
+            while (c.moveToNext()) {
+                PduPart part = new PduPart();
+                Integer charset = getIntegerFromPartColumn(
+                        c, PART_COLUMN_CHARSET);
+                if (charset != null) {
+                    part.setCharset(charset);
+                }
+
+                byte[] contentDisposition = getByteArrayFromPartColumn(
+                        c, PART_COLUMN_CONTENT_DISPOSITION);
+                if (contentDisposition != null) {
+                    part.setContentDisposition(contentDisposition);
+                }
+
+                byte[] contentId = getByteArrayFromPartColumn(
+                        c, PART_COLUMN_CONTENT_ID);
+                if (contentId != null) {
+                    part.setContentId(contentId);
+                }
+
+                byte[] contentLocation = getByteArrayFromPartColumn(
+                        c, PART_COLUMN_CONTENT_LOCATION);
+                if (contentLocation != null) {
+                    part.setContentLocation(contentLocation);
+                }
+
+                byte[] contentType = getByteArrayFromPartColumn(
+                        c, PART_COLUMN_CONTENT_TYPE);
+                if (contentType != null) {
+                    part.setContentType(contentType);
+                } else {
+                    throw new MmsException("Content-Type must be set.");
+                }
+
+                byte[] fileName = getByteArrayFromPartColumn(
+                        c, PART_COLUMN_FILENAME);
+                if (fileName != null) {
+                    part.setFilename(fileName);
+                }
+
+                byte[] name = getByteArrayFromPartColumn(
+                        c, PART_COLUMN_NAME);
+                if (name != null) {
+                    part.setName(name);
+                }
+
+                // Construct a Uri for this part.
+                long partId = c.getLong(PART_COLUMN_ID);
+                Uri partURI = Uri.parse("content://mms/part/" + partId);
+                part.setDataUri(partURI);
+
+                // For images/audio/video, we won't keep their data in Part
+                // because their renderer accept Uri as source.
+                String type = toIsoString(contentType);
+                if (!ContentType.isImageType(type)
+                        && !ContentType.isAudioType(type)
+                        && !ContentType.isVideoType(type)) {
+                    ByteArrayOutputStream baos = new ByteArrayOutputStream();
+                    InputStream is = null;
+
+                    // Store simple string values directly in the database instead of an
+                    // external file.  This makes the text searchable and retrieval slightly
+                    // faster.
+                    if (ContentType.TEXT_PLAIN.equals(type) || ContentType.APP_SMIL.equals(type)
+                            || ContentType.TEXT_HTML.equals(type)) {
+                        String text = c.getString(PART_COLUMN_TEXT);
+                        byte [] blob = new EncodedStringValue(text != null ? text : "")
+                            .getTextString();
+                        baos.write(blob, 0, blob.length);
+                    } else {
+
+                        try {
+                            is = mContentResolver.openInputStream(partURI);
+
+                            byte[] buffer = new byte[256];
+                            int len = is.read(buffer);
+                            while (len >= 0) {
+                                baos.write(buffer, 0, len);
+                                len = is.read(buffer);
+                            }
+                        } catch (IOException e) {
+                            Log.e(TAG, "Failed to load part data", e);
+                            c.close();
+                            throw new MmsException(e);
+                        } finally {
+                            if (is != null) {
+                                try {
+                                    is.close();
+                                } catch (IOException e) {
+                                    Log.e(TAG, "Failed to close stream", e);
+                                } // Ignore
+                            }
+                        }
+                    }
+                    part.setData(baos.toByteArray());
+                }
+                parts[partIdx++] = part;
+            }
+        } finally {
+            if (c != null) {
+                c.close();
+            }
+        }
+
+        return parts;
+    }
+
+    private void loadAddress(long msgId, PduHeaders headers) {
+        Cursor c = SqliteWrapper.query(mContext, mContentResolver,
+                Uri.parse("content://mms/" + msgId + "/addr"),
+                new String[] { Addr.ADDRESS, Addr.CHARSET, Addr.TYPE },
+                null, null, null);
+
+        if (c != null) {
+            try {
+                while (c.moveToNext()) {
+                    String addr = c.getString(0);
+                    if (!TextUtils.isEmpty(addr)) {
+                        int addrType = c.getInt(2);
+                        switch (addrType) {
+                            case PduHeaders.FROM:
+                                headers.setEncodedStringValue(
+                                        new EncodedStringValue(c.getInt(1), getBytes(addr)),
+                                        addrType);
+                                break;
+                            case PduHeaders.TO:
+                            case PduHeaders.CC:
+                            case PduHeaders.BCC:
+                                headers.appendEncodedStringValue(
+                                        new EncodedStringValue(c.getInt(1), getBytes(addr)),
+                                        addrType);
+                                break;
+                            default:
+                                Log.e(TAG, "Unknown address type: " + addrType);
+                                break;
+                        }
+                    }
+                }
+            } finally {
+                c.close();
+            }
+        }
+    }
+
+    /**
+     * Load a PDU from storage by given Uri.
+     *
+     * @param uri The Uri of the PDU to be loaded.
+     * @return A generic PDU object, it may be cast to dedicated PDU.
+     * @throws MmsException Failed to load some fields of a PDU.
+     */
+    @UnsupportedAppUsage
+    public GenericPdu load(Uri uri) throws MmsException {
+        GenericPdu pdu = null;
+        PduCacheEntry cacheEntry = null;
+        int msgBox = 0;
+        long threadId = -1;
+        try {
+            synchronized(PDU_CACHE_INSTANCE) {
+                if (PDU_CACHE_INSTANCE.isUpdating(uri)) {
+                    if (LOCAL_LOGV) {
+                        Log.v(TAG, "load: " + uri + " blocked by isUpdating()");
+                    }
+                    try {
+                        PDU_CACHE_INSTANCE.wait();
+                    } catch (InterruptedException e) {
+                        Log.e(TAG, "load: ", e);
+                    }
+                    cacheEntry = PDU_CACHE_INSTANCE.get(uri);
+                    if (cacheEntry != null) {
+                        return cacheEntry.getPdu();
+                    }
+                }
+                // Tell the cache to indicate to other callers that this item
+                // is currently being updated.
+                PDU_CACHE_INSTANCE.setUpdating(uri, true);
+            }
+
+            Cursor c = SqliteWrapper.query(mContext, mContentResolver, uri,
+                    PDU_PROJECTION, null, null, null);
+            PduHeaders headers = new PduHeaders();
+            Set<Entry<Integer, Integer>> set;
+            long msgId = ContentUris.parseId(uri);
+
+            try {
+                if ((c == null) || (c.getCount() != 1) || !c.moveToFirst()) {
+                    throw new MmsException("Bad uri: " + uri);
+                }
+
+                msgBox = c.getInt(PDU_COLUMN_MESSAGE_BOX);
+                threadId = c.getLong(PDU_COLUMN_THREAD_ID);
+
+                set = ENCODED_STRING_COLUMN_INDEX_MAP.entrySet();
+                for (Entry<Integer, Integer> e : set) {
+                    setEncodedStringValueToHeaders(
+                            c, e.getValue(), headers, e.getKey());
+                }
+
+                set = TEXT_STRING_COLUMN_INDEX_MAP.entrySet();
+                for (Entry<Integer, Integer> e : set) {
+                    setTextStringToHeaders(
+                            c, e.getValue(), headers, e.getKey());
+                }
+
+                set = OCTET_COLUMN_INDEX_MAP.entrySet();
+                for (Entry<Integer, Integer> e : set) {
+                    setOctetToHeaders(
+                            c, e.getValue(), headers, e.getKey());
+                }
+
+                set = LONG_COLUMN_INDEX_MAP.entrySet();
+                for (Entry<Integer, Integer> e : set) {
+                    setLongToHeaders(
+                            c, e.getValue(), headers, e.getKey());
+                }
+            } finally {
+                if (c != null) {
+                    c.close();
+                }
+            }
+
+            // Check whether 'msgId' has been assigned a valid value.
+            if (msgId == -1L) {
+                throw new MmsException("Error! ID of the message: -1.");
+            }
+
+            // Load address information of the MM.
+            loadAddress(msgId, headers);
+
+            int msgType = headers.getOctet(PduHeaders.MESSAGE_TYPE);
+            PduBody body = new PduBody();
+
+            // For PDU which type is M_retrieve.conf or Send.req, we should
+            // load multiparts and put them into the body of the PDU.
+            if ((msgType == PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF)
+                    || (msgType == PduHeaders.MESSAGE_TYPE_SEND_REQ)) {
+                PduPart[] parts = loadParts(msgId);
+                if (parts != null) {
+                    int partsNum = parts.length;
+                    for (int i = 0; i < partsNum; i++) {
+                        body.addPart(parts[i]);
+                    }
+                }
+            }
+
+            switch (msgType) {
+            case PduHeaders.MESSAGE_TYPE_NOTIFICATION_IND:
+                pdu = new NotificationInd(headers);
+                break;
+            case PduHeaders.MESSAGE_TYPE_DELIVERY_IND:
+                pdu = new DeliveryInd(headers);
+                break;
+            case PduHeaders.MESSAGE_TYPE_READ_ORIG_IND:
+                pdu = new ReadOrigInd(headers);
+                break;
+            case PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF:
+                pdu = new RetrieveConf(headers, body);
+                break;
+            case PduHeaders.MESSAGE_TYPE_SEND_REQ:
+                pdu = new SendReq(headers, body);
+                break;
+            case PduHeaders.MESSAGE_TYPE_ACKNOWLEDGE_IND:
+                pdu = new AcknowledgeInd(headers);
+                break;
+            case PduHeaders.MESSAGE_TYPE_NOTIFYRESP_IND:
+                pdu = new NotifyRespInd(headers);
+                break;
+            case PduHeaders.MESSAGE_TYPE_READ_REC_IND:
+                pdu = new ReadRecInd(headers);
+                break;
+            case PduHeaders.MESSAGE_TYPE_SEND_CONF:
+            case PduHeaders.MESSAGE_TYPE_FORWARD_REQ:
+            case PduHeaders.MESSAGE_TYPE_FORWARD_CONF:
+            case PduHeaders.MESSAGE_TYPE_MBOX_STORE_REQ:
+            case PduHeaders.MESSAGE_TYPE_MBOX_STORE_CONF:
+            case PduHeaders.MESSAGE_TYPE_MBOX_VIEW_REQ:
+            case PduHeaders.MESSAGE_TYPE_MBOX_VIEW_CONF:
+            case PduHeaders.MESSAGE_TYPE_MBOX_UPLOAD_REQ:
+            case PduHeaders.MESSAGE_TYPE_MBOX_UPLOAD_CONF:
+            case PduHeaders.MESSAGE_TYPE_MBOX_DELETE_REQ:
+            case PduHeaders.MESSAGE_TYPE_MBOX_DELETE_CONF:
+            case PduHeaders.MESSAGE_TYPE_MBOX_DESCR:
+            case PduHeaders.MESSAGE_TYPE_DELETE_REQ:
+            case PduHeaders.MESSAGE_TYPE_DELETE_CONF:
+            case PduHeaders.MESSAGE_TYPE_CANCEL_REQ:
+            case PduHeaders.MESSAGE_TYPE_CANCEL_CONF:
+                throw new MmsException(
+                        "Unsupported PDU type: " + Integer.toHexString(msgType));
+
+            default:
+                throw new MmsException(
+                        "Unrecognized PDU type: " + Integer.toHexString(msgType));
+            }
+        } finally {
+            synchronized(PDU_CACHE_INSTANCE) {
+                if (pdu != null) {
+                    assert(PDU_CACHE_INSTANCE.get(uri) == null);
+                    // Update the cache entry with the real info
+                    cacheEntry = new PduCacheEntry(pdu, msgBox, threadId);
+                    PDU_CACHE_INSTANCE.put(uri, cacheEntry);
+                }
+                PDU_CACHE_INSTANCE.setUpdating(uri, false);
+                PDU_CACHE_INSTANCE.notifyAll(); // tell anybody waiting on this entry to go ahead
+            }
+        }
+        return pdu;
+    }
+
+    @UnsupportedAppUsage
+    private void persistAddress(
+            long msgId, int type, EncodedStringValue[] array) {
+        ContentValues values = new ContentValues(3);
+
+        for (EncodedStringValue addr : array) {
+            values.clear(); // Clear all values first.
+            values.put(Addr.ADDRESS, toIsoString(addr.getTextString()));
+            values.put(Addr.CHARSET, addr.getCharacterSet());
+            values.put(Addr.TYPE, type);
+
+            Uri uri = Uri.parse("content://mms/" + msgId + "/addr");
+            SqliteWrapper.insert(mContext, mContentResolver, uri, values);
+        }
+    }
+
+    @UnsupportedAppUsage
+    private static String getPartContentType(PduPart part) {
+        return part.getContentType() == null ? null : toIsoString(part.getContentType());
+    }
+
+    @UnsupportedAppUsage
+    public Uri persistPart(PduPart part, long msgId, HashMap<Uri, InputStream> preOpenedFiles)
+            throws MmsException {
+        Uri uri = Uri.parse("content://mms/" + msgId + "/part");
+        ContentValues values = new ContentValues(8);
+
+        int charset = part.getCharset();
+        if (charset != 0 ) {
+            values.put(Part.CHARSET, charset);
+        }
+
+        String contentType = getPartContentType(part);
+        if (contentType != null) {
+            // There is no "image/jpg" in Android (and it's an invalid mimetype).
+            // Change it to "image/jpeg"
+            if (ContentType.IMAGE_JPG.equals(contentType)) {
+                contentType = ContentType.IMAGE_JPEG;
+            }
+
+            values.put(Part.CONTENT_TYPE, contentType);
+            // To ensure the SMIL part is always the first part.
+            if (ContentType.APP_SMIL.equals(contentType)) {
+                values.put(Part.SEQ, -1);
+            }
+        } else {
+            throw new MmsException("MIME type of the part must be set.");
+        }
+
+        if (part.getFilename() != null) {
+            String fileName = new String(part.getFilename());
+            values.put(Part.FILENAME, fileName);
+        }
+
+        if (part.getName() != null) {
+            String name = new String(part.getName());
+            values.put(Part.NAME, name);
+        }
+
+        Object value = null;
+        if (part.getContentDisposition() != null) {
+            value = toIsoString(part.getContentDisposition());
+            values.put(Part.CONTENT_DISPOSITION, (String) value);
+        }
+
+        if (part.getContentId() != null) {
+            value = toIsoString(part.getContentId());
+            values.put(Part.CONTENT_ID, (String) value);
+        }
+
+        if (part.getContentLocation() != null) {
+            value = toIsoString(part.getContentLocation());
+            values.put(Part.CONTENT_LOCATION, (String) value);
+        }
+
+        Uri res = SqliteWrapper.insert(mContext, mContentResolver, uri, values);
+        if (res == null) {
+            throw new MmsException("Failed to persist part, return null.");
+        }
+
+        persistData(part, res, contentType, preOpenedFiles);
+        // After successfully store the data, we should update
+        // the dataUri of the part.
+        part.setDataUri(res);
+
+        return res;
+    }
+
+    /**
+     * Save data of the part into storage. The source data may be given
+     * by a byte[] or a Uri. If it's a byte[], directly save it
+     * into storage, otherwise load source data from the dataUri and then
+     * save it. If the data is an image, we may scale down it according
+     * to user preference.
+     *
+     * @param part The PDU part which contains data to be saved.
+     * @param uri The URI of the part.
+     * @param contentType The MIME type of the part.
+     * @param preOpenedFiles if not null, a map of preopened InputStreams for the parts.
+     * @throws MmsException Cannot find source data or error occurred
+     *         while saving the data.
+     */
+    private void persistData(PduPart part, Uri uri,
+            String contentType, HashMap<Uri, InputStream> preOpenedFiles)
+            throws MmsException {
+        OutputStream os = null;
+        InputStream is = null;
+        DrmConvertSession drmConvertSession = null;
+        Uri dataUri = null;
+        String path = null;
+
+        try {
+            byte[] data = part.getData();
+            if (ContentType.TEXT_PLAIN.equals(contentType)
+                    || ContentType.APP_SMIL.equals(contentType)
+                    || ContentType.TEXT_HTML.equals(contentType)) {
+                ContentValues cv = new ContentValues();
+                if (data == null) {
+                    data = new String("").getBytes(CharacterSets.DEFAULT_CHARSET_NAME);
+                }
+                cv.put(Telephony.Mms.Part.TEXT, new EncodedStringValue(data).getString());
+                if (mContentResolver.update(uri, cv, null, null) != 1) {
+                    throw new MmsException("unable to update " + uri.toString());
+                }
+            } else {
+                boolean isDrm = DownloadDrmHelper.isDrmConvertNeeded(contentType);
+                if (isDrm) {
+                    if (uri != null) {
+                        try (ParcelFileDescriptor pfd =
+                                mContentResolver.openFileDescriptor(uri, "r")) {
+                            if (pfd.getStatSize() > 0) {
+                                // we're not going to re-persist and re-encrypt an already
+                                // converted drm file
+                                return;
+                            }
+                        } catch (Exception e) {
+                            Log.e(TAG, "Can't get file info for: " + part.getDataUri(), e);
+                        }
+                    }
+                    // We haven't converted the file yet, start the conversion
+                    drmConvertSession = DrmConvertSession.open(mContext, contentType);
+                    if (drmConvertSession == null) {
+                        throw new MmsException("Mimetype " + contentType +
+                                " can not be converted.");
+                    }
+                }
+                // uri can look like:
+                // content://mms/part/98
+                os = mContentResolver.openOutputStream(uri);
+                if (data == null) {
+                    dataUri = part.getDataUri();
+                    if ((dataUri == null) || (dataUri.equals(uri))) {
+                        Log.w(TAG, "Can't find data for this part.");
+                        return;
+                    }
+                    // dataUri can look like:
+                    // content://com.google.android.gallery3d.provider/picasa/item/5720646660183715586
+                    if (preOpenedFiles != null && preOpenedFiles.containsKey(dataUri)) {
+                        is = preOpenedFiles.get(dataUri);
+                    }
+                    if (is == null) {
+                        is = mContentResolver.openInputStream(dataUri);
+                    }
+
+                    if (LOCAL_LOGV) {
+                        Log.v(TAG, "Saving data to: " + uri);
+                    }
+
+                    byte[] buffer = new byte[8192];
+                    for (int len = 0; (len = is.read(buffer)) != -1; ) {
+                        if (!isDrm) {
+                            os.write(buffer, 0, len);
+                        } else {
+                            byte[] convertedData = drmConvertSession.convert(buffer, len);
+                            if (convertedData != null) {
+                                os.write(convertedData, 0, convertedData.length);
+                            } else {
+                                throw new MmsException("Error converting drm data.");
+                            }
+                        }
+                    }
+                } else {
+                    if (LOCAL_LOGV) {
+                        Log.v(TAG, "Saving data to: " + uri);
+                    }
+                    if (!isDrm) {
+                        os.write(data);
+                    } else {
+                        dataUri = uri;
+                        byte[] convertedData = drmConvertSession.convert(data, data.length);
+                        if (convertedData != null) {
+                            os.write(convertedData, 0, convertedData.length);
+                        } else {
+                            throw new MmsException("Error converting drm data.");
+                        }
+                    }
+                }
+            }
+        } catch (FileNotFoundException e) {
+            Log.e(TAG, "Failed to open Input/Output stream.", e);
+            throw new MmsException(e);
+        } catch (IOException e) {
+            Log.e(TAG, "Failed to read/write data.", e);
+            throw new MmsException(e);
+        } finally {
+            if (os != null) {
+                try {
+                    os.close();
+                } catch (IOException e) {
+                    Log.e(TAG, "IOException while closing: " + os, e);
+                } // Ignore
+            }
+            if (is != null) {
+                try {
+                    is.close();
+                } catch (IOException e) {
+                    Log.e(TAG, "IOException while closing: " + is, e);
+                } // Ignore
+            }
+            if (drmConvertSession != null) {
+                drmConvertSession.close(path);
+
+                // Reset the permissions on the encrypted part file so everyone has only read
+                // permission.
+                File f = new File(path);
+                ContentValues values = new ContentValues(0);
+                SqliteWrapper.update(mContext, mContentResolver,
+                                     Uri.parse("content://mms/resetFilePerm/" + f.getName()),
+                                     values, null, null);
+            }
+        }
+    }
+
+    @UnsupportedAppUsage
+    private void updateAddress(
+            long msgId, int type, EncodedStringValue[] array) {
+        // Delete old address information and then insert new ones.
+        SqliteWrapper.delete(mContext, mContentResolver,
+                Uri.parse("content://mms/" + msgId + "/addr"),
+                Addr.TYPE + "=" + type, null);
+
+        persistAddress(msgId, type, array);
+    }
+
+    /**
+     * Update headers of a SendReq.
+     *
+     * @param uri The PDU which need to be updated.
+     * @param pdu New headers.
+     * @throws MmsException Bad URI or updating failed.
+     */
+    @UnsupportedAppUsage
+    public void updateHeaders(Uri uri, SendReq sendReq) {
+        synchronized(PDU_CACHE_INSTANCE) {
+            // If the cache item is getting updated, wait until it's done updating before
+            // purging it.
+            if (PDU_CACHE_INSTANCE.isUpdating(uri)) {
+                if (LOCAL_LOGV) {
+                    Log.v(TAG, "updateHeaders: " + uri + " blocked by isUpdating()");
+                }
+                try {
+                    PDU_CACHE_INSTANCE.wait();
+                } catch (InterruptedException e) {
+                    Log.e(TAG, "updateHeaders: ", e);
+                }
+            }
+        }
+        PDU_CACHE_INSTANCE.purge(uri);
+
+        ContentValues values = new ContentValues(10);
+        byte[] contentType = sendReq.getContentType();
+        if (contentType != null) {
+            values.put(Mms.CONTENT_TYPE, toIsoString(contentType));
+        }
+
+        long date = sendReq.getDate();
+        if (date != -1) {
+            values.put(Mms.DATE, date);
+        }
+
+        int deliveryReport = sendReq.getDeliveryReport();
+        if (deliveryReport != 0) {
+            values.put(Mms.DELIVERY_REPORT, deliveryReport);
+        }
+
+        long expiry = sendReq.getExpiry();
+        if (expiry != -1) {
+            values.put(Mms.EXPIRY, expiry);
+        }
+
+        byte[] msgClass = sendReq.getMessageClass();
+        if (msgClass != null) {
+            values.put(Mms.MESSAGE_CLASS, toIsoString(msgClass));
+        }
+
+        int priority = sendReq.getPriority();
+        if (priority != 0) {
+            values.put(Mms.PRIORITY, priority);
+        }
+
+        int readReport = sendReq.getReadReport();
+        if (readReport != 0) {
+            values.put(Mms.READ_REPORT, readReport);
+        }
+
+        byte[] transId = sendReq.getTransactionId();
+        if (transId != null) {
+            values.put(Mms.TRANSACTION_ID, toIsoString(transId));
+        }
+
+        EncodedStringValue subject = sendReq.getSubject();
+        if (subject != null) {
+            values.put(Mms.SUBJECT, toIsoString(subject.getTextString()));
+            values.put(Mms.SUBJECT_CHARSET, subject.getCharacterSet());
+        } else {
+            values.put(Mms.SUBJECT, "");
+        }
+
+        long messageSize = sendReq.getMessageSize();
+        if (messageSize > 0) {
+            values.put(Mms.MESSAGE_SIZE, messageSize);
+        }
+
+        PduHeaders headers = sendReq.getPduHeaders();
+        HashSet<String> recipients = new HashSet<String>();
+        for (int addrType : ADDRESS_FIELDS) {
+            EncodedStringValue[] array = null;
+            if (addrType == PduHeaders.FROM) {
+                EncodedStringValue v = headers.getEncodedStringValue(addrType);
+                if (v != null) {
+                    array = new EncodedStringValue[1];
+                    array[0] = v;
+                }
+            } else {
+                array = headers.getEncodedStringValues(addrType);
+            }
+
+            if (array != null) {
+                long msgId = ContentUris.parseId(uri);
+                updateAddress(msgId, addrType, array);
+                if (addrType == PduHeaders.TO) {
+                    for (EncodedStringValue v : array) {
+                        if (v != null) {
+                            recipients.add(v.getString());
+                        }
+                    }
+                }
+            }
+        }
+        if (!recipients.isEmpty()) {
+            long threadId = Threads.getOrCreateThreadId(mContext, recipients);
+            values.put(Mms.THREAD_ID, threadId);
+        }
+
+        SqliteWrapper.update(mContext, mContentResolver, uri, values, null, null);
+    }
+
+    private void updatePart(Uri uri, PduPart part, HashMap<Uri, InputStream> preOpenedFiles)
+            throws MmsException {
+        ContentValues values = new ContentValues(7);
+
+        int charset = part.getCharset();
+        if (charset != 0 ) {
+            values.put(Part.CHARSET, charset);
+        }
+
+        String contentType = null;
+        if (part.getContentType() != null) {
+            contentType = toIsoString(part.getContentType());
+            values.put(Part.CONTENT_TYPE, contentType);
+        } else {
+            throw new MmsException("MIME type of the part must be set.");
+        }
+
+        if (part.getFilename() != null) {
+            String fileName = new String(part.getFilename());
+            values.put(Part.FILENAME, fileName);
+        }
+
+        if (part.getName() != null) {
+            String name = new String(part.getName());
+            values.put(Part.NAME, name);
+        }
+
+        Object value = null;
+        if (part.getContentDisposition() != null) {
+            value = toIsoString(part.getContentDisposition());
+            values.put(Part.CONTENT_DISPOSITION, (String) value);
+        }
+
+        if (part.getContentId() != null) {
+            value = toIsoString(part.getContentId());
+            values.put(Part.CONTENT_ID, (String) value);
+        }
+
+        if (part.getContentLocation() != null) {
+            value = toIsoString(part.getContentLocation());
+            values.put(Part.CONTENT_LOCATION, (String) value);
+        }
+
+        SqliteWrapper.update(mContext, mContentResolver, uri, values, null, null);
+
+        // Only update the data when:
+        // 1. New binary data supplied or
+        // 2. The Uri of the part is different from the current one.
+        if ((part.getData() != null)
+                || (!uri.equals(part.getDataUri()))) {
+            persistData(part, uri, contentType, preOpenedFiles);
+        }
+    }
+
+    /**
+     * Update all parts of a PDU.
+     *
+     * @param uri The PDU which need to be updated.
+     * @param body New message body of the PDU.
+     * @param preOpenedFiles if not null, a map of preopened InputStreams for the parts.
+     * @throws MmsException Bad URI or updating failed.
+     */
+    @UnsupportedAppUsage
+    public void updateParts(Uri uri, PduBody body, HashMap<Uri, InputStream> preOpenedFiles)
+            throws MmsException {
+        try {
+            PduCacheEntry cacheEntry;
+            synchronized(PDU_CACHE_INSTANCE) {
+                if (PDU_CACHE_INSTANCE.isUpdating(uri)) {
+                    if (LOCAL_LOGV) {
+                        Log.v(TAG, "updateParts: " + uri + " blocked by isUpdating()");
+                    }
+                    try {
+                        PDU_CACHE_INSTANCE.wait();
+                    } catch (InterruptedException e) {
+                        Log.e(TAG, "updateParts: ", e);
+                    }
+                    cacheEntry = PDU_CACHE_INSTANCE.get(uri);
+                    if (cacheEntry != null) {
+                        ((MultimediaMessagePdu) cacheEntry.getPdu()).setBody(body);
+                    }
+                }
+                // Tell the cache to indicate to other callers that this item
+                // is currently being updated.
+                PDU_CACHE_INSTANCE.setUpdating(uri, true);
+            }
+
+            ArrayList<PduPart> toBeCreated = new ArrayList<PduPart>();
+            HashMap<Uri, PduPart> toBeUpdated = new HashMap<Uri, PduPart>();
+
+            int partsNum = body.getPartsNum();
+            StringBuilder filter = new StringBuilder().append('(');
+            for (int i = 0; i < partsNum; i++) {
+                PduPart part = body.getPart(i);
+                Uri partUri = part.getDataUri();
+                if ((partUri == null) || TextUtils.isEmpty(partUri.getAuthority())
+                        || !partUri.getAuthority().startsWith("mms")) {
+                    toBeCreated.add(part);
+                } else {
+                    toBeUpdated.put(partUri, part);
+
+                    // Don't use 'i > 0' to determine whether we should append
+                    // 'AND' since 'i = 0' may be skipped in another branch.
+                    if (filter.length() > 1) {
+                        filter.append(" AND ");
+                    }
+
+                    filter.append(Part._ID);
+                    filter.append("!=");
+                    DatabaseUtils.appendEscapedSQLString(filter, partUri.getLastPathSegment());
+                }
+            }
+            filter.append(')');
+
+            long msgId = ContentUris.parseId(uri);
+
+            // Remove the parts which doesn't exist anymore.
+            SqliteWrapper.delete(mContext, mContentResolver,
+                    Uri.parse(Mms.CONTENT_URI + "/" + msgId + "/part"),
+                    filter.length() > 2 ? filter.toString() : null, null);
+
+            // Create new parts which didn't exist before.
+            for (PduPart part : toBeCreated) {
+                persistPart(part, msgId, preOpenedFiles);
+            }
+
+            // Update the modified parts.
+            for (Map.Entry<Uri, PduPart> e : toBeUpdated.entrySet()) {
+                updatePart(e.getKey(), e.getValue(), preOpenedFiles);
+            }
+        } finally {
+            synchronized(PDU_CACHE_INSTANCE) {
+                PDU_CACHE_INSTANCE.setUpdating(uri, false);
+                PDU_CACHE_INSTANCE.notifyAll();
+            }
+        }
+    }
+
+    /**
+     * Persist a PDU object to specific location in the storage.
+     *
+     * @param pdu The PDU object to be stored.
+     * @param uri Where to store the given PDU object.
+     * @param createThreadId if true, this function may create a thread id for the recipients
+     * @param groupMmsEnabled if true, all of the recipients addressed in the PDU will be used
+     *  to create the associated thread. When false, only the sender will be used in finding or
+     *  creating the appropriate thread or conversation.
+     * @param preOpenedFiles if not null, a map of preopened InputStreams for the parts.
+     * @return A Uri which can be used to access the stored PDU.
+     */
+
+    @UnsupportedAppUsage
+    public Uri persist(GenericPdu pdu, Uri uri, boolean createThreadId, boolean groupMmsEnabled,
+            HashMap<Uri, InputStream> preOpenedFiles)
+            throws MmsException {
+        if (uri == null) {
+            throw new MmsException("Uri may not be null.");
+        }
+        long msgId = -1;
+        try {
+            msgId = ContentUris.parseId(uri);
+        } catch (NumberFormatException e) {
+            // the uri ends with "inbox" or something else like that
+        }
+        boolean existingUri = msgId != -1;
+
+        if (!existingUri && MESSAGE_BOX_MAP.get(uri) == null) {
+            throw new MmsException(
+                    "Bad destination, must be one of "
+                    + "content://mms/inbox, content://mms/sent, "
+                    + "content://mms/drafts, content://mms/outbox, "
+                    + "content://mms/temp.");
+        }
+        synchronized(PDU_CACHE_INSTANCE) {
+            // If the cache item is getting updated, wait until it's done updating before
+            // purging it.
+            if (PDU_CACHE_INSTANCE.isUpdating(uri)) {
+                if (LOCAL_LOGV) {
+                    Log.v(TAG, "persist: " + uri + " blocked by isUpdating()");
+                }
+                try {
+                    PDU_CACHE_INSTANCE.wait();
+                } catch (InterruptedException e) {
+                    Log.e(TAG, "persist1: ", e);
+                }
+            }
+        }
+        PDU_CACHE_INSTANCE.purge(uri);
+
+        PduHeaders header = pdu.getPduHeaders();
+        PduBody body = null;
+        ContentValues values = new ContentValues();
+        Set<Entry<Integer, String>> set;
+
+        set = ENCODED_STRING_COLUMN_NAME_MAP.entrySet();
+        for (Entry<Integer, String> e : set) {
+            int field = e.getKey();
+            EncodedStringValue encodedString = header.getEncodedStringValue(field);
+            if (encodedString != null) {
+                String charsetColumn = CHARSET_COLUMN_NAME_MAP.get(field);
+                values.put(e.getValue(), toIsoString(encodedString.getTextString()));
+                values.put(charsetColumn, encodedString.getCharacterSet());
+            }
+        }
+
+        set = TEXT_STRING_COLUMN_NAME_MAP.entrySet();
+        for (Entry<Integer, String> e : set){
+            byte[] text = header.getTextString(e.getKey());
+            if (text != null) {
+                values.put(e.getValue(), toIsoString(text));
+            }
+        }
+
+        set = OCTET_COLUMN_NAME_MAP.entrySet();
+        for (Entry<Integer, String> e : set){
+            int b = header.getOctet(e.getKey());
+            if (b != 0) {
+                values.put(e.getValue(), b);
+            }
+        }
+
+        set = LONG_COLUMN_NAME_MAP.entrySet();
+        for (Entry<Integer, String> e : set){
+            long l = header.getLongInteger(e.getKey());
+            if (l != -1L) {
+                values.put(e.getValue(), l);
+            }
+        }
+
+        HashMap<Integer, EncodedStringValue[]> addressMap =
+                new HashMap<Integer, EncodedStringValue[]>(ADDRESS_FIELDS.length);
+        // Save address information.
+        for (int addrType : ADDRESS_FIELDS) {
+            EncodedStringValue[] array = null;
+            if (addrType == PduHeaders.FROM) {
+                EncodedStringValue v = header.getEncodedStringValue(addrType);
+                if (v != null) {
+                    array = new EncodedStringValue[1];
+                    array[0] = v;
+                }
+            } else {
+                array = header.getEncodedStringValues(addrType);
+            }
+            addressMap.put(addrType, array);
+        }
+
+        HashSet<String> recipients = new HashSet<String>();
+        int msgType = pdu.getMessageType();
+        // Here we only allocate thread ID for M-Notification.ind,
+        // M-Retrieve.conf and M-Send.req.
+        // Some of other PDU types may be allocated a thread ID outside
+        // this scope.
+        if ((msgType == PduHeaders.MESSAGE_TYPE_NOTIFICATION_IND)
+                || (msgType == PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF)
+                || (msgType == PduHeaders.MESSAGE_TYPE_SEND_REQ)) {
+            switch (msgType) {
+                case PduHeaders.MESSAGE_TYPE_NOTIFICATION_IND:
+                case PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF:
+                    loadRecipients(PduHeaders.FROM, recipients, addressMap, false);
+
+                    // For received messages when group MMS is enabled, we want to associate this
+                    // message with the thread composed of all the recipients -- all but our own
+                    // number, that is. This includes the person who sent the
+                    // message or the FROM field (above) in addition to the other people the message
+                    // was addressed to or the TO field. Our own number is in that TO field and
+                    // we have to ignore it in loadRecipients.
+                    if (groupMmsEnabled) {
+                        loadRecipients(PduHeaders.TO, recipients, addressMap, true);
+
+                        // Also load any numbers in the CC field to address group messaging
+                        // compatibility issues with devices that place numbers in this field
+                        // for group messages.
+                        loadRecipients(PduHeaders.CC, recipients, addressMap, true);
+                    }
+                    break;
+                case PduHeaders.MESSAGE_TYPE_SEND_REQ:
+                    loadRecipients(PduHeaders.TO, recipients, addressMap, false);
+                    break;
+            }
+            long threadId = 0;
+            if (createThreadId && !recipients.isEmpty()) {
+                // Given all the recipients associated with this message, find (or create) the
+                // correct thread.
+                threadId = Threads.getOrCreateThreadId(mContext, recipients);
+            }
+            values.put(Mms.THREAD_ID, threadId);
+        }
+
+        // Save parts first to avoid inconsistent message is loaded
+        // while saving the parts.
+        long dummyId = System.currentTimeMillis(); // Dummy ID of the msg.
+
+        // Figure out if this PDU is a text-only message
+        boolean textOnly = true;
+
+        // Sum up the total message size
+        int messageSize = 0;
+
+        // Get body if the PDU is a RetrieveConf or SendReq.
+        if (pdu instanceof MultimediaMessagePdu) {
+            body = ((MultimediaMessagePdu) pdu).getBody();
+            // Start saving parts if necessary.
+            if (body != null) {
+                int partsNum = body.getPartsNum();
+                if (partsNum > 2) {
+                    // For a text-only message there will be two parts: 1-the SMIL, 2-the text.
+                    // Down a few lines below we're checking to make sure we've only got SMIL or
+                    // text. We also have to check then we don't have more than two parts.
+                    // Otherwise, a slideshow with two text slides would be marked as textOnly.
+                    textOnly = false;
+                }
+                for (int i = 0; i < partsNum; i++) {
+                    PduPart part = body.getPart(i);
+                    messageSize += part.getDataLength();
+                    persistPart(part, dummyId, preOpenedFiles);
+
+                    // If we've got anything besides text/plain or SMIL part, then we've got
+                    // an mms message with some other type of attachment.
+                    String contentType = getPartContentType(part);
+                    if (contentType != null && !ContentType.APP_SMIL.equals(contentType)
+                            && !ContentType.TEXT_PLAIN.equals(contentType)) {
+                        textOnly = false;
+                    }
+                }
+            }
+        }
+        // Record whether this mms message is a simple plain text or not. This is a hint for the
+        // UI.
+        values.put(Mms.TEXT_ONLY, textOnly ? 1 : 0);
+        // The message-size might already have been inserted when parsing the
+        // PDU header. If not, then we insert the message size as well.
+        if (values.getAsInteger(Mms.MESSAGE_SIZE) == null) {
+            values.put(Mms.MESSAGE_SIZE, messageSize);
+        }
+
+        Uri res = null;
+        if (existingUri) {
+            res = uri;
+            SqliteWrapper.update(mContext, mContentResolver, res, values, null, null);
+        } else {
+            res = SqliteWrapper.insert(mContext, mContentResolver, uri, values);
+            if (res == null) {
+                throw new MmsException("persist() failed: return null.");
+            }
+            // Get the real ID of the PDU and update all parts which were
+            // saved with the dummy ID.
+            msgId = ContentUris.parseId(res);
+        }
+
+        values = new ContentValues(1);
+        values.put(Part.MSG_ID, msgId);
+        SqliteWrapper.update(mContext, mContentResolver,
+                             Uri.parse("content://mms/" + dummyId + "/part"),
+                             values, null, null);
+        // We should return the longest URI of the persisted PDU, for
+        // example, if input URI is "content://mms/inbox" and the _ID of
+        // persisted PDU is '8', we should return "content://mms/inbox/8"
+        // instead of "content://mms/8".
+        // FIXME: Should the MmsProvider be responsible for this???
+        if (!existingUri) {
+            res = Uri.parse(uri + "/" + msgId);
+        }
+
+        // Save address information.
+        for (int addrType : ADDRESS_FIELDS) {
+            EncodedStringValue[] array = addressMap.get(addrType);
+            if (array != null) {
+                persistAddress(msgId, addrType, array);
+            }
+        }
+
+        return res;
+    }
+
+    /**
+     * For a given address type, extract the recipients from the headers.
+     *
+     * @param addressType can be PduHeaders.FROM, PduHeaders.TO or PduHeaders.CC
+     * @param recipients a HashSet that is loaded with the recipients from the FROM, TO or CC headers
+     * @param addressMap a HashMap of the addresses from the ADDRESS_FIELDS header
+     * @param excludeMyNumber if true, the number of this phone will be excluded from recipients
+     */
+    @UnsupportedAppUsage
+    private void loadRecipients(int addressType, HashSet<String> recipients,
+            HashMap<Integer, EncodedStringValue[]> addressMap, boolean excludeMyNumber) {
+        EncodedStringValue[] array = addressMap.get(addressType);
+        if (array == null) {
+            return;
+        }
+        // If the TO recipients is only a single address, then we can skip loadRecipients when
+        // we're excluding our own number because we know that address is our own.
+        if (excludeMyNumber && array.length == 1) {
+            return;
+        }
+        final SubscriptionManager subscriptionManager = SubscriptionManager.from(mContext);
+        final Set<String> myPhoneNumbers = new HashSet<String>();
+        if (excludeMyNumber) {
+            // Build a list of my phone numbers from the various sims.
+            for (int subid : subscriptionManager.getActiveSubscriptionIdList()) {
+                final String myNumber = mTelephonyManager.getLine1Number(subid);
+                if (myNumber != null) {
+                    myPhoneNumbers.add(myNumber);
+                }
+            }
+        }
+
+        for (EncodedStringValue v : array) {
+            if (v != null) {
+                final String number = v.getString();
+                if (excludeMyNumber) {
+                    for (final String myNumber : myPhoneNumbers) {
+                        if (!PhoneNumberUtils.compare(number, myNumber)
+                                && !recipients.contains(number)) {
+                            // Only add numbers which aren't my own number.
+                            recipients.add(number);
+                            break;
+                        }
+                    }
+                } else if (!recipients.contains(number)){
+                    recipients.add(number);
+                }
+            }
+        }
+    }
+
+    /**
+     * Move a PDU object from one location to another.
+     *
+     * @param from Specify the PDU object to be moved.
+     * @param to The destination location, should be one of the following:
+     *        "content://mms/inbox", "content://mms/sent",
+     *        "content://mms/drafts", "content://mms/outbox",
+     *        "content://mms/trash".
+     * @return New Uri of the moved PDU.
+     * @throws MmsException Error occurred while moving the message.
+     */
+    @UnsupportedAppUsage
+    public Uri move(Uri from, Uri to) throws MmsException {
+        // Check whether the 'msgId' has been assigned a valid value.
+        long msgId = ContentUris.parseId(from);
+        if (msgId == -1L) {
+            throw new MmsException("Error! ID of the message: -1.");
+        }
+
+        // Get corresponding int value of destination box.
+        Integer msgBox = MESSAGE_BOX_MAP.get(to);
+        if (msgBox == null) {
+            throw new MmsException(
+                    "Bad destination, must be one of "
+                    + "content://mms/inbox, content://mms/sent, "
+                    + "content://mms/drafts, content://mms/outbox, "
+                    + "content://mms/temp.");
+        }
+
+        ContentValues values = new ContentValues(1);
+        values.put(Mms.MESSAGE_BOX, msgBox);
+        SqliteWrapper.update(mContext, mContentResolver, from, values, null, null);
+        return ContentUris.withAppendedId(to, msgId);
+    }
+
+    /**
+     * Wrap a byte[] into a String.
+     */
+    @UnsupportedAppUsage
+    public static String toIsoString(byte[] bytes) {
+        try {
+            return new String(bytes, CharacterSets.MIMENAME_ISO_8859_1);
+        } catch (UnsupportedEncodingException e) {
+            // Impossible to reach here!
+            Log.e(TAG, "ISO_8859_1 must be supported!", e);
+            return "";
+        }
+    }
+
+    /**
+     * Unpack a given String into a byte[].
+     */
+    @UnsupportedAppUsage
+    public static byte[] getBytes(String data) {
+        try {
+            return data.getBytes(CharacterSets.MIMENAME_ISO_8859_1);
+        } catch (UnsupportedEncodingException e) {
+            // Impossible to reach here!
+            Log.e(TAG, "ISO_8859_1 must be supported!", e);
+            return new byte[0];
+        }
+    }
+
+    /**
+     * Remove all objects in the temporary path.
+     */
+    public void release() {
+        Uri uri = Uri.parse(TEMPORARY_DRM_OBJECT_URI);
+        SqliteWrapper.delete(mContext, mContentResolver, uri, null, null);
+    }
+
+    /**
+     * Find all messages to be sent or downloaded before certain time.
+     */
+    @UnsupportedAppUsage
+    public Cursor getPendingMessages(long dueTime) {
+        Uri.Builder uriBuilder = PendingMessages.CONTENT_URI.buildUpon();
+        uriBuilder.appendQueryParameter("protocol", "mms");
+
+        String selection = PendingMessages.ERROR_TYPE + " < ?"
+                + " AND " + PendingMessages.DUE_TIME + " <= ?";
+
+        String[] selectionArgs = new String[] {
+                String.valueOf(MmsSms.ERR_TYPE_GENERIC_PERMANENT),
+                String.valueOf(dueTime)
+        };
+
+        return SqliteWrapper.query(mContext, mContentResolver,
+                uriBuilder.build(), null, selection, selectionArgs,
+                PendingMessages.DUE_TIME);
+    }
+}
diff --git a/telephony/java/com/google/android/mms/pdu/QuotedPrintable.java b/telephony/java/com/google/android/mms/pdu/QuotedPrintable.java
new file mode 100644
index 0000000..9d6535c
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/QuotedPrintable.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import java.io.ByteArrayOutputStream;
+
+public class QuotedPrintable {
+    private static byte ESCAPE_CHAR = '=';
+
+    /**
+     * Decodes an array quoted-printable characters into an array of original bytes.
+     * Escaped characters are converted back to their original representation.
+     *
+     * <p>
+     * This function implements a subset of
+     * quoted-printable encoding specification (rule #1 and rule #2)
+     * as defined in RFC 1521.
+     * </p>
+     *
+     * @param bytes array of quoted-printable characters
+     * @return array of original bytes,
+     *         null if quoted-printable decoding is unsuccessful.
+     */
+    @UnsupportedAppUsage
+    public static final byte[] decodeQuotedPrintable(byte[] bytes) {
+        if (bytes == null) {
+            return null;
+        }
+        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
+        for (int i = 0; i < bytes.length; i++) {
+            int b = bytes[i];
+            if (b == ESCAPE_CHAR) {
+                try {
+                    if('\r' == (char)bytes[i + 1] &&
+                            '\n' == (char)bytes[i + 2]) {
+                        i += 2;
+                        continue;
+                    }
+                    int u = Character.digit((char) bytes[++i], 16);
+                    int l = Character.digit((char) bytes[++i], 16);
+                    if (u == -1 || l == -1) {
+                        return null;
+                    }
+                    buffer.write((char) ((u << 4) + l));
+                } catch (ArrayIndexOutOfBoundsException e) {
+                    return null;
+                }
+            } else {
+                buffer.write(b);
+            }
+        }
+        return buffer.toByteArray();
+    }
+}
diff --git a/telephony/java/com/google/android/mms/pdu/ReadOrigInd.java b/telephony/java/com/google/android/mms/pdu/ReadOrigInd.java
new file mode 100644
index 0000000..e38c62d
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/ReadOrigInd.java
@@ -0,0 +1,158 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import com.google.android.mms.InvalidHeaderValueException;
+
+public class ReadOrigInd extends GenericPdu {
+    /**
+     * Empty constructor.
+     * Since the Pdu corresponding to this class is constructed
+     * by the Proxy-Relay server, this class is only instantiated
+     * by the Pdu Parser.
+     *
+     * @throws InvalidHeaderValueException if error occurs.
+     */
+    public ReadOrigInd() throws InvalidHeaderValueException {
+        super();
+        setMessageType(PduHeaders.MESSAGE_TYPE_READ_ORIG_IND);
+    }
+
+    /**
+     * Constructor with given headers.
+     *
+     * @param headers Headers for this PDU.
+     */
+    @UnsupportedAppUsage
+    ReadOrigInd(PduHeaders headers) {
+        super(headers);
+    }
+
+    /**
+     * Get Date value.
+     *
+     * @return the value
+     */
+    public long getDate() {
+        return mPduHeaders.getLongInteger(PduHeaders.DATE);
+    }
+
+    /**
+     * Set Date value.
+     *
+     * @param value the value
+     */
+    public void setDate(long value) {
+        mPduHeaders.setLongInteger(value, PduHeaders.DATE);
+    }
+
+    /**
+     * Get From value.
+     * From-value = Value-length
+     *      (Address-present-token Encoded-string-value | Insert-address-token)
+     *
+     * @return the value
+     */
+    public EncodedStringValue getFrom() {
+       return mPduHeaders.getEncodedStringValue(PduHeaders.FROM);
+    }
+
+    /**
+     * Set From value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    public void setFrom(EncodedStringValue value) {
+        mPduHeaders.setEncodedStringValue(value, PduHeaders.FROM);
+    }
+
+    /**
+     * Get Message-ID value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public byte[] getMessageId() {
+        return mPduHeaders.getTextString(PduHeaders.MESSAGE_ID);
+    }
+
+    /**
+     * Set Message-ID value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    public void setMessageId(byte[] value) {
+        mPduHeaders.setTextString(value, PduHeaders.MESSAGE_ID);
+    }
+
+    /**
+     * Get X-MMS-Read-status value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public int getReadStatus() {
+        return mPduHeaders.getOctet(PduHeaders.READ_STATUS);
+    }
+
+    /**
+     * Set X-MMS-Read-status value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     */
+    public void setReadStatus(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.READ_STATUS);
+    }
+
+    /**
+     * Get To value.
+     *
+     * @return the value
+     */
+    public EncodedStringValue[] getTo() {
+        return mPduHeaders.getEncodedStringValues(PduHeaders.TO);
+    }
+
+    /**
+     * Set To value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    public void setTo(EncodedStringValue[] value) {
+        mPduHeaders.setEncodedStringValues(value, PduHeaders.TO);
+    }
+
+    /*
+     * Optional, not supported header fields:
+     *
+     *     public byte[] getApplicId() {return null;}
+     *     public void setApplicId(byte[] value) {}
+     *
+     *     public byte[] getAuxApplicId() {return null;}
+     *     public void getAuxApplicId(byte[] value) {}
+     *
+     *     public byte[] getReplyApplicId() {return 0x00;}
+     *     public void setReplyApplicId(byte[] value) {}
+     */
+}
diff --git a/telephony/java/com/google/android/mms/pdu/ReadRecInd.java b/telephony/java/com/google/android/mms/pdu/ReadRecInd.java
new file mode 100644
index 0000000..9696bc2
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/ReadRecInd.java
@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import com.google.android.mms.InvalidHeaderValueException;
+
+public class ReadRecInd extends GenericPdu {
+    /**
+     * Constructor, used when composing a M-ReadRec.ind pdu.
+     *
+     * @param from the from value
+     * @param messageId the message ID value
+     * @param mmsVersion current viersion of mms
+     * @param readStatus the read status value
+     * @param to the to value
+     * @throws InvalidHeaderValueException if parameters are invalid.
+     *         NullPointerException if messageId or to is null.
+     */
+    @UnsupportedAppUsage
+    public ReadRecInd(EncodedStringValue from,
+                      byte[] messageId,
+                      int mmsVersion,
+                      int readStatus,
+                      EncodedStringValue[] to) throws InvalidHeaderValueException {
+        super();
+        setMessageType(PduHeaders.MESSAGE_TYPE_READ_REC_IND);
+        setFrom(from);
+        setMessageId(messageId);
+        setMmsVersion(mmsVersion);
+        setTo(to);
+        setReadStatus(readStatus);
+    }
+
+    /**
+     * Constructor with given headers.
+     *
+     * @param headers Headers for this PDU.
+     */
+    @UnsupportedAppUsage
+    ReadRecInd(PduHeaders headers) {
+        super(headers);
+    }
+
+    /**
+     * Get Date value.
+     *
+     * @return the value
+     */
+    public long getDate() {
+        return mPduHeaders.getLongInteger(PduHeaders.DATE);
+    }
+
+    /**
+     * Set Date value.
+     *
+     * @param value the value
+     */
+    @UnsupportedAppUsage
+    public void setDate(long value) {
+        mPduHeaders.setLongInteger(value, PduHeaders.DATE);
+    }
+
+    /**
+     * Get Message-ID value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public byte[] getMessageId() {
+        return mPduHeaders.getTextString(PduHeaders.MESSAGE_ID);
+    }
+
+    /**
+     * Set Message-ID value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    public void setMessageId(byte[] value) {
+        mPduHeaders.setTextString(value, PduHeaders.MESSAGE_ID);
+    }
+
+    /**
+     * Get To value.
+     *
+     * @return the value
+     */
+    public EncodedStringValue[] getTo() {
+        return mPduHeaders.getEncodedStringValues(PduHeaders.TO);
+    }
+
+    /**
+     * Set To value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    public void setTo(EncodedStringValue[] value) {
+        mPduHeaders.setEncodedStringValues(value, PduHeaders.TO);
+    }
+
+    /**
+     * Get X-MMS-Read-status value.
+     *
+     * @return the value
+     */
+    public int getReadStatus() {
+        return mPduHeaders.getOctet(PduHeaders.READ_STATUS);
+    }
+
+    /**
+     * Set X-MMS-Read-status value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     */
+    public void setReadStatus(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.READ_STATUS);
+    }
+
+    /*
+     * Optional, not supported header fields:
+     *
+     *     public byte[] getApplicId() {return null;}
+     *     public void setApplicId(byte[] value) {}
+     *
+     *     public byte[] getAuxApplicId() {return null;}
+     *     public void getAuxApplicId(byte[] value) {}
+     *
+     *     public byte[] getReplyApplicId() {return 0x00;}
+     *     public void setReplyApplicId(byte[] value) {}
+     */
+}
diff --git a/telephony/java/com/google/android/mms/pdu/RetrieveConf.java b/telephony/java/com/google/android/mms/pdu/RetrieveConf.java
new file mode 100644
index 0000000..03755af
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/RetrieveConf.java
@@ -0,0 +1,324 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import com.google.android.mms.InvalidHeaderValueException;
+
+/**
+ * M-Retrieve.conf Pdu.
+ */
+public class RetrieveConf extends MultimediaMessagePdu {
+    /**
+     * Empty constructor.
+     * Since the Pdu corresponding to this class is constructed
+     * by the Proxy-Relay server, this class is only instantiated
+     * by the Pdu Parser.
+     *
+     * @throws InvalidHeaderValueException if error occurs.
+     */
+    @UnsupportedAppUsage
+    public RetrieveConf() throws InvalidHeaderValueException {
+        super();
+        setMessageType(PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF);
+    }
+
+    /**
+     * Constructor with given headers.
+     *
+     * @param headers Headers for this PDU.
+     */
+    RetrieveConf(PduHeaders headers) {
+        super(headers);
+    }
+
+    /**
+     * Constructor with given headers and body
+     *
+     * @param headers Headers for this PDU.
+     * @param body Body of this PDu.
+     */
+    @UnsupportedAppUsage
+    RetrieveConf(PduHeaders headers, PduBody body) {
+        super(headers, body);
+    }
+
+    /**
+     * Get CC value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public EncodedStringValue[] getCc() {
+        return mPduHeaders.getEncodedStringValues(PduHeaders.CC);
+    }
+
+    /**
+     * Add a "CC" value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void addCc(EncodedStringValue value) {
+        mPduHeaders.appendEncodedStringValue(value, PduHeaders.CC);
+    }
+
+    /**
+     * Get Content-type value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public byte[] getContentType() {
+        return mPduHeaders.getTextString(PduHeaders.CONTENT_TYPE);
+    }
+
+    /**
+     * Set Content-type value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void setContentType(byte[] value) {
+        mPduHeaders.setTextString(value, PduHeaders.CONTENT_TYPE);
+    }
+
+    /**
+     * Get X-Mms-Delivery-Report value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public int getDeliveryReport() {
+        return mPduHeaders.getOctet(PduHeaders.DELIVERY_REPORT);
+    }
+
+    /**
+     * Set X-Mms-Delivery-Report value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     */
+    @UnsupportedAppUsage
+    public void setDeliveryReport(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.DELIVERY_REPORT);
+    }
+
+    /**
+     * Get From value.
+     * From-value = Value-length
+     *      (Address-present-token Encoded-string-value | Insert-address-token)
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public EncodedStringValue getFrom() {
+       return mPduHeaders.getEncodedStringValue(PduHeaders.FROM);
+    }
+
+    /**
+     * Set From value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void setFrom(EncodedStringValue value) {
+        mPduHeaders.setEncodedStringValue(value, PduHeaders.FROM);
+    }
+
+    /**
+     * Get X-Mms-Message-Class value.
+     * Message-class-value = Class-identifier | Token-text
+     * Class-identifier = Personal | Advertisement | Informational | Auto
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public byte[] getMessageClass() {
+        return mPduHeaders.getTextString(PduHeaders.MESSAGE_CLASS);
+    }
+
+    /**
+     * Set X-Mms-Message-Class value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void setMessageClass(byte[] value) {
+        mPduHeaders.setTextString(value, PduHeaders.MESSAGE_CLASS);
+    }
+
+    /**
+     * Get Message-ID value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public byte[] getMessageId() {
+        return mPduHeaders.getTextString(PduHeaders.MESSAGE_ID);
+    }
+
+    /**
+     * Set Message-ID value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void setMessageId(byte[] value) {
+        mPduHeaders.setTextString(value, PduHeaders.MESSAGE_ID);
+    }
+
+    /**
+     * Get X-Mms-Read-Report value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public int getReadReport() {
+        return mPduHeaders.getOctet(PduHeaders.READ_REPORT);
+    }
+
+    /**
+     * Set X-Mms-Read-Report value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     */
+    @UnsupportedAppUsage
+    public void setReadReport(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.READ_REPORT);
+    }
+
+    /**
+     * Get X-Mms-Retrieve-Status value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public int getRetrieveStatus() {
+        return mPduHeaders.getOctet(PduHeaders.RETRIEVE_STATUS);
+    }
+
+    /**
+     * Set X-Mms-Retrieve-Status value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     */
+    @UnsupportedAppUsage
+    public void setRetrieveStatus(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.RETRIEVE_STATUS);
+    }
+
+    /**
+     * Get X-Mms-Retrieve-Text value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public EncodedStringValue getRetrieveText() {
+        return mPduHeaders.getEncodedStringValue(PduHeaders.RETRIEVE_TEXT);
+    }
+
+    /**
+     * Set X-Mms-Retrieve-Text value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void setRetrieveText(EncodedStringValue value) {
+        mPduHeaders.setEncodedStringValue(value, PduHeaders.RETRIEVE_TEXT);
+    }
+
+    /**
+     * Get X-Mms-Transaction-Id.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public byte[] getTransactionId() {
+        return mPduHeaders.getTextString(PduHeaders.TRANSACTION_ID);
+    }
+
+    /**
+     * Set X-Mms-Transaction-Id.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void setTransactionId(byte[] value) {
+        mPduHeaders.setTextString(value, PduHeaders.TRANSACTION_ID);
+    }
+
+    /*
+     * Optional, not supported header fields:
+     *
+     *     public byte[] getApplicId() {return null;}
+     *     public void setApplicId(byte[] value) {}
+     *
+     *     public byte[] getAuxApplicId() {return null;}
+     *     public void getAuxApplicId(byte[] value) {}
+     *
+     *     public byte getContentClass() {return 0x00;}
+     *     public void setApplicId(byte value) {}
+     *
+     *     public byte getDrmContent() {return 0x00;}
+     *     public void setDrmContent(byte value) {}
+     *
+     *     public byte getDistributionIndicator() {return 0x00;}
+     *     public void setDistributionIndicator(byte value) {}
+     *
+     *     public PreviouslySentByValue getPreviouslySentBy() {return null;}
+     *     public void setPreviouslySentBy(PreviouslySentByValue value) {}
+     *
+     *     public PreviouslySentDateValue getPreviouslySentDate() {}
+     *     public void setPreviouslySentDate(PreviouslySentDateValue value) {}
+     *
+     *     public MmFlagsValue getMmFlags() {return null;}
+     *     public void setMmFlags(MmFlagsValue value) {}
+     *
+     *     public MmStateValue getMmState() {return null;}
+     *     public void getMmState(MmStateValue value) {}
+     *
+     *     public byte[] getReplaceId() {return 0x00;}
+     *     public void setReplaceId(byte[] value) {}
+     *
+     *     public byte[] getReplyApplicId() {return 0x00;}
+     *     public void setReplyApplicId(byte[] value) {}
+     *
+     *     public byte getReplyCharging() {return 0x00;}
+     *     public void setReplyCharging(byte value) {}
+     *
+     *     public byte getReplyChargingDeadline() {return 0x00;}
+     *     public void setReplyChargingDeadline(byte value) {}
+     *
+     *     public byte[] getReplyChargingId() {return 0x00;}
+     *     public void setReplyChargingId(byte[] value) {}
+     *
+     *     public long getReplyChargingSize() {return 0;}
+     *     public void setReplyChargingSize(long value) {}
+     */
+}
diff --git a/telephony/java/com/google/android/mms/pdu/SendConf.java b/telephony/java/com/google/android/mms/pdu/SendConf.java
new file mode 100644
index 0000000..b859827
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/SendConf.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import com.google.android.mms.InvalidHeaderValueException;
+
+public class SendConf extends GenericPdu {
+    /**
+     * Empty constructor.
+     * Since the Pdu corresponding to this class is constructed
+     * by the Proxy-Relay server, this class is only instantiated
+     * by the Pdu Parser.
+     *
+     * @throws InvalidHeaderValueException if error occurs.
+     */
+    @UnsupportedAppUsage
+    public SendConf() throws InvalidHeaderValueException {
+        super();
+        setMessageType(PduHeaders.MESSAGE_TYPE_SEND_CONF);
+    }
+
+    /**
+     * Constructor with given headers.
+     *
+     * @param headers Headers for this PDU.
+     */
+    @UnsupportedAppUsage
+    SendConf(PduHeaders headers) {
+        super(headers);
+    }
+
+    /**
+     * Get Message-ID value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public byte[] getMessageId() {
+        return mPduHeaders.getTextString(PduHeaders.MESSAGE_ID);
+    }
+
+    /**
+     * Set Message-ID value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    public void setMessageId(byte[] value) {
+        mPduHeaders.setTextString(value, PduHeaders.MESSAGE_ID);
+    }
+
+    /**
+     * Get X-Mms-Response-Status.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public int getResponseStatus() {
+        return mPduHeaders.getOctet(PduHeaders.RESPONSE_STATUS);
+    }
+
+    /**
+     * Set X-Mms-Response-Status.
+     *
+     * @param value the values
+     * @throws InvalidHeaderValueException if the value is invalid.
+     */
+    public void setResponseStatus(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.RESPONSE_STATUS);
+    }
+
+    /**
+     * Get X-Mms-Transaction-Id field value.
+     *
+     * @return the X-Mms-Report-Allowed value
+     */
+    @UnsupportedAppUsage
+    public byte[] getTransactionId() {
+        return mPduHeaders.getTextString(PduHeaders.TRANSACTION_ID);
+    }
+
+    /**
+     * Set X-Mms-Transaction-Id field value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    public void setTransactionId(byte[] value) {
+            mPduHeaders.setTextString(value, PduHeaders.TRANSACTION_ID);
+    }
+
+    /*
+     * Optional, not supported header fields:
+     *
+     *    public byte[] getContentLocation() {return null;}
+     *    public void setContentLocation(byte[] value) {}
+     *
+     *    public EncodedStringValue getResponseText() {return null;}
+     *    public void setResponseText(EncodedStringValue value) {}
+     *
+     *    public byte getStoreStatus() {return 0x00;}
+     *    public void setStoreStatus(byte value) {}
+     *
+     *    public byte[] getStoreStatusText() {return null;}
+     *    public void setStoreStatusText(byte[] value) {}
+     */
+}
diff --git a/telephony/java/com/google/android/mms/pdu/SendReq.java b/telephony/java/com/google/android/mms/pdu/SendReq.java
new file mode 100644
index 0000000..c1b7f93
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/SendReq.java
@@ -0,0 +1,370 @@
+/*
+ * Copyright (C) 2007-2008 Esmertec AG.
+ * Copyright (C) 2007-2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.pdu;
+
+import android.util.Log;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import com.google.android.mms.InvalidHeaderValueException;
+
+public class SendReq extends MultimediaMessagePdu {
+    private static final String TAG = "SendReq";
+
+    @UnsupportedAppUsage
+    public SendReq() {
+        super();
+
+        try {
+            setMessageType(PduHeaders.MESSAGE_TYPE_SEND_REQ);
+            setMmsVersion(PduHeaders.CURRENT_MMS_VERSION);
+            // FIXME: Content-type must be decided according to whether
+            // SMIL part present.
+            setContentType("application/vnd.wap.multipart.related".getBytes());
+            setFrom(new EncodedStringValue(PduHeaders.FROM_INSERT_ADDRESS_TOKEN_STR.getBytes()));
+            setTransactionId(generateTransactionId());
+        } catch (InvalidHeaderValueException e) {
+            // Impossible to reach here since all headers we set above are valid.
+            Log.e(TAG, "Unexpected InvalidHeaderValueException.", e);
+            throw new RuntimeException(e);
+        }
+    }
+
+    private byte[] generateTransactionId() {
+        String transactionId = "T" + Long.toHexString(System.currentTimeMillis());
+        return transactionId.getBytes();
+    }
+
+    /**
+     * Constructor, used when composing a M-Send.req pdu.
+     *
+     * @param contentType the content type value
+     * @param from the from value
+     * @param mmsVersion current viersion of mms
+     * @param transactionId the transaction-id value
+     * @throws InvalidHeaderValueException if parameters are invalid.
+     *         NullPointerException if contentType, form or transactionId is null.
+     */
+    public SendReq(byte[] contentType,
+                   EncodedStringValue from,
+                   int mmsVersion,
+                   byte[] transactionId) throws InvalidHeaderValueException {
+        super();
+        setMessageType(PduHeaders.MESSAGE_TYPE_SEND_REQ);
+        setContentType(contentType);
+        setFrom(from);
+        setMmsVersion(mmsVersion);
+        setTransactionId(transactionId);
+    }
+
+    /**
+     * Constructor with given headers.
+     *
+     * @param headers Headers for this PDU.
+     */
+    SendReq(PduHeaders headers) {
+        super(headers);
+    }
+
+    /**
+     * Constructor with given headers and body
+     *
+     * @param headers Headers for this PDU.
+     * @param body Body of this PDu.
+     */
+    @UnsupportedAppUsage
+    SendReq(PduHeaders headers, PduBody body) {
+        super(headers, body);
+    }
+
+    /**
+     * Get Bcc value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public EncodedStringValue[] getBcc() {
+        return mPduHeaders.getEncodedStringValues(PduHeaders.BCC);
+    }
+
+    /**
+     * Add a "BCC" value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void addBcc(EncodedStringValue value) {
+        mPduHeaders.appendEncodedStringValue(value, PduHeaders.BCC);
+    }
+
+    /**
+     * Set "BCC" value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void setBcc(EncodedStringValue[] value) {
+        mPduHeaders.setEncodedStringValues(value, PduHeaders.BCC);
+    }
+
+    /**
+     * Get CC value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public EncodedStringValue[] getCc() {
+        return mPduHeaders.getEncodedStringValues(PduHeaders.CC);
+    }
+
+    /**
+     * Add a "CC" value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void addCc(EncodedStringValue value) {
+        mPduHeaders.appendEncodedStringValue(value, PduHeaders.CC);
+    }
+
+    /**
+     * Set "CC" value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void setCc(EncodedStringValue[] value) {
+        mPduHeaders.setEncodedStringValues(value, PduHeaders.CC);
+    }
+
+    /**
+     * Get Content-type value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public byte[] getContentType() {
+        return mPduHeaders.getTextString(PduHeaders.CONTENT_TYPE);
+    }
+
+    /**
+     * Set Content-type value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void setContentType(byte[] value) {
+        mPduHeaders.setTextString(value, PduHeaders.CONTENT_TYPE);
+    }
+
+    /**
+     * Get X-Mms-Delivery-Report value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public int getDeliveryReport() {
+        return mPduHeaders.getOctet(PduHeaders.DELIVERY_REPORT);
+    }
+
+    /**
+     * Set X-Mms-Delivery-Report value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     */
+    @UnsupportedAppUsage
+    public void setDeliveryReport(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.DELIVERY_REPORT);
+    }
+
+    /**
+     * Get X-Mms-Expiry value.
+     *
+     * Expiry-value = Value-length
+     *      (Absolute-token Date-value | Relative-token Delta-seconds-value)
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public long getExpiry() {
+        return mPduHeaders.getLongInteger(PduHeaders.EXPIRY);
+    }
+
+    /**
+     * Set X-Mms-Expiry value.
+     *
+     * @param value the value
+     */
+    @UnsupportedAppUsage
+    public void setExpiry(long value) {
+        mPduHeaders.setLongInteger(value, PduHeaders.EXPIRY);
+    }
+
+    /**
+     * Get X-Mms-MessageSize value.
+     *
+     * Expiry-value = size of message
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public long getMessageSize() {
+        return mPduHeaders.getLongInteger(PduHeaders.MESSAGE_SIZE);
+    }
+
+    /**
+     * Set X-Mms-MessageSize value.
+     *
+     * @param value the value
+     */
+    @UnsupportedAppUsage
+    public void setMessageSize(long value) {
+        mPduHeaders.setLongInteger(value, PduHeaders.MESSAGE_SIZE);
+    }
+
+    /**
+     * Get X-Mms-Message-Class value.
+     * Message-class-value = Class-identifier | Token-text
+     * Class-identifier = Personal | Advertisement | Informational | Auto
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public byte[] getMessageClass() {
+        return mPduHeaders.getTextString(PduHeaders.MESSAGE_CLASS);
+    }
+
+    /**
+     * Set X-Mms-Message-Class value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void setMessageClass(byte[] value) {
+        mPduHeaders.setTextString(value, PduHeaders.MESSAGE_CLASS);
+    }
+
+    /**
+     * Get X-Mms-Read-Report value.
+     *
+     * @return the value
+     */
+    @UnsupportedAppUsage
+    public int getReadReport() {
+        return mPduHeaders.getOctet(PduHeaders.READ_REPORT);
+    }
+
+    /**
+     * Set X-Mms-Read-Report value.
+     *
+     * @param value the value
+     * @throws InvalidHeaderValueException if the value is invalid.
+     */
+    @UnsupportedAppUsage
+    public void setReadReport(int value) throws InvalidHeaderValueException {
+        mPduHeaders.setOctet(value, PduHeaders.READ_REPORT);
+    }
+
+    /**
+     * Set "To" value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void setTo(EncodedStringValue[] value) {
+        mPduHeaders.setEncodedStringValues(value, PduHeaders.TO);
+    }
+
+    /**
+     * Get X-Mms-Transaction-Id field value.
+     *
+     * @return the X-Mms-Report-Allowed value
+     */
+    @UnsupportedAppUsage
+    public byte[] getTransactionId() {
+        return mPduHeaders.getTextString(PduHeaders.TRANSACTION_ID);
+    }
+
+    /**
+     * Set X-Mms-Transaction-Id field value.
+     *
+     * @param value the value
+     * @throws NullPointerException if the value is null.
+     */
+    @UnsupportedAppUsage
+    public void setTransactionId(byte[] value) {
+        mPduHeaders.setTextString(value, PduHeaders.TRANSACTION_ID);
+    }
+
+    /*
+     * Optional, not supported header fields:
+     *
+     *     public byte getAdaptationAllowed() {return 0};
+     *     public void setAdaptationAllowed(btye value) {};
+     *
+     *     public byte[] getApplicId() {return null;}
+     *     public void setApplicId(byte[] value) {}
+     *
+     *     public byte[] getAuxApplicId() {return null;}
+     *     public void getAuxApplicId(byte[] value) {}
+     *
+     *     public byte getContentClass() {return 0x00;}
+     *     public void setApplicId(byte value) {}
+     *
+     *     public long getDeliveryTime() {return 0};
+     *     public void setDeliveryTime(long value) {};
+     *
+     *     public byte getDrmContent() {return 0x00;}
+     *     public void setDrmContent(byte value) {}
+     *
+     *     public MmFlagsValue getMmFlags() {return null;}
+     *     public void setMmFlags(MmFlagsValue value) {}
+     *
+     *     public MmStateValue getMmState() {return null;}
+     *     public void getMmState(MmStateValue value) {}
+     *
+     *     public byte[] getReplyApplicId() {return 0x00;}
+     *     public void setReplyApplicId(byte[] value) {}
+     *
+     *     public byte getReplyCharging() {return 0x00;}
+     *     public void setReplyCharging(byte value) {}
+     *
+     *     public byte getReplyChargingDeadline() {return 0x00;}
+     *     public void setReplyChargingDeadline(byte value) {}
+     *
+     *     public byte[] getReplyChargingId() {return 0x00;}
+     *     public void setReplyChargingId(byte[] value) {}
+     *
+     *     public long getReplyChargingSize() {return 0;}
+     *     public void setReplyChargingSize(long value) {}
+     *
+     *     public byte[] getReplyApplicId() {return 0x00;}
+     *     public void setReplyApplicId(byte[] value) {}
+     *
+     *     public byte getStore() {return 0x00;}
+     *     public void setStore(byte value) {}
+     */
+}
diff --git a/telephony/java/com/google/android/mms/pdu/package.html b/telephony/java/com/google/android/mms/pdu/package.html
new file mode 100755
index 0000000..c9f96a6
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/package.html
@@ -0,0 +1,5 @@
+<body>
+
+{@hide}
+
+</body>
diff --git a/telephony/java/com/google/android/mms/util/AbstractCache.java b/telephony/java/com/google/android/mms/util/AbstractCache.java
new file mode 100644
index 0000000..ab5d48a
--- /dev/null
+++ b/telephony/java/com/google/android/mms/util/AbstractCache.java
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2008 Esmertec AG.
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.util;
+
+import android.util.Log;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import java.util.HashMap;
+
+public abstract class AbstractCache<K, V> {
+    private static final String TAG = "AbstractCache";
+    private static final boolean DEBUG = false;
+    private static final boolean LOCAL_LOGV = false;
+
+    private static final int MAX_CACHED_ITEMS  = 500;
+
+    private final HashMap<K, CacheEntry<V>> mCacheMap;
+
+    @UnsupportedAppUsage
+    protected AbstractCache() {
+        mCacheMap = new HashMap<K, CacheEntry<V>>();
+    }
+
+    @UnsupportedAppUsage
+    public boolean put(K key, V value) {
+        if (LOCAL_LOGV) {
+            Log.v(TAG, "Trying to put " + key + " into cache.");
+        }
+
+        if (mCacheMap.size() >= MAX_CACHED_ITEMS) {
+            // TODO Should remove the oldest or least hit cached entry
+            // and then cache the new one.
+            if (LOCAL_LOGV) {
+                Log.v(TAG, "Failed! size limitation reached.");
+            }
+            return false;
+        }
+
+        if (key != null) {
+            CacheEntry<V> cacheEntry = new CacheEntry<V>();
+            cacheEntry.value = value;
+            mCacheMap.put(key, cacheEntry);
+
+            if (LOCAL_LOGV) {
+                Log.v(TAG, key + " cached, " + mCacheMap.size() + " items total.");
+            }
+            return true;
+        }
+        return false;
+    }
+
+    @UnsupportedAppUsage
+    public V get(K key) {
+        if (LOCAL_LOGV) {
+            Log.v(TAG, "Trying to get " + key + " from cache.");
+        }
+
+        if (key != null) {
+            CacheEntry<V> cacheEntry = mCacheMap.get(key);
+            if (cacheEntry != null) {
+                cacheEntry.hit++;
+                if (LOCAL_LOGV) {
+                    Log.v(TAG, key + " hit " + cacheEntry.hit + " times.");
+                }
+                return cacheEntry.value;
+            }
+        }
+        return null;
+    }
+
+    @UnsupportedAppUsage
+    public V purge(K key) {
+        if (LOCAL_LOGV) {
+            Log.v(TAG, "Trying to purge " + key);
+        }
+
+        CacheEntry<V> v = mCacheMap.remove(key);
+
+        if (LOCAL_LOGV) {
+            Log.v(TAG, mCacheMap.size() + " items cached.");
+        }
+
+        return v != null ? v.value : null;
+    }
+
+    @UnsupportedAppUsage
+    public void purgeAll() {
+        if (LOCAL_LOGV) {
+            Log.v(TAG, "Purging cache, " + mCacheMap.size()
+                    + " items dropped.");
+        }
+        mCacheMap.clear();
+    }
+
+    public int size() {
+        return mCacheMap.size();
+    }
+
+    private static class CacheEntry<V> {
+        int hit;
+        V value;
+    }
+}
diff --git a/telephony/java/com/google/android/mms/util/DownloadDrmHelper.java b/telephony/java/com/google/android/mms/util/DownloadDrmHelper.java
new file mode 100644
index 0000000..118de46
--- /dev/null
+++ b/telephony/java/com/google/android/mms/util/DownloadDrmHelper.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package com.google.android.mms.util;
+
+import android.content.Context;
+import android.drm.DrmManagerClient;
+import android.util.Log;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+public class DownloadDrmHelper {
+    private static final String TAG = "DownloadDrmHelper";
+
+    /** The MIME type of special DRM files */
+    public static final String MIMETYPE_DRM_MESSAGE = "application/vnd.oma.drm.message";
+
+    /** The extensions of special DRM files */
+    public static final String EXTENSION_DRM_MESSAGE = ".dm";
+
+    public static final String EXTENSION_INTERNAL_FWDL = ".fl";
+
+    /**
+     * Checks if the Media Type is a DRM Media Type
+     *
+     * @param drmManagerClient A DrmManagerClient
+     * @param mimetype Media Type to check
+     * @return True if the Media Type is DRM else false
+     */
+    public static boolean isDrmMimeType(Context context, String mimetype) {
+        boolean result = false;
+        if (context != null) {
+            try {
+                DrmManagerClient drmClient = new DrmManagerClient(context);
+                if (drmClient != null && mimetype != null && mimetype.length() > 0) {
+                    result = drmClient.canHandle("", mimetype);
+                }
+            } catch (IllegalArgumentException e) {
+                Log.w(TAG,
+                        "DrmManagerClient instance could not be created, context is Illegal.");
+            } catch (IllegalStateException e) {
+                Log.w(TAG, "DrmManagerClient didn't initialize properly.");
+            }
+        }
+        return result;
+    }
+
+    /**
+     * Checks if the Media Type needs to be DRM converted
+     *
+     * @param mimetype Media type of the content
+     * @return True if convert is needed else false
+     */
+    @UnsupportedAppUsage
+    public static boolean isDrmConvertNeeded(String mimetype) {
+        return MIMETYPE_DRM_MESSAGE.equals(mimetype);
+    }
+
+    /**
+     * Modifies the file extension for a DRM Forward Lock file NOTE: This
+     * function shouldn't be called if the file shouldn't be DRM converted
+     */
+    @UnsupportedAppUsage
+    public static String modifyDrmFwLockFileExtension(String filename) {
+        if (filename != null) {
+            int extensionIndex;
+            extensionIndex = filename.lastIndexOf(".");
+            if (extensionIndex != -1) {
+                filename = filename.substring(0, extensionIndex);
+            }
+            filename = filename.concat(EXTENSION_INTERNAL_FWDL);
+        }
+        return filename;
+    }
+
+    /**
+     * Gets the original mime type of DRM protected content.
+     *
+     * @param context The context
+     * @param path Path to the file
+     * @param containingMime The current mime type of the file i.e. the
+     *            containing mime type
+     * @return The original mime type of the file if DRM protected else the
+     *         currentMime
+     */
+    public static String getOriginalMimeType(Context context, String path, String containingMime) {
+        String result = containingMime;
+        DrmManagerClient drmClient = new DrmManagerClient(context);
+        try {
+            if (drmClient.canHandle(path, null)) {
+                result = drmClient.getOriginalMimeType(path);
+            }
+        } catch (IllegalArgumentException ex) {
+            Log.w(TAG,
+                    "Can't get original mime type since path is null or empty string.");
+        } catch (IllegalStateException ex) {
+            Log.w(TAG, "DrmManagerClient didn't initialize properly.");
+        }
+        return result;
+    }
+}
diff --git a/telephony/java/com/google/android/mms/util/DrmConvertSession.java b/telephony/java/com/google/android/mms/util/DrmConvertSession.java
new file mode 100644
index 0000000..0e8ec91
--- /dev/null
+++ b/telephony/java/com/google/android/mms/util/DrmConvertSession.java
@@ -0,0 +1,177 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+package com.google.android.mms.util;
+
+import android.content.Context;
+import android.drm.DrmConvertedStatus;
+import android.drm.DrmManagerClient;
+import android.provider.Downloads;
+import android.util.Log;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.RandomAccessFile;
+
+
+public class DrmConvertSession {
+    private DrmManagerClient mDrmClient;
+    private int mConvertSessionId;
+    private static final String TAG = "DrmConvertSession";
+
+    private DrmConvertSession(DrmManagerClient drmClient, int convertSessionId) {
+        mDrmClient = drmClient;
+        mConvertSessionId = convertSessionId;
+    }
+
+    /**
+     * Start of converting a file.
+     *
+     * @param context The context of the application running the convert session.
+     * @param mimeType Mimetype of content that shall be converted.
+     * @return A convert session or null in case an error occurs.
+     */
+    @UnsupportedAppUsage
+    public static DrmConvertSession open(Context context, String mimeType) {
+        DrmManagerClient drmClient = null;
+        int convertSessionId = -1;
+        if (context != null && mimeType != null && !mimeType.equals("")) {
+            try {
+                drmClient = new DrmManagerClient(context);
+                try {
+                    convertSessionId = drmClient.openConvertSession(mimeType);
+                } catch (IllegalArgumentException e) {
+                    Log.w(TAG, "Conversion of Mimetype: " + mimeType
+                            + " is not supported.", e);
+                } catch (IllegalStateException e) {
+                    Log.w(TAG, "Could not access Open DrmFramework.", e);
+                }
+            } catch (IllegalArgumentException e) {
+                Log.w(TAG,
+                        "DrmManagerClient instance could not be created, context is Illegal.");
+            } catch (IllegalStateException e) {
+                Log.w(TAG, "DrmManagerClient didn't initialize properly.");
+            }
+        }
+
+        if (drmClient == null || convertSessionId < 0) {
+            return null;
+        } else {
+            return new DrmConvertSession(drmClient, convertSessionId);
+        }
+    }
+    /**
+     * Convert a buffer of data to protected format.
+     *
+     * @param buffer Buffer filled with data to convert.
+     * @param size The number of bytes that shall be converted.
+     * @return A Buffer filled with converted data, if execution is ok, in all
+     *         other case null.
+     */
+    @UnsupportedAppUsage
+    public byte [] convert(byte[] inBuffer, int size) {
+        byte[] result = null;
+        if (inBuffer != null) {
+            DrmConvertedStatus convertedStatus = null;
+            try {
+                if (size != inBuffer.length) {
+                    byte[] buf = new byte[size];
+                    System.arraycopy(inBuffer, 0, buf, 0, size);
+                    convertedStatus = mDrmClient.convertData(mConvertSessionId, buf);
+                } else {
+                    convertedStatus = mDrmClient.convertData(mConvertSessionId, inBuffer);
+                }
+
+                if (convertedStatus != null &&
+                        convertedStatus.statusCode == DrmConvertedStatus.STATUS_OK &&
+                        convertedStatus.convertedData != null) {
+                    result = convertedStatus.convertedData;
+                }
+            } catch (IllegalArgumentException e) {
+                Log.w(TAG, "Buffer with data to convert is illegal. Convertsession: "
+                        + mConvertSessionId, e);
+            } catch (IllegalStateException e) {
+                Log.w(TAG, "Could not convert data. Convertsession: " +
+                        mConvertSessionId, e);
+            }
+        } else {
+            throw new IllegalArgumentException("Parameter inBuffer is null");
+        }
+        return result;
+    }
+
+    /**
+     * Ends a conversion session of a file.
+     *
+     * @param fileName The filename of the converted file.
+     * @return Downloads.Impl.STATUS_SUCCESS if execution is ok.
+     *         Downloads.Impl.STATUS_FILE_ERROR in case converted file can not
+     *         be accessed. Downloads.Impl.STATUS_NOT_ACCEPTABLE if a problem
+     *         occurs when accessing drm framework.
+     *         Downloads.Impl.STATUS_UNKNOWN_ERROR if a general error occurred.
+     */
+    @UnsupportedAppUsage
+    public int close(String filename) {
+        DrmConvertedStatus convertedStatus = null;
+        int result = Downloads.Impl.STATUS_UNKNOWN_ERROR;
+        if (mDrmClient != null && mConvertSessionId >= 0) {
+            try {
+                convertedStatus = mDrmClient.closeConvertSession(mConvertSessionId);
+                if (convertedStatus == null ||
+                        convertedStatus.statusCode != DrmConvertedStatus.STATUS_OK ||
+                        convertedStatus.convertedData == null) {
+                    result = Downloads.Impl.STATUS_NOT_ACCEPTABLE;
+                } else {
+                    RandomAccessFile rndAccessFile = null;
+                    try {
+                        rndAccessFile = new RandomAccessFile(filename, "rw");
+                        rndAccessFile.seek(convertedStatus.offset);
+                        rndAccessFile.write(convertedStatus.convertedData);
+                        result = Downloads.Impl.STATUS_SUCCESS;
+                    } catch (FileNotFoundException e) {
+                        result = Downloads.Impl.STATUS_FILE_ERROR;
+                        Log.w(TAG, "File: " + filename + " could not be found.", e);
+                    } catch (IOException e) {
+                        result = Downloads.Impl.STATUS_FILE_ERROR;
+                        Log.w(TAG, "Could not access File: " + filename + " .", e);
+                    } catch (IllegalArgumentException e) {
+                        result = Downloads.Impl.STATUS_FILE_ERROR;
+                        Log.w(TAG, "Could not open file in mode: rw", e);
+                    } catch (SecurityException e) {
+                        Log.w(TAG, "Access to File: " + filename +
+                                " was denied denied by SecurityManager.", e);
+                    } finally {
+                        if (rndAccessFile != null) {
+                            try {
+                                rndAccessFile.close();
+                            } catch (IOException e) {
+                                result = Downloads.Impl.STATUS_FILE_ERROR;
+                                Log.w(TAG, "Failed to close File:" + filename
+                                        + ".", e);
+                            }
+                        }
+                    }
+                }
+            } catch (IllegalStateException e) {
+                Log.w(TAG, "Could not close convertsession. Convertsession: " +
+                        mConvertSessionId, e);
+            }
+        }
+        return result;
+    }
+}
diff --git a/telephony/java/com/google/android/mms/util/PduCache.java b/telephony/java/com/google/android/mms/util/PduCache.java
new file mode 100644
index 0000000..94e3894
--- /dev/null
+++ b/telephony/java/com/google/android/mms/util/PduCache.java
@@ -0,0 +1,268 @@
+/*
+ * Copyright (C) 2008 Esmertec AG.
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.util;
+
+import android.content.ContentUris;
+import android.content.UriMatcher;
+import android.net.Uri;
+import android.provider.Telephony.Mms;
+import android.util.Log;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import java.util.HashMap;
+import java.util.HashSet;
+
+public final class PduCache extends AbstractCache<Uri, PduCacheEntry> {
+    private static final String TAG = "PduCache";
+    private static final boolean DEBUG = false;
+    private static final boolean LOCAL_LOGV = false;
+
+    private static final int MMS_ALL             = 0;
+    private static final int MMS_ALL_ID          = 1;
+    private static final int MMS_INBOX           = 2;
+    private static final int MMS_INBOX_ID        = 3;
+    private static final int MMS_SENT            = 4;
+    private static final int MMS_SENT_ID         = 5;
+    private static final int MMS_DRAFTS          = 6;
+    private static final int MMS_DRAFTS_ID       = 7;
+    private static final int MMS_OUTBOX          = 8;
+    private static final int MMS_OUTBOX_ID       = 9;
+    private static final int MMS_CONVERSATION    = 10;
+    private static final int MMS_CONVERSATION_ID = 11;
+
+    private static final UriMatcher URI_MATCHER;
+    private static final HashMap<Integer, Integer> MATCH_TO_MSGBOX_ID_MAP;
+
+    private static PduCache sInstance;
+
+    static {
+        URI_MATCHER = new UriMatcher(UriMatcher.NO_MATCH);
+        URI_MATCHER.addURI("mms", null,         MMS_ALL);
+        URI_MATCHER.addURI("mms", "#",          MMS_ALL_ID);
+        URI_MATCHER.addURI("mms", "inbox",      MMS_INBOX);
+        URI_MATCHER.addURI("mms", "inbox/#",    MMS_INBOX_ID);
+        URI_MATCHER.addURI("mms", "sent",       MMS_SENT);
+        URI_MATCHER.addURI("mms", "sent/#",     MMS_SENT_ID);
+        URI_MATCHER.addURI("mms", "drafts",     MMS_DRAFTS);
+        URI_MATCHER.addURI("mms", "drafts/#",   MMS_DRAFTS_ID);
+        URI_MATCHER.addURI("mms", "outbox",     MMS_OUTBOX);
+        URI_MATCHER.addURI("mms", "outbox/#",   MMS_OUTBOX_ID);
+        URI_MATCHER.addURI("mms-sms", "conversations",   MMS_CONVERSATION);
+        URI_MATCHER.addURI("mms-sms", "conversations/#", MMS_CONVERSATION_ID);
+
+        MATCH_TO_MSGBOX_ID_MAP = new HashMap<Integer, Integer>();
+        MATCH_TO_MSGBOX_ID_MAP.put(MMS_INBOX,  Mms.MESSAGE_BOX_INBOX);
+        MATCH_TO_MSGBOX_ID_MAP.put(MMS_SENT,   Mms.MESSAGE_BOX_SENT);
+        MATCH_TO_MSGBOX_ID_MAP.put(MMS_DRAFTS, Mms.MESSAGE_BOX_DRAFTS);
+        MATCH_TO_MSGBOX_ID_MAP.put(MMS_OUTBOX, Mms.MESSAGE_BOX_OUTBOX);
+    }
+
+    private final HashMap<Integer, HashSet<Uri>> mMessageBoxes;
+    private final HashMap<Long, HashSet<Uri>> mThreads;
+    private final HashSet<Uri> mUpdating;
+
+    @UnsupportedAppUsage
+    private PduCache() {
+        mMessageBoxes = new HashMap<Integer, HashSet<Uri>>();
+        mThreads = new HashMap<Long, HashSet<Uri>>();
+        mUpdating = new HashSet<Uri>();
+    }
+
+    @UnsupportedAppUsage
+    synchronized public static final PduCache getInstance() {
+        if (sInstance == null) {
+            if (LOCAL_LOGV) {
+                Log.v(TAG, "Constructing new PduCache instance.");
+            }
+            sInstance = new PduCache();
+        }
+        return sInstance;
+    }
+
+    @Override
+    synchronized public boolean put(Uri uri, PduCacheEntry entry) {
+        int msgBoxId = entry.getMessageBox();
+        HashSet<Uri> msgBox = mMessageBoxes.get(msgBoxId);
+        if (msgBox == null) {
+            msgBox = new HashSet<Uri>();
+            mMessageBoxes.put(msgBoxId, msgBox);
+        }
+
+        long threadId = entry.getThreadId();
+        HashSet<Uri> thread = mThreads.get(threadId);
+        if (thread == null) {
+            thread = new HashSet<Uri>();
+            mThreads.put(threadId, thread);
+        }
+
+        Uri finalKey = normalizeKey(uri);
+        boolean result = super.put(finalKey, entry);
+        if (result) {
+            msgBox.add(finalKey);
+            thread.add(finalKey);
+        }
+        setUpdating(uri, false);
+        return result;
+    }
+
+    synchronized public void setUpdating(Uri uri, boolean updating) {
+        if (updating) {
+            mUpdating.add(uri);
+        } else {
+            mUpdating.remove(uri);
+        }
+    }
+
+    @UnsupportedAppUsage
+    synchronized public boolean isUpdating(Uri uri) {
+        return mUpdating.contains(uri);
+    }
+
+    @Override
+    @UnsupportedAppUsage
+    synchronized public PduCacheEntry purge(Uri uri) {
+        int match = URI_MATCHER.match(uri);
+        switch (match) {
+            case MMS_ALL_ID:
+                return purgeSingleEntry(uri);
+            case MMS_INBOX_ID:
+            case MMS_SENT_ID:
+            case MMS_DRAFTS_ID:
+            case MMS_OUTBOX_ID:
+                String msgId = uri.getLastPathSegment();
+                return purgeSingleEntry(Uri.withAppendedPath(Mms.CONTENT_URI, msgId));
+            // Implicit batch of purge, return null.
+            case MMS_ALL:
+            case MMS_CONVERSATION:
+                purgeAll();
+                return null;
+            case MMS_INBOX:
+            case MMS_SENT:
+            case MMS_DRAFTS:
+            case MMS_OUTBOX:
+                purgeByMessageBox(MATCH_TO_MSGBOX_ID_MAP.get(match));
+                return null;
+            case MMS_CONVERSATION_ID:
+                purgeByThreadId(ContentUris.parseId(uri));
+                return null;
+            default:
+                return null;
+        }
+    }
+
+    private PduCacheEntry purgeSingleEntry(Uri key) {
+        mUpdating.remove(key);
+        PduCacheEntry entry = super.purge(key);
+        if (entry != null) {
+            removeFromThreads(key, entry);
+            removeFromMessageBoxes(key, entry);
+            return entry;
+        }
+        return null;
+    }
+
+    @UnsupportedAppUsage
+    @Override
+    synchronized public void purgeAll() {
+        super.purgeAll();
+
+        mMessageBoxes.clear();
+        mThreads.clear();
+        mUpdating.clear();
+    }
+
+    /**
+     * @param uri The Uri to be normalized.
+     * @return Uri The normalized key of cached entry.
+     */
+    private Uri normalizeKey(Uri uri) {
+        int match = URI_MATCHER.match(uri);
+        Uri normalizedKey = null;
+
+        switch (match) {
+            case MMS_ALL_ID:
+                normalizedKey = uri;
+                break;
+            case MMS_INBOX_ID:
+            case MMS_SENT_ID:
+            case MMS_DRAFTS_ID:
+            case MMS_OUTBOX_ID:
+                String msgId = uri.getLastPathSegment();
+                normalizedKey = Uri.withAppendedPath(Mms.CONTENT_URI, msgId);
+                break;
+            default:
+                return null;
+        }
+
+        if (LOCAL_LOGV) {
+            Log.v(TAG, uri + " -> " + normalizedKey);
+        }
+        return normalizedKey;
+    }
+
+    private void purgeByMessageBox(Integer msgBoxId) {
+        if (LOCAL_LOGV) {
+            Log.v(TAG, "Purge cache in message box: " + msgBoxId);
+        }
+
+        if (msgBoxId != null) {
+            HashSet<Uri> msgBox = mMessageBoxes.remove(msgBoxId);
+            if (msgBox != null) {
+                for (Uri key : msgBox) {
+                    mUpdating.remove(key);
+                    PduCacheEntry entry = super.purge(key);
+                    if (entry != null) {
+                        removeFromThreads(key, entry);
+                    }
+                }
+            }
+        }
+    }
+
+    private void removeFromThreads(Uri key, PduCacheEntry entry) {
+        HashSet<Uri> thread = mThreads.get(entry.getThreadId());
+        if (thread != null) {
+            thread.remove(key);
+        }
+    }
+
+    private void purgeByThreadId(long threadId) {
+        if (LOCAL_LOGV) {
+            Log.v(TAG, "Purge cache in thread: " + threadId);
+        }
+
+        HashSet<Uri> thread = mThreads.remove(threadId);
+        if (thread != null) {
+            for (Uri key : thread) {
+                mUpdating.remove(key);
+                PduCacheEntry entry = super.purge(key);
+                if (entry != null) {
+                    removeFromMessageBoxes(key, entry);
+                }
+            }
+        }
+    }
+
+    private void removeFromMessageBoxes(Uri key, PduCacheEntry entry) {
+        HashSet<Uri> msgBox = mThreads.get(Long.valueOf(entry.getMessageBox()));
+        if (msgBox != null) {
+            msgBox.remove(key);
+        }
+    }
+}
diff --git a/telephony/java/com/google/android/mms/util/PduCacheEntry.java b/telephony/java/com/google/android/mms/util/PduCacheEntry.java
new file mode 100644
index 0000000..1ecd1bf
--- /dev/null
+++ b/telephony/java/com/google/android/mms/util/PduCacheEntry.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2008 Esmertec AG.
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.util;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import com.google.android.mms.pdu.GenericPdu;
+
+public final class PduCacheEntry {
+    private final GenericPdu mPdu;
+    private final int mMessageBox;
+    private final long mThreadId;
+
+    @UnsupportedAppUsage
+    public PduCacheEntry(GenericPdu pdu, int msgBox, long threadId) {
+        mPdu = pdu;
+        mMessageBox = msgBox;
+        mThreadId = threadId;
+    }
+
+    @UnsupportedAppUsage
+    public GenericPdu getPdu() {
+        return mPdu;
+    }
+
+    @UnsupportedAppUsage
+    public int getMessageBox() {
+        return mMessageBox;
+    }
+
+    @UnsupportedAppUsage
+    public long getThreadId() {
+        return mThreadId;
+    }
+}
diff --git a/telephony/java/com/google/android/mms/util/SqliteWrapper.java b/telephony/java/com/google/android/mms/util/SqliteWrapper.java
new file mode 100644
index 0000000..2dd1dc1
--- /dev/null
+++ b/telephony/java/com/google/android/mms/util/SqliteWrapper.java
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2008 Esmertec AG.
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.mms.util;
+
+import android.app.ActivityManager;
+import android.content.ContentResolver;
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteException;
+import android.net.Uri;
+import android.util.Log;
+import android.widget.Toast;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+public final class SqliteWrapper {
+    private static final String TAG = "SqliteWrapper";
+    private static final String SQLITE_EXCEPTION_DETAIL_MESSAGE
+                = "unable to open database file";
+
+    private SqliteWrapper() {
+        // Forbidden being instantiated.
+    }
+
+    // FIXME: It looks like outInfo.lowMemory does not work well as we expected.
+    // after run command: adb shell fillup -p 100, outInfo.lowMemory is still false.
+    private static boolean isLowMemory(Context context) {
+        if (null == context) {
+            return false;
+        }
+
+        ActivityManager am = (ActivityManager)
+                        context.getSystemService(Context.ACTIVITY_SERVICE);
+        ActivityManager.MemoryInfo outInfo = new ActivityManager.MemoryInfo();
+        am.getMemoryInfo(outInfo);
+
+        return outInfo.lowMemory;
+    }
+
+    // FIXME: need to optimize this method.
+    private static boolean isLowMemory(SQLiteException e) {
+        return e.getMessage().equals(SQLITE_EXCEPTION_DETAIL_MESSAGE);
+    }
+
+    @UnsupportedAppUsage
+    public static void checkSQLiteException(Context context, SQLiteException e) {
+        if (isLowMemory(e)) {
+            Toast.makeText(context, com.android.internal.R.string.low_memory,
+                    Toast.LENGTH_SHORT).show();
+        } else {
+            throw e;
+        }
+    }
+
+    @UnsupportedAppUsage
+    public static Cursor query(Context context, ContentResolver resolver, Uri uri,
+            String[] projection, String selection, String[] selectionArgs, String sortOrder) {
+        try {
+            return resolver.query(uri, projection, selection, selectionArgs, sortOrder);
+        } catch (SQLiteException e) {
+            Log.e(TAG, "Catch a SQLiteException when query: ", e);
+            checkSQLiteException(context, e);
+            return null;
+        }
+    }
+
+    @UnsupportedAppUsage
+    public static boolean requery(Context context, Cursor cursor) {
+        try {
+            return cursor.requery();
+        } catch (SQLiteException e) {
+            Log.e(TAG, "Catch a SQLiteException when requery: ", e);
+            checkSQLiteException(context, e);
+            return false;
+        }
+    }
+    @UnsupportedAppUsage
+    public static int update(Context context, ContentResolver resolver, Uri uri,
+            ContentValues values, String where, String[] selectionArgs) {
+        try {
+            return resolver.update(uri, values, where, selectionArgs);
+        } catch (SQLiteException e) {
+            Log.e(TAG, "Catch a SQLiteException when update: ", e);
+            checkSQLiteException(context, e);
+            return -1;
+        }
+    }
+
+    @UnsupportedAppUsage
+    public static int delete(Context context, ContentResolver resolver, Uri uri,
+            String where, String[] selectionArgs) {
+        try {
+            return resolver.delete(uri, where, selectionArgs);
+        } catch (SQLiteException e) {
+            Log.e(TAG, "Catch a SQLiteException when delete: ", e);
+            checkSQLiteException(context, e);
+            return -1;
+        }
+    }
+
+    @UnsupportedAppUsage
+    public static Uri insert(Context context, ContentResolver resolver,
+            Uri uri, ContentValues values) {
+        try {
+            return resolver.insert(uri, values);
+        } catch (SQLiteException e) {
+            Log.e(TAG, "Catch a SQLiteException when insert: ", e);
+            checkSQLiteException(context, e);
+            return null;
+        }
+    }
+}
diff --git a/telephony/java/com/google/android/mms/util/package.html b/telephony/java/com/google/android/mms/util/package.html
new file mode 100755
index 0000000..c9f96a6
--- /dev/null
+++ b/telephony/java/com/google/android/mms/util/package.html
@@ -0,0 +1,5 @@
+<body>
+
+{@hide}
+
+</body>
diff --git a/tests/PackageWatchdog/src/com/android/server/PackageWatchdogTest.java b/tests/PackageWatchdog/src/com/android/server/PackageWatchdogTest.java
index ff4c970..79f5095 100644
--- a/tests/PackageWatchdog/src/com/android/server/PackageWatchdogTest.java
+++ b/tests/PackageWatchdog/src/com/android/server/PackageWatchdogTest.java
@@ -765,6 +765,45 @@
         assertThat(observer.mHealthCheckFailedPackages).containsExactly(APP_B);
     }
 
+    /**
+     * Test default monitoring duration is used when PackageWatchdog#startObservingHealth is offered
+     * an invalid durationMs.
+     */
+    @Test
+    public void testInvalidMonitoringDuration_beforeExpiry() {
+        PackageWatchdog watchdog = createWatchdog();
+        TestObserver observer = new TestObserver(OBSERVER_NAME_1);
+
+        watchdog.startObservingHealth(observer, Arrays.asList(APP_A), -1);
+        // Note: Don't move too close to the expiration time otherwise the handler will be thrashed
+        // by PackageWatchdog#scheduleNextSyncStateLocked which keeps posting runnables with very
+        // small timeouts.
+        moveTimeForwardAndDispatch(PackageWatchdog.DEFAULT_OBSERVING_DURATION_MS - 100);
+        raiseFatalFailureAndDispatch(watchdog,
+                Arrays.asList(new VersionedPackage(APP_A, VERSION_CODE)));
+
+        // We should receive APP_A since the observer hasn't expired
+        assertThat(observer.mHealthCheckFailedPackages).containsExactly(APP_A);
+    }
+
+    /**
+     * Test default monitoring duration is used when PackageWatchdog#startObservingHealth is offered
+     * an invalid durationMs.
+     */
+    @Test
+    public void testInvalidMonitoringDuration_afterExpiry() {
+        PackageWatchdog watchdog = createWatchdog();
+        TestObserver observer = new TestObserver(OBSERVER_NAME_1);
+
+        watchdog.startObservingHealth(observer, Arrays.asList(APP_A), -1);
+        moveTimeForwardAndDispatch(PackageWatchdog.DEFAULT_OBSERVING_DURATION_MS + 1);
+        raiseFatalFailureAndDispatch(watchdog,
+                Arrays.asList(new VersionedPackage(APP_A, VERSION_CODE)));
+
+        // We should receive nothing since the observer has expired
+        assertThat(observer.mHealthCheckFailedPackages).isEmpty();
+    }
+
     /** Test we are notified when enough failures are triggered within any window. */
     @Test
     public void testFailureTriggerWindow() {
diff --git a/tools/aapt2/Debug.cpp b/tools/aapt2/Debug.cpp
index 7ffa5ff..137fbd6 100644
--- a/tools/aapt2/Debug.cpp
+++ b/tools/aapt2/Debug.cpp
@@ -246,6 +246,36 @@
   Printer* printer_;
 };
 
+std::string OverlayablePoliciesToString(OverlayableItem::PolicyFlags policies) {
+  static const std::map<OverlayableItem::PolicyFlags, std::string> kFlagToString = {
+    {OverlayableItem::kPublic, "public"},
+    {OverlayableItem::kSystem, "system"},
+    {OverlayableItem::kVendor, "vendor"},
+    {OverlayableItem::kProduct, "product"},
+    {OverlayableItem::kSignature, "signature"},
+    {OverlayableItem::kOdm, "odm"},
+    {OverlayableItem::kOem, "oem"},
+  };
+  std::string str;
+  for (auto const& policy : kFlagToString) {
+    if ((policies & policy.first) != policy.first) {
+      continue;
+    }
+    if (!str.empty()) {
+      str.append("|");
+    }
+    str.append(policy.second);
+    policies &= ~policy.first;
+  }
+  if (policies != 0) {
+    if (!str.empty()) {
+      str.append("|");
+    }
+    str.append(StringPrintf("0x%08x", policies));
+  }
+  return !str.empty() ? str : "none";
+}
+
 }  // namespace
 
 void Debug::PrintTable(const ResourceTable& table, const DebugPrintTableOptions& options,
@@ -312,6 +342,10 @@
             break;
         }
 
+        if (entry->overlayable_item) {
+          printer->Print(" OVERLAYABLE");
+        }
+
         printer->Println();
 
         if (options.show_values) {
@@ -525,4 +559,62 @@
   doc.root->Accept(&xml_visitor);
 }
 
+struct DumpOverlayableEntry {
+  std::string overlayable_section;
+  std::string policy_subsection;
+  std::string resource_name;
+};
+
+void Debug::DumpOverlayable(const ResourceTable& table, text::Printer* printer) {
+  std::vector<DumpOverlayableEntry> items;
+  for (const auto& package : table.packages) {
+    for (const auto& type : package->types) {
+      for (const auto& entry : type->entries) {
+        if (entry->overlayable_item) {
+          const auto& overlayable_item = entry->overlayable_item.value();
+          const auto overlayable_section = StringPrintf(R"(name="%s" actor="%s")",
+              overlayable_item.overlayable->name.c_str(),
+              overlayable_item.overlayable->actor.c_str());
+          const auto policy_subsection = StringPrintf(R"(policies="%s")",
+              OverlayablePoliciesToString(overlayable_item.policies).c_str());
+          const auto value =
+            StringPrintf("%s/%s", to_string(type->type).data(), entry->name.c_str());
+          items.push_back(DumpOverlayableEntry{overlayable_section, policy_subsection, value});
+        }
+      }
+    }
+  }
+
+  std::sort(items.begin(), items.end(),
+      [](const DumpOverlayableEntry& a, const DumpOverlayableEntry& b) {
+        if (a.overlayable_section != b.overlayable_section) {
+          return a.overlayable_section < b.overlayable_section;
+        }
+        if (a.policy_subsection != b.policy_subsection) {
+          return a.policy_subsection < b.policy_subsection;
+        }
+        return a.resource_name < b.resource_name;
+      });
+
+  std::string last_overlayable_section;
+  std::string last_policy_subsection;
+  for (const auto& item : items) {
+    if (last_overlayable_section != item.overlayable_section) {
+      printer->Println(item.overlayable_section);
+      last_overlayable_section = item.overlayable_section;
+    }
+    if (last_policy_subsection != item.policy_subsection) {
+      printer->Indent();
+      printer->Println(item.policy_subsection);
+      last_policy_subsection = item.policy_subsection;
+      printer->Undent();
+    }
+    printer->Indent();
+    printer->Indent();
+    printer->Println(item.resource_name);
+    printer->Undent();
+    printer->Undent();
+  }
+}
+
 }  // namespace aapt
diff --git a/tools/aapt2/Debug.h b/tools/aapt2/Debug.h
index a43197c..9443d60 100644
--- a/tools/aapt2/Debug.h
+++ b/tools/aapt2/Debug.h
@@ -39,6 +39,7 @@
   static void DumpHex(const void* data, size_t len);
   static void DumpXml(const xml::XmlResource& doc, text::Printer* printer);
   static void DumpResStringPool(const android::ResStringPool* pool, text::Printer* printer);
+  static void DumpOverlayable(const ResourceTable& table, text::Printer* printer);
 };
 
 }  // namespace aapt
diff --git a/tools/aapt2/cmd/Dump.cpp b/tools/aapt2/cmd/Dump.cpp
index 429aff1..3982d12 100644
--- a/tools/aapt2/cmd/Dump.cpp
+++ b/tools/aapt2/cmd/Dump.cpp
@@ -394,6 +394,17 @@
   return 0;
 }
 
+int DumpOverlayableCommand::Dump(LoadedApk* apk) {
+  ResourceTable* table = apk->GetResourceTable();
+  if (!table) {
+    GetDiagnostics()->Error(DiagMessage() << "Failed to retrieve resource table");
+    return 1;
+  }
+
+  Debug::DumpOverlayable(*table, GetPrinter());
+  return 0;
+}
+
 const char DumpBadgerCommand::kBadgerData[2925] = {
     32,  32,  32,  32,  32,  32,  32,  32,  32,  32,  32,  32,  32,  32,  32,  32,  32,  32,  32,
     32,  32,  32,  32,  32,  32,  95,  46,  32,  32,  32,  32,  32,  32,  32,  32,  32,  32,  32,
diff --git a/tools/aapt2/cmd/Dump.h b/tools/aapt2/cmd/Dump.h
index 7ded9bc..cd51f7a 100644
--- a/tools/aapt2/cmd/Dump.h
+++ b/tools/aapt2/cmd/Dump.h
@@ -240,6 +240,16 @@
   std::vector<std::string> files_;
 };
 
+class DumpOverlayableCommand : public DumpApkCommand {
+ public:
+  explicit DumpOverlayableCommand(text::Printer* printer, IDiagnostics* diag)
+      : DumpApkCommand("overlayable", printer, diag) {
+    SetDescription("Print the <overlayable> resources of an APK.");
+  }
+
+  int Dump(LoadedApk* apk) override;
+};
+
 /** The default dump command. Performs no action because a subcommand is required. */
 class DumpCommand : public Command {
  public:
@@ -255,8 +265,8 @@
     AddOptionalSubcommand(util::make_unique<DumpTableCommand>(printer, diag_));
     AddOptionalSubcommand(util::make_unique<DumpXmlStringsCommand>(printer, diag_));
     AddOptionalSubcommand(util::make_unique<DumpXmlTreeCommand>(printer, diag_));
+    AddOptionalSubcommand(util::make_unique<DumpOverlayableCommand>(printer, diag_));
     AddOptionalSubcommand(util::make_unique<DumpBadgerCommand>(printer), /* hidden */ true);
-    // TODO(b/120609160): Add aapt2 overlayable dump command
   }
 
   int Action(const std::vector<std::string>& args) override {
diff --git a/tools/aapt2/cmd/Optimize.cpp b/tools/aapt2/cmd/Optimize.cpp
index 5e06818..e36668e 100644
--- a/tools/aapt2/cmd/Optimize.cpp
+++ b/tools/aapt2/cmd/Optimize.cpp
@@ -53,9 +53,9 @@
 using ::android::ResTable_config;
 using ::android::StringPiece;
 using ::android::base::ReadFileToString;
-using ::android::base::WriteStringToFile;
 using ::android::base::StringAppendF;
 using ::android::base::StringPrintf;
+using ::android::base::WriteStringToFile;
 
 namespace aapt {
 
@@ -300,29 +300,7 @@
   OptimizeContext* context_;
 };
 
-bool ExtractObfuscationWhitelistFromConfig(const std::string& path, OptimizeContext* context,
-                                           OptimizeOptions* options) {
-  std::string contents;
-  if (!ReadFileToString(path, &contents, true)) {
-    context->GetDiagnostics()->Error(DiagMessage()
-                                     << "failed to parse whitelist from config file: " << path);
-    return false;
-  }
-  for (StringPiece resource_name : util::Tokenize(contents, ',')) {
-    options->table_flattener_options.whitelisted_resources.insert(
-        resource_name.to_string());
-  }
-  return true;
-}
-
-bool ExtractConfig(const std::string& path, OptimizeContext* context,
-                                    OptimizeOptions* options) {
-  std::string content;
-  if (!android::base::ReadFileToString(path, &content, true /*follow_symlinks*/)) {
-    context->GetDiagnostics()->Error(DiagMessage(path) << "failed reading whitelist");
-    return false;
-  }
-
+bool ParseConfig(const std::string& content, IAaptContext* context, OptimizeOptions* options) {
   size_t line_no = 0;
   for (StringPiece line : util::Tokenize(content, '\n')) {
     line_no++;
@@ -351,15 +329,24 @@
     for (StringPiece directive : util::Tokenize(directives, ',')) {
       if (directive == "remove") {
         options->resources_blacklist.insert(resource_name.ToResourceName());
-      } else if (directive == "no_obfuscate") {
-        options->table_flattener_options.whitelisted_resources.insert(
-            resource_name.entry.to_string());
+      } else if (directive == "no_collapse" || directive == "no_obfuscate") {
+        options->table_flattener_options.name_collapse_exemptions.insert(
+            resource_name.ToResourceName());
       }
     }
   }
   return true;
 }
 
+bool ExtractConfig(const std::string& path, IAaptContext* context, OptimizeOptions* options) {
+  std::string content;
+  if (!android::base::ReadFileToString(path, &content, true /*follow_symlinks*/)) {
+    context->GetDiagnostics()->Error(DiagMessage(path) << "failed reading config file");
+    return false;
+  }
+  return ParseConfig(content, context, options);
+}
+
 bool ExtractAppDataFromManifest(OptimizeContext* context, const LoadedApk* apk,
                                 OptimizeOptions* out_options) {
   const xml::XmlResource* manifest = apk->GetManifest();
@@ -467,15 +454,6 @@
     }
   }
 
-  if (options_.table_flattener_options.collapse_key_stringpool) {
-    if (whitelist_path_) {
-      std::string& path = whitelist_path_.value();
-      if (!ExtractObfuscationWhitelistFromConfig(path, &context, &options_)) {
-        return 1;
-      }
-    }
-  }
-
   if (resources_config_path_) {
     std::string& path = resources_config_path_.value();
     if (!ExtractConfig(path, &context, &options_)) {
diff --git a/tools/aapt2/cmd/Optimize.h b/tools/aapt2/cmd/Optimize.h
index ce3b2ad..5070ccc 100644
--- a/tools/aapt2/cmd/Optimize.h
+++ b/tools/aapt2/cmd/Optimize.h
@@ -78,10 +78,6 @@
             "All the resources that would be unused on devices of the given densities will be \n"
             "removed from the APK.",
         &target_densities_);
-    AddOptionalFlag("--whitelist-path",
-        "Path to the whitelist.cfg file containing whitelisted resources \n"
-            "whose names should not be altered in final resource tables.",
-        &whitelist_path_);
     AddOptionalFlag("--resources-config-path",
         "Path to the resources.cfg file containing the list of resources and \n"
             "directives to each resource. \n"
@@ -127,7 +123,6 @@
                                const std::string &file_path);
 
   Maybe<std::string> config_path_;
-  Maybe<std::string> whitelist_path_;
   Maybe<std::string> resources_config_path_;
   Maybe<std::string> target_densities_;
   std::vector<std::string> configs_;
diff --git a/tools/aapt2/cmd/Optimize_test.cpp b/tools/aapt2/cmd/Optimize_test.cpp
new file mode 100644
index 0000000..ac681e8
--- /dev/null
+++ b/tools/aapt2/cmd/Optimize_test.cpp
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Optimize.h"
+
+#include "AppInfo.h"
+#include "Diagnostics.h"
+#include "LoadedApk.h"
+#include "Resource.h"
+#include "test/Test.h"
+
+using testing::Contains;
+using testing::Eq;
+
+namespace aapt {
+
+bool ParseConfig(const std::string&, IAaptContext*, OptimizeOptions*);
+
+using OptimizeTest = CommandTestFixture;
+
+TEST_F(OptimizeTest, ParseConfigWithNoCollapseExemptions) {
+  const std::string& content = R"(
+string/foo#no_collapse
+dimen/bar#no_collapse
+)";
+  aapt::test::Context context;
+  OptimizeOptions options;
+  ParseConfig(content, &context, &options);
+
+  const std::set<ResourceName>& name_collapse_exemptions =
+      options.table_flattener_options.name_collapse_exemptions;
+
+  ASSERT_THAT(name_collapse_exemptions.size(), Eq(2));
+  EXPECT_THAT(name_collapse_exemptions, Contains(ResourceName({}, ResourceType::kString, "foo")));
+  EXPECT_THAT(name_collapse_exemptions, Contains(ResourceName({}, ResourceType::kDimen, "bar")));
+}
+
+TEST_F(OptimizeTest, ParseConfigWithNoObfuscateExemptions) {
+  const std::string& content = R"(
+string/foo#no_obfuscate
+dimen/bar#no_obfuscate
+)";
+  aapt::test::Context context;
+  OptimizeOptions options;
+  ParseConfig(content, &context, &options);
+
+  const std::set<ResourceName>& name_collapse_exemptions =
+      options.table_flattener_options.name_collapse_exemptions;
+
+  ASSERT_THAT(name_collapse_exemptions.size(), Eq(2));
+  EXPECT_THAT(name_collapse_exemptions, Contains(ResourceName({}, ResourceType::kString, "foo")));
+  EXPECT_THAT(name_collapse_exemptions, Contains(ResourceName({}, ResourceType::kDimen, "bar")));
+}
+
+}  // namespace aapt
diff --git a/tools/aapt2/format/binary/TableFlattener.cpp b/tools/aapt2/format/binary/TableFlattener.cpp
index b932117..58e232c 100644
--- a/tools/aapt2/format/binary/TableFlattener.cpp
+++ b/tools/aapt2/format/binary/TableFlattener.cpp
@@ -228,14 +228,15 @@
  public:
   PackageFlattener(IAaptContext* context, ResourceTablePackage* package,
                    const std::map<size_t, std::string>* shared_libs, bool use_sparse_entries,
-                   bool collapse_key_stringpool, const std::set<std::string>& whitelisted_resources)
+                   bool collapse_key_stringpool,
+                   const std::set<ResourceName>& name_collapse_exemptions)
       : context_(context),
         diag_(context->GetDiagnostics()),
         package_(package),
         shared_libs_(shared_libs),
         use_sparse_entries_(use_sparse_entries),
         collapse_key_stringpool_(collapse_key_stringpool),
-        whitelisted_resources_(whitelisted_resources) {
+        name_collapse_exemptions_(name_collapse_exemptions) {
   }
 
   bool FlattenPackage(BigBuffer* buffer) {
@@ -652,11 +653,12 @@
 
       for (ResourceEntry* entry : sorted_entries) {
         uint32_t local_key_index;
+        ResourceName resource_name({}, type->type, entry->name);
         if (!collapse_key_stringpool_ ||
-            whitelisted_resources_.find(entry->name) != whitelisted_resources_.end()) {
+            name_collapse_exemptions_.find(resource_name) != name_collapse_exemptions_.end()) {
           local_key_index = (uint32_t)key_pool_.MakeRef(entry->name).index();
         } else {
-          // resource isn't whitelisted, add it as obfuscated value
+          // resource isn't exempt from collapse, add it as obfuscated value
           local_key_index = (uint32_t)key_pool_.MakeRef(obfuscated_resource_name).index();
         }
         // Group values by configuration.
@@ -712,7 +714,7 @@
   StringPool type_pool_;
   StringPool key_pool_;
   bool collapse_key_stringpool_;
-  const std::set<std::string>& whitelisted_resources_;
+  const std::set<ResourceName>& name_collapse_exemptions_;
 };
 
 }  // namespace
@@ -760,7 +762,7 @@
 
     PackageFlattener flattener(context, package.get(), &table->included_packages_,
                                options_.use_sparse_entries, options_.collapse_key_stringpool,
-                               options_.whitelisted_resources);
+                               options_.name_collapse_exemptions);
     if (!flattener.FlattenPackage(&package_buffer)) {
       return false;
     }
diff --git a/tools/aapt2/format/binary/TableFlattener.h b/tools/aapt2/format/binary/TableFlattener.h
index 73c1729..4360db1 100644
--- a/tools/aapt2/format/binary/TableFlattener.h
+++ b/tools/aapt2/format/binary/TableFlattener.h
@@ -19,6 +19,7 @@
 
 #include "android-base/macros.h"
 
+#include "Resource.h"
 #include "ResourceTable.h"
 #include "process/IResourceTableConsumer.h"
 #include "util/BigBuffer.h"
@@ -41,8 +42,8 @@
   // have name indices that point to this single value
   bool collapse_key_stringpool = false;
 
-  // Set of whitelisted resource names to avoid altering in key stringpool
-  std::set<std::string> whitelisted_resources;
+  // Set of resources to avoid collapsing to a single entry in key stringpool.
+  std::set<ResourceName> name_collapse_exemptions;
 
   // Map from original resource paths to shortened resource paths.
   std::map<std::string, std::string> shortened_path_map;
diff --git a/tools/aapt2/format/binary/TableFlattener_test.cpp b/tools/aapt2/format/binary/TableFlattener_test.cpp
index a940923..8fbdd7f 100644
--- a/tools/aapt2/format/binary/TableFlattener_test.cpp
+++ b/tools/aapt2/format/binary/TableFlattener_test.cpp
@@ -518,7 +518,7 @@
   ASSERT_FALSE(Flatten(context.get(), {}, table.get(), &result));
 }
 
-TEST_F(TableFlattenerTest, ObfuscatingResourceNamesNoWhitelistSucceeds) {
+TEST_F(TableFlattenerTest, ObfuscatingResourceNamesNoNameCollapseExemptionsSucceeds) {
   std::unique_ptr<ResourceTable> table =
       test::ResourceTableBuilder()
           .SetPackageId("com.app.test", 0x7f)
@@ -572,7 +572,7 @@
                      ResourceId(0x7f050000), {}, Res_value::TYPE_STRING, (uint32_t)idx, 0u));
 }
 
-TEST_F(TableFlattenerTest, ObfuscatingResourceNamesWithWhitelistSucceeds) {
+TEST_F(TableFlattenerTest, ObfuscatingResourceNamesWithNameCollapseExemptionsSucceeds) {
   std::unique_ptr<ResourceTable> table =
       test::ResourceTableBuilder()
           .SetPackageId("com.app.test", 0x7f)
@@ -591,21 +591,22 @@
 
   TableFlattenerOptions options;
   options.collapse_key_stringpool = true;
-  options.whitelisted_resources.insert("test");
-  options.whitelisted_resources.insert("three");
+  options.name_collapse_exemptions.insert(ResourceName({}, ResourceType::kId, "one"));
+  options.name_collapse_exemptions.insert(ResourceName({}, ResourceType::kString, "test"));
   ResTable res_table;
 
   ASSERT_TRUE(Flatten(context_.get(), options, table.get(), &res_table));
 
-  EXPECT_TRUE(Exists(&res_table, "com.app.test:id/0_resource_name_obfuscated",
+  EXPECT_TRUE(Exists(&res_table, "com.app.test:id/one",
                      ResourceId(0x7f020000), {}, Res_value::TYPE_INT_BOOLEAN, 0u, 0u));
 
   EXPECT_TRUE(Exists(&res_table, "com.app.test:id/0_resource_name_obfuscated",
                      ResourceId(0x7f020001), {}, Res_value::TYPE_INT_BOOLEAN, 0u, 0u));
 
-  EXPECT_TRUE(Exists(&res_table, "com.app.test:id/three", ResourceId(0x7f020002), {},
-                     Res_value::TYPE_REFERENCE, 0x7f020000u, 0u));
+  EXPECT_TRUE(Exists(&res_table, "com.app.test:id/0_resource_name_obfuscated",
+                     ResourceId(0x7f020002), {}, Res_value::TYPE_REFERENCE, 0x7f020000u, 0u));
 
+  // Note that this resource is also named "one", but it's a different type, so gets obfuscated.
   EXPECT_TRUE(Exists(&res_table, "com.app.test:integer/0_resource_name_obfuscated",
                      ResourceId(0x7f030000), {}, Res_value::TYPE_INT_DEC, 1u,
                      ResTable_config::CONFIG_VERSION));