Merge "Deprecate SystemApi that was accidently made public in P"
diff --git a/Android.bp b/Android.bp
index 5896851..1d51da1 100644
--- a/Android.bp
+++ b/Android.bp
@@ -696,10 +696,6 @@
         "android.hardware.radio-V1.2-java",
         "android.hardware.radio-V1.3-java",
         "android.hardware.radio-V1.4-java",
-        "android.hardware.radio.config-V1.0-java",
-        "android.hardware.radio.config-V1.1-java",
-        "android.hardware.radio.config-V1.2-java",
-        "android.hardware.radio.deprecated-V1.0-java",
         "android.hardware.thermal-V1.0-java-constants",
         "android.hardware.tv.input-V1.0-java-constants",
         "android.hardware.usb-V1.0-java-constants",
@@ -710,7 +706,6 @@
         "android.hardware.vibrator-V1.2-java",
         "android.hardware.wifi-V1.0-java-constants",
         "networkstack-aidl-framework-java",
-        "netd_aidl_parcelables-java",
     ],
 
     required: [
diff --git a/api/current.txt b/api/current.txt
index 733dd0c..098d0e8 100755
--- a/api/current.txt
+++ b/api/current.txt
@@ -27348,16 +27348,25 @@
   }
 
   public final class LinkProperties implements android.os.Parcelable {
+    ctor public LinkProperties();
+    method public boolean addRoute(@NonNull android.net.RouteInfo);
+    method public void clear();
     method public int describeContents();
-    method public java.util.List<java.net.InetAddress> getDnsServers();
-    method public String getDomains();
-    method public android.net.ProxyInfo getHttpProxy();
+    method @NonNull public java.util.List<java.net.InetAddress> getDnsServers();
+    method @Nullable public String getDomains();
+    method @Nullable public android.net.ProxyInfo getHttpProxy();
     method @Nullable public String getInterfaceName();
-    method public java.util.List<android.net.LinkAddress> getLinkAddresses();
+    method @NonNull public java.util.List<android.net.LinkAddress> getLinkAddresses();
     method public int getMtu();
     method @Nullable public String getPrivateDnsServerName();
-    method public java.util.List<android.net.RouteInfo> getRoutes();
+    method @NonNull public java.util.List<android.net.RouteInfo> getRoutes();
     method public boolean isPrivateDnsActive();
+    method public void setDnsServers(@NonNull java.util.Collection<java.net.InetAddress>);
+    method public void setDomains(@Nullable String);
+    method public void setHttpProxy(@Nullable android.net.ProxyInfo);
+    method public void setInterfaceName(@Nullable String);
+    method public void setLinkAddresses(@NonNull java.util.Collection<android.net.LinkAddress>);
+    method public void setMtu(int);
     method public void writeToParcel(android.os.Parcel, int);
     field public static final android.os.Parcelable.Creator<android.net.LinkProperties> CREATOR;
   }
@@ -27465,6 +27474,7 @@
     method public int describeContents();
     method public int getLinkDownstreamBandwidthKbps();
     method public int getLinkUpstreamBandwidthKbps();
+    method public int getSignalStrength();
     method @Nullable public android.net.TransportInfo getTransportInfo();
     method public boolean hasCapability(int);
     method public boolean hasTransport(int);
@@ -27493,6 +27503,7 @@
     field public static final int NET_CAPABILITY_VALIDATED = 16; // 0x10
     field public static final int NET_CAPABILITY_WIFI_P2P = 6; // 0x6
     field public static final int NET_CAPABILITY_XCAP = 9; // 0x9
+    field public static final int SIGNAL_STRENGTH_UNSPECIFIED = -2147483648; // 0x80000000
     field public static final int TRANSPORT_BLUETOOTH = 2; // 0x2
     field public static final int TRANSPORT_CELLULAR = 0; // 0x0
     field public static final int TRANSPORT_ETHERNET = 3; // 0x3
@@ -27504,7 +27515,7 @@
 
   @Deprecated public class NetworkInfo implements android.os.Parcelable {
     method @Deprecated public int describeContents();
-    method @Deprecated public android.net.NetworkInfo.DetailedState getDetailedState();
+    method @Deprecated @NonNull public android.net.NetworkInfo.DetailedState getDetailedState();
     method @Deprecated public String getExtraInfo();
     method @Deprecated public String getReason();
     method @Deprecated public android.net.NetworkInfo.State getState();
@@ -40424,12 +40435,12 @@
     method public static java.io.FileDescriptor accept(java.io.FileDescriptor, java.net.InetSocketAddress) throws android.system.ErrnoException, java.net.SocketException;
     method public static boolean access(String, int) throws android.system.ErrnoException;
     method public static void bind(java.io.FileDescriptor, java.net.InetAddress, int) throws android.system.ErrnoException, java.net.SocketException;
-    method public static void bind(java.io.FileDescriptor, java.net.SocketAddress) throws android.system.ErrnoException, java.net.SocketException;
+    method public static void bind(@NonNull java.io.FileDescriptor, @NonNull java.net.SocketAddress) throws android.system.ErrnoException, java.net.SocketException;
     method public static void chmod(String, int) throws android.system.ErrnoException;
     method public static void chown(String, int, int) throws android.system.ErrnoException;
     method public static void close(java.io.FileDescriptor) throws android.system.ErrnoException;
     method public static void connect(java.io.FileDescriptor, java.net.InetAddress, int) throws android.system.ErrnoException, java.net.SocketException;
-    method public static void connect(java.io.FileDescriptor, java.net.SocketAddress) throws android.system.ErrnoException, java.net.SocketException;
+    method public static void connect(@NonNull java.io.FileDescriptor, @NonNull java.net.SocketAddress) throws android.system.ErrnoException, java.net.SocketException;
     method public static java.io.FileDescriptor dup(java.io.FileDescriptor) throws android.system.ErrnoException;
     method public static java.io.FileDescriptor dup2(java.io.FileDescriptor, int) throws android.system.ErrnoException;
     method public static String[] environ();
@@ -40494,7 +40505,7 @@
     method public static long sendfile(java.io.FileDescriptor, java.io.FileDescriptor, android.system.Int64Ref, long) throws android.system.ErrnoException;
     method public static int sendto(java.io.FileDescriptor, java.nio.ByteBuffer, int, java.net.InetAddress, int) throws android.system.ErrnoException, java.net.SocketException;
     method public static int sendto(java.io.FileDescriptor, byte[], int, int, int, java.net.InetAddress, int) throws android.system.ErrnoException, java.net.SocketException;
-    method public static int sendto(java.io.FileDescriptor, byte[], int, int, int, java.net.SocketAddress) throws android.system.ErrnoException, java.net.SocketException;
+    method public static int sendto(@NonNull java.io.FileDescriptor, @NonNull byte[], int, int, int, @Nullable java.net.SocketAddress) throws android.system.ErrnoException, java.net.SocketException;
     method @Deprecated public static void setegid(int) throws android.system.ErrnoException;
     method public static void setenv(String, String, boolean) throws android.system.ErrnoException;
     method @Deprecated public static void seteuid(int) throws android.system.ErrnoException;
@@ -42202,6 +42213,7 @@
     field public static final String KEY_EDITABLE_ENHANCED_4G_LTE_BOOL = "editable_enhanced_4g_lte_bool";
     field public static final String KEY_EDITABLE_VOICEMAIL_NUMBER_BOOL = "editable_voicemail_number_bool";
     field public static final String KEY_EDITABLE_VOICEMAIL_NUMBER_SETTING_BOOL = "editable_voicemail_number_setting_bool";
+    field public static final String KEY_EMERGENCY_NUMBER_PREFIX_STRING_ARRAY = "emergency_number_prefix_string_array";
     field public static final String KEY_ENABLE_DIALER_KEY_VIBRATION_BOOL = "enable_dialer_key_vibration_bool";
     field public static final String KEY_ENHANCED_4G_LTE_ON_BY_DEFAULT_BOOL = "enhanced_4g_lte_on_by_default_bool";
     field public static final String KEY_FORCE_HOME_NETWORK_BOOL = "force_home_network_bool";
@@ -42351,12 +42363,12 @@
   }
 
   public final class CellIdentityNr extends android.telephony.CellIdentity {
-    method public String getMccString();
-    method public String getMncString();
+    method @Nullable public String getMccString();
+    method @Nullable public String getMncString();
     method public long getNci();
-    method public int getNrarfcn();
-    method public int getPci();
-    method public int getTac();
+    method @IntRange(from=0, to=3279165) public int getNrarfcn();
+    method @IntRange(from=0, to=1007) public int getPci();
+    method @IntRange(from=0, to=65535) public int getTac();
     method public void writeToParcel(android.os.Parcel, int);
     field public static final android.os.Parcelable.Creator<android.telephony.CellIdentityNr> CREATOR;
   }
@@ -42423,8 +42435,8 @@
   }
 
   public final class CellInfoNr extends android.telephony.CellInfo {
-    method public android.telephony.CellIdentity getCellIdentity();
-    method public android.telephony.CellSignalStrength getCellSignalStrength();
+    method @NonNull public android.telephony.CellIdentity getCellIdentity();
+    method @NonNull public android.telephony.CellSignalStrength getCellSignalStrength();
     method public void writeToParcel(android.os.Parcel, int);
     field public static final android.os.Parcelable.Creator<android.telephony.CellInfoNr> CREATOR;
   }
@@ -43109,7 +43121,7 @@
     method @RequiresPermission(anyOf={android.Manifest.permission.ACCESS_NETWORK_STATE, android.Manifest.permission.READ_PHONE_STATE}) public boolean isDataRoamingEnabled();
     method public boolean isEmergencyNumber(@NonNull String);
     method public boolean isHearingAidCompatibilitySupported();
-    method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public boolean isMultisimSupported();
+    method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public int isMultiSimSupported();
     method public boolean isNetworkRoaming();
     method public boolean isRttSupported();
     method public boolean isSmsCapable();
@@ -43188,6 +43200,9 @@
     field public static final String EXTRA_SUBSCRIPTION_ID = "android.telephony.extra.SUBSCRIPTION_ID";
     field public static final String EXTRA_VOICEMAIL_NUMBER = "android.telephony.extra.VOICEMAIL_NUMBER";
     field public static final String METADATA_HIDE_VOICEMAIL_SETTINGS_MENU = "android.telephony.HIDE_VOICEMAIL_SETTINGS_MENU";
+    field public static final int MULTISIM_ALLOWED = 0; // 0x0
+    field public static final int MULTISIM_NOT_SUPPORTED_BY_CARRIER = 2; // 0x2
+    field public static final int MULTISIM_NOT_SUPPORTED_BY_HARDWARE = 1; // 0x1
     field public static final int NETWORK_TYPE_1xRTT = 7; // 0x7
     field public static final int NETWORK_TYPE_CDMA = 4; // 0x4
     field public static final int NETWORK_TYPE_EDGE = 2; // 0x2
diff --git a/api/system-current.txt b/api/system-current.txt
index c1f1ce4..193ead6 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -3085,8 +3085,8 @@
 package android.net {
 
   public class CaptivePortal implements android.os.Parcelable {
-    ctor public CaptivePortal(android.os.IBinder);
-    method public void logEvent(int, String);
+    ctor public CaptivePortal(@NonNull android.os.IBinder);
+    method public void logEvent(int, @NonNull String);
     method public void useNetwork();
     field public static final int APP_RETURN_DISMISSED = 0; // 0x0
     field public static final int APP_RETURN_UNWANTED = 1; // 0x1
@@ -3102,7 +3102,7 @@
     method @RequiresPermission(anyOf={android.Manifest.permission.TETHER_PRIVILEGED, android.Manifest.permission.WRITE_SETTINGS}) public boolean isTetheringSupported();
     method @RequiresPermission(android.Manifest.permission.TETHER_PRIVILEGED) public void registerTetheringEventCallback(@NonNull java.util.concurrent.Executor, @NonNull android.net.ConnectivityManager.OnTetheringEventCallback);
     method @RequiresPermission(anyOf={"android.permission.NETWORK_SETTINGS", android.Manifest.permission.NETWORK_SETUP_WIZARD, "android.permission.NETWORK_STACK"}) public void setAirplaneMode(boolean);
-    method @RequiresPermission(android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK) public void startCaptivePortalApp(android.net.Network, android.os.Bundle);
+    method @RequiresPermission(android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK) public void startCaptivePortalApp(@NonNull android.net.Network, @NonNull android.os.Bundle);
     method @RequiresPermission(android.Manifest.permission.TETHER_PRIVILEGED) public void startTethering(int, boolean, android.net.ConnectivityManager.OnStartTetheringCallback);
     method @RequiresPermission(android.Manifest.permission.TETHER_PRIVILEGED) public void startTethering(int, boolean, android.net.ConnectivityManager.OnStartTetheringCallback, android.os.Handler);
     method @RequiresPermission(android.Manifest.permission.TETHER_PRIVILEGED) public void stopTethering(int);
@@ -3133,65 +3133,55 @@
   }
 
   public final class IpPrefix implements android.os.Parcelable {
-    ctor public IpPrefix(java.net.InetAddress, int);
-    ctor public IpPrefix(String);
+    ctor public IpPrefix(@NonNull java.net.InetAddress, int);
+    ctor public IpPrefix(@NonNull String);
   }
 
   public class LinkAddress implements android.os.Parcelable {
     ctor public LinkAddress(java.net.InetAddress, int, int, int);
     ctor public LinkAddress(@NonNull java.net.InetAddress, int);
     ctor public LinkAddress(@NonNull String);
-    ctor public LinkAddress(String, int, int);
+    ctor public LinkAddress(@NonNull String, int, int);
     method public boolean isGlobalPreferred();
-    method public boolean isIPv4();
-    method public boolean isIPv6();
-    method public boolean isSameAddressAs(android.net.LinkAddress);
+    method public boolean isIpv4();
+    method public boolean isIpv6();
+    method public boolean isSameAddressAs(@Nullable android.net.LinkAddress);
   }
 
   public final class LinkProperties implements android.os.Parcelable {
-    ctor public LinkProperties();
-    ctor public LinkProperties(android.net.LinkProperties);
-    method public boolean addDnsServer(java.net.InetAddress);
-    method public boolean addLinkAddress(android.net.LinkAddress);
-    method public boolean addRoute(android.net.RouteInfo);
-    method public void clear();
+    ctor public LinkProperties(@Nullable android.net.LinkProperties);
+    method public boolean addDnsServer(@NonNull java.net.InetAddress);
+    method public boolean addLinkAddress(@NonNull android.net.LinkAddress);
     method @Nullable public android.net.IpPrefix getNat64Prefix();
-    method public java.util.List<java.net.InetAddress> getPcscfServers();
-    method public String getTcpBufferSizes();
-    method public java.util.List<java.net.InetAddress> getValidatedPrivateDnsServers();
-    method public boolean hasGlobalIPv6Address();
-    method public boolean hasIPv4Address();
-    method public boolean hasIPv6DefaultRoute();
-    method public boolean isIPv4Provisioned();
-    method public boolean isIPv6Provisioned();
+    method @NonNull public java.util.List<java.net.InetAddress> getPcscfServers();
+    method @Nullable public String getTcpBufferSizes();
+    method @NonNull public java.util.List<java.net.InetAddress> getValidatedPrivateDnsServers();
+    method public boolean hasGlobalIpv6Address();
+    method public boolean hasIpv4Address();
+    method public boolean hasIpv6DefaultRoute();
+    method public boolean isIpv4Provisioned();
+    method public boolean isIpv6Provisioned();
     method public boolean isProvisioned();
-    method public boolean isReachable(java.net.InetAddress);
-    method public boolean removeDnsServer(java.net.InetAddress);
-    method public boolean removeLinkAddress(android.net.LinkAddress);
-    method public boolean removeRoute(android.net.RouteInfo);
-    method public void setDnsServers(java.util.Collection<java.net.InetAddress>);
-    method public void setDomains(String);
-    method public void setHttpProxy(android.net.ProxyInfo);
-    method public void setInterfaceName(String);
-    method public void setLinkAddresses(java.util.Collection<android.net.LinkAddress>);
-    method public void setMtu(int);
-    method public void setNat64Prefix(android.net.IpPrefix);
-    method public void setPcscfServers(java.util.Collection<java.net.InetAddress>);
+    method public boolean isReachable(@NonNull java.net.InetAddress);
+    method public boolean removeDnsServer(@NonNull java.net.InetAddress);
+    method public boolean removeLinkAddress(@NonNull android.net.LinkAddress);
+    method public boolean removeRoute(@NonNull android.net.RouteInfo);
+    method public void setNat64Prefix(@Nullable android.net.IpPrefix);
+    method public void setPcscfServers(@NonNull java.util.Collection<java.net.InetAddress>);
     method public void setPrivateDnsServerName(@Nullable String);
-    method public void setTcpBufferSizes(String);
+    method public void setTcpBufferSizes(@Nullable String);
     method public void setUsePrivateDns(boolean);
-    method public void setValidatedPrivateDnsServers(java.util.Collection<java.net.InetAddress>);
+    method public void setValidatedPrivateDnsServers(@NonNull java.util.Collection<java.net.InetAddress>);
   }
 
   public class Network implements android.os.Parcelable {
-    ctor public Network(android.net.Network);
-    method public android.net.Network getPrivateDnsBypassingCopy();
+    ctor public Network(@NonNull android.net.Network);
+    method @NonNull public android.net.Network getPrivateDnsBypassingCopy();
   }
 
   public final class NetworkCapabilities implements android.os.Parcelable {
-    method public int getSignalStrength();
-    method public int[] getTransportTypes();
-    method public boolean satisfiedByNetworkCapabilities(android.net.NetworkCapabilities);
+    method @NonNull public int[] getTransportTypes();
+    method public boolean satisfiedByNetworkCapabilities(@Nullable android.net.NetworkCapabilities);
     field public static final int NET_CAPABILITY_OEM_PAID = 22; // 0x16
     field public static final int NET_CAPABILITY_PARTIAL_CONNECTIVITY = 24; // 0x18
   }
@@ -3213,7 +3203,7 @@
   }
 
   public static class NetworkRequest.Builder {
-    method public android.net.NetworkRequest.Builder setSignalStrength(int);
+    method @NonNull public android.net.NetworkRequest.Builder setSignalStrength(int);
   }
 
   public class NetworkScoreManager {
@@ -3237,7 +3227,7 @@
   }
 
   public final class RouteInfo implements android.os.Parcelable {
-    ctor public RouteInfo(android.net.IpPrefix, java.net.InetAddress, String, int);
+    ctor public RouteInfo(@Nullable android.net.IpPrefix, @Nullable java.net.InetAddress, @Nullable String, int);
     method public int getType();
     field public static final int RTN_THROW = 9; // 0x9
     field public static final int RTN_UNICAST = 1; // 0x1
@@ -3277,18 +3267,18 @@
 
   public final class StaticIpConfiguration implements android.os.Parcelable {
     ctor public StaticIpConfiguration();
-    ctor public StaticIpConfiguration(android.net.StaticIpConfiguration);
-    method public void addDnsServer(java.net.InetAddress);
+    ctor public StaticIpConfiguration(@Nullable android.net.StaticIpConfiguration);
+    method public void addDnsServer(@NonNull java.net.InetAddress);
     method public void clear();
     method public int describeContents();
-    method public java.util.List<java.net.InetAddress> getDnsServers();
-    method public String getDomains();
-    method public java.net.InetAddress getGateway();
-    method public android.net.LinkAddress getIpAddress();
-    method public java.util.List<android.net.RouteInfo> getRoutes(String);
-    method public void setDomains(String);
-    method public void setGateway(java.net.InetAddress);
-    method public void setIpAddress(android.net.LinkAddress);
+    method @NonNull public java.util.List<java.net.InetAddress> getDnsServers();
+    method @Nullable public String getDomains();
+    method @Nullable public java.net.InetAddress getGateway();
+    method @Nullable public android.net.LinkAddress getIpAddress();
+    method @NonNull public java.util.List<android.net.RouteInfo> getRoutes(String);
+    method public void setDomains(@Nullable String);
+    method public void setGateway(@Nullable java.net.InetAddress);
+    method public void setIpAddress(@Nullable android.net.LinkAddress);
     method public void writeToParcel(android.os.Parcel, int);
     field public static final android.os.Parcelable.Creator<android.net.StaticIpConfiguration> CREATOR;
   }
@@ -3323,11 +3313,14 @@
 
 package android.net.apf {
 
-  public class ApfCapabilities {
+  public final class ApfCapabilities implements android.os.Parcelable {
     ctor public ApfCapabilities(int, int, int);
-    method public static boolean getApfDrop8023Frames(android.content.Context);
-    method public static int[] getApfEthTypeBlackList(android.content.Context);
+    method public int describeContents();
+    method public static boolean getApfDrop8023Frames(@NonNull android.content.Context);
+    method @NonNull public static int[] getApfEthTypeBlackList(@NonNull android.content.Context);
     method public boolean hasDataAccess();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.net.apf.ApfCapabilities> CREATOR;
     field public final int apfPacketFormat;
     field public final int apfVersionSupported;
     field public final int maximumApfProgramSize;
@@ -3339,28 +3332,28 @@
 
   public final class CaptivePortalProbeResult {
     ctor public CaptivePortalProbeResult(int);
-    ctor public CaptivePortalProbeResult(int, String, String);
-    ctor public CaptivePortalProbeResult(int, String, String, android.net.captiveportal.CaptivePortalProbeSpec);
+    ctor public CaptivePortalProbeResult(int, @Nullable String, @Nullable String);
+    ctor public CaptivePortalProbeResult(int, @Nullable String, @Nullable String, @Nullable android.net.captiveportal.CaptivePortalProbeSpec);
     method public boolean isFailed();
     method public boolean isPartialConnectivity();
     method public boolean isPortal();
     method public boolean isSuccessful();
-    field public static final android.net.captiveportal.CaptivePortalProbeResult FAILED;
+    field @NonNull public static final android.net.captiveportal.CaptivePortalProbeResult FAILED;
     field public static final int FAILED_CODE = 599; // 0x257
     field public static final android.net.captiveportal.CaptivePortalProbeResult PARTIAL;
     field public static final int PORTAL_CODE = 302; // 0x12e
-    field public static final android.net.captiveportal.CaptivePortalProbeResult SUCCESS;
+    field @NonNull public static final android.net.captiveportal.CaptivePortalProbeResult SUCCESS;
     field public static final int SUCCESS_CODE = 204; // 0xcc
-    field public final String detectUrl;
+    field @Nullable public final String detectUrl;
     field @Nullable public final android.net.captiveportal.CaptivePortalProbeSpec probeSpec;
-    field public final String redirectUrl;
+    field @Nullable public final String redirectUrl;
   }
 
   public abstract class CaptivePortalProbeSpec {
-    method public String getEncodedSpec();
-    method public abstract android.net.captiveportal.CaptivePortalProbeResult getResult(int, @Nullable String);
-    method public java.net.URL getUrl();
-    method public static java.util.Collection<android.net.captiveportal.CaptivePortalProbeSpec> parseCaptivePortalProbeSpecs(String);
+    method @NonNull public String getEncodedSpec();
+    method @NonNull public abstract android.net.captiveportal.CaptivePortalProbeResult getResult(int, @Nullable String);
+    method @NonNull public java.net.URL getUrl();
+    method @NonNull public static java.util.Collection<android.net.captiveportal.CaptivePortalProbeSpec> parseCaptivePortalProbeSpecs(@NonNull String);
     method @Nullable public static android.net.captiveportal.CaptivePortalProbeSpec parseSpecOrNull(@Nullable String);
   }
 
@@ -3371,78 +3364,78 @@
   public final class ApfProgramEvent implements android.net.metrics.IpConnectivityLog.Event {
   }
 
-  public static class ApfProgramEvent.Builder {
+  public static final class ApfProgramEvent.Builder {
     ctor public ApfProgramEvent.Builder();
-    method public android.net.metrics.ApfProgramEvent build();
-    method public android.net.metrics.ApfProgramEvent.Builder setActualLifetime(long);
-    method public android.net.metrics.ApfProgramEvent.Builder setCurrentRas(int);
-    method public android.net.metrics.ApfProgramEvent.Builder setFilteredRas(int);
-    method public android.net.metrics.ApfProgramEvent.Builder setFlags(boolean, boolean);
-    method public android.net.metrics.ApfProgramEvent.Builder setLifetime(long);
-    method public android.net.metrics.ApfProgramEvent.Builder setProgramLength(int);
+    method @NonNull public android.net.metrics.ApfProgramEvent build();
+    method @NonNull public android.net.metrics.ApfProgramEvent.Builder setActualLifetime(long);
+    method @NonNull public android.net.metrics.ApfProgramEvent.Builder setCurrentRas(int);
+    method @NonNull public android.net.metrics.ApfProgramEvent.Builder setFilteredRas(int);
+    method @NonNull public android.net.metrics.ApfProgramEvent.Builder setFlags(boolean, boolean);
+    method @NonNull public android.net.metrics.ApfProgramEvent.Builder setLifetime(long);
+    method @NonNull public android.net.metrics.ApfProgramEvent.Builder setProgramLength(int);
   }
 
   public final class ApfStats implements android.net.metrics.IpConnectivityLog.Event {
   }
 
-  public static class ApfStats.Builder {
+  public static final class ApfStats.Builder {
     ctor public ApfStats.Builder();
-    method public android.net.metrics.ApfStats build();
-    method public android.net.metrics.ApfStats.Builder setDroppedRas(int);
-    method public android.net.metrics.ApfStats.Builder setDurationMs(long);
-    method public android.net.metrics.ApfStats.Builder setMatchingRas(int);
-    method public android.net.metrics.ApfStats.Builder setMaxProgramSize(int);
-    method public android.net.metrics.ApfStats.Builder setParseErrors(int);
-    method public android.net.metrics.ApfStats.Builder setProgramUpdates(int);
-    method public android.net.metrics.ApfStats.Builder setProgramUpdatesAll(int);
-    method public android.net.metrics.ApfStats.Builder setProgramUpdatesAllowingMulticast(int);
-    method public android.net.metrics.ApfStats.Builder setReceivedRas(int);
-    method public android.net.metrics.ApfStats.Builder setZeroLifetimeRas(int);
+    method @NonNull public android.net.metrics.ApfStats build();
+    method @NonNull public android.net.metrics.ApfStats.Builder setDroppedRas(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setDurationMs(long);
+    method @NonNull public android.net.metrics.ApfStats.Builder setMatchingRas(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setMaxProgramSize(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setParseErrors(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setProgramUpdates(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setProgramUpdatesAll(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setProgramUpdatesAllowingMulticast(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setReceivedRas(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setZeroLifetimeRas(int);
   }
 
   public final class DhcpClientEvent implements android.net.metrics.IpConnectivityLog.Event {
   }
 
-  public static class DhcpClientEvent.Builder {
+  public static final class DhcpClientEvent.Builder {
     ctor public DhcpClientEvent.Builder();
-    method public android.net.metrics.DhcpClientEvent build();
-    method public android.net.metrics.DhcpClientEvent.Builder setDurationMs(int);
-    method public android.net.metrics.DhcpClientEvent.Builder setMsg(String);
+    method @NonNull public android.net.metrics.DhcpClientEvent build();
+    method @NonNull public android.net.metrics.DhcpClientEvent.Builder setDurationMs(int);
+    method @NonNull public android.net.metrics.DhcpClientEvent.Builder setMsg(String);
   }
 
   public final class DhcpErrorEvent implements android.net.metrics.IpConnectivityLog.Event {
     ctor public DhcpErrorEvent(int);
     method public static int errorCodeWithOption(int, int);
-    field public static final int BOOTP_TOO_SHORT;
-    field public static final int BUFFER_UNDERFLOW;
-    field public static final int DHCP_BAD_MAGIC_COOKIE;
+    field public static final int BOOTP_TOO_SHORT = 67174400; // 0x4010000
+    field public static final int BUFFER_UNDERFLOW = 83951616; // 0x5010000
+    field public static final int DHCP_BAD_MAGIC_COOKIE = 67239936; // 0x4020000
     field public static final int DHCP_ERROR = 4; // 0x4
-    field public static final int DHCP_INVALID_OPTION_LENGTH;
-    field public static final int DHCP_NO_COOKIE;
-    field public static final int DHCP_NO_MSG_TYPE;
-    field public static final int DHCP_UNKNOWN_MSG_TYPE;
+    field public static final int DHCP_INVALID_OPTION_LENGTH = 67305472; // 0x4030000
+    field public static final int DHCP_NO_COOKIE = 67502080; // 0x4060000
+    field public static final int DHCP_NO_MSG_TYPE = 67371008; // 0x4040000
+    field public static final int DHCP_UNKNOWN_MSG_TYPE = 67436544; // 0x4050000
     field public static final int L2_ERROR = 1; // 0x1
-    field public static final int L2_TOO_SHORT;
-    field public static final int L2_WRONG_ETH_TYPE;
+    field public static final int L2_TOO_SHORT = 16842752; // 0x1010000
+    field public static final int L2_WRONG_ETH_TYPE = 16908288; // 0x1020000
     field public static final int L3_ERROR = 2; // 0x2
-    field public static final int L3_INVALID_IP;
-    field public static final int L3_NOT_IPV4;
-    field public static final int L3_TOO_SHORT;
+    field public static final int L3_INVALID_IP = 33751040; // 0x2030000
+    field public static final int L3_NOT_IPV4 = 33685504; // 0x2020000
+    field public static final int L3_TOO_SHORT = 33619968; // 0x2010000
     field public static final int L4_ERROR = 3; // 0x3
-    field public static final int L4_NOT_UDP;
-    field public static final int L4_WRONG_PORT;
+    field public static final int L4_NOT_UDP = 50397184; // 0x3010000
+    field public static final int L4_WRONG_PORT = 50462720; // 0x3020000
     field public static final int MISC_ERROR = 5; // 0x5
-    field public static final int PARSING_ERROR;
-    field public static final int RECEIVE_ERROR;
+    field public static final int PARSING_ERROR = 84082688; // 0x5030000
+    field public static final int RECEIVE_ERROR = 84017152; // 0x5020000
   }
 
   public class IpConnectivityLog {
     ctor public IpConnectivityLog();
-    method public boolean log(long, android.net.metrics.IpConnectivityLog.Event);
-    method public boolean log(String, android.net.metrics.IpConnectivityLog.Event);
-    method public boolean log(android.net.Network, int[], android.net.metrics.IpConnectivityLog.Event);
-    method public boolean log(int, int[], android.net.metrics.IpConnectivityLog.Event);
-    method public boolean log(android.net.metrics.IpConnectivityLog.Event);
+    method public boolean log(long, @NonNull android.net.metrics.IpConnectivityLog.Event);
+    method public boolean log(@NonNull String, @NonNull android.net.metrics.IpConnectivityLog.Event);
+    method public boolean log(@NonNull android.net.Network, @NonNull int[], @NonNull android.net.metrics.IpConnectivityLog.Event);
+    method public boolean log(int, @NonNull int[], @NonNull android.net.metrics.IpConnectivityLog.Event);
+    method public boolean log(@NonNull android.net.metrics.IpConnectivityLog.Event);
   }
 
   public static interface IpConnectivityLog.Event extends android.os.Parcelable {
@@ -3490,15 +3483,15 @@
   public final class RaEvent implements android.net.metrics.IpConnectivityLog.Event {
   }
 
-  public static class RaEvent.Builder {
+  public static final class RaEvent.Builder {
     ctor public RaEvent.Builder();
-    method public android.net.metrics.RaEvent build();
-    method public android.net.metrics.RaEvent.Builder updateDnsslLifetime(long);
-    method public android.net.metrics.RaEvent.Builder updatePrefixPreferredLifetime(long);
-    method public android.net.metrics.RaEvent.Builder updatePrefixValidLifetime(long);
-    method public android.net.metrics.RaEvent.Builder updateRdnssLifetime(long);
-    method public android.net.metrics.RaEvent.Builder updateRouteInfoLifetime(long);
-    method public android.net.metrics.RaEvent.Builder updateRouterLifetime(long);
+    method @NonNull public android.net.metrics.RaEvent build();
+    method @NonNull public android.net.metrics.RaEvent.Builder updateDnsslLifetime(long);
+    method @NonNull public android.net.metrics.RaEvent.Builder updatePrefixPreferredLifetime(long);
+    method @NonNull public android.net.metrics.RaEvent.Builder updatePrefixValidLifetime(long);
+    method @NonNull public android.net.metrics.RaEvent.Builder updateRdnssLifetime(long);
+    method @NonNull public android.net.metrics.RaEvent.Builder updateRouteInfoLifetime(long);
+    method @NonNull public android.net.metrics.RaEvent.Builder updateRouterLifetime(long);
   }
 
   public final class ValidationProbeEvent implements android.net.metrics.IpConnectivityLog.Event {
@@ -3513,12 +3506,12 @@
     field public static final int PROBE_PRIVDNS = 5; // 0x5
   }
 
-  public static class ValidationProbeEvent.Builder {
+  public static final class ValidationProbeEvent.Builder {
     ctor public ValidationProbeEvent.Builder();
-    method public android.net.metrics.ValidationProbeEvent build();
-    method public android.net.metrics.ValidationProbeEvent.Builder setDurationMs(long);
-    method public android.net.metrics.ValidationProbeEvent.Builder setProbeType(int, boolean);
-    method public android.net.metrics.ValidationProbeEvent.Builder setReturnCode(int);
+    method @NonNull public android.net.metrics.ValidationProbeEvent build();
+    method @NonNull public android.net.metrics.ValidationProbeEvent.Builder setDurationMs(long);
+    method @NonNull public android.net.metrics.ValidationProbeEvent.Builder setProbeType(int, boolean);
+    method @NonNull public android.net.metrics.ValidationProbeEvent.Builder setReturnCode(int);
   }
 
 }
@@ -4252,7 +4245,7 @@
   }
 
   public class ServiceSpecificException extends java.lang.RuntimeException {
-    ctor public ServiceSpecificException(int, String);
+    ctor public ServiceSpecificException(int, @Nullable String);
     ctor public ServiceSpecificException(int);
     field public final int errorCode;
   }
@@ -6031,50 +6024,48 @@
     field public static final String MBMS_STREAMING_SERVICE_ACTION = "android.telephony.action.EmbmsStreaming";
   }
 
-  public class NetworkRegistrationState implements android.os.Parcelable {
-    ctor public NetworkRegistrationState(int, int, int, int, int, boolean, @NonNull int[], @Nullable android.telephony.CellIdentity);
+  public final class NetworkRegistrationInfo implements android.os.Parcelable {
     method public int describeContents();
     method public int getAccessNetworkTechnology();
-    method @NonNull public int[] getAvailableServices();
+    method @NonNull public java.util.List<java.lang.Integer> getAvailableServices();
     method @Nullable public android.telephony.CellIdentity getCellIdentity();
     method @Nullable public android.telephony.DataSpecificRegistrationStates getDataSpecificStates();
     method public int getDomain();
-    method public int getRegState();
+    method public int getRegistrationState();
     method public int getRejectCause();
     method public int getRoamingType();
     method public int getTransportType();
     method public boolean isEmergencyEnabled();
     method public boolean isRoaming();
     method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.telephony.NetworkRegistrationState> CREATOR;
+    field @NonNull public static final android.os.Parcelable.Creator<android.telephony.NetworkRegistrationInfo> CREATOR;
     field public static final int DOMAIN_CS = 1; // 0x1
     field public static final int DOMAIN_PS = 2; // 0x2
-    field public static final int REG_STATE_DENIED = 3; // 0x3
-    field public static final int REG_STATE_HOME = 1; // 0x1
-    field public static final int REG_STATE_NOT_REG_NOT_SEARCHING = 0; // 0x0
-    field public static final int REG_STATE_NOT_REG_SEARCHING = 2; // 0x2
-    field public static final int REG_STATE_ROAMING = 5; // 0x5
-    field public static final int REG_STATE_UNKNOWN = 4; // 0x4
+    field public static final int REGISTRATION_STATE_DENIED = 3; // 0x3
+    field public static final int REGISTRATION_STATE_HOME = 1; // 0x1
+    field public static final int REGISTRATION_STATE_NOT_REGISTERED_OR_SEARCHING = 0; // 0x0
+    field public static final int REGISTRATION_STATE_NOT_REGISTERED_SEARCHING = 2; // 0x2
+    field public static final int REGISTRATION_STATE_ROAMING = 5; // 0x5
+    field public static final int REGISTRATION_STATE_UNKNOWN = 4; // 0x4
     field public static final int SERVICE_TYPE_DATA = 2; // 0x2
     field public static final int SERVICE_TYPE_EMERGENCY = 5; // 0x5
     field public static final int SERVICE_TYPE_SMS = 3; // 0x3
+    field public static final int SERVICE_TYPE_UNKNOWN = 0; // 0x0
     field public static final int SERVICE_TYPE_VIDEO = 4; // 0x4
     field public static final int SERVICE_TYPE_VOICE = 1; // 0x1
   }
 
-  public static class NetworkRegistrationState.Builder {
-    ctor public NetworkRegistrationState.Builder();
-    method @NonNull public android.telephony.NetworkRegistrationState build();
-    method @NonNull public android.telephony.NetworkRegistrationState.Builder setAccessNetworkTechnology(int);
-    method @NonNull public android.telephony.NetworkRegistrationState.Builder setAvailableServices(@NonNull int[]);
-    method @NonNull public android.telephony.NetworkRegistrationState.Builder setCellIdentity(@Nullable android.telephony.CellIdentity);
-    method @NonNull public android.telephony.NetworkRegistrationState.Builder setDomain(int);
-    method @NonNull public android.telephony.NetworkRegistrationState.Builder setEmergencyOnly(boolean);
-    method @NonNull public android.telephony.NetworkRegistrationState.Builder setNrStatus(int);
-    method @NonNull public android.telephony.NetworkRegistrationState.Builder setRegState(int);
-    method @NonNull public android.telephony.NetworkRegistrationState.Builder setRejectCause(int);
-    method @NonNull public android.telephony.NetworkRegistrationState.Builder setRoamingType(int);
-    method @NonNull public android.telephony.NetworkRegistrationState.Builder setTransportType(int);
+  public static final class NetworkRegistrationInfo.Builder {
+    ctor public NetworkRegistrationInfo.Builder();
+    method @NonNull public android.telephony.NetworkRegistrationInfo build();
+    method @NonNull public android.telephony.NetworkRegistrationInfo.Builder setAccessNetworkTechnology(int);
+    method @NonNull public android.telephony.NetworkRegistrationInfo.Builder setAvailableServices(@NonNull java.util.List<java.lang.Integer>);
+    method @NonNull public android.telephony.NetworkRegistrationInfo.Builder setCellIdentity(@Nullable android.telephony.CellIdentity);
+    method @NonNull public android.telephony.NetworkRegistrationInfo.Builder setDomain(int);
+    method @NonNull public android.telephony.NetworkRegistrationInfo.Builder setEmergencyOnly(boolean);
+    method @NonNull public android.telephony.NetworkRegistrationInfo.Builder setRegistrationState(int);
+    method @NonNull public android.telephony.NetworkRegistrationInfo.Builder setRejectCause(int);
+    method @NonNull public android.telephony.NetworkRegistrationInfo.Builder setTransportType(int);
   }
 
   public abstract class NetworkService extends android.app.Service {
@@ -6087,13 +6078,13 @@
   public abstract class NetworkService.NetworkServiceProvider implements java.lang.AutoCloseable {
     ctor public NetworkService.NetworkServiceProvider(int);
     method public abstract void close();
-    method public void getNetworkRegistrationState(int, @NonNull android.telephony.NetworkServiceCallback);
+    method public void getNetworkRegistrationInfo(int, @NonNull android.telephony.NetworkServiceCallback);
     method public final int getSlotIndex();
-    method public final void notifyNetworkRegistrationStateChanged();
+    method public final void notifyNetworkRegistrationInfoChanged();
   }
 
   public class NetworkServiceCallback {
-    method public void onGetNetworkRegistrationStateComplete(int, @Nullable android.telephony.NetworkRegistrationState);
+    method public void onGetNetworkRegistrationInfoComplete(int, @Nullable android.telephony.NetworkRegistrationInfo);
     field public static final int RESULT_ERROR_BUSY = 3; // 0x3
     field public static final int RESULT_ERROR_FAILED = 5; // 0x5
     field public static final int RESULT_ERROR_ILLEGAL_STATE = 4; // 0x4
@@ -6268,12 +6259,10 @@
   }
 
   public class ServiceState implements android.os.Parcelable {
-    method @Nullable public android.telephony.NetworkRegistrationState getNetworkRegistrationState(int, int);
-    method @NonNull public java.util.List<android.telephony.NetworkRegistrationState> getNetworkRegistrationStates();
-    method @Deprecated @NonNull public java.util.List<android.telephony.NetworkRegistrationState> getNetworkRegistrationStates(int);
-    method @Deprecated @Nullable public android.telephony.NetworkRegistrationState getNetworkRegistrationStates(int, int);
-    method @NonNull public java.util.List<android.telephony.NetworkRegistrationState> getNetworkRegistrationStatesForDomain(int);
-    method @NonNull public java.util.List<android.telephony.NetworkRegistrationState> getNetworkRegistrationStatesForTransportType(int);
+    method @Nullable public android.telephony.NetworkRegistrationInfo getNetworkRegistrationInfo(int, int);
+    method @NonNull public java.util.List<android.telephony.NetworkRegistrationInfo> getNetworkRegistrationInfoList();
+    method @NonNull public java.util.List<android.telephony.NetworkRegistrationInfo> getNetworkRegistrationInfoListForDomain(int);
+    method @NonNull public java.util.List<android.telephony.NetworkRegistrationInfo> getNetworkRegistrationInfoListForTransportType(int);
     field public static final int ROAMING_TYPE_DOMESTIC = 2; // 0x2
     field public static final int ROAMING_TYPE_INTERNATIONAL = 3; // 0x3
     field public static final int ROAMING_TYPE_NOT_ROAMING = 0; // 0x0
@@ -6385,7 +6374,7 @@
     method @Nullable @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public String getIsimIst();
     method @NonNull @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public java.util.Map<java.lang.Integer,java.lang.Integer> getLogicalToPhysicalSlotMapping();
     method public static long getMaxNumberVerificationTimeoutMillis();
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public long getPreferredNetworkTypeBitmap();
+    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public long getPreferredNetworkTypeBitmask();
     method @RequiresPermission(anyOf={android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE, android.Manifest.permission.READ_PHONE_STATE}) public int getRadioPowerState();
     method public int getSimApplicationState();
     method public int getSimCardState();
@@ -6397,7 +6386,7 @@
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public int getVoiceActivationState();
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public boolean handlePinMmi(String);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public boolean handlePinMmiForSubscriber(int, String);
-    method @Nullable @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public boolean iccCloseLogicalChannelBySlot(int, int);
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public boolean iccCloseLogicalChannelBySlot(int, int);
     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);
@@ -6421,8 +6410,8 @@
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setDataActivationState(int);
     method @Deprecated @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setDataEnabled(int, boolean);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setDataRoamingEnabled(boolean);
-    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setMultisimCarrierRestriction(boolean);
-    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public boolean setPreferredNetworkTypeBitmap(long);
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setMultiSimCarrierRestriction(boolean);
+    method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public boolean setPreferredNetworkTypeBitmask(long);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public boolean setRadio(boolean);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public boolean setRadioPower(boolean);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setSimPowerState(int);
@@ -6919,7 +6908,7 @@
     field public final java.util.HashMap<java.lang.String,android.os.Bundle> mParticipants;
   }
 
-  public class ImsException extends java.lang.Exception {
+  public final class ImsException extends java.lang.Exception {
     ctor public ImsException(@Nullable String);
     ctor public ImsException(@Nullable String, int);
     ctor public ImsException(@Nullable String, int, @Nullable Throwable);
diff --git a/api/test-current.txt b/api/test-current.txt
index bf5ccd0..3c0a75e 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -602,8 +602,8 @@
 package android.net {
 
   public class CaptivePortal implements android.os.Parcelable {
-    ctor public CaptivePortal(android.os.IBinder);
-    method public void logEvent(int, String);
+    ctor public CaptivePortal(@NonNull android.os.IBinder);
+    method public void logEvent(int, @NonNull String);
     method public void useNetwork();
     field public static final int APP_RETURN_DISMISSED = 0; // 0x0
     field public static final int APP_RETURN_UNWANTED = 1; // 0x1
@@ -611,14 +611,14 @@
   }
 
   public class ConnectivityManager {
-    method @RequiresPermission(android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK) public void startCaptivePortalApp(android.net.Network, android.os.Bundle);
+    method @RequiresPermission(android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK) public void startCaptivePortalApp(@NonNull android.net.Network, @NonNull android.os.Bundle);
     field public static final String EXTRA_CAPTIVE_PORTAL_PROBE_SPEC = "android.net.extra.CAPTIVE_PORTAL_PROBE_SPEC";
     field public static final String EXTRA_CAPTIVE_PORTAL_USER_AGENT = "android.net.extra.CAPTIVE_PORTAL_USER_AGENT";
   }
 
   public final class IpPrefix implements android.os.Parcelable {
-    ctor public IpPrefix(java.net.InetAddress, int);
-    ctor public IpPrefix(String);
+    ctor public IpPrefix(@NonNull java.net.InetAddress, int);
+    ctor public IpPrefix(@NonNull String);
   }
 
   public final class IpSecManager {
@@ -629,48 +629,48 @@
     ctor public LinkAddress(java.net.InetAddress, int, int, int);
     ctor public LinkAddress(@NonNull java.net.InetAddress, int);
     ctor public LinkAddress(@NonNull String);
-    ctor public LinkAddress(String, int, int);
+    ctor public LinkAddress(@NonNull String, int, int);
     method public boolean isGlobalPreferred();
-    method public boolean isIPv4();
-    method public boolean isIPv6();
-    method public boolean isSameAddressAs(android.net.LinkAddress);
+    method public boolean isIpv4();
+    method public boolean isIpv6();
+    method public boolean isSameAddressAs(@Nullable android.net.LinkAddress);
   }
 
   public final class LinkProperties implements android.os.Parcelable {
-    ctor public LinkProperties(android.net.LinkProperties);
-    method public boolean addDnsServer(java.net.InetAddress);
-    method public boolean addLinkAddress(android.net.LinkAddress);
+    ctor public LinkProperties(@Nullable android.net.LinkProperties);
+    method public boolean addDnsServer(@NonNull java.net.InetAddress);
+    method public boolean addLinkAddress(@NonNull android.net.LinkAddress);
     method @Nullable public android.net.IpPrefix getNat64Prefix();
-    method public java.util.List<java.net.InetAddress> getPcscfServers();
-    method public String getTcpBufferSizes();
-    method public java.util.List<java.net.InetAddress> getValidatedPrivateDnsServers();
-    method public boolean hasGlobalIPv6Address();
-    method public boolean hasIPv4Address();
-    method public boolean hasIPv6DefaultRoute();
-    method public boolean isIPv4Provisioned();
-    method public boolean isIPv6Provisioned();
+    method @NonNull public java.util.List<java.net.InetAddress> getPcscfServers();
+    method @Nullable public String getTcpBufferSizes();
+    method @NonNull public java.util.List<java.net.InetAddress> getValidatedPrivateDnsServers();
+    method public boolean hasGlobalIpv6Address();
+    method public boolean hasIpv4Address();
+    method public boolean hasIpv6DefaultRoute();
+    method public boolean isIpv4Provisioned();
+    method public boolean isIpv6Provisioned();
     method public boolean isProvisioned();
-    method public boolean isReachable(java.net.InetAddress);
-    method public boolean removeDnsServer(java.net.InetAddress);
-    method public boolean removeLinkAddress(android.net.LinkAddress);
-    method public boolean removeRoute(android.net.RouteInfo);
-    method public void setNat64Prefix(android.net.IpPrefix);
-    method public void setPcscfServers(java.util.Collection<java.net.InetAddress>);
+    method public boolean isReachable(@NonNull java.net.InetAddress);
+    method public boolean removeDnsServer(@NonNull java.net.InetAddress);
+    method public boolean removeLinkAddress(@NonNull android.net.LinkAddress);
+    method public boolean removeRoute(@NonNull android.net.RouteInfo);
+    method public void setNat64Prefix(@Nullable android.net.IpPrefix);
+    method public void setPcscfServers(@NonNull java.util.Collection<java.net.InetAddress>);
     method public void setPrivateDnsServerName(@Nullable String);
-    method public void setTcpBufferSizes(String);
+    method public void setTcpBufferSizes(@Nullable String);
     method public void setUsePrivateDns(boolean);
-    method public void setValidatedPrivateDnsServers(java.util.Collection<java.net.InetAddress>);
+    method public void setValidatedPrivateDnsServers(@NonNull java.util.Collection<java.net.InetAddress>);
   }
 
   public class Network implements android.os.Parcelable {
-    ctor public Network(android.net.Network);
-    method public android.net.Network getPrivateDnsBypassingCopy();
+    ctor public Network(@NonNull android.net.Network);
+    method @NonNull public android.net.Network getPrivateDnsBypassingCopy();
   }
 
   public final class NetworkCapabilities implements android.os.Parcelable {
     method public int[] getCapabilities();
-    method public int[] getTransportTypes();
-    method public boolean satisfiedByNetworkCapabilities(android.net.NetworkCapabilities);
+    method @NonNull public int[] getTransportTypes();
+    method public boolean satisfiedByNetworkCapabilities(@Nullable android.net.NetworkCapabilities);
     field public static final int TRANSPORT_TEST = 7; // 0x7
   }
 
@@ -679,7 +679,7 @@
   }
 
   public final class RouteInfo implements android.os.Parcelable {
-    ctor public RouteInfo(android.net.IpPrefix, java.net.InetAddress, String, int);
+    ctor public RouteInfo(@Nullable android.net.IpPrefix, @Nullable java.net.InetAddress, @Nullable String, int);
     method public int getType();
     field public static final int RTN_THROW = 9; // 0x9
     field public static final int RTN_UNICAST = 1; // 0x1
@@ -688,18 +688,18 @@
 
   public final class StaticIpConfiguration implements android.os.Parcelable {
     ctor public StaticIpConfiguration();
-    ctor public StaticIpConfiguration(android.net.StaticIpConfiguration);
-    method public void addDnsServer(java.net.InetAddress);
+    ctor public StaticIpConfiguration(@Nullable android.net.StaticIpConfiguration);
+    method public void addDnsServer(@NonNull java.net.InetAddress);
     method public void clear();
     method public int describeContents();
-    method public java.util.List<java.net.InetAddress> getDnsServers();
-    method public String getDomains();
-    method public java.net.InetAddress getGateway();
-    method public android.net.LinkAddress getIpAddress();
-    method public java.util.List<android.net.RouteInfo> getRoutes(String);
-    method public void setDomains(String);
-    method public void setGateway(java.net.InetAddress);
-    method public void setIpAddress(android.net.LinkAddress);
+    method @NonNull public java.util.List<java.net.InetAddress> getDnsServers();
+    method @Nullable public String getDomains();
+    method @Nullable public java.net.InetAddress getGateway();
+    method @Nullable public android.net.LinkAddress getIpAddress();
+    method @NonNull public java.util.List<android.net.RouteInfo> getRoutes(String);
+    method public void setDomains(@Nullable String);
+    method public void setGateway(@Nullable java.net.InetAddress);
+    method public void setIpAddress(@Nullable android.net.LinkAddress);
     method public void writeToParcel(android.os.Parcel, int);
     field public static final android.os.Parcelable.Creator<android.net.StaticIpConfiguration> CREATOR;
   }
@@ -733,11 +733,14 @@
 
 package android.net.apf {
 
-  public class ApfCapabilities {
+  public final class ApfCapabilities implements android.os.Parcelable {
     ctor public ApfCapabilities(int, int, int);
-    method public static boolean getApfDrop8023Frames(android.content.Context);
-    method public static int[] getApfEthTypeBlackList(android.content.Context);
+    method public int describeContents();
+    method public static boolean getApfDrop8023Frames(@NonNull android.content.Context);
+    method @NonNull public static int[] getApfEthTypeBlackList(@NonNull android.content.Context);
     method public boolean hasDataAccess();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.net.apf.ApfCapabilities> CREATOR;
     field public final int apfPacketFormat;
     field public final int apfVersionSupported;
     field public final int maximumApfProgramSize;
@@ -749,28 +752,28 @@
 
   public final class CaptivePortalProbeResult {
     ctor public CaptivePortalProbeResult(int);
-    ctor public CaptivePortalProbeResult(int, String, String);
-    ctor public CaptivePortalProbeResult(int, String, String, android.net.captiveportal.CaptivePortalProbeSpec);
+    ctor public CaptivePortalProbeResult(int, @Nullable String, @Nullable String);
+    ctor public CaptivePortalProbeResult(int, @Nullable String, @Nullable String, @Nullable android.net.captiveportal.CaptivePortalProbeSpec);
     method public boolean isFailed();
     method public boolean isPartialConnectivity();
     method public boolean isPortal();
     method public boolean isSuccessful();
-    field public static final android.net.captiveportal.CaptivePortalProbeResult FAILED;
+    field @NonNull public static final android.net.captiveportal.CaptivePortalProbeResult FAILED;
     field public static final int FAILED_CODE = 599; // 0x257
     field public static final android.net.captiveportal.CaptivePortalProbeResult PARTIAL;
     field public static final int PORTAL_CODE = 302; // 0x12e
-    field public static final android.net.captiveportal.CaptivePortalProbeResult SUCCESS;
+    field @NonNull public static final android.net.captiveportal.CaptivePortalProbeResult SUCCESS;
     field public static final int SUCCESS_CODE = 204; // 0xcc
-    field public final String detectUrl;
+    field @Nullable public final String detectUrl;
     field @Nullable public final android.net.captiveportal.CaptivePortalProbeSpec probeSpec;
-    field public final String redirectUrl;
+    field @Nullable public final String redirectUrl;
   }
 
   public abstract class CaptivePortalProbeSpec {
-    method public String getEncodedSpec();
-    method public abstract android.net.captiveportal.CaptivePortalProbeResult getResult(int, @Nullable String);
-    method public java.net.URL getUrl();
-    method public static java.util.Collection<android.net.captiveportal.CaptivePortalProbeSpec> parseCaptivePortalProbeSpecs(String);
+    method @NonNull public String getEncodedSpec();
+    method @NonNull public abstract android.net.captiveportal.CaptivePortalProbeResult getResult(int, @Nullable String);
+    method @NonNull public java.net.URL getUrl();
+    method @NonNull public static java.util.Collection<android.net.captiveportal.CaptivePortalProbeSpec> parseCaptivePortalProbeSpecs(@NonNull String);
     method @Nullable public static android.net.captiveportal.CaptivePortalProbeSpec parseSpecOrNull(@Nullable String);
   }
 
@@ -781,78 +784,78 @@
   public final class ApfProgramEvent implements android.net.metrics.IpConnectivityLog.Event {
   }
 
-  public static class ApfProgramEvent.Builder {
+  public static final class ApfProgramEvent.Builder {
     ctor public ApfProgramEvent.Builder();
-    method public android.net.metrics.ApfProgramEvent build();
-    method public android.net.metrics.ApfProgramEvent.Builder setActualLifetime(long);
-    method public android.net.metrics.ApfProgramEvent.Builder setCurrentRas(int);
-    method public android.net.metrics.ApfProgramEvent.Builder setFilteredRas(int);
-    method public android.net.metrics.ApfProgramEvent.Builder setFlags(boolean, boolean);
-    method public android.net.metrics.ApfProgramEvent.Builder setLifetime(long);
-    method public android.net.metrics.ApfProgramEvent.Builder setProgramLength(int);
+    method @NonNull public android.net.metrics.ApfProgramEvent build();
+    method @NonNull public android.net.metrics.ApfProgramEvent.Builder setActualLifetime(long);
+    method @NonNull public android.net.metrics.ApfProgramEvent.Builder setCurrentRas(int);
+    method @NonNull public android.net.metrics.ApfProgramEvent.Builder setFilteredRas(int);
+    method @NonNull public android.net.metrics.ApfProgramEvent.Builder setFlags(boolean, boolean);
+    method @NonNull public android.net.metrics.ApfProgramEvent.Builder setLifetime(long);
+    method @NonNull public android.net.metrics.ApfProgramEvent.Builder setProgramLength(int);
   }
 
   public final class ApfStats implements android.net.metrics.IpConnectivityLog.Event {
   }
 
-  public static class ApfStats.Builder {
+  public static final class ApfStats.Builder {
     ctor public ApfStats.Builder();
-    method public android.net.metrics.ApfStats build();
-    method public android.net.metrics.ApfStats.Builder setDroppedRas(int);
-    method public android.net.metrics.ApfStats.Builder setDurationMs(long);
-    method public android.net.metrics.ApfStats.Builder setMatchingRas(int);
-    method public android.net.metrics.ApfStats.Builder setMaxProgramSize(int);
-    method public android.net.metrics.ApfStats.Builder setParseErrors(int);
-    method public android.net.metrics.ApfStats.Builder setProgramUpdates(int);
-    method public android.net.metrics.ApfStats.Builder setProgramUpdatesAll(int);
-    method public android.net.metrics.ApfStats.Builder setProgramUpdatesAllowingMulticast(int);
-    method public android.net.metrics.ApfStats.Builder setReceivedRas(int);
-    method public android.net.metrics.ApfStats.Builder setZeroLifetimeRas(int);
+    method @NonNull public android.net.metrics.ApfStats build();
+    method @NonNull public android.net.metrics.ApfStats.Builder setDroppedRas(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setDurationMs(long);
+    method @NonNull public android.net.metrics.ApfStats.Builder setMatchingRas(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setMaxProgramSize(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setParseErrors(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setProgramUpdates(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setProgramUpdatesAll(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setProgramUpdatesAllowingMulticast(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setReceivedRas(int);
+    method @NonNull public android.net.metrics.ApfStats.Builder setZeroLifetimeRas(int);
   }
 
   public final class DhcpClientEvent implements android.net.metrics.IpConnectivityLog.Event {
   }
 
-  public static class DhcpClientEvent.Builder {
+  public static final class DhcpClientEvent.Builder {
     ctor public DhcpClientEvent.Builder();
-    method public android.net.metrics.DhcpClientEvent build();
-    method public android.net.metrics.DhcpClientEvent.Builder setDurationMs(int);
-    method public android.net.metrics.DhcpClientEvent.Builder setMsg(String);
+    method @NonNull public android.net.metrics.DhcpClientEvent build();
+    method @NonNull public android.net.metrics.DhcpClientEvent.Builder setDurationMs(int);
+    method @NonNull public android.net.metrics.DhcpClientEvent.Builder setMsg(String);
   }
 
   public final class DhcpErrorEvent implements android.net.metrics.IpConnectivityLog.Event {
     ctor public DhcpErrorEvent(int);
     method public static int errorCodeWithOption(int, int);
-    field public static final int BOOTP_TOO_SHORT;
-    field public static final int BUFFER_UNDERFLOW;
-    field public static final int DHCP_BAD_MAGIC_COOKIE;
+    field public static final int BOOTP_TOO_SHORT = 67174400; // 0x4010000
+    field public static final int BUFFER_UNDERFLOW = 83951616; // 0x5010000
+    field public static final int DHCP_BAD_MAGIC_COOKIE = 67239936; // 0x4020000
     field public static final int DHCP_ERROR = 4; // 0x4
-    field public static final int DHCP_INVALID_OPTION_LENGTH;
-    field public static final int DHCP_NO_COOKIE;
-    field public static final int DHCP_NO_MSG_TYPE;
-    field public static final int DHCP_UNKNOWN_MSG_TYPE;
+    field public static final int DHCP_INVALID_OPTION_LENGTH = 67305472; // 0x4030000
+    field public static final int DHCP_NO_COOKIE = 67502080; // 0x4060000
+    field public static final int DHCP_NO_MSG_TYPE = 67371008; // 0x4040000
+    field public static final int DHCP_UNKNOWN_MSG_TYPE = 67436544; // 0x4050000
     field public static final int L2_ERROR = 1; // 0x1
-    field public static final int L2_TOO_SHORT;
-    field public static final int L2_WRONG_ETH_TYPE;
+    field public static final int L2_TOO_SHORT = 16842752; // 0x1010000
+    field public static final int L2_WRONG_ETH_TYPE = 16908288; // 0x1020000
     field public static final int L3_ERROR = 2; // 0x2
-    field public static final int L3_INVALID_IP;
-    field public static final int L3_NOT_IPV4;
-    field public static final int L3_TOO_SHORT;
+    field public static final int L3_INVALID_IP = 33751040; // 0x2030000
+    field public static final int L3_NOT_IPV4 = 33685504; // 0x2020000
+    field public static final int L3_TOO_SHORT = 33619968; // 0x2010000
     field public static final int L4_ERROR = 3; // 0x3
-    field public static final int L4_NOT_UDP;
-    field public static final int L4_WRONG_PORT;
+    field public static final int L4_NOT_UDP = 50397184; // 0x3010000
+    field public static final int L4_WRONG_PORT = 50462720; // 0x3020000
     field public static final int MISC_ERROR = 5; // 0x5
-    field public static final int PARSING_ERROR;
-    field public static final int RECEIVE_ERROR;
+    field public static final int PARSING_ERROR = 84082688; // 0x5030000
+    field public static final int RECEIVE_ERROR = 84017152; // 0x5020000
   }
 
   public class IpConnectivityLog {
     ctor public IpConnectivityLog();
-    method public boolean log(long, android.net.metrics.IpConnectivityLog.Event);
-    method public boolean log(String, android.net.metrics.IpConnectivityLog.Event);
-    method public boolean log(android.net.Network, int[], android.net.metrics.IpConnectivityLog.Event);
-    method public boolean log(int, int[], android.net.metrics.IpConnectivityLog.Event);
-    method public boolean log(android.net.metrics.IpConnectivityLog.Event);
+    method public boolean log(long, @NonNull android.net.metrics.IpConnectivityLog.Event);
+    method public boolean log(@NonNull String, @NonNull android.net.metrics.IpConnectivityLog.Event);
+    method public boolean log(@NonNull android.net.Network, @NonNull int[], @NonNull android.net.metrics.IpConnectivityLog.Event);
+    method public boolean log(int, @NonNull int[], @NonNull android.net.metrics.IpConnectivityLog.Event);
+    method public boolean log(@NonNull android.net.metrics.IpConnectivityLog.Event);
   }
 
   public static interface IpConnectivityLog.Event extends android.os.Parcelable {
@@ -900,15 +903,15 @@
   public final class RaEvent implements android.net.metrics.IpConnectivityLog.Event {
   }
 
-  public static class RaEvent.Builder {
+  public static final class RaEvent.Builder {
     ctor public RaEvent.Builder();
-    method public android.net.metrics.RaEvent build();
-    method public android.net.metrics.RaEvent.Builder updateDnsslLifetime(long);
-    method public android.net.metrics.RaEvent.Builder updatePrefixPreferredLifetime(long);
-    method public android.net.metrics.RaEvent.Builder updatePrefixValidLifetime(long);
-    method public android.net.metrics.RaEvent.Builder updateRdnssLifetime(long);
-    method public android.net.metrics.RaEvent.Builder updateRouteInfoLifetime(long);
-    method public android.net.metrics.RaEvent.Builder updateRouterLifetime(long);
+    method @NonNull public android.net.metrics.RaEvent build();
+    method @NonNull public android.net.metrics.RaEvent.Builder updateDnsslLifetime(long);
+    method @NonNull public android.net.metrics.RaEvent.Builder updatePrefixPreferredLifetime(long);
+    method @NonNull public android.net.metrics.RaEvent.Builder updatePrefixValidLifetime(long);
+    method @NonNull public android.net.metrics.RaEvent.Builder updateRdnssLifetime(long);
+    method @NonNull public android.net.metrics.RaEvent.Builder updateRouteInfoLifetime(long);
+    method @NonNull public android.net.metrics.RaEvent.Builder updateRouterLifetime(long);
   }
 
   public final class ValidationProbeEvent implements android.net.metrics.IpConnectivityLog.Event {
@@ -923,12 +926,12 @@
     field public static final int PROBE_PRIVDNS = 5; // 0x5
   }
 
-  public static class ValidationProbeEvent.Builder {
+  public static final class ValidationProbeEvent.Builder {
     ctor public ValidationProbeEvent.Builder();
-    method public android.net.metrics.ValidationProbeEvent build();
-    method public android.net.metrics.ValidationProbeEvent.Builder setDurationMs(long);
-    method public android.net.metrics.ValidationProbeEvent.Builder setProbeType(int, boolean);
-    method public android.net.metrics.ValidationProbeEvent.Builder setReturnCode(int);
+    method @NonNull public android.net.metrics.ValidationProbeEvent build();
+    method @NonNull public android.net.metrics.ValidationProbeEvent.Builder setDurationMs(long);
+    method @NonNull public android.net.metrics.ValidationProbeEvent.Builder setProbeType(int, boolean);
+    method @NonNull public android.net.metrics.ValidationProbeEvent.Builder setReturnCode(int);
   }
 
 }
diff --git a/cmds/statsd/src/atoms.proto b/cmds/statsd/src/atoms.proto
index 47eccdb..2a9f248 100644
--- a/cmds/statsd/src/atoms.proto
+++ b/cmds/statsd/src/atoms.proto
@@ -1714,6 +1714,9 @@
     // HCI reason code associated with this event
     // Default: STATUS_UNKNOWN
     optional android.bluetooth.hci.StatusEnum reason_code = 6;
+    // A status value related to this specific event
+    // Default: 0
+    optional int64 event_value = 7;
 }
 
 /**
diff --git a/core/java/android/content/pm/PackageList.java b/core/java/android/content/pm/PackageList.java
index cfd99ab..f781758 100644
--- a/core/java/android/content/pm/PackageList.java
+++ b/core/java/android/content/pm/PackageList.java
@@ -45,16 +45,16 @@
     }
 
     @Override
-    public void onPackageAdded(String packageName) {
+    public void onPackageAdded(String packageName, int uid) {
         if (mWrappedObserver != null) {
-            mWrappedObserver.onPackageAdded(packageName);
+            mWrappedObserver.onPackageAdded(packageName, uid);
         }
     }
 
     @Override
-    public void onPackageRemoved(String packageName) {
+    public void onPackageRemoved(String packageName, int uid) {
         if (mWrappedObserver != null) {
-            mWrappedObserver.onPackageRemoved(packageName);
+            mWrappedObserver.onPackageRemoved(packageName, uid);
         }
     }
 
diff --git a/core/java/android/content/pm/PackageManagerInternal.java b/core/java/android/content/pm/PackageManagerInternal.java
index 7c9943b..c299369 100644
--- a/core/java/android/content/pm/PackageManagerInternal.java
+++ b/core/java/android/content/pm/PackageManagerInternal.java
@@ -62,9 +62,9 @@
     /** Observer called whenever the list of packages changes */
     public interface PackageListObserver {
         /** A package was added to the system. */
-        void onPackageAdded(@NonNull String packageName);
+        void onPackageAdded(@NonNull String packageName, int uid);
         /** A package was removed from the system. */
-        void onPackageRemoved(@NonNull String packageName);
+        void onPackageRemoved(@NonNull String packageName, int uid);
     }
 
     /** Interface to override permission checks via composition */
diff --git a/core/java/android/content/pm/SharedLibraryInfo.java b/core/java/android/content/pm/SharedLibraryInfo.java
index ad82626d..8354296 100644
--- a/core/java/android/content/pm/SharedLibraryInfo.java
+++ b/core/java/android/content/pm/SharedLibraryInfo.java
@@ -289,9 +289,9 @@
 
     @Override
     public String toString() {
-        return "SharedLibraryInfo[name:" + mName + ", type:" + typeToString(mType)
+        return "SharedLibraryInfo{name:" + mName + ", type:" + typeToString(mType)
                 + ", version:" + mVersion + (!getDependentPackages().isEmpty()
-                ? " has dependents" : "");
+                ? " has dependents" : "") + "}";
     }
 
     @Override
diff --git a/core/java/android/net/CaptivePortal.java b/core/java/android/net/CaptivePortal.java
index 3ab35e1..ebd8a7e 100644
--- a/core/java/android/net/CaptivePortal.java
+++ b/core/java/android/net/CaptivePortal.java
@@ -15,6 +15,7 @@
  */
 package android.net;
 
+import android.annotation.NonNull;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.os.IBinder;
@@ -29,15 +30,33 @@
  * {@code ACTION_CAPTIVE_PORTAL_SIGN_IN} activity.
  */
 public class CaptivePortal implements Parcelable {
-    /** @hide */
+    /**
+     * Response code from the captive portal application, indicating that the portal was dismissed
+     * and the network should be re-validated.
+     * @see ICaptivePortal#appResponse(int)
+     * @see android.net.INetworkMonitor#notifyCaptivePortalAppFinished(int)
+     * @hide
+     */
     @SystemApi
     @TestApi
     public static final int APP_RETURN_DISMISSED    = 0;
-    /** @hide */
+    /**
+     * Response code from the captive portal application, indicating that the user did not login and
+     * does not want to use the captive portal network.
+     * @see ICaptivePortal#appResponse(int)
+     * @see android.net.INetworkMonitor#notifyCaptivePortalAppFinished(int)
+     * @hide
+     */
     @SystemApi
     @TestApi
     public static final int APP_RETURN_UNWANTED     = 1;
-    /** @hide */
+    /**
+     * Response code from the captive portal application, indicating that the user does not wish to
+     * login but wants to use the captive portal network as-is.
+     * @see ICaptivePortal#appResponse(int)
+     * @see android.net.INetworkMonitor#notifyCaptivePortalAppFinished(int)
+     * @hide
+     */
     @SystemApi
     @TestApi
     public static final int APP_RETURN_WANTED_AS_IS = 2;
@@ -47,7 +66,7 @@
     /** @hide */
     @SystemApi
     @TestApi
-    public CaptivePortal(IBinder binder) {
+    public CaptivePortal(@NonNull IBinder binder) {
         mBinder = binder;
     }
 
@@ -124,7 +143,7 @@
      */
     @SystemApi
     @TestApi
-    public void logEvent(int eventId, String packageName) {
+    public void logEvent(int eventId, @NonNull String packageName) {
         try {
             ICaptivePortal.Stub.asInterface(mBinder).logEvent(eventId, packageName);
         } catch (RemoteException e) {
diff --git a/core/java/android/net/ConnectivityManager.java b/core/java/android/net/ConnectivityManager.java
index e5802c2..1632235 100644
--- a/core/java/android/net/ConnectivityManager.java
+++ b/core/java/android/net/ConnectivityManager.java
@@ -4088,7 +4088,7 @@
     @SystemApi
     @TestApi
     @RequiresPermission(NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK)
-    public void startCaptivePortalApp(Network network, Bundle appExtras) {
+    public void startCaptivePortalApp(@NonNull Network network, @NonNull Bundle appExtras) {
         try {
             mService.startCaptivePortalAppInternal(network, appExtras);
         } catch (RemoteException e) {
diff --git a/core/java/android/net/INetworkMonitor.aidl b/core/java/android/net/INetworkMonitor.aidl
index 5d1ab98..1b0e1d7 100644
--- a/core/java/android/net/INetworkMonitor.aidl
+++ b/core/java/android/net/INetworkMonitor.aidl
@@ -41,7 +41,7 @@
     void start();
     void launchCaptivePortalApp();
     void notifyCaptivePortalAppFinished(int response);
-    void notifyAcceptPartialConnectivity();
+    void setAcceptPartialConnectivity();
     void forceReevaluation(int uid);
     void notifyPrivateDnsChanged(in PrivateDnsConfigParcel config);
     void notifyDnsResponse(int returnCode);
diff --git a/core/java/android/net/InterfaceConfiguration.java b/core/java/android/net/InterfaceConfiguration.java
index b9d49c1..61bc19f 100644
--- a/core/java/android/net/InterfaceConfiguration.java
+++ b/core/java/android/net/InterfaceConfiguration.java
@@ -19,11 +19,9 @@
 import android.annotation.UnsupportedAppUsage;
 import android.os.Parcel;
 import android.os.Parcelable;
-import android.text.TextUtils;
 
 import com.google.android.collect.Sets;
 
-import java.net.InetAddress;
 import java.util.HashSet;
 
 /**
@@ -117,40 +115,6 @@
     }
 
     /**
-     * Construct InterfaceConfiguration from InterfaceConfigurationParcel.
-     */
-    public static InterfaceConfiguration fromParcel(InterfaceConfigurationParcel p) {
-        InterfaceConfiguration cfg = new InterfaceConfiguration();
-        cfg.setHardwareAddress(p.hwAddr);
-
-        final InetAddress addr = NetworkUtils.numericToInetAddress(p.ipv4Addr);
-        cfg.setLinkAddress(new LinkAddress(addr, p.prefixLength));
-        for (String flag : p.flags) {
-            cfg.setFlag(flag);
-        }
-
-        return cfg;
-    }
-
-    /**
-     * Convert InterfaceConfiguration to InterfaceConfigurationParcel with given ifname.
-     */
-    public InterfaceConfigurationParcel toParcel(String iface) {
-        InterfaceConfigurationParcel cfgParcel = new InterfaceConfigurationParcel();
-        cfgParcel.ifName = iface;
-        if (!TextUtils.isEmpty(mHwAddr)) {
-            cfgParcel.hwAddr = mHwAddr;
-        } else {
-            cfgParcel.hwAddr = "";
-        }
-        cfgParcel.ipv4Addr = mAddr.getAddress().getHostAddress();
-        cfgParcel.prefixLength = mAddr.getPrefixLength();
-        cfgParcel.flags = mFlags.toArray(EMPTY_STRING_ARRAY);
-
-        return cfgParcel;
-    }
-
-    /**
      * This function determines if the interface is up and has a valid IP
      * configuration (IP address has a non zero octet).
      *
diff --git a/core/java/android/net/IpPrefix.java b/core/java/android/net/IpPrefix.java
index 175263f..b4f3a28 100644
--- a/core/java/android/net/IpPrefix.java
+++ b/core/java/android/net/IpPrefix.java
@@ -16,6 +16,7 @@
 
 package android.net;
 
+import android.annotation.NonNull;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.os.Parcel;
@@ -70,7 +71,7 @@
      *
      * @hide
      */
-    public IpPrefix(byte[] address, int prefixLength) {
+    public IpPrefix(@NonNull byte[] address, int prefixLength) {
         this.address = address.clone();
         this.prefixLength = prefixLength;
         checkAndMaskAddressAndPrefixLength();
@@ -87,7 +88,7 @@
      */
     @SystemApi
     @TestApi
-    public IpPrefix(InetAddress address, int prefixLength) {
+    public IpPrefix(@NonNull InetAddress address, int prefixLength) {
         // We don't reuse the (byte[], int) constructor because it calls clone() on the byte array,
         // which is unnecessary because getAddress() already returns a clone.
         this.address = address.getAddress();
@@ -106,7 +107,7 @@
      */
     @SystemApi
     @TestApi
-    public IpPrefix(String prefix) {
+    public IpPrefix(@NonNull String prefix) {
         // We don't reuse the (InetAddress, int) constructor because "error: call to this must be
         // first statement in constructor". We could factor out setting the member variables to an
         // init() method, but if we did, then we'd have to make the members non-final, or "error:
diff --git a/core/java/android/net/LinkAddress.java b/core/java/android/net/LinkAddress.java
index 8b01960..78b4665 100644
--- a/core/java/android/net/LinkAddress.java
+++ b/core/java/android/net/LinkAddress.java
@@ -26,6 +26,7 @@
 import static android.system.OsConstants.RT_SCOPE_UNIVERSE;
 
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.annotation.UnsupportedAppUsage;
@@ -107,8 +108,8 @@
      *
      * Per RFC 4193 section 8, fc00::/7 identifies these addresses.
      */
-    private boolean isIPv6ULA() {
-        if (isIPv6()) {
+    private boolean isIpv6ULA() {
+        if (isIpv6()) {
             byte[] bytes = address.getAddress();
             return ((bytes[0] & (byte)0xfe) == (byte)0xfc);
         }
@@ -121,17 +122,29 @@
      */
     @TestApi
     @SystemApi
-    public boolean isIPv6() {
+    public boolean isIpv6() {
         return address instanceof Inet6Address;
     }
 
     /**
+     * For backward compatibility.
+     * This was annotated with @UnsupportedAppUsage in P, so we can't remove the method completely
+     * just yet.
+     * @return true if the address is IPv6.
+     * @hide
+     */
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
+    public boolean isIPv6() {
+        return isIpv6();
+    }
+
+    /**
      * @return true if the address is IPv4 or is a mapped IPv4 address.
      * @hide
      */
     @TestApi
     @SystemApi
-    public boolean isIPv4() {
+    public boolean isIpv4() {
         return address instanceof Inet4Address;
     }
 
@@ -217,7 +230,7 @@
      */
     @SystemApi
     @TestApi
-    public LinkAddress(String address, int flags, int scope) {
+    public LinkAddress(@NonNull String address, int flags, int scope) {
         // This may throw an IllegalArgumentException; catching it is the caller's responsibility.
         // TODO: consider rejecting mapped IPv4 addresses such as "::ffff:192.0.2.5/24".
         Pair<InetAddress, Integer> ipAndMask = NetworkUtils.parseIpAndMask(address);
@@ -276,7 +289,10 @@
      */
     @TestApi
     @SystemApi
-    public boolean isSameAddressAs(LinkAddress other) {
+    public boolean isSameAddressAs(@Nullable LinkAddress other) {
+        if (other == null) {
+            return false;
+        }
         return address.equals(other.address) && prefixLength == other.prefixLength;
     }
 
@@ -331,10 +347,10 @@
          * state has cleared either DAD has succeeded or failed, and both
          * flags are cleared regardless).
          */
-        return (scope == RT_SCOPE_UNIVERSE &&
-                !isIPv6ULA() &&
-                (flags & (IFA_F_DADFAILED | IFA_F_DEPRECATED)) == 0L &&
-                ((flags & IFA_F_TENTATIVE) == 0L || (flags & IFA_F_OPTIMISTIC) != 0L));
+        return (scope == RT_SCOPE_UNIVERSE
+                && !isIpv6ULA()
+                && (flags & (IFA_F_DADFAILED | IFA_F_DEPRECATED)) == 0L
+                && ((flags & IFA_F_TENTATIVE) == 0L || (flags & IFA_F_OPTIMISTIC) != 0L));
     }
 
     /**
diff --git a/core/java/android/net/LinkProperties.java b/core/java/android/net/LinkProperties.java
index 42db0fd..03d6d48 100644
--- a/core/java/android/net/LinkProperties.java
+++ b/core/java/android/net/LinkProperties.java
@@ -54,11 +54,11 @@
     // The interface described by the network link.
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
     private String mIfaceName;
-    private ArrayList<LinkAddress> mLinkAddresses = new ArrayList<>();
-    private ArrayList<InetAddress> mDnses = new ArrayList<>();
+    private final ArrayList<LinkAddress> mLinkAddresses = new ArrayList<>();
+    private final ArrayList<InetAddress> mDnses = new ArrayList<>();
     // PCSCF addresses are addresses of SIP proxies that only exist for the IMS core service.
-    private ArrayList<InetAddress> mPcscfs = new ArrayList<InetAddress>();
-    private ArrayList<InetAddress> mValidatedPrivateDnses = new ArrayList<>();
+    private final ArrayList<InetAddress> mPcscfs = new ArrayList<InetAddress>();
+    private final ArrayList<InetAddress> mValidatedPrivateDnses = new ArrayList<>();
     private boolean mUsePrivateDns;
     private String mPrivateDnsServerName;
     private String mDomains;
@@ -150,8 +150,8 @@
             // connections getting stuck until timeouts fire and other
             // baffling failures. Therefore, loss of either IPv4 or IPv6 on a
             // previously dual-stack network is deemed a lost of provisioning.
-            if ((before.isIPv4Provisioned() && !after.isIPv4Provisioned()) ||
-                (before.isIPv6Provisioned() && !after.isIPv6Provisioned())) {
+            if ((before.isIpv4Provisioned() && !after.isIpv4Provisioned())
+                    || (before.isIpv6Provisioned() && !after.isIpv6Provisioned())) {
                 return ProvisioningChange.LOST_PROVISIONING;
             }
             return ProvisioningChange.STILL_PROVISIONED;
@@ -165,9 +165,8 @@
     }
 
     /**
-     * @hide
+     * Constructs a new {@code LinkProperties} with default values.
      */
-    @SystemApi
     public LinkProperties() {
     }
 
@@ -176,7 +175,7 @@
      */
     @SystemApi
     @TestApi
-    public LinkProperties(LinkProperties source) {
+    public LinkProperties(@Nullable LinkProperties source) {
         if (source != null) {
             mIfaceName = source.mIfaceName;
             mLinkAddresses.addAll(source.mLinkAddresses);
@@ -202,10 +201,8 @@
      * will have their interface changed to match this new value.
      *
      * @param iface The name of the network interface used for this link.
-     * @hide
      */
-    @SystemApi
-    public void setInterfaceName(String iface) {
+    public void setInterfaceName(@Nullable String iface) {
         mIfaceName = iface;
         ArrayList<RouteInfo> newRoutes = new ArrayList<>(mRoutes.size());
         for (RouteInfo route : mRoutes) {
@@ -227,7 +224,7 @@
      * @hide
      */
     @UnsupportedAppUsage
-    public List<String> getAllInterfaceNames() {
+    public @NonNull List<String> getAllInterfaceNames() {
         List<String> interfaceNames = new ArrayList<>(mStackedLinks.size() + 1);
         if (mIfaceName != null) interfaceNames.add(mIfaceName);
         for (LinkProperties stacked: mStackedLinks.values()) {
@@ -247,8 +244,8 @@
      * @hide
      */
     @UnsupportedAppUsage
-    public List<InetAddress> getAddresses() {
-        List<InetAddress> addresses = new ArrayList<>();
+    public @NonNull List<InetAddress> getAddresses() {
+        final List<InetAddress> addresses = new ArrayList<>();
         for (LinkAddress linkAddress : mLinkAddresses) {
             addresses.add(linkAddress.getAddress());
         }
@@ -260,7 +257,7 @@
      * @hide
      */
     @UnsupportedAppUsage
-    public List<InetAddress> getAllAddresses() {
+    public @NonNull List<InetAddress> getAllAddresses() {
         List<InetAddress> addresses = new ArrayList<>();
         for (LinkAddress linkAddress : mLinkAddresses) {
             addresses.add(linkAddress.getAddress());
@@ -289,7 +286,7 @@
      */
     @SystemApi
     @TestApi
-    public boolean addLinkAddress(LinkAddress address) {
+    public boolean addLinkAddress(@NonNull LinkAddress address) {
         if (address == null) {
             return false;
         }
@@ -318,7 +315,10 @@
      */
     @SystemApi
     @TestApi
-    public boolean removeLinkAddress(LinkAddress toRemove) {
+    public boolean removeLinkAddress(@NonNull LinkAddress toRemove) {
+        if (toRemove == null) {
+            return false;
+        }
         int i = findLinkAddressIndex(toRemove);
         if (i >= 0) {
             mLinkAddresses.remove(i);
@@ -333,7 +333,7 @@
      *
      * @return An unmodifiable {@link List} of {@link LinkAddress} for this link.
      */
-    public List<LinkAddress> getLinkAddresses() {
+    public @NonNull List<LinkAddress> getLinkAddresses() {
         return Collections.unmodifiableList(mLinkAddresses);
     }
 
@@ -356,10 +356,8 @@
      *
      * @param addresses The {@link Collection} of {@link LinkAddress} to set in this
      *                  object.
-     * @hide
      */
-    @SystemApi
-    public void setLinkAddresses(Collection<LinkAddress> addresses) {
+    public void setLinkAddresses(@NonNull Collection<LinkAddress> addresses) {
         mLinkAddresses.clear();
         for (LinkAddress address: addresses) {
             addLinkAddress(address);
@@ -375,7 +373,7 @@
      */
     @TestApi
     @SystemApi
-    public boolean addDnsServer(InetAddress dnsServer) {
+    public boolean addDnsServer(@NonNull InetAddress dnsServer) {
         if (dnsServer != null && !mDnses.contains(dnsServer)) {
             mDnses.add(dnsServer);
             return true;
@@ -392,7 +390,7 @@
      */
     @TestApi
     @SystemApi
-    public boolean removeDnsServer(InetAddress dnsServer) {
+    public boolean removeDnsServer(@NonNull InetAddress dnsServer) {
         if (dnsServer != null) {
             return mDnses.remove(dnsServer);
         }
@@ -404,10 +402,8 @@
      * the given {@link Collection} of {@link InetAddress} objects.
      *
      * @param dnsServers The {@link Collection} of DNS servers to set in this object.
-     * @hide
      */
-    @SystemApi
-    public void setDnsServers(Collection<InetAddress> dnsServers) {
+    public void setDnsServers(@NonNull Collection<InetAddress> dnsServers) {
         mDnses.clear();
         for (InetAddress dnsServer: dnsServers) {
             addDnsServer(dnsServer);
@@ -420,7 +416,7 @@
      * @return An unmodifiable {@link List} of {@link InetAddress} for DNS servers on
      *         this link.
      */
-    public List<InetAddress> getDnsServers() {
+    public @NonNull List<InetAddress> getDnsServers() {
         return Collections.unmodifiableList(mDnses);
     }
 
@@ -490,7 +486,7 @@
      * @return true if the DNS server was added, false if it was already present.
      * @hide
      */
-    public boolean addValidatedPrivateDnsServer(InetAddress dnsServer) {
+    public boolean addValidatedPrivateDnsServer(@NonNull InetAddress dnsServer) {
         if (dnsServer != null && !mValidatedPrivateDnses.contains(dnsServer)) {
             mValidatedPrivateDnses.add(dnsServer);
             return true;
@@ -506,11 +502,8 @@
      * @return true if the DNS server was removed, false if it did not exist.
      * @hide
      */
-    public boolean removeValidatedPrivateDnsServer(InetAddress dnsServer) {
-        if (dnsServer != null) {
-            return mValidatedPrivateDnses.remove(dnsServer);
-        }
-        return false;
+    public boolean removeValidatedPrivateDnsServer(@NonNull InetAddress dnsServer) {
+        return mValidatedPrivateDnses.remove(dnsServer);
     }
 
     /**
@@ -523,7 +516,7 @@
      */
     @TestApi
     @SystemApi
-    public void setValidatedPrivateDnsServers(Collection<InetAddress> dnsServers) {
+    public void setValidatedPrivateDnsServers(@NonNull Collection<InetAddress> dnsServers) {
         mValidatedPrivateDnses.clear();
         for (InetAddress dnsServer: dnsServers) {
             addValidatedPrivateDnsServer(dnsServer);
@@ -534,13 +527,13 @@
      * Returns all the {@link InetAddress} for validated private DNS servers on this link.
      * These are resolved from the private DNS server name.
      *
-     * @return An umodifiable {@link List} of {@link InetAddress} for validated private
+     * @return An unmodifiable {@link List} of {@link InetAddress} for validated private
      *         DNS servers on this link.
      * @hide
      */
     @TestApi
     @SystemApi
-    public List<InetAddress> getValidatedPrivateDnsServers() {
+    public @NonNull List<InetAddress> getValidatedPrivateDnsServers() {
         return Collections.unmodifiableList(mValidatedPrivateDnses);
     }
 
@@ -551,7 +544,7 @@
      * @return true if the PCSCF server was added, false otherwise.
      * @hide
      */
-    public boolean addPcscfServer(InetAddress pcscfServer) {
+    public boolean addPcscfServer(@NonNull InetAddress pcscfServer) {
         if (pcscfServer != null && !mPcscfs.contains(pcscfServer)) {
             mPcscfs.add(pcscfServer);
             return true;
@@ -562,27 +555,24 @@
     /**
      * Removes the given {@link InetAddress} from the list of PCSCF servers.
      *
-     * @param pcscf Server The {@link InetAddress} to remove from the list of PCSCF servers.
+     * @param pcscfServer The {@link InetAddress} to remove from the list of PCSCF servers.
      * @return true if the PCSCF server was removed, false otherwise.
      * @hide
      */
-    public boolean removePcscfServer(InetAddress pcscfServer) {
-        if (pcscfServer != null) {
-            return mPcscfs.remove(pcscfServer);
-        }
-        return false;
+    public boolean removePcscfServer(@NonNull InetAddress pcscfServer) {
+        return mPcscfs.remove(pcscfServer);
     }
 
     /**
      * Replaces the PCSCF servers in this {@code LinkProperties} with
      * the given {@link Collection} of {@link InetAddress} objects.
      *
-     * @param addresses The {@link Collection} of PCSCF servers to set in this object.
+     * @param pcscfServers The {@link Collection} of PCSCF servers to set in this object.
      * @hide
      */
     @SystemApi
     @TestApi
-    public void setPcscfServers(Collection<InetAddress> pcscfServers) {
+    public void setPcscfServers(@NonNull Collection<InetAddress> pcscfServers) {
         mPcscfs.clear();
         for (InetAddress pcscfServer: pcscfServers) {
             addPcscfServer(pcscfServer);
@@ -598,7 +588,7 @@
      */
     @SystemApi
     @TestApi
-    public List<InetAddress> getPcscfServers() {
+    public @NonNull List<InetAddress> getPcscfServers() {
         return Collections.unmodifiableList(mPcscfs);
     }
 
@@ -607,20 +597,18 @@
      *
      * @param domains A {@link String} listing in priority order the comma separated
      *                domains to search when resolving host names on this link.
-     * @hide
      */
-    @SystemApi
-    public void setDomains(String domains) {
+    public void setDomains(@Nullable String domains) {
         mDomains = domains;
     }
 
     /**
-     * Get the DNS domains search path set for this link.
+     * Get the DNS domains search path set for this link. May be {@code null} if not set.
      *
-     * @return A {@link String} containing the comma separated domains to search when resolving
-     *         host names on this link.
+     * @return A {@link String} containing the comma separated domains to search when resolving host
+     *         names on this link or {@code null}.
      */
-    public String getDomains() {
+    public @Nullable String getDomains() {
         return mDomains;
     }
 
@@ -630,9 +618,7 @@
      * 10000 will be ignored.
      *
      * @param mtu The MTU to use for this link.
-     * @hide
      */
-    @SystemApi
     public void setMtu(int mtu) {
         mMtu = mtu;
     }
@@ -657,20 +643,20 @@
      */
     @TestApi
     @SystemApi
-    public void setTcpBufferSizes(String tcpBufferSizes) {
+    public void setTcpBufferSizes(@Nullable String tcpBufferSizes) {
         mTcpBufferSizes = tcpBufferSizes;
     }
 
     /**
-     * Gets the tcp buffer sizes.
+     * Gets the tcp buffer sizes. May be {@code null} if not set.
      *
-     * @return the tcp buffer sizes to use when this link is the system default.
+     * @return the tcp buffer sizes to use when this link is the system default or {@code null}.
      *
      * @hide
      */
     @TestApi
     @SystemApi
-    public String getTcpBufferSizes() {
+    public @Nullable String getTcpBufferSizes() {
         return mTcpBufferSizes;
     }
 
@@ -690,23 +676,18 @@
      *
      * @param route A {@link RouteInfo} to add to this object.
      * @return {@code false} if the route was already present, {@code true} if it was added.
-     *
-     * @hide
      */
-    @SystemApi
-    public boolean addRoute(RouteInfo route) {
-        if (route != null) {
-            String routeIface = route.getInterface();
-            if (routeIface != null && !routeIface.equals(mIfaceName)) {
-                throw new IllegalArgumentException(
-                   "Route added with non-matching interface: " + routeIface +
-                   " vs. " + mIfaceName);
-            }
-            route = routeWithInterface(route);
-            if (!mRoutes.contains(route)) {
-                mRoutes.add(route);
-                return true;
-            }
+    public boolean addRoute(@NonNull RouteInfo route) {
+        String routeIface = route.getInterface();
+        if (routeIface != null && !routeIface.equals(mIfaceName)) {
+            throw new IllegalArgumentException(
+                    "Route added with non-matching interface: " + routeIface
+                            + " vs. " + mIfaceName);
+        }
+        route = routeWithInterface(route);
+        if (!mRoutes.contains(route)) {
+            mRoutes.add(route);
+            return true;
         }
         return false;
     }
@@ -722,10 +703,8 @@
      */
     @TestApi
     @SystemApi
-    public boolean removeRoute(RouteInfo route) {
-        return route != null &&
-                Objects.equals(mIfaceName, route.getInterface()) &&
-                mRoutes.remove(route);
+    public boolean removeRoute(@NonNull RouteInfo route) {
+        return Objects.equals(mIfaceName, route.getInterface()) && mRoutes.remove(route);
     }
 
     /**
@@ -733,7 +712,7 @@
      *
      * @return An unmodifiable {@link List} of {@link RouteInfo} for this link.
      */
-    public List<RouteInfo> getRoutes() {
+    public @NonNull List<RouteInfo> getRoutes() {
         return Collections.unmodifiableList(mRoutes);
     }
 
@@ -753,7 +732,7 @@
      * @hide
      */
     @UnsupportedAppUsage
-    public List<RouteInfo> getAllRoutes() {
+    public @NonNull List<RouteInfo> getAllRoutes() {
         List<RouteInfo> routes = new ArrayList<>(mRoutes);
         for (LinkProperties stacked: mStackedLinks.values()) {
             routes.addAll(stacked.getAllRoutes());
@@ -767,26 +746,24 @@
      * not enforce it and applications may ignore them.
      *
      * @param proxy A {@link ProxyInfo} defining the HTTP Proxy to use on this link.
-     * @hide
      */
-    @SystemApi
-    public void setHttpProxy(ProxyInfo proxy) {
+    public void setHttpProxy(@Nullable ProxyInfo proxy) {
         mHttpProxy = proxy;
     }
 
     /**
      * Gets the recommended {@link ProxyInfo} (or {@code null}) set on this link.
      *
-     * @return The {@link ProxyInfo} set on this link
+     * @return The {@link ProxyInfo} set on this link or {@code null}.
      */
-    public ProxyInfo getHttpProxy() {
+    public @Nullable ProxyInfo getHttpProxy() {
         return mHttpProxy;
     }
 
     /**
      * Returns the NAT64 prefix in use on this link, if any.
      *
-     * @return the NAT64 prefix.
+     * @return the NAT64 prefix or {@code null}.
      * @hide
      */
     @SystemApi
@@ -799,14 +776,14 @@
      * Sets the NAT64 prefix in use on this link.
      *
      * Currently, only 96-bit prefixes (i.e., where the 32-bit IPv4 address is at the end of the
-     * 128-bit IPv6 address) are supported.
+     * 128-bit IPv6 address) are supported or {@code null} for no prefix.
      *
      * @param prefix the NAT64 prefix.
      * @hide
      */
     @SystemApi
     @TestApi
-    public void setNat64Prefix(IpPrefix prefix) {
+    public void setNat64Prefix(@Nullable IpPrefix prefix) {
         if (prefix != null && prefix.getPrefixLength() != 96) {
             throw new IllegalArgumentException("Only 96-bit prefixes are supported: " + prefix);
         }
@@ -818,15 +795,15 @@
      *
      * If there is already a stacked link with the same interface name as link,
      * that link is replaced with link. Otherwise, link is added to the list
-     * of stacked links. If link is null, nothing changes.
+     * of stacked links.
      *
      * @param link The link to add.
      * @return true if the link was stacked, false otherwise.
      * @hide
      */
     @UnsupportedAppUsage
-    public boolean addStackedLink(LinkProperties link) {
-        if (link != null && link.getInterfaceName() != null) {
+    public boolean addStackedLink(@NonNull LinkProperties link) {
+        if (link.getInterfaceName() != null) {
             mStackedLinks.put(link.getInterfaceName(), link);
             return true;
         }
@@ -843,12 +820,9 @@
      * @return true if the link was removed, false otherwise.
      * @hide
      */
-    public boolean removeStackedLink(String iface) {
-        if (iface != null) {
-            LinkProperties removed = mStackedLinks.remove(iface);
-            return removed != null;
-        }
-        return false;
+    public boolean removeStackedLink(@NonNull String iface) {
+        LinkProperties removed = mStackedLinks.remove(iface);
+        return removed != null;
     }
 
     /**
@@ -860,7 +834,7 @@
         if (mStackedLinks.isEmpty()) {
             return Collections.emptyList();
         }
-        List<LinkProperties> stacked = new ArrayList<>();
+        final List<LinkProperties> stacked = new ArrayList<>();
         for (LinkProperties link : mStackedLinks.values()) {
             stacked.add(new LinkProperties(link));
         }
@@ -869,9 +843,7 @@
 
     /**
      * Clears this object to its initial state.
-     * @hide
      */
-    @SystemApi
     public void clear() {
         mIfaceName = null;
         mLinkAddresses.clear();
@@ -988,7 +960,7 @@
      */
     @TestApi
     @SystemApi
-    public boolean hasIPv4Address() {
+    public boolean hasIpv4Address() {
         for (LinkAddress address : mLinkAddresses) {
             if (address.getAddress() instanceof Inet4Address) {
                 return true;
@@ -998,15 +970,27 @@
     }
 
     /**
+     * For backward compatibility.
+     * This was annotated with @UnsupportedAppUsage in P, so we can't remove the method completely
+     * just yet.
+     * @return {@code true} if there is an IPv4 address, {@code false} otherwise.
+     * @hide
+     */
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
+    public boolean hasIPv4Address() {
+        return hasIpv4Address();
+    }
+
+    /**
      * Returns true if this link or any of its stacked interfaces has an IPv4 address.
      *
      * @return {@code true} if there is an IPv4 address, {@code false} otherwise.
      */
-    private boolean hasIPv4AddressOnInterface(String iface) {
+    private boolean hasIpv4AddressOnInterface(String iface) {
         // mIfaceName can be null.
-        return (Objects.equals(iface, mIfaceName) && hasIPv4Address()) ||
-                (iface != null && mStackedLinks.containsKey(iface) &&
-                        mStackedLinks.get(iface).hasIPv4Address());
+        return (Objects.equals(iface, mIfaceName) && hasIpv4Address())
+                || (iface != null && mStackedLinks.containsKey(iface)
+                        && mStackedLinks.get(iface).hasIpv4Address());
     }
 
     /**
@@ -1017,7 +1001,7 @@
      */
     @TestApi
     @SystemApi
-    public boolean hasGlobalIPv6Address() {
+    public boolean hasGlobalIpv6Address() {
         for (LinkAddress address : mLinkAddresses) {
           if (address.getAddress() instanceof Inet6Address && address.isGlobalPreferred()) {
             return true;
@@ -1027,13 +1011,25 @@
     }
 
     /**
+     * For backward compatibility.
+     * This was annotated with @UnsupportedAppUsage in P, so we can't remove the method completely
+     * just yet.
+     * @return {@code true} if there is a global preferred IPv6 address, {@code false} otherwise.
+     * @hide
+     */
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
+    public boolean hasGlobalIPv6Address() {
+        return hasGlobalIpv6Address();
+    }
+
+    /**
      * Returns true if this link has an IPv4 default route.
      *
      * @return {@code true} if there is an IPv4 default route, {@code false} otherwise.
      * @hide
      */
     @UnsupportedAppUsage
-    public boolean hasIPv4DefaultRoute() {
+    public boolean hasIpv4DefaultRoute() {
         for (RouteInfo r : mRoutes) {
             if (r.isIPv4Default()) {
                 return true;
@@ -1043,6 +1039,18 @@
     }
 
     /**
+     * For backward compatibility.
+     * This was annotated with @UnsupportedAppUsage in P, so we can't remove the method completely
+     * just yet.
+     * @return {@code true} if there is an IPv4 default route, {@code false} otherwise.
+     * @hide
+     */
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
+    public boolean hasIPv4DefaultRoute() {
+        return hasIpv4DefaultRoute();
+    }
+
+    /**
      * Returns true if this link has an IPv6 default route.
      *
      * @return {@code true} if there is an IPv6 default route, {@code false} otherwise.
@@ -1050,7 +1058,7 @@
      */
     @TestApi
     @SystemApi
-    public boolean hasIPv6DefaultRoute() {
+    public boolean hasIpv6DefaultRoute() {
         for (RouteInfo r : mRoutes) {
             if (r.isIPv6Default()) {
                 return true;
@@ -1060,13 +1068,25 @@
     }
 
     /**
+     * For backward compatibility.
+     * This was annotated with @UnsupportedAppUsage in P, so we can't remove the method completely
+     * just yet.
+     * @return {@code true} if there is an IPv6 default route, {@code false} otherwise.
+     * @hide
+     */
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
+    public boolean hasIPv6DefaultRoute() {
+        return hasIpv6DefaultRoute();
+    }
+
+    /**
      * Returns true if this link has an IPv4 DNS server.
      *
      * @return {@code true} if there is an IPv4 DNS server, {@code false} otherwise.
      * @hide
      */
     @UnsupportedAppUsage
-    public boolean hasIPv4DnsServer() {
+    public boolean hasIpv4DnsServer() {
         for (InetAddress ia : mDnses) {
             if (ia instanceof Inet4Address) {
                 return true;
@@ -1076,13 +1096,25 @@
     }
 
     /**
+     * For backward compatibility.
+     * This was annotated with @UnsupportedAppUsage in P, so we can't remove the method completely
+     * just yet.
+     * @return {@code true} if there is an IPv4 DNS server, {@code false} otherwise.
+     * @hide
+     */
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
+    public boolean hasIPv4DnsServer() {
+        return hasIpv4DnsServer();
+    }
+
+    /**
      * Returns true if this link has an IPv6 DNS server.
      *
      * @return {@code true} if there is an IPv6 DNS server, {@code false} otherwise.
      * @hide
      */
     @UnsupportedAppUsage
-    public boolean hasIPv6DnsServer() {
+    public boolean hasIpv6DnsServer() {
         for (InetAddress ia : mDnses) {
             if (ia instanceof Inet6Address) {
                 return true;
@@ -1092,12 +1124,24 @@
     }
 
     /**
+     * For backward compatibility.
+     * This was annotated with @UnsupportedAppUsage in P, so we can't remove the method completely
+     * just yet.
+     * @return {@code true} if there is an IPv6 DNS server, {@code false} otherwise.
+     * @hide
+     */
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
+    public boolean hasIPv6DnsServer() {
+        return hasIpv6DnsServer();
+    }
+
+    /**
      * Returns true if this link has an IPv4 PCSCF server.
      *
      * @return {@code true} if there is an IPv4 PCSCF server, {@code false} otherwise.
      * @hide
      */
-    public boolean hasIPv4PcscfServer() {
+    public boolean hasIpv4PcscfServer() {
         for (InetAddress ia : mPcscfs) {
           if (ia instanceof Inet4Address) {
             return true;
@@ -1112,7 +1156,7 @@
      * @return {@code true} if there is an IPv6 PCSCF server, {@code false} otherwise.
      * @hide
      */
-    public boolean hasIPv6PcscfServer() {
+    public boolean hasIpv6PcscfServer() {
         for (InetAddress ia : mPcscfs) {
           if (ia instanceof Inet6Address) {
             return true;
@@ -1130,10 +1174,10 @@
      */
     @TestApi
     @SystemApi
-    public boolean isIPv4Provisioned() {
-        return (hasIPv4Address() &&
-                hasIPv4DefaultRoute() &&
-                hasIPv4DnsServer());
+    public boolean isIpv4Provisioned() {
+        return (hasIpv4Address()
+                && hasIpv4DefaultRoute()
+                && hasIpv4DnsServer());
     }
 
     /**
@@ -1145,13 +1189,26 @@
      */
     @TestApi
     @SystemApi
-    public boolean isIPv6Provisioned() {
-        return (hasGlobalIPv6Address() &&
-                hasIPv6DefaultRoute() &&
-                hasIPv6DnsServer());
+    public boolean isIpv6Provisioned() {
+        return (hasGlobalIpv6Address()
+                && hasIpv6DefaultRoute()
+                && hasIpv6DnsServer());
     }
 
     /**
+     * For backward compatibility.
+     * This was annotated with @UnsupportedAppUsage in P, so we can't remove the method completely
+     * just yet.
+     * @return {@code true} if the link is provisioned, {@code false} otherwise.
+     * @hide
+     */
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
+    public boolean isIPv6Provisioned() {
+        return isIpv6Provisioned();
+    }
+
+
+    /**
      * Returns true if this link is provisioned for global connectivity,
      * for at least one Internet Protocol family.
      *
@@ -1161,7 +1218,7 @@
     @TestApi
     @SystemApi
     public boolean isProvisioned() {
-        return (isIPv4Provisioned() || isIPv6Provisioned());
+        return (isIpv4Provisioned() || isIpv6Provisioned());
     }
 
     /**
@@ -1173,7 +1230,7 @@
      */
     @TestApi
     @SystemApi
-    public boolean isReachable(InetAddress ip) {
+    public boolean isReachable(@NonNull InetAddress ip) {
         final List<RouteInfo> allRoutes = getAllRoutes();
         // If we don't have a route to this IP address, it's not reachable.
         final RouteInfo bestRoute = RouteInfo.selectBestRoute(allRoutes, ip);
@@ -1185,7 +1242,7 @@
 
         if (ip instanceof Inet4Address) {
             // For IPv4, it suffices for now to simply have any address.
-            return hasIPv4AddressOnInterface(bestRoute.getInterface());
+            return hasIpv4AddressOnInterface(bestRoute.getInterface());
         } else if (ip instanceof Inet6Address) {
             if (ip.isLinkLocalAddress()) {
                 // For now, just make sure link-local destinations have
@@ -1196,7 +1253,7 @@
                 // For non-link-local destinations check that either the best route
                 // is directly connected or that some global preferred address exists.
                 // TODO: reconsider all cases (disconnected ULA networks, ...).
-                return (!bestRoute.hasGateway() || hasGlobalIPv6Address());
+                return (!bestRoute.hasGateway() || hasGlobalIpv6Address());
             }
         }
 
@@ -1211,7 +1268,7 @@
      * @hide
      */
     @UnsupportedAppUsage
-    public boolean isIdenticalInterfaceName(LinkProperties target) {
+    public boolean isIdenticalInterfaceName(@NonNull LinkProperties target) {
         return TextUtils.equals(getInterfaceName(), target.getInterfaceName());
     }
 
@@ -1223,7 +1280,7 @@
      * @hide
      */
     @UnsupportedAppUsage
-    public boolean isIdenticalAddresses(LinkProperties target) {
+    public boolean isIdenticalAddresses(@NonNull LinkProperties target) {
         Collection<InetAddress> targetAddresses = target.getAddresses();
         Collection<InetAddress> sourceAddresses = getAddresses();
         return (sourceAddresses.size() == targetAddresses.size()) ?
@@ -1238,7 +1295,7 @@
      * @hide
      */
     @UnsupportedAppUsage
-    public boolean isIdenticalDnses(LinkProperties target) {
+    public boolean isIdenticalDnses(@NonNull LinkProperties target) {
         Collection<InetAddress> targetDnses = target.getDnsServers();
         String targetDomains = target.getDomains();
         if (mDomains == null) {
@@ -1258,7 +1315,7 @@
      * @return {@code true} if both are identical, {@code false} otherwise.
      * @hide
      */
-    public boolean isIdenticalPrivateDns(LinkProperties target) {
+    public boolean isIdenticalPrivateDns(@NonNull LinkProperties target) {
         return (isPrivateDnsActive() == target.isPrivateDnsActive()
                 && TextUtils.equals(getPrivateDnsServerName(),
                 target.getPrivateDnsServerName()));
@@ -1272,7 +1329,7 @@
      * @return {@code true} if both are identical, {@code false} otherwise.
      * @hide
      */
-    public boolean isIdenticalValidatedPrivateDnses(LinkProperties target) {
+    public boolean isIdenticalValidatedPrivateDnses(@NonNull LinkProperties target) {
         Collection<InetAddress> targetDnses = target.getValidatedPrivateDnsServers();
         return (mValidatedPrivateDnses.size() == targetDnses.size())
                 ? mValidatedPrivateDnses.containsAll(targetDnses) : false;
@@ -1285,7 +1342,7 @@
      * @return {@code true} if both are identical, {@code false} otherwise.
      * @hide
      */
-    public boolean isIdenticalPcscfs(LinkProperties target) {
+    public boolean isIdenticalPcscfs(@NonNull LinkProperties target) {
         Collection<InetAddress> targetPcscfs = target.getPcscfServers();
         return (mPcscfs.size() == targetPcscfs.size()) ?
                     mPcscfs.containsAll(targetPcscfs) : false;
@@ -1299,7 +1356,7 @@
      * @hide
      */
     @UnsupportedAppUsage
-    public boolean isIdenticalRoutes(LinkProperties target) {
+    public boolean isIdenticalRoutes(@NonNull LinkProperties target) {
         Collection<RouteInfo> targetRoutes = target.getRoutes();
         return (mRoutes.size() == targetRoutes.size()) ?
                 mRoutes.containsAll(targetRoutes) : false;
@@ -1313,7 +1370,7 @@
      * @hide
      */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
-    public boolean isIdenticalHttpProxy(LinkProperties target) {
+    public boolean isIdenticalHttpProxy(@NonNull LinkProperties target) {
         return getHttpProxy() == null ? target.getHttpProxy() == null :
                 getHttpProxy().equals(target.getHttpProxy());
     }
@@ -1326,7 +1383,7 @@
      * @hide
      */
     @UnsupportedAppUsage
-    public boolean isIdenticalStackedLinks(LinkProperties target) {
+    public boolean isIdenticalStackedLinks(@NonNull LinkProperties target) {
         if (!mStackedLinks.keySet().equals(target.mStackedLinks.keySet())) {
             return false;
         }
@@ -1347,7 +1404,7 @@
      * @return {@code true} if both are identical, {@code false} otherwise.
      * @hide
      */
-    public boolean isIdenticalMtu(LinkProperties target) {
+    public boolean isIdenticalMtu(@NonNull LinkProperties target) {
         return getMtu() == target.getMtu();
     }
 
@@ -1358,7 +1415,7 @@
      * @return {@code true} if both are identical, {@code false} otherwise.
      * @hide
      */
-    public boolean isIdenticalTcpBufferSizes(LinkProperties target) {
+    public boolean isIdenticalTcpBufferSizes(@NonNull LinkProperties target) {
         return Objects.equals(mTcpBufferSizes, target.mTcpBufferSizes);
     }
 
@@ -1369,7 +1426,7 @@
      * @return {@code true} if both are identical, {@code false} otherwise.
      * @hide
      */
-    public boolean isIdenticalNat64Prefix(LinkProperties target) {
+    public boolean isIdenticalNat64Prefix(@NonNull LinkProperties target) {
         return Objects.equals(mNat64Prefix, target.mNat64Prefix);
     }
 
@@ -1421,7 +1478,7 @@
      * @return the differences between the addresses.
      * @hide
      */
-    public CompareResult<LinkAddress> compareAddresses(LinkProperties target) {
+    public @NonNull CompareResult<LinkAddress> compareAddresses(@Nullable LinkProperties target) {
         /*
          * Duplicate the LinkAddresses into removed, we will be removing
          * address which are common between mLinkAddresses and target
@@ -1441,7 +1498,7 @@
      * @return the differences between the DNS addresses.
      * @hide
      */
-    public CompareResult<InetAddress> compareDnses(LinkProperties target) {
+    public @NonNull CompareResult<InetAddress> compareDnses(@Nullable LinkProperties target) {
         /*
          * Duplicate the InetAddresses into removed, we will be removing
          * dns address which are common between mDnses and target
@@ -1460,7 +1517,8 @@
      * @return the differences between the DNS addresses.
      * @hide
      */
-    public CompareResult<InetAddress> compareValidatedPrivateDnses(LinkProperties target) {
+    public @NonNull CompareResult<InetAddress> compareValidatedPrivateDnses(
+            @Nullable LinkProperties target) {
         return new CompareResult<>(mValidatedPrivateDnses,
                 target != null ? target.getValidatedPrivateDnsServers() : null);
     }
@@ -1473,7 +1531,7 @@
      * @return the differences between the routes.
      * @hide
      */
-    public CompareResult<RouteInfo> compareAllRoutes(LinkProperties target) {
+    public @NonNull CompareResult<RouteInfo> compareAllRoutes(@Nullable LinkProperties target) {
         /*
          * Duplicate the RouteInfos into removed, we will be removing
          * routes which are common between mRoutes and target
@@ -1491,7 +1549,8 @@
      * @return the differences between the interface names.
      * @hide
      */
-    public CompareResult<String> compareAllInterfaceNames(LinkProperties target) {
+    public @NonNull CompareResult<String> compareAllInterfaceNames(
+            @Nullable LinkProperties target) {
         /*
          * Duplicate the interface names into removed, we will be removing
          * interface names which are common between this and target
diff --git a/core/java/android/net/Network.java b/core/java/android/net/Network.java
index e04b5fc..09a86fc 100644
--- a/core/java/android/net/Network.java
+++ b/core/java/android/net/Network.java
@@ -16,6 +16,7 @@
 
 package android.net;
 
+import android.annotation.NonNull;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.annotation.UnsupportedAppUsage;
@@ -125,7 +126,7 @@
      */
     @SystemApi
     @TestApi
-    public Network(Network that) {
+    public Network(@NonNull Network that) {
         this(that.netId, that.mPrivateDnsBypass);
     }
 
@@ -163,7 +164,7 @@
      */
     @TestApi
     @SystemApi
-    public Network getPrivateDnsBypassingCopy() {
+    public @NonNull Network getPrivateDnsBypassingCopy() {
         return new Network(netId, true);
     }
 
diff --git a/core/java/android/net/NetworkCapabilities.java b/core/java/android/net/NetworkCapabilities.java
index e1cfe99..99375f8 100644
--- a/core/java/android/net/NetworkCapabilities.java
+++ b/core/java/android/net/NetworkCapabilities.java
@@ -17,6 +17,7 @@
 package android.net;
 
 import android.annotation.IntDef;
+import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
@@ -91,7 +92,7 @@
      * Set all contents of this object to the contents of a NetworkCapabilities.
      * @hide
      */
-    public void set(NetworkCapabilities nc) {
+    public void set(@NonNull NetworkCapabilities nc) {
         mNetworkCapabilities = nc.mNetworkCapabilities;
         mTransportTypes = nc.mTransportTypes;
         mLinkUpBandwidthKbps = nc.mLinkUpBandwidthKbps;
@@ -405,7 +406,7 @@
      * @hide
      */
     @UnsupportedAppUsage
-    public NetworkCapabilities addCapability(@NetCapability int capability) {
+    public @NonNull NetworkCapabilities addCapability(@NetCapability int capability) {
         checkValidCapability(capability);
         mNetworkCapabilities |= 1 << capability;
         mUnwantedNetworkCapabilities &= ~(1 << capability);  // remove from unwanted capability list
@@ -442,7 +443,7 @@
      * @hide
      */
     @UnsupportedAppUsage
-    public NetworkCapabilities removeCapability(@NetCapability int capability) {
+    public @NonNull NetworkCapabilities removeCapability(@NetCapability int capability) {
         checkValidCapability(capability);
         final long mask = ~(1 << capability);
         mNetworkCapabilities &= mask;
@@ -456,7 +457,8 @@
      *
      * @hide
      */
-    public NetworkCapabilities setCapability(@NetCapability int capability, boolean value) {
+    public @NonNull NetworkCapabilities setCapability(@NetCapability int capability,
+            boolean value) {
         if (value) {
             addCapability(capability);
         } else {
@@ -534,7 +536,7 @@
     }
 
     /** Note this method may result in having the same capability in wanted and unwanted lists. */
-    private void combineNetCapabilities(NetworkCapabilities nc) {
+    private void combineNetCapabilities(@NonNull NetworkCapabilities nc) {
         this.mNetworkCapabilities |= nc.mNetworkCapabilities;
         this.mUnwantedNetworkCapabilities |= nc.mUnwantedNetworkCapabilities;
     }
@@ -546,7 +548,7 @@
      *
      * @hide
      */
-    public String describeFirstNonRequestableCapability() {
+    public @Nullable String describeFirstNonRequestableCapability() {
         final long nonRequestable = (mNetworkCapabilities | mUnwantedNetworkCapabilities)
                 & NON_REQUESTABLE_CAPABILITIES;
 
@@ -558,7 +560,8 @@
         return null;
     }
 
-    private boolean satisfiedByNetCapabilities(NetworkCapabilities nc, boolean onlyImmutable) {
+    private boolean satisfiedByNetCapabilities(@NonNull NetworkCapabilities nc,
+            boolean onlyImmutable) {
         long requestedCapabilities = mNetworkCapabilities;
         long requestedUnwantedCapabilities = mUnwantedNetworkCapabilities;
         long providedCapabilities = nc.mNetworkCapabilities;
@@ -572,12 +575,12 @@
     }
 
     /** @hide */
-    public boolean equalsNetCapabilities(NetworkCapabilities nc) {
+    public boolean equalsNetCapabilities(@NonNull NetworkCapabilities nc) {
         return (nc.mNetworkCapabilities == this.mNetworkCapabilities)
                 && (nc.mUnwantedNetworkCapabilities == this.mUnwantedNetworkCapabilities);
     }
 
-    private boolean equalsNetCapabilitiesRequestable(NetworkCapabilities that) {
+    private boolean equalsNetCapabilitiesRequestable(@NonNull NetworkCapabilities that) {
         return ((this.mNetworkCapabilities & ~NON_REQUESTABLE_CAPABILITIES) ==
                 (that.mNetworkCapabilities & ~NON_REQUESTABLE_CAPABILITIES))
                 && ((this.mUnwantedNetworkCapabilities & ~NON_REQUESTABLE_CAPABILITIES) ==
@@ -713,7 +716,7 @@
      * @hide
      */
     @UnsupportedAppUsage
-    public NetworkCapabilities addTransportType(@Transport int transportType) {
+    public @NonNull NetworkCapabilities addTransportType(@Transport int transportType) {
         checkValidTransportType(transportType);
         mTransportTypes |= 1 << transportType;
         setNetworkSpecifier(mNetworkSpecifier); // used for exception checking
@@ -727,7 +730,7 @@
      * @return This NetworkCapabilities instance, to facilitate chaining.
      * @hide
      */
-    public NetworkCapabilities removeTransportType(@Transport int transportType) {
+    public @NonNull NetworkCapabilities removeTransportType(@Transport int transportType) {
         checkValidTransportType(transportType);
         mTransportTypes &= ~(1 << transportType);
         setNetworkSpecifier(mNetworkSpecifier); // used for exception checking
@@ -740,7 +743,8 @@
      *
      * @hide
      */
-    public NetworkCapabilities setTransportType(@Transport int transportType, boolean value) {
+    public @NonNull NetworkCapabilities setTransportType(@Transport int transportType,
+            boolean value) {
         if (value) {
             addTransportType(transportType);
         } else {
@@ -757,7 +761,7 @@
      */
     @TestApi
     @SystemApi
-    public @Transport int[] getTransportTypes() {
+    @NonNull public @Transport int[] getTransportTypes() {
         return BitUtils.unpackBits(mTransportTypes);
     }
 
@@ -847,7 +851,7 @@
      * @param upKbps the estimated first hop upstream (device to network) bandwidth.
      * @hide
      */
-    public NetworkCapabilities setLinkUpstreamBandwidthKbps(int upKbps) {
+    public @NonNull NetworkCapabilities setLinkUpstreamBandwidthKbps(int upKbps) {
         mLinkUpBandwidthKbps = upKbps;
         return this;
     }
@@ -877,7 +881,7 @@
      * @param downKbps the estimated first hop downstream (network to device) bandwidth.
      * @hide
      */
-    public NetworkCapabilities setLinkDownstreamBandwidthKbps(int downKbps) {
+    public @NonNull NetworkCapabilities setLinkDownstreamBandwidthKbps(int downKbps) {
         mLinkDownBandwidthKbps = downKbps;
         return this;
     }
@@ -936,7 +940,7 @@
      * @return This NetworkCapabilities instance, to facilitate chaining.
      * @hide
      */
-    public NetworkCapabilities setNetworkSpecifier(NetworkSpecifier networkSpecifier) {
+    public @NonNull NetworkCapabilities setNetworkSpecifier(NetworkSpecifier networkSpecifier) {
         if (networkSpecifier != null && Long.bitCount(mTransportTypes) != 1) {
             throw new IllegalStateException("Must have a single transport specified to use " +
                     "setNetworkSpecifier");
@@ -955,20 +959,20 @@
      * @return This NetworkCapabilities instance, to facilitate chaining.
      * @hide
      */
-    public NetworkCapabilities setTransportInfo(TransportInfo transportInfo) {
+    public @NonNull NetworkCapabilities setTransportInfo(TransportInfo transportInfo) {
         mTransportInfo = transportInfo;
         return this;
     }
 
     /**
-     * Gets the optional bearer specific network specifier.
+     * Gets the optional bearer specific network specifier. May be {@code null} if not set.
      *
      * @return The optional {@link NetworkSpecifier} specifying the bearer specific network
-     *         specifier. See {@link #setNetworkSpecifier}.
+     *         specifier or {@code null}. See {@link #setNetworkSpecifier}.
      * @hide
      */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
-    public NetworkSpecifier getNetworkSpecifier() {
+    public @Nullable NetworkSpecifier getNetworkSpecifier() {
         return mNetworkSpecifier;
     }
 
@@ -1015,8 +1019,6 @@
     /**
      * Magic value that indicates no signal strength provided. A request specifying this value is
      * always satisfied.
-     *
-     * @hide
      */
     public static final int SIGNAL_STRENGTH_UNSPECIFIED = Integer.MIN_VALUE;
 
@@ -1024,7 +1026,7 @@
      * Signal strength. This is a signed integer, and higher values indicate better signal.
      * The exact units are bearer-dependent. For example, Wi-Fi uses RSSI.
      */
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
     private int mSignalStrength = SIGNAL_STRENGTH_UNSPECIFIED;
 
     /**
@@ -1041,7 +1043,7 @@
      * @hide
      */
     @UnsupportedAppUsage
-    public NetworkCapabilities setSignalStrength(int signalStrength) {
+    public @NonNull NetworkCapabilities setSignalStrength(int signalStrength) {
         mSignalStrength = signalStrength;
         return this;
     }
@@ -1060,9 +1062,7 @@
      * Retrieves the signal strength.
      *
      * @return The bearer-specific signal strength.
-     * @hide
      */
-    @SystemApi
     public int getSignalStrength() {
         return mSignalStrength;
     }
@@ -1120,7 +1120,7 @@
      * Convenience method to set the UIDs this network applies to to a single UID.
      * @hide
      */
-    public NetworkCapabilities setSingleUid(int uid) {
+    public @NonNull NetworkCapabilities setSingleUid(int uid) {
         final ArraySet<UidRange> identity = new ArraySet<>(1);
         identity.add(new UidRange(uid, uid));
         setUids(identity);
@@ -1132,7 +1132,7 @@
      * This makes a copy of the set so that callers can't modify it after the call.
      * @hide
      */
-    public NetworkCapabilities setUids(Set<UidRange> uids) {
+    public @NonNull NetworkCapabilities setUids(Set<UidRange> uids) {
         if (null == uids) {
             mUids = null;
         } else {
@@ -1146,7 +1146,7 @@
      * This returns a copy of the set so that callers can't modify the original object.
      * @hide
      */
-    public Set<UidRange> getUids() {
+    public @Nullable Set<UidRange> getUids() {
         return null == mUids ? null : new ArraySet<>(mUids);
     }
 
@@ -1179,7 +1179,7 @@
      * @hide
      */
     @VisibleForTesting
-    public boolean equalsUids(NetworkCapabilities nc) {
+    public boolean equalsUids(@NonNull NetworkCapabilities nc) {
         Set<UidRange> comparedUids = nc.mUids;
         if (null == comparedUids) return null == mUids;
         if (null == mUids) return false;
@@ -1212,7 +1212,7 @@
      * @see #appliesToUid
      * @hide
      */
-    public boolean satisfiedByUids(NetworkCapabilities nc) {
+    public boolean satisfiedByUids(@NonNull NetworkCapabilities nc) {
         if (null == nc.mUids || null == mUids) return true; // The network satisfies everything.
         for (UidRange requiredRange : mUids) {
             if (requiredRange.contains(nc.mEstablishingVpnAppUid)) return true;
@@ -1232,7 +1232,7 @@
      * @hide
      */
     @VisibleForTesting
-    public boolean appliesToUidRange(UidRange requiredRange) {
+    public boolean appliesToUidRange(@Nullable UidRange requiredRange) {
         if (null == mUids) return true;
         for (UidRange uidRange : mUids) {
             if (uidRange.containsRange(requiredRange)) {
@@ -1247,7 +1247,7 @@
      * NetworkCapabilities apply to.
      * nc is assumed nonnull.
      */
-    private void combineUids(NetworkCapabilities nc) {
+    private void combineUids(@NonNull NetworkCapabilities nc) {
         if (null == nc.mUids || null == mUids) {
             mUids = null;
             return;
@@ -1268,7 +1268,7 @@
      * Sets the SSID of this network.
      * @hide
      */
-    public NetworkCapabilities setSSID(String ssid) {
+    public @NonNull NetworkCapabilities setSSID(@Nullable String ssid) {
         mSSID = ssid;
         return this;
     }
@@ -1277,7 +1277,7 @@
      * Gets the SSID of this network, or null if none or unknown.
      * @hide
      */
-    public String getSSID() {
+    public @Nullable String getSSID() {
         return mSSID;
     }
 
@@ -1285,7 +1285,7 @@
      * Tests if the SSID of this network is the same as the SSID of the passed network.
      * @hide
      */
-    public boolean equalsSSID(NetworkCapabilities nc) {
+    public boolean equalsSSID(@NonNull NetworkCapabilities nc) {
         return Objects.equals(mSSID, nc.mSSID);
     }
 
@@ -1293,7 +1293,7 @@
      * Check if the SSID requirements of this object are matched by the passed object.
      * @hide
      */
-    public boolean satisfiedBySSID(NetworkCapabilities nc) {
+    public boolean satisfiedBySSID(@NonNull NetworkCapabilities nc) {
         return mSSID == null || mSSID.equals(nc.mSSID);
     }
 
@@ -1304,7 +1304,7 @@
      * equal.
      * @hide
      */
-    private void combineSSIDs(NetworkCapabilities nc) {
+    private void combineSSIDs(@NonNull NetworkCapabilities nc) {
         if (mSSID != null && !mSSID.equals(nc.mSSID)) {
             throw new IllegalStateException("Can't combine two SSIDs");
         }
@@ -1319,7 +1319,7 @@
      * both lists will never be satisfied.
      * @hide
      */
-    public void combineCapabilities(NetworkCapabilities nc) {
+    public void combineCapabilities(@NonNull NetworkCapabilities nc) {
         combineNetCapabilities(nc);
         combineTransportTypes(nc);
         combineLinkBandwidths(nc);
@@ -1359,7 +1359,7 @@
      */
     @TestApi
     @SystemApi
-    public boolean satisfiedByNetworkCapabilities(NetworkCapabilities nc) {
+    public boolean satisfiedByNetworkCapabilities(@Nullable NetworkCapabilities nc) {
         return satisfiedByNetworkCapabilities(nc, false);
     }
 
@@ -1370,7 +1370,7 @@
      *
      * @hide
      */
-    public boolean satisfiedByImmutableNetworkCapabilities(NetworkCapabilities nc) {
+    public boolean satisfiedByImmutableNetworkCapabilities(@Nullable NetworkCapabilities nc) {
         return satisfiedByNetworkCapabilities(nc, true);
     }
 
@@ -1381,7 +1381,7 @@
      *
      * @hide
      */
-    public String describeImmutableDifferences(NetworkCapabilities that) {
+    public String describeImmutableDifferences(@Nullable NetworkCapabilities that) {
         if (that == null) {
             return "other NetworkCapabilities was null";
         }
@@ -1420,7 +1420,7 @@
      *
      * @hide
      */
-    public boolean equalRequestableCapabilities(NetworkCapabilities nc) {
+    public boolean equalRequestableCapabilities(@Nullable NetworkCapabilities nc) {
         if (nc == null) return false;
         return (equalsNetCapabilitiesRequestable(nc) &&
                 equalsTransportTypes(nc) &&
@@ -1428,7 +1428,7 @@
     }
 
     @Override
-    public boolean equals(Object obj) {
+    public boolean equals(@Nullable Object obj) {
         if (obj == null || (obj instanceof NetworkCapabilities == false)) return false;
         NetworkCapabilities that = (NetworkCapabilities) obj;
         return (equalsNetCapabilities(that)
@@ -1502,7 +1502,7 @@
         };
 
     @Override
-    public String toString() {
+    public @NonNull String toString() {
         final StringBuilder sb = new StringBuilder("[");
         if (0 != mTransportTypes) {
             sb.append(" Transports: ");
@@ -1561,8 +1561,8 @@
     /**
      * @hide
      */
-    public static void appendStringRepresentationOfBitMaskToStringBuilder(StringBuilder sb,
-            long bitMask, NameOf nameFetcher, String separator) {
+    public static void appendStringRepresentationOfBitMaskToStringBuilder(@NonNull StringBuilder sb,
+            long bitMask, @NonNull NameOf nameFetcher, @NonNull String separator) {
         int bitPos = 0;
         boolean firstElementAdded = false;
         while (bitMask != 0) {
@@ -1580,7 +1580,7 @@
     }
 
     /** @hide */
-    public void writeToProto(ProtoOutputStream proto, long fieldId) {
+    public void writeToProto(@NonNull ProtoOutputStream proto, long fieldId) {
         final long token = proto.start(fieldId);
 
         for (int transport : getTransportTypes()) {
@@ -1610,7 +1610,7 @@
     /**
      * @hide
      */
-    public static String capabilityNamesOf(@NetCapability int[] capabilities) {
+    public static @NonNull String capabilityNamesOf(@Nullable @NetCapability int[] capabilities) {
         StringJoiner joiner = new StringJoiner("|");
         if (capabilities != null) {
             for (int c : capabilities) {
@@ -1623,7 +1623,7 @@
     /**
      * @hide
      */
-    public static String capabilityNameOf(@NetCapability int capability) {
+    public static @NonNull String capabilityNameOf(@NetCapability int capability) {
         switch (capability) {
             case NET_CAPABILITY_MMS:                  return "MMS";
             case NET_CAPABILITY_SUPL:                 return "SUPL";
@@ -1658,7 +1658,7 @@
      * @hide
      */
     @UnsupportedAppUsage
-    public static String transportNamesOf(@Transport int[] types) {
+    public static @NonNull String transportNamesOf(@Nullable @Transport int[] types) {
         StringJoiner joiner = new StringJoiner("|");
         if (types != null) {
             for (int t : types) {
@@ -1671,7 +1671,7 @@
     /**
      * @hide
      */
-    public static String transportNameOf(@Transport int transport) {
+    public static @NonNull String transportNameOf(@Transport int transport) {
         if (!isValidTransport(transport)) {
             return "UNKNOWN";
         }
diff --git a/core/java/android/net/NetworkInfo.java b/core/java/android/net/NetworkInfo.java
index 89d9961..8fb5a20 100644
--- a/core/java/android/net/NetworkInfo.java
+++ b/core/java/android/net/NetworkInfo.java
@@ -16,6 +16,7 @@
 
 package android.net;
 
+import android.annotation.NonNull;
 import android.annotation.UnsupportedAppUsage;
 import android.os.Parcel;
 import android.os.Parcelable;
@@ -138,7 +139,9 @@
     private int mSubtype;
     private String mTypeName;
     private String mSubtypeName;
+    @NonNull
     private State mState;
+    @NonNull
     private DetailedState mDetailedState;
     private String mReason;
     private String mExtraInfo;
@@ -451,7 +454,7 @@
      *             the device and let apps react more easily and quickly to changes.
      */
     @Deprecated
-    public DetailedState getDetailedState() {
+    public @NonNull DetailedState getDetailedState() {
         synchronized (this) {
             return mDetailedState;
         }
diff --git a/core/java/android/net/NetworkRequest.java b/core/java/android/net/NetworkRequest.java
index 9508217..3a41a07 100644
--- a/core/java/android/net/NetworkRequest.java
+++ b/core/java/android/net/NetworkRequest.java
@@ -347,7 +347,7 @@
          * @hide
          */
         @SystemApi
-        public Builder setSignalStrength(int signalStrength) {
+        public @NonNull Builder setSignalStrength(int signalStrength) {
             mNetworkCapabilities.setSignalStrength(signalStrength);
             return this;
         }
diff --git a/core/java/android/net/RouteInfo.java b/core/java/android/net/RouteInfo.java
index 5c0f758..24d9b8e 100644
--- a/core/java/android/net/RouteInfo.java
+++ b/core/java/android/net/RouteInfo.java
@@ -16,6 +16,7 @@
 
 package android.net;
 
+import android.annotation.Nullable;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.annotation.UnsupportedAppUsage;
@@ -112,7 +113,8 @@
      */
     @SystemApi
     @TestApi
-    public RouteInfo(IpPrefix destination, InetAddress gateway, String iface, int type) {
+    public RouteInfo(@Nullable IpPrefix destination, @Nullable InetAddress gateway,
+            @Nullable String iface, int type) {
         switch (type) {
             case RTN_UNICAST:
             case RTN_UNREACHABLE:
diff --git a/core/java/android/net/StaticIpConfiguration.java b/core/java/android/net/StaticIpConfiguration.java
index 99cf3a9..0728d83 100644
--- a/core/java/android/net/StaticIpConfiguration.java
+++ b/core/java/android/net/StaticIpConfiguration.java
@@ -16,6 +16,8 @@
 
 package android.net;
 
+import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.annotation.UnsupportedAppUsage;
@@ -53,22 +55,26 @@
 public final class StaticIpConfiguration implements Parcelable {
     /** @hide */
     @UnsupportedAppUsage
+    @Nullable
     public LinkAddress ipAddress;
     /** @hide */
     @UnsupportedAppUsage
+    @Nullable
     public InetAddress gateway;
     /** @hide */
     @UnsupportedAppUsage
+    @NonNull
     public final ArrayList<InetAddress> dnsServers;
     /** @hide */
     @UnsupportedAppUsage
+    @Nullable
     public String domains;
 
     public StaticIpConfiguration() {
         dnsServers = new ArrayList<InetAddress>();
     }
 
-    public StaticIpConfiguration(StaticIpConfiguration source) {
+    public StaticIpConfiguration(@Nullable StaticIpConfiguration source) {
         this();
         if (source != null) {
             // All of these except dnsServers are immutable, so no need to make copies.
@@ -86,38 +92,38 @@
         domains = null;
     }
 
-    public LinkAddress getIpAddress() {
+    public @Nullable LinkAddress getIpAddress() {
         return ipAddress;
     }
 
-    public void setIpAddress(LinkAddress ipAddress) {
+    public void setIpAddress(@Nullable LinkAddress ipAddress) {
         this.ipAddress = ipAddress;
     }
 
-    public InetAddress getGateway() {
+    public @Nullable InetAddress getGateway() {
         return gateway;
     }
 
-    public void setGateway(InetAddress gateway) {
+    public void setGateway(@Nullable InetAddress gateway) {
         this.gateway = gateway;
     }
 
-    public List<InetAddress> getDnsServers() {
+    public @NonNull List<InetAddress> getDnsServers() {
         return dnsServers;
     }
 
-    public String getDomains() {
+    public @Nullable String getDomains() {
         return domains;
     }
 
-    public void setDomains(String newDomains) {
+    public void setDomains(@Nullable String newDomains) {
         domains = newDomains;
     }
 
     /**
      * Add a DNS server to this configuration.
      */
-    public void addDnsServer(InetAddress server) {
+    public void addDnsServer(@NonNull InetAddress server) {
         dnsServers.add(server);
     }
 
@@ -128,7 +134,7 @@
      * route to the gateway as well. This configuration is arguably invalid, but it used to work
      * in K and earlier, and other OSes appear to accept it.
      */
-    public List<RouteInfo> getRoutes(String iface) {
+    public @NonNull List<RouteInfo> getRoutes(String iface) {
         List<RouteInfo> routes = new ArrayList<RouteInfo>(3);
         if (ipAddress != null) {
             RouteInfo connectedRoute = new RouteInfo(ipAddress, null, iface);
@@ -150,7 +156,7 @@
      * IPv6 configuration) will not be included.
      * @hide
      */
-    public LinkProperties toLinkProperties(String iface) {
+    public @NonNull LinkProperties toLinkProperties(String iface) {
         LinkProperties lp = new LinkProperties();
         lp.setInterfaceName(iface);
         if (ipAddress != null) {
diff --git a/core/java/android/net/TcpKeepalivePacketDataParcelable.aidl b/core/java/android/net/TcpKeepalivePacketDataParcelable.aidl
index 7329c63..d66b6ae 100644
--- a/core/java/android/net/TcpKeepalivePacketDataParcelable.aidl
+++ b/core/java/android/net/TcpKeepalivePacketDataParcelable.aidl
@@ -23,4 +23,6 @@
     int dstPort;
     int seq;
     int ack;
+    int rcvWnd;
+    int rcvWndScale;
 }
diff --git a/core/java/android/net/UidRange.java b/core/java/android/net/UidRange.java
index 793c82d..fa0eeb9e 100644
--- a/core/java/android/net/UidRange.java
+++ b/core/java/android/net/UidRange.java
@@ -19,14 +19,17 @@
 import static android.os.UserHandle.PER_USER_RANGE;
 
 import android.os.Parcel;
+import android.os.Parcelable;
 
 /**
  * An inclusive range of UIDs.
  *
  * @hide
  */
-public final class UidRange extends UidRangeParcel {
-    private UidRange() {}
+public final class UidRange implements Parcelable {
+    public final int start;
+    public final int stop;
+
     public UidRange(int startUid, int stopUid) {
         if (startUid < 0) throw new IllegalArgumentException("Invalid start UID.");
         if (stopUid < 0) throw new IllegalArgumentException("Invalid stop UID.");
@@ -86,18 +89,28 @@
         return start + "-" + stop;
     }
 
-    /**
-     * DO NOT override "writeToParcel" and "readFromParcel" in this class.
-     * The parceling code is autogenerated by the superclass.
-     */
+    // Implement the Parcelable interface
+    // TODO: Consider making this class no longer parcelable, since all users are likely in the
+    // system server.
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeInt(start);
+        dest.writeInt(stop);
+    }
 
     public static final Creator<UidRange> CREATOR =
         new Creator<UidRange>() {
             @Override
             public UidRange createFromParcel(Parcel in) {
-                UidRange obj = new UidRange();
-                obj.readFromParcel(in);
-                return obj;
+                int start = in.readInt();
+                int stop = in.readInt();
+
+                return new UidRange(start, stop);
             }
             @Override
             public UidRange[] newArray(int size) {
diff --git a/core/java/android/net/apf/ApfCapabilities.java b/core/java/android/net/apf/ApfCapabilities.java
index e09fa8f..17a03c7c 100644
--- a/core/java/android/net/apf/ApfCapabilities.java
+++ b/core/java/android/net/apf/ApfCapabilities.java
@@ -16,20 +16,24 @@
 
 package android.net.apf;
 
+import android.annotation.NonNull;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.content.Context;
+import android.os.Parcel;
+import android.os.Parcelable;
 
 import com.android.internal.R;
 
 /**
  * APF program support capabilities.
  *
+ * This class is immutable.
  * @hide
  */
 @SystemApi
 @TestApi
-public class ApfCapabilities {
+public final class ApfCapabilities implements Parcelable {
     /**
      * Version of APF instruction set supported for packet filtering. 0 indicates no support for
      * packet filtering using APF programs.
@@ -53,6 +57,37 @@
         this.apfPacketFormat = apfPacketFormat;
     }
 
+    private ApfCapabilities(Parcel in) {
+        apfVersionSupported = in.readInt();
+        maximumApfProgramSize = in.readInt();
+        apfPacketFormat = in.readInt();
+    }
+
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeInt(apfVersionSupported);
+        dest.writeInt(maximumApfProgramSize);
+        dest.writeInt(apfPacketFormat);
+    }
+
+    public static final Creator<ApfCapabilities> CREATOR = new Creator<ApfCapabilities>() {
+        @Override
+        public ApfCapabilities createFromParcel(Parcel in) {
+            return new ApfCapabilities(in);
+        }
+
+        @Override
+        public ApfCapabilities[] newArray(int size) {
+            return new ApfCapabilities[size];
+        }
+    };
+
     @Override
     public String toString() {
         return String.format("%s{version: %d, maxSize: %d, format: %d}", getClass().getSimpleName(),
@@ -81,14 +116,14 @@
     /**
      * @return Whether the APF Filter in the device should filter out IEEE 802.3 Frames.
      */
-    public static boolean getApfDrop8023Frames(Context context) {
+    public static boolean getApfDrop8023Frames(@NonNull Context context) {
         return context.getResources().getBoolean(R.bool.config_apfDrop802_3Frames);
     }
 
     /**
      * @return An array of blacklisted EtherType, packets with EtherTypes within it will be dropped.
      */
-    public static int[] getApfEthTypeBlackList(Context context) {
+    public static @NonNull int[] getApfEthTypeBlackList(@NonNull Context context) {
         return context.getResources().getIntArray(R.array.config_apfEthTypeBlackList);
     }
 }
diff --git a/core/java/android/net/captiveportal/CaptivePortalProbeResult.java b/core/java/android/net/captiveportal/CaptivePortalProbeResult.java
index 3930344..a1d3de2 100644
--- a/core/java/android/net/captiveportal/CaptivePortalProbeResult.java
+++ b/core/java/android/net/captiveportal/CaptivePortalProbeResult.java
@@ -16,6 +16,7 @@
 
 package android.net.captiveportal;
 
+import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
@@ -39,14 +40,18 @@
      */
     public static final int PARTIAL_CODE = -1;
 
+    @NonNull
     public static final CaptivePortalProbeResult FAILED = new CaptivePortalProbeResult(FAILED_CODE);
+    @NonNull
     public static final CaptivePortalProbeResult SUCCESS =
             new CaptivePortalProbeResult(SUCCESS_CODE);
     public static final CaptivePortalProbeResult PARTIAL =
             new CaptivePortalProbeResult(PARTIAL_CODE);
 
     private final int mHttpResponseCode;  // HTTP response code returned from Internet probe.
+    @Nullable
     public final String redirectUrl;      // Redirect destination returned from Internet probe.
+    @Nullable
     public final String detectUrl;        // URL where a 204 response code indicates
                                           // captive portal has been appeased.
     @Nullable
@@ -56,12 +61,13 @@
         this(httpResponseCode, null, null);
     }
 
-    public CaptivePortalProbeResult(int httpResponseCode, String redirectUrl, String detectUrl) {
+    public CaptivePortalProbeResult(int httpResponseCode, @Nullable String redirectUrl,
+            @Nullable String detectUrl) {
         this(httpResponseCode, redirectUrl, detectUrl, null);
     }
 
-    public CaptivePortalProbeResult(int httpResponseCode, String redirectUrl, String detectUrl,
-            CaptivePortalProbeSpec probeSpec) {
+    public CaptivePortalProbeResult(int httpResponseCode, @Nullable String redirectUrl,
+            @Nullable String detectUrl, @Nullable CaptivePortalProbeSpec probeSpec) {
         mHttpResponseCode = httpResponseCode;
         this.redirectUrl = redirectUrl;
         this.detectUrl = detectUrl;
diff --git a/core/java/android/net/captiveportal/CaptivePortalProbeSpec.java b/core/java/android/net/captiveportal/CaptivePortalProbeSpec.java
index 7ad4ecf..6c6a16c 100644
--- a/core/java/android/net/captiveportal/CaptivePortalProbeSpec.java
+++ b/core/java/android/net/captiveportal/CaptivePortalProbeSpec.java
@@ -19,6 +19,8 @@
 import static android.net.captiveportal.CaptivePortalProbeResult.PORTAL_CODE;
 import static android.net.captiveportal.CaptivePortalProbeResult.SUCCESS_CODE;
 
+import static com.android.internal.util.Preconditions.checkNotNull;
+
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.SystemApi;
@@ -48,9 +50,10 @@
     private final String mEncodedSpec;
     private final URL mUrl;
 
-    CaptivePortalProbeSpec(String encodedSpec, URL url) {
-        mEncodedSpec = encodedSpec;
-        mUrl = url;
+    CaptivePortalProbeSpec(@NonNull String encodedSpec, @NonNull URL url)
+            throws NullPointerException {
+        mEncodedSpec = checkNotNull(encodedSpec);
+        mUrl = checkNotNull(url);
     }
 
     /**
@@ -64,7 +67,7 @@
      */
     @VisibleForTesting
     @NonNull
-    public static CaptivePortalProbeSpec parseSpec(String spec) throws ParseException,
+    public static CaptivePortalProbeSpec parseSpec(@NonNull String spec) throws ParseException,
             MalformedURLException {
         if (TextUtils.isEmpty(spec)) {
             throw new ParseException("Empty probe spec", 0 /* errorOffset */);
@@ -84,7 +87,8 @@
     }
 
     @Nullable
-    private static Pattern parsePatternIfNonEmpty(String pattern, int pos) throws ParseException {
+    private static Pattern parsePatternIfNonEmpty(@Nullable String pattern, int pos)
+            throws ParseException {
         if (TextUtils.isEmpty(pattern)) {
             return null;
         }
@@ -120,8 +124,9 @@
      * <p>Each spec is separated by @@,@@ and follows the format for {@link #parseSpec(String)}.
      * <p>This method does not throw but ignores any entry that could not be parsed.
      */
+    @NonNull
     public static Collection<CaptivePortalProbeSpec> parseCaptivePortalProbeSpecs(
-            String settingsVal) {
+            @NonNull String settingsVal) {
         List<CaptivePortalProbeSpec> specs = new ArrayList<>();
         if (settingsVal != null) {
             for (String spec : TextUtils.split(settingsVal, SPEC_SEPARATOR)) {
@@ -142,12 +147,15 @@
     /**
      * Get the probe result from HTTP status and location header.
      */
+    @NonNull
     public abstract CaptivePortalProbeResult getResult(int status, @Nullable String locationHeader);
 
+    @NonNull
     public String getEncodedSpec() {
         return mEncodedSpec;
     }
 
+    @NonNull
     public URL getUrl() {
         return mUrl;
     }
diff --git a/core/java/android/net/metrics/ApfProgramEvent.java b/core/java/android/net/metrics/ApfProgramEvent.java
index 8601005..30d3b84 100644
--- a/core/java/android/net/metrics/ApfProgramEvent.java
+++ b/core/java/android/net/metrics/ApfProgramEvent.java
@@ -17,6 +17,7 @@
 package android.net.metrics;
 
 import android.annotation.IntDef;
+import android.annotation.NonNull;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.annotation.UnsupportedAppUsage;
@@ -95,7 +96,7 @@
     /**
      * Utility to create an instance of {@link ApfProgramEvent}.
      */
-    public static class Builder {
+    public static final class Builder {
         private long mLifetime;
         private long mActualLifetime;
         private int mFilteredRas;
@@ -106,6 +107,7 @@
         /**
          * Set the maximum computed lifetime of the program in seconds.
          */
+        @NonNull
         public Builder setLifetime(long lifetime) {
             mLifetime = lifetime;
             return this;
@@ -114,6 +116,7 @@
         /**
          * Set the effective program lifetime in seconds.
          */
+        @NonNull
         public Builder setActualLifetime(long lifetime) {
             mActualLifetime = lifetime;
             return this;
@@ -122,6 +125,7 @@
         /**
          * Set the number of RAs filtered by the APF program.
          */
+        @NonNull
         public Builder setFilteredRas(int filteredRas) {
             mFilteredRas = filteredRas;
             return this;
@@ -130,6 +134,7 @@
         /**
          * Set the total number of current RAs at generation time.
          */
+        @NonNull
         public Builder setCurrentRas(int currentRas) {
             mCurrentRas = currentRas;
             return this;
@@ -138,6 +143,7 @@
         /**
          * Set the length of the APF program in bytes.
          */
+        @NonNull
         public Builder setProgramLength(int programLength) {
             mProgramLength = programLength;
             return this;
@@ -146,6 +152,7 @@
         /**
          * Set the flags describing what an Apf program filters.
          */
+        @NonNull
         public Builder setFlags(boolean hasIPv4, boolean multicastFilterOn) {
             mFlags = flagsFor(hasIPv4, multicastFilterOn);
             return this;
@@ -154,6 +161,7 @@
         /**
          * Build a new {@link ApfProgramEvent}.
          */
+        @NonNull
         public ApfProgramEvent build() {
             return new ApfProgramEvent(mLifetime, mActualLifetime, mFilteredRas, mCurrentRas,
                     mProgramLength, mFlags);
diff --git a/core/java/android/net/metrics/ApfStats.java b/core/java/android/net/metrics/ApfStats.java
index 844a134..ddc788d 100644
--- a/core/java/android/net/metrics/ApfStats.java
+++ b/core/java/android/net/metrics/ApfStats.java
@@ -16,6 +16,7 @@
 
 package android.net.metrics;
 
+import android.annotation.NonNull;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.annotation.UnsupportedAppUsage;
@@ -125,7 +126,7 @@
      */
     @SystemApi
     @TestApi
-    public static class Builder {
+    public static final class Builder {
         private long mDurationMs;
         private int mReceivedRas;
         private int mMatchingRas;
@@ -140,6 +141,7 @@
         /**
          * Set the time interval in milliseconds these statistics covers.
          */
+        @NonNull
         public Builder setDurationMs(long durationMs) {
             mDurationMs = durationMs;
             return this;
@@ -148,6 +150,7 @@
         /**
          * Set the number of received RAs.
          */
+        @NonNull
         public Builder setReceivedRas(int receivedRas) {
             mReceivedRas = receivedRas;
             return this;
@@ -156,6 +159,7 @@
         /**
          * Set the number of received RAs matching a known RA.
          */
+        @NonNull
         public Builder setMatchingRas(int matchingRas) {
             mMatchingRas = matchingRas;
             return this;
@@ -164,6 +168,7 @@
         /**
          * Set the number of received RAs ignored due to the MAX_RAS limit.
          */
+        @NonNull
         public Builder setDroppedRas(int droppedRas) {
             mDroppedRas = droppedRas;
             return this;
@@ -172,6 +177,7 @@
         /**
          * Set the number of received RAs with a minimum lifetime of 0.
          */
+        @NonNull
         public Builder setZeroLifetimeRas(int zeroLifetimeRas) {
             mZeroLifetimeRas = zeroLifetimeRas;
             return this;
@@ -180,6 +186,7 @@
         /**
          * Set the number of received RAs that could not be parsed.
          */
+        @NonNull
         public Builder setParseErrors(int parseErrors) {
             mParseErrors = parseErrors;
             return this;
@@ -188,6 +195,7 @@
         /**
          * Set the number of APF program updates from receiving RAs.
          */
+        @NonNull
         public Builder setProgramUpdates(int programUpdates) {
             mProgramUpdates = programUpdates;
             return this;
@@ -196,6 +204,7 @@
         /**
          * Set the total number of APF program updates.
          */
+        @NonNull
         public Builder setProgramUpdatesAll(int programUpdatesAll) {
             mProgramUpdatesAll = programUpdatesAll;
             return this;
@@ -204,6 +213,7 @@
         /**
          * Set the number of APF program updates from allowing multicast traffic.
          */
+        @NonNull
         public Builder setProgramUpdatesAllowingMulticast(int programUpdatesAllowingMulticast) {
             mProgramUpdatesAllowingMulticast = programUpdatesAllowingMulticast;
             return this;
@@ -212,6 +222,7 @@
         /**
          * Set the maximum APF program size advertised by hardware.
          */
+        @NonNull
         public Builder setMaxProgramSize(int maxProgramSize) {
             mMaxProgramSize = maxProgramSize;
             return this;
@@ -220,6 +231,7 @@
         /**
          * Create a new {@link ApfStats}.
          */
+        @NonNull
         public ApfStats build() {
             return new ApfStats(mDurationMs, mReceivedRas, mMatchingRas, mDroppedRas,
                     mZeroLifetimeRas, mParseErrors, mProgramUpdates, mProgramUpdatesAll,
diff --git a/core/java/android/net/metrics/DhcpClientEvent.java b/core/java/android/net/metrics/DhcpClientEvent.java
index 3008115..93063cb 100644
--- a/core/java/android/net/metrics/DhcpClientEvent.java
+++ b/core/java/android/net/metrics/DhcpClientEvent.java
@@ -16,6 +16,7 @@
 
 package android.net.metrics;
 
+import android.annotation.NonNull;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.annotation.UnsupportedAppUsage;
@@ -51,13 +52,14 @@
     /**
      * Utility to create an instance of {@link ApfProgramEvent}.
      */
-    public static class Builder {
+    public static final class Builder {
         private String mMsg;
         private int mDurationMs;
 
         /**
          * Set the message of the event.
          */
+        @NonNull
         public Builder setMsg(String msg) {
             mMsg = msg;
             return this;
@@ -66,6 +68,7 @@
         /**
          * Set the duration of the event in milliseconds.
          */
+        @NonNull
         public Builder setDurationMs(int durationMs) {
             mDurationMs = durationMs;
             return this;
@@ -74,6 +77,7 @@
         /**
          * Create a new {@link DhcpClientEvent}.
          */
+        @NonNull
         public DhcpClientEvent build() {
             return new DhcpClientEvent(mMsg, mDurationMs);
         }
diff --git a/core/java/android/net/metrics/DhcpErrorEvent.java b/core/java/android/net/metrics/DhcpErrorEvent.java
index 18fde80..8beaa40 100644
--- a/core/java/android/net/metrics/DhcpErrorEvent.java
+++ b/core/java/android/net/metrics/DhcpErrorEvent.java
@@ -37,26 +37,26 @@
     public static final int DHCP_ERROR = 4;
     public static final int MISC_ERROR = 5;
 
-    public static final int L2_TOO_SHORT               = makeErrorCode(L2_ERROR, 1);
-    public static final int L2_WRONG_ETH_TYPE          = makeErrorCode(L2_ERROR, 2);
+    public static final int L2_TOO_SHORT               = (L2_ERROR << 24) | (1 << 16);
+    public static final int L2_WRONG_ETH_TYPE          = (L2_ERROR << 24) | (2 << 16);
 
-    public static final int L3_TOO_SHORT               = makeErrorCode(L3_ERROR, 1);
-    public static final int L3_NOT_IPV4                = makeErrorCode(L3_ERROR, 2);
-    public static final int L3_INVALID_IP              = makeErrorCode(L3_ERROR, 3);
+    public static final int L3_TOO_SHORT               = (L3_ERROR << 24) | (1 << 16);
+    public static final int L3_NOT_IPV4                = (L3_ERROR << 24) | (2 << 16);
+    public static final int L3_INVALID_IP              = (L3_ERROR << 24) | (3 << 16);
 
-    public static final int L4_NOT_UDP                 = makeErrorCode(L4_ERROR, 1);
-    public static final int L4_WRONG_PORT              = makeErrorCode(L4_ERROR, 2);
+    public static final int L4_NOT_UDP                 = (L4_ERROR << 24) | (1 << 16);
+    public static final int L4_WRONG_PORT              = (L4_ERROR << 24) | (2 << 16);
 
-    public static final int BOOTP_TOO_SHORT            = makeErrorCode(DHCP_ERROR, 1);
-    public static final int DHCP_BAD_MAGIC_COOKIE      = makeErrorCode(DHCP_ERROR, 2);
-    public static final int DHCP_INVALID_OPTION_LENGTH = makeErrorCode(DHCP_ERROR, 3);
-    public static final int DHCP_NO_MSG_TYPE           = makeErrorCode(DHCP_ERROR, 4);
-    public static final int DHCP_UNKNOWN_MSG_TYPE      = makeErrorCode(DHCP_ERROR, 5);
-    public static final int DHCP_NO_COOKIE             = makeErrorCode(DHCP_ERROR, 6);
+    public static final int BOOTP_TOO_SHORT            = (DHCP_ERROR << 24) | (1 << 16);
+    public static final int DHCP_BAD_MAGIC_COOKIE      = (DHCP_ERROR << 24) | (2 << 16);
+    public static final int DHCP_INVALID_OPTION_LENGTH = (DHCP_ERROR << 24) | (3 << 16);
+    public static final int DHCP_NO_MSG_TYPE           = (DHCP_ERROR << 24) | (4 << 16);
+    public static final int DHCP_UNKNOWN_MSG_TYPE      = (DHCP_ERROR << 24) | (5 << 16);
+    public static final int DHCP_NO_COOKIE             = (DHCP_ERROR << 24) | (6 << 16);
 
-    public static final int BUFFER_UNDERFLOW           = makeErrorCode(MISC_ERROR, 1);
-    public static final int RECEIVE_ERROR              = makeErrorCode(MISC_ERROR, 2);
-    public static final int PARSING_ERROR              = makeErrorCode(MISC_ERROR, 3);
+    public static final int BUFFER_UNDERFLOW           = (MISC_ERROR << 24) | (1 << 16);
+    public static final int RECEIVE_ERROR              = (MISC_ERROR << 24) | (2 << 16);
+    public static final int PARSING_ERROR              = (MISC_ERROR << 24) | (3 << 16);
 
     // error code byte format (MSB to LSB):
     // byte 0: error type
@@ -102,10 +102,6 @@
         return (0xFFFF0000 & errorCode) | (0xFF & option);
     }
 
-    private static int makeErrorCode(int type, int subtype) {
-        return (type << 24) | ((0xFF & subtype) << 16);
-    }
-
     @Override
     public String toString() {
         return String.format("DhcpErrorEvent(%s)", Decoder.constants.get(errorCode));
diff --git a/core/java/android/net/metrics/IpConnectivityLog.java b/core/java/android/net/metrics/IpConnectivityLog.java
index 5b5a235..680c015 100644
--- a/core/java/android/net/metrics/IpConnectivityLog.java
+++ b/core/java/android/net/metrics/IpConnectivityLog.java
@@ -16,6 +16,7 @@
 
 package android.net.metrics;
 
+import android.annotation.NonNull;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.net.ConnectivityMetricsEvent;
@@ -41,7 +42,7 @@
 
     /** @hide */
     public static final String SERVICE_NAME = "connmetrics";
-
+    @NonNull
     private IIpConnectivityMetrics mService;
 
     /**
@@ -57,7 +58,7 @@
 
     /** @hide */
     @VisibleForTesting
-    public IpConnectivityLog(IIpConnectivityMetrics service) {
+    public IpConnectivityLog(@NonNull IIpConnectivityMetrics service) {
         mService = service;
     }
 
@@ -83,7 +84,7 @@
      * @return true if the event was successfully logged.
      * @hide
      */
-    public boolean log(ConnectivityMetricsEvent ev) {
+    public boolean log(@NonNull ConnectivityMetricsEvent ev) {
         if (!checkLoggerService()) {
             if (DBG) {
                 Log.d(TAG, SERVICE_NAME + " service was not ready");
@@ -109,7 +110,7 @@
      * @param data is a Parcelable instance representing the event.
      * @return true if the event was successfully logged.
      */
-    public boolean log(long timestamp, Event data) {
+    public boolean log(long timestamp, @NonNull Event data) {
         ConnectivityMetricsEvent ev = makeEv(data);
         ev.timestamp = timestamp;
         return log(ev);
@@ -121,7 +122,7 @@
      * @param data is a Parcelable instance representing the event.
      * @return true if the event was successfully logged.
      */
-    public boolean log(String ifname, Event data) {
+    public boolean log(@NonNull String ifname, @NonNull Event data) {
         ConnectivityMetricsEvent ev = makeEv(data);
         ev.ifname = ifname;
         return log(ev);
@@ -135,7 +136,7 @@
      * @param data is a Parcelable instance representing the event.
      * @return true if the event was successfully logged.
      */
-    public boolean log(Network network, int[] transports, Event data) {
+    public boolean log(@NonNull Network network, @NonNull int[] transports, @NonNull Event data) {
         return log(network.netId, transports, data);
     }
 
@@ -147,7 +148,7 @@
      * @param data is a Parcelable instance representing the event.
      * @return true if the event was successfully logged.
      */
-    public boolean log(int netid, int[] transports, Event data) {
+    public boolean log(int netid, @NonNull int[] transports, @NonNull Event data) {
         ConnectivityMetricsEvent ev = makeEv(data);
         ev.netId = netid;
         ev.transports = BitUtils.packBits(transports);
@@ -159,7 +160,7 @@
      * @param data is a Parcelable instance representing the event.
      * @return true if the event was successfully logged.
      */
-    public boolean log(Event data) {
+    public boolean log(@NonNull Event data) {
         return log(makeEv(data));
     }
 
diff --git a/core/java/android/net/metrics/RaEvent.java b/core/java/android/net/metrics/RaEvent.java
index 04a2e6e..d16a104 100644
--- a/core/java/android/net/metrics/RaEvent.java
+++ b/core/java/android/net/metrics/RaEvent.java
@@ -16,6 +16,7 @@
 
 package android.net.metrics;
 
+import android.annotation.NonNull;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.os.Parcel;
@@ -107,7 +108,7 @@
         }
     };
 
-    public static class Builder {
+    public static final class Builder {
 
         long routerLifetime          = NO_LIFETIME;
         long prefixValidLifetime     = NO_LIFETIME;
@@ -119,37 +120,37 @@
         public Builder() {
         }
 
-        public RaEvent build() {
+        public @NonNull RaEvent build() {
             return new RaEvent(routerLifetime, prefixValidLifetime, prefixPreferredLifetime,
                     routeInfoLifetime, rdnssLifetime, dnsslLifetime);
         }
 
-        public Builder updateRouterLifetime(long lifetime) {
+        public @NonNull Builder updateRouterLifetime(long lifetime) {
             routerLifetime = updateLifetime(routerLifetime, lifetime);
             return this;
         }
 
-        public Builder updatePrefixValidLifetime(long lifetime) {
+        public @NonNull Builder updatePrefixValidLifetime(long lifetime) {
             prefixValidLifetime = updateLifetime(prefixValidLifetime, lifetime);
             return this;
         }
 
-        public Builder updatePrefixPreferredLifetime(long lifetime) {
+        public @NonNull Builder updatePrefixPreferredLifetime(long lifetime) {
             prefixPreferredLifetime = updateLifetime(prefixPreferredLifetime, lifetime);
             return this;
         }
 
-        public Builder updateRouteInfoLifetime(long lifetime) {
+        public @NonNull Builder updateRouteInfoLifetime(long lifetime) {
             routeInfoLifetime = updateLifetime(routeInfoLifetime, lifetime);
             return this;
         }
 
-        public Builder updateRdnssLifetime(long lifetime) {
+        public @NonNull Builder updateRdnssLifetime(long lifetime) {
             rdnssLifetime = updateLifetime(rdnssLifetime, lifetime);
             return this;
         }
 
-        public Builder updateDnsslLifetime(long lifetime) {
+        public @NonNull Builder updateDnsslLifetime(long lifetime) {
             dnsslLifetime = updateLifetime(dnsslLifetime, lifetime);
             return this;
         }
diff --git a/core/java/android/net/metrics/ValidationProbeEvent.java b/core/java/android/net/metrics/ValidationProbeEvent.java
index a43dc60..9eb87ef 100644
--- a/core/java/android/net/metrics/ValidationProbeEvent.java
+++ b/core/java/android/net/metrics/ValidationProbeEvent.java
@@ -17,6 +17,7 @@
 package android.net.metrics;
 
 import android.annotation.IntDef;
+import android.annotation.NonNull;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.os.Parcel;
@@ -81,7 +82,7 @@
     /**
      * Utility to create an instance of {@link ValidationProbeEvent}.
      */
-    public static class Builder {
+    public static final class Builder {
         private long mDurationMs;
         private int mProbeType;
         private int mReturnCode;
@@ -89,6 +90,7 @@
         /**
          * Set the duration of the probe in milliseconds.
          */
+        @NonNull
         public Builder setDurationMs(long durationMs) {
             mDurationMs = durationMs;
             return this;
@@ -97,6 +99,7 @@
         /**
          * Set the probe type based on whether it was the first validation.
          */
+        @NonNull
         public Builder setProbeType(int probeType, boolean firstValidation) {
             mProbeType = makeProbeType(probeType, firstValidation);
             return this;
@@ -105,6 +108,7 @@
         /**
          * Set the return code of the probe.
          */
+        @NonNull
         public Builder setReturnCode(int returnCode) {
             mReturnCode = returnCode;
             return this;
@@ -113,6 +117,7 @@
         /**
          * Create a new {@link ValidationProbeEvent}.
          */
+        @NonNull
         public ValidationProbeEvent build() {
             return new ValidationProbeEvent(mDurationMs, mProbeType, mReturnCode);
         }
diff --git a/core/java/android/os/INetworkManagementService.aidl b/core/java/android/os/INetworkManagementService.aidl
index f62a999..6536fc9 100644
--- a/core/java/android/os/INetworkManagementService.aidl
+++ b/core/java/android/os/INetworkManagementService.aidl
@@ -242,27 +242,6 @@
     void tetherLimitReached(ITetheringStatsProvider provider);
 
     /**
-     ** PPPD
-     **/
-
-    /**
-     * Returns the list of currently known TTY devices on the system
-     */
-    String[] listTtys();
-
-    /**
-     * Attaches a PPP server daemon to the specified TTY with the specified
-     * local/remote addresses.
-     */
-    void attachPppd(String tty, String localAddr, String remoteAddr, String dns1Addr,
-            String dns2Addr);
-
-    /**
-     * Detaches a PPP server daemon from the specified TTY.
-     */
-    void detachPppd(String tty);
-
-    /**
      ** DATA USAGE RELATED
      **/
 
diff --git a/core/java/android/os/ServiceSpecificException.java b/core/java/android/os/ServiceSpecificException.java
index 3b0f26ae..03d5d3e 100644
--- a/core/java/android/os/ServiceSpecificException.java
+++ b/core/java/android/os/ServiceSpecificException.java
@@ -15,6 +15,7 @@
  */
 package android.os;
 
+import android.annotation.Nullable;
 import android.annotation.SystemApi;
 
 /**
@@ -34,7 +35,7 @@
 public class ServiceSpecificException extends RuntimeException {
     public final int errorCode;
 
-    public ServiceSpecificException(int errorCode, String message) {
+    public ServiceSpecificException(int errorCode, @Nullable String message) {
         super(message);
         this.errorCode = errorCode;
     }
diff --git a/core/java/android/service/euicc/EuiccService.java b/core/java/android/service/euicc/EuiccService.java
index 4f321dc..4564d3a 100644
--- a/core/java/android/service/euicc/EuiccService.java
+++ b/core/java/android/service/euicc/EuiccService.java
@@ -106,15 +106,27 @@
     public static final String ACTION_PROVISION_EMBEDDED_SUBSCRIPTION =
             "android.service.euicc.action.PROVISION_EMBEDDED_SUBSCRIPTION";
 
-    /** @see android.telephony.euicc.EuiccManager#ACTION_TOGGLE_SUBSCRIPTION_PRIVILEGED */
+    /**
+     * @see android.telephony.euicc.EuiccManager#ACTION_TOGGLE_SUBSCRIPTION_PRIVILEGED. This is
+     * a protected intent that can only be sent by the system, and requires the
+     * {@link android.Manifest.permission#BIND_EUICC_SERVICE} permission.
+     */
     public static final String ACTION_TOGGLE_SUBSCRIPTION_PRIVILEGED =
             "android.service.euicc.action.TOGGLE_SUBSCRIPTION_PRIVILEGED";
 
-    /** @see android.telephony.euicc.EuiccManager#ACTION_DELETE_SUBSCRIPTION_PRIVILEGED */
+    /**
+     * @see android.telephony.euicc.EuiccManager#ACTION_DELETE_SUBSCRIPTION_PRIVILEGED. This is
+     * a protected intent that can only be sent by the system, and requires the
+     * {@link android.Manifest.permission#BIND_EUICC_SERVICE} permission.
+     */
     public static final String ACTION_DELETE_SUBSCRIPTION_PRIVILEGED =
             "android.service.euicc.action.DELETE_SUBSCRIPTION_PRIVILEGED";
 
-    /** @see android.telephony.euicc.EuiccManager#ACTION_RENAME_SUBSCRIPTION_PRIVILEGED */
+    /**
+     * @see android.telephony.euicc.EuiccManager#ACTION_RENAME_SUBSCRIPTION_PRIVILEGED. This is
+     * a protected intent that can only be sent by the system, and requires the
+     * {@link android.Manifest.permission#BIND_EUICC_SERVICE} permission.
+     */
     public static final String ACTION_RENAME_SUBSCRIPTION_PRIVILEGED =
             "android.service.euicc.action.RENAME_SUBSCRIPTION_PRIVILEGED";
 
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
index e132abd..c630351 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -125,6 +125,12 @@
 
     private static boolean sPreloadComplete;
 
+    /**
+     * Cached classloader to use for the system server. Will only be populated in the system
+     * server process.
+     */
+    private static ClassLoader sCachedSystemServerClassLoader = null;
+
     static void preload(TimingsTraceLog bootTimingsTraceLog) {
         Log.d(TAG, "begin preload");
         bootTimingsTraceLog.traceBegin("BeginPreload");
@@ -446,7 +452,13 @@
 
         final String systemServerClasspath = Os.getenv("SYSTEMSERVERCLASSPATH");
         if (systemServerClasspath != null) {
-            performSystemServerDexOpt(systemServerClasspath);
+            if (performSystemServerDexOpt(systemServerClasspath)) {
+                // Throw away the cached classloader. If we compiled here, the classloader would
+                // not have had AoT-ed artifacts.
+                // Note: This only works in a very special environment where selinux enforcement is
+                // disabled, e.g., Mac builds.
+                sCachedSystemServerClassLoader = null;
+            }
             // Capturing profiles is only supported for debug or eng builds since selinux normally
             // prevents it.
             boolean profileSystemServer = SystemProperties.getBoolean(
@@ -479,10 +491,9 @@
 
             throw new IllegalStateException("Unexpected return from WrapperInit.execApplication");
         } else {
-            ClassLoader cl = null;
-            if (systemServerClasspath != null) {
-                cl = createPathClassLoader(systemServerClasspath, parsedArgs.mTargetSdkVersion);
-
+            createSystemServerClassLoader();
+            ClassLoader cl = sCachedSystemServerClassLoader;
+            if (cl != null) {
                 Thread.currentThread().setContextClassLoader(cl);
             }
 
@@ -497,6 +508,24 @@
     }
 
     /**
+     * Create the classloader for the system server and store it in
+     * {@link sCachedSystemServerClassLoader}. This function may be called through JNI in
+     * system server startup, when the runtime is in a critically low state. Do not do
+     * extended computation etc here.
+     */
+    private static void createSystemServerClassLoader() {
+        if (sCachedSystemServerClassLoader != null) {
+            return;
+        }
+        final String systemServerClasspath = Os.getenv("SYSTEMSERVERCLASSPATH");
+        // TODO: Should we run optimization here?
+        if (systemServerClasspath != null) {
+            sCachedSystemServerClassLoader = createPathClassLoader(systemServerClasspath,
+                    VMRuntime.SDK_VERSION_CUR_DEVELOPMENT);
+        }
+    }
+
+    /**
      * Note that preparing the profiles for system server does not require special selinux
      * permissions. From the installer perspective the system server is a regular package which can
      * capture profile information.
@@ -560,15 +589,16 @@
 
     /**
      * Performs dex-opt on the elements of {@code classPath}, if needed. We choose the instruction
-     * set of the current runtime.
+     * set of the current runtime. If something was compiled, return true.
      */
-    private static void performSystemServerDexOpt(String classPath) {
+    private static boolean performSystemServerDexOpt(String classPath) {
         final String[] classPathElements = classPath.split(":");
         final IInstalld installd = IInstalld.Stub
                 .asInterface(ServiceManager.getService("installd"));
         final String instructionSet = VMRuntime.getRuntime().vmInstructionSet();
 
         String classPathForElement = "";
+        boolean compiledSomething = false;
         for (String classPathElement : classPathElements) {
             // System server is fully AOTed and never profiled
             // for profile guided compilation.
@@ -610,6 +640,7 @@
                             uuid, classLoaderContext, seInfo, false /* downgrade */,
                             targetSdkVersion, /*profileName*/ null, /*dexMetadataPath*/ null,
                             "server-dexopt");
+                    compiledSomething = true;
                 } catch (RemoteException | ServiceSpecificException e) {
                     // Ignore (but log), we need this on the classpath for fallback mode.
                     Log.w(TAG, "Failed compiling classpath element for system server: "
@@ -620,6 +651,8 @@
             classPathForElement = encodeSystemServerClassPath(
                     classPathForElement, classPathElement);
         }
+
+        return compiledSomething;
     }
 
     /**
diff --git a/core/jni/AndroidRuntime.cpp b/core/jni/AndroidRuntime.cpp
index 388285a..79850d0 100644
--- a/core/jni/AndroidRuntime.cpp
+++ b/core/jni/AndroidRuntime.cpp
@@ -1112,6 +1112,12 @@
         return;
     }
 
+    const char* tzdataRootDir = getenv("ANDROID_TZDATA_ROOT");
+    if (tzdataRootDir == NULL) {
+        LOG_FATAL("No tz data directory specified with ANDROID_TZDATA_ROOT environment variable.");
+        return;
+    }
+
     //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
     //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
 
diff --git a/core/jni/com_android_internal_os_Zygote.cpp b/core/jni/com_android_internal_os_Zygote.cpp
index 8216b61..d8c68b4 100644
--- a/core/jni/com_android_internal_os_Zygote.cpp
+++ b/core/jni/com_android_internal_os_Zygote.cpp
@@ -108,11 +108,15 @@
 
 static pid_t gSystemServerPid = 0;
 
-static const char kZygoteClassName[] = "com/android/internal/os/Zygote";
+static constexpr const char* kZygoteClassName = "com/android/internal/os/Zygote";
 static jclass gZygoteClass;
 static jmethodID gCallPostForkSystemServerHooks;
 static jmethodID gCallPostForkChildHooks;
 
+static constexpr const char* kZygoteInitClassName = "com/android/internal/os/ZygoteInit";
+static jclass gZygoteInitClass;
+static jmethodID gCreateSystemServerClassLoader;
+
 static bool g_is_security_enforced = true;
 
 /**
@@ -1047,6 +1051,15 @@
       fail_fn("Error calling post fork system server hooks.");
     }
 
+    // Prefetch the classloader for the system server. This is done early to
+    // allow a tie-down of the proper system server selinux domain.
+    env->CallStaticVoidMethod(gZygoteInitClass, gCreateSystemServerClassLoader);
+    if (env->ExceptionCheck()) {
+      // Be robust here. The Java code will attempt to create the classloader
+      // at a later point (but may not have rights to use AoT artifacts).
+      env->ExceptionClear();
+    }
+
     // TODO(oth): Remove hardcoded label here (b/117874058).
     static const char* kSystemServerLabel = "u:r:system_server:s0";
     if (selinux_android_setcon(kSystemServerLabel) != 0) {
@@ -1566,6 +1579,13 @@
   gCallPostForkChildHooks = GetStaticMethodIDOrDie(env, gZygoteClass, "callPostForkChildHooks",
                                                    "(IZZLjava/lang/String;)V");
 
-  return RegisterMethodsOrDie(env, "com/android/internal/os/Zygote", gMethods, NELEM(gMethods));
+  gZygoteInitClass = MakeGlobalRefOrDie(env, FindClassOrDie(env, kZygoteInitClassName));
+  gCreateSystemServerClassLoader = GetStaticMethodIDOrDie(env, gZygoteInitClass,
+                                                          "createSystemServerClassLoader",
+                                                          "()V");
+
+  RegisterMethodsOrDie(env, "com/android/internal/os/Zygote", gMethods, NELEM(gMethods));
+
+  return JNI_OK;
 }
 }  // namespace android
diff --git a/packages/CaptivePortalLogin/src/com/android/captiveportallogin/CaptivePortalLoginActivity.java b/packages/CaptivePortalLogin/src/com/android/captiveportallogin/CaptivePortalLoginActivity.java
index 2c9b6eb..9488afb 100644
--- a/packages/CaptivePortalLogin/src/com/android/captiveportallogin/CaptivePortalLoginActivity.java
+++ b/packages/CaptivePortalLogin/src/com/android/captiveportallogin/CaptivePortalLoginActivity.java
@@ -53,6 +53,7 @@
 import android.webkit.CookieManager;
 import android.webkit.SslErrorHandler;
 import android.webkit.WebChromeClient;
+import android.webkit.WebResourceRequest;
 import android.webkit.WebSettings;
 import android.webkit.WebView;
 import android.webkit.WebViewClient;
@@ -408,8 +409,7 @@
                     TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 1,
                     getResources().getDisplayMetrics());
         private int mPagesLoaded;
-        // the host of the page that this webview is currently loading. Can be null when undefined.
-        private String mHostname;
+        private String mMainFrameUrl;
 
         // If we haven't finished cleaning up the history, don't allow going back.
         public boolean allowBack() {
@@ -435,7 +435,6 @@
             }
             final URL url = makeURL(urlString);
             Log.d(TAG, "onPageStarted: " + sanitizeURL(url));
-            mHostname = host(url);
             // For internally generated pages, leave URL bar listing prior URL as this is the URL
             // the page refers to.
             if (!urlString.startsWith(INTERNAL_ASSETS)) {
@@ -479,17 +478,28 @@
             return Integer.toString((int)dp) + "px";
         }
 
+        // Check if webview is trying to load the main frame and record its url.
+        @Override
+        public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
+            if (request.isForMainFrame()) {
+                mMainFrameUrl = request.getUrl().toString();
+            }
+            return false;
+        }
+
         // A web page consisting of a large broken lock icon to indicate SSL failure.
 
         @Override
         public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
-            final URL url = makeURL(error.getUrl());
-            final String host = host(url);
+            final URL errorUrl = makeURL(error.getUrl());
+            final URL mainFrameUrl = makeURL(mMainFrameUrl);
             Log.d(TAG, String.format("SSL error: %s, url: %s, certificate: %s",
-                    sslErrorName(error), sanitizeURL(url), error.getCertificate()));
-            if (url == null || !Objects.equals(host, mHostname)) {
-                // Ignore ssl errors for resources coming from a different hostname than the page
-                // that we are currently loading, and only cancel the request.
+                    sslErrorName(error), sanitizeURL(errorUrl), error.getCertificate()));
+            if (errorUrl == null
+                    // Ignore SSL errors from resources by comparing the main frame url with SSL
+                    // error url.
+                    || !errorUrl.equals(mainFrameUrl)) {
+                Log.d(TAG, "onReceivedSslError: mMainFrameUrl = " + mMainFrameUrl);
                 handler.cancel();
                 return;
             }
diff --git a/packages/NetworkStack/jarjar-rules-shared.txt b/packages/NetworkStack/jarjar-rules-shared.txt
index a8c712a..7346b1a 100644
--- a/packages/NetworkStack/jarjar-rules-shared.txt
+++ b/packages/NetworkStack/jarjar-rules-shared.txt
@@ -8,12 +8,3 @@
 rule android.net.DhcpResultsParcelable* @0
 rule android.net.DhcpResults* android.net.networkstack.DhcpResults@1
 rule android.net.LocalLog* android.net.networkstack.LocalLog@1
-
-# TODO: remove from framework dependencies, then remove here
-rule android.net.InterfaceConfigurationParcel* android.net.networkstack.InterfaceConfigurationParcel@1
-rule android.net.TetherStatsParcel* android.net.networkstack.TetherStatsParcel@1
-
-# Used by UidRange, which is used by framework classes such as NetworkCapabilities.
-rule android.net.UidRangeParcel* android.net.networkstack.UidRangeParcel@1
-# TODO: move TcpKeepalivePacketData to services.net and delete
-rule android.net.TcpKeepalivePacketDataParcelable* android.net.networkstack.TcpKeepalivePacketDataParcelable@1
\ No newline at end of file
diff --git a/packages/NetworkStack/src/android/net/dhcp/DhcpServingParams.java b/packages/NetworkStack/src/android/net/dhcp/DhcpServingParams.java
index 3cd2aa4..230b693 100644
--- a/packages/NetworkStack/src/android/net/dhcp/DhcpServingParams.java
+++ b/packages/NetworkStack/src/android/net/dhcp/DhcpServingParams.java
@@ -329,7 +329,7 @@
             if (mLinkMtu != MTU_UNSET && (mLinkMtu < IPV4_MIN_MTU || mLinkMtu > IPV4_MAX_MTU)) {
                 throw new InvalidParameterException("Invalid link MTU: " + mLinkMtu);
             }
-            if (!mServerAddr.isIPv4()) {
+            if (!mServerAddr.isIpv4()) {
                 throw new InvalidParameterException("serverAddr must be IPv4");
             }
             if (mServerAddr.getPrefixLength() < MIN_PREFIX_LENGTH
diff --git a/packages/NetworkStack/src/android/net/ip/IpClient.java b/packages/NetworkStack/src/android/net/ip/IpClient.java
index b68fe23..61dc966 100644
--- a/packages/NetworkStack/src/android/net/ip/IpClient.java
+++ b/packages/NetworkStack/src/android/net/ip/IpClient.java
@@ -834,7 +834,7 @@
     static boolean isProvisioned(LinkProperties lp, InitialConfiguration config) {
         // For historical reasons, we should connect even if all we have is
         // an IPv4 address and nothing else.
-        if (lp.hasIPv4Address() || lp.isProvisioned()) {
+        if (lp.hasIpv4Address() || lp.isProvisioned()) {
             return true;
         }
         if (config == null) {
@@ -878,9 +878,9 @@
             delta = PROV_CHANGE_LOST_PROVISIONING;
         }
 
-        final boolean lostIPv6 = oldLp.isIPv6Provisioned() && !newLp.isIPv6Provisioned();
-        final boolean lostIPv4Address = oldLp.hasIPv4Address() && !newLp.hasIPv4Address();
-        final boolean lostIPv6Router = oldLp.hasIPv6DefaultRoute() && !newLp.hasIPv6DefaultRoute();
+        final boolean lostIPv6 = oldLp.isIpv6Provisioned() && !newLp.isIpv6Provisioned();
+        final boolean lostIPv4Address = oldLp.hasIpv4Address() && !newLp.hasIpv4Address();
+        final boolean lostIPv6Router = oldLp.hasIpv6DefaultRoute() && !newLp.hasIpv6DefaultRoute();
 
         // If bad wifi avoidance is disabled, then ignore IPv6 loss of
         // provisioning. Otherwise, when a hotspot that loses Internet
@@ -920,7 +920,7 @@
         // If the previous link properties had a global IPv6 address and an
         // IPv6 default route then also consider the loss of that default route
         // to be a loss of provisioning. See b/27962810.
-        if (oldLp.hasGlobalIPv6Address() && (lostIPv6Router && !ignoreIPv6ProvisioningLoss)) {
+        if (oldLp.hasGlobalIpv6Address() && (lostIPv6Router && !ignoreIPv6ProvisioningLoss)) {
             delta = PROV_CHANGE_LOST_PROVISIONING;
         }
 
@@ -1156,7 +1156,7 @@
 
     private boolean applyInitialConfig(InitialConfiguration config) {
         // TODO: also support specifying a static IPv4 configuration in InitialConfiguration.
-        for (LinkAddress addr : findAll(config.ipAddresses, LinkAddress::isIPv6)) {
+        for (LinkAddress addr : findAll(config.ipAddresses, LinkAddress::isIpv6)) {
             if (!mInterfaceCtrl.addAddress(addr)) return false;
         }
 
@@ -1374,7 +1374,7 @@
         }
 
         private boolean readyToProceed() {
-            return (!mLinkProperties.hasIPv4Address() && !mLinkProperties.hasGlobalIPv6Address());
+            return (!mLinkProperties.hasIpv4Address() && !mLinkProperties.hasGlobalIpv6Address());
         }
     }
 
diff --git a/packages/NetworkStack/src/android/net/ip/IpReachabilityMonitor.java b/packages/NetworkStack/src/android/net/ip/IpReachabilityMonitor.java
index 76a0338..e73cba6 100644
--- a/packages/NetworkStack/src/android/net/ip/IpReachabilityMonitor.java
+++ b/packages/NetworkStack/src/android/net/ip/IpReachabilityMonitor.java
@@ -316,8 +316,8 @@
         }
 
         final boolean lostProvisioning =
-                (mLinkProperties.isIPv4Provisioned() && !whatIfLp.isIPv4Provisioned())
-                || (mLinkProperties.isIPv6Provisioned() && !whatIfLp.isIPv6Provisioned());
+                (mLinkProperties.isIpv4Provisioned() && !whatIfLp.isIpv4Provisioned())
+                || (mLinkProperties.isIpv6Provisioned() && !whatIfLp.isIpv6Provisioned());
 
         if (lostProvisioning) {
             final String logMsg = "FAILURE: LOST_PROVISIONING, " + event;
diff --git a/packages/NetworkStack/src/com/android/server/NetworkStackService.java b/packages/NetworkStack/src/com/android/server/NetworkStackService.java
index 335d951..19e9108 100644
--- a/packages/NetworkStack/src/com/android/server/NetworkStackService.java
+++ b/packages/NetworkStack/src/com/android/server/NetworkStackService.java
@@ -277,9 +277,9 @@
         }
 
         @Override
-        public void notifyAcceptPartialConnectivity() {
+        public void setAcceptPartialConnectivity() {
             checkNetworkStackCallingPermission();
-            mNm.notifyAcceptPartialConnectivity();
+            mNm.setAcceptPartialConnectivity();
         }
 
         @Override
diff --git a/packages/NetworkStack/src/com/android/server/connectivity/NetworkMonitor.java b/packages/NetworkStack/src/com/android/server/connectivity/NetworkMonitor.java
index bcfc412..48d9d7b 100644
--- a/packages/NetworkStack/src/com/android/server/connectivity/NetworkMonitor.java
+++ b/packages/NetworkStack/src/com/android/server/connectivity/NetworkMonitor.java
@@ -72,7 +72,7 @@
 import android.provider.Settings;
 import android.telephony.AccessNetworkConstants;
 import android.telephony.CellSignalStrength;
-import android.telephony.NetworkRegistrationState;
+import android.telephony.NetworkRegistrationInfo;
 import android.telephony.ServiceState;
 import android.telephony.SignalStrength;
 import android.telephony.TelephonyManager;
@@ -319,7 +319,8 @@
     private final DnsStallDetector mDnsStallDetector;
     private long mLastProbeTime;
     // Set to true if data stall is suspected and reset to false after metrics are sent to statsd.
-    private boolean mCollectDataStallMetrics = false;
+    private boolean mCollectDataStallMetrics;
+    private boolean mAcceptPartialConnectivity;
 
     public NetworkMonitor(Context context, INetworkMonitorCallbacks cb, Network network,
             SharedLog validationLog) {
@@ -386,10 +387,11 @@
     }
 
     /**
-     * ConnectivityService notifies NetworkMonitor that the user accepts partial connectivity and
-     * NetworkMonitor should ignore the https probe.
+     * ConnectivityService notifies NetworkMonitor that the user already accepted partial
+     * connectivity previously, so NetworkMonitor can validate the network even if it has partial
+     * connectivity.
      */
-    public void notifyAcceptPartialConnectivity() {
+    public void setAcceptPartialConnectivity() {
         sendMessage(EVENT_ACCEPT_PARTIAL_CONNECTIVITY);
     }
 
@@ -651,9 +653,11 @@
                 case EVENT_DNS_NOTIFICATION:
                     mDnsStallDetector.accumulateConsecutiveDnsTimeoutCount(message.arg1);
                     break;
+                // Set mAcceptPartialConnectivity to true and if network start evaluating or
+                // re-evaluating and get the result of partial connectivity, ProbingState will
+                // disable HTTPS probe and transition to EvaluatingPrivateDnsState.
                 case EVENT_ACCEPT_PARTIAL_CONNECTIVITY:
-                    mUseHttps = false;
-                    transitionTo(mEvaluatingPrivateDnsState);
+                    mAcceptPartialConnectivity = true;
                     break;
                 default:
                     break;
@@ -849,6 +853,14 @@
                     // ignore any re-evaluation requests. After, restart the
                     // evaluation process via EvaluatingState#enter.
                     return (mEvaluateAttempts < IGNORE_REEVALUATE_ATTEMPTS) ? HANDLED : NOT_HANDLED;
+                // Disable HTTPS probe and transition to EvaluatingPrivateDnsState because:
+                // 1. Network is connected and finish the network validation.
+                // 2. NetworkMonitor detects network is partial connectivity and user accepts it.
+                case EVENT_ACCEPT_PARTIAL_CONNECTIVITY:
+                    mAcceptPartialConnectivity = true;
+                    mUseHttps = false;
+                    transitionTo(mEvaluatingPrivateDnsState);
+                    return HANDLED;
                 default:
                     return NOT_HANDLED;
             }
@@ -1081,7 +1093,12 @@
                         logNetworkEvent(NetworkEvent.NETWORK_PARTIAL_CONNECTIVITY);
                         notifyNetworkTested(NETWORK_TEST_RESULT_PARTIAL_CONNECTIVITY,
                                 probeResult.redirectUrl);
-                        transitionTo(mWaitingForNextProbeState);
+                        if (mAcceptPartialConnectivity) {
+                            mUseHttps = false;
+                            transitionTo(mEvaluatingPrivateDnsState);
+                        } else {
+                            transitionTo(mWaitingForNextProbeState);
+                        }
                     } else {
                         logNetworkEvent(NetworkEvent.NETWORK_VALIDATION_FAILED);
                         notifyNetworkTested(NETWORK_TEST_RESULT_INVALID, probeResult.redirectUrl);
@@ -1615,8 +1632,8 @@
                 return;
             }
             // See if the data sub is registered for PS services on cell.
-            final NetworkRegistrationState nrs = dataSs.getNetworkRegistrationState(
-                    NetworkRegistrationState.DOMAIN_PS,
+            final NetworkRegistrationInfo nrs = dataSs.getNetworkRegistrationInfo(
+                    NetworkRegistrationInfo.DOMAIN_PS,
                     AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
             latencyBroadcast.putExtra(
                     NetworkMonitorUtils.EXTRA_CELL_ID,
diff --git a/packages/NetworkStack/tests/src/com/android/server/connectivity/NetworkMonitorTest.java b/packages/NetworkStack/tests/src/com/android/server/connectivity/NetworkMonitorTest.java
index d93aef2..d732c4e 100644
--- a/packages/NetworkStack/tests/src/com/android/server/connectivity/NetworkMonitorTest.java
+++ b/packages/NetworkStack/tests/src/com/android/server/connectivity/NetworkMonitorTest.java
@@ -583,7 +583,7 @@
         verify(mCallbacks, timeout(HANDLER_TIMEOUT_MS).times(1))
                 .notifyNetworkTested(NETWORK_TEST_RESULT_PARTIAL_CONNECTIVITY, null);
 
-        nm.notifyAcceptPartialConnectivity();
+        nm.setAcceptPartialConnectivity();
         verify(mCallbacks, timeout(HANDLER_TIMEOUT_MS).times(1))
                 .notifyNetworkTested(NETWORK_TEST_RESULT_VALID, null);
     }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/MobileSignalController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/MobileSignalController.java
index 9734918..2f7e3b18 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/MobileSignalController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/MobileSignalController.java
@@ -22,7 +22,7 @@
 import android.os.Handler;
 import android.os.Looper;
 import android.provider.Settings.Global;
-import android.telephony.NetworkRegistrationState;
+import android.telephony.NetworkRegistrationInfo;
 import android.telephony.PhoneStateListener;
 import android.telephony.ServiceState;
 import android.telephony.SignalStrength;
@@ -494,8 +494,8 @@
     private MobileIconGroup getNr5GIconGroup() {
         if (mServiceState == null) return null;
 
-        int nrStatus = mServiceState.getNrStatus();
-        if (nrStatus == NetworkRegistrationState.NR_STATUS_CONNECTED) {
+        int nrState = mServiceState.getNrState();
+        if (nrState == NetworkRegistrationInfo.NR_STATE_CONNECTED) {
             // Check if the NR 5G is using millimeter wave and the icon is config.
             if (mServiceState.getNrFrequencyRange() == ServiceState.FREQUENCY_RANGE_MMWAVE) {
                 if (mConfig.nr5GIconMap.containsKey(Config.NR_CONNECTED_MMWAVE)) {
@@ -508,11 +508,11 @@
             if (mConfig.nr5GIconMap.containsKey(Config.NR_CONNECTED)) {
                 return mConfig.nr5GIconMap.get(Config.NR_CONNECTED);
             }
-        } else if (nrStatus == NetworkRegistrationState.NR_STATUS_NOT_RESTRICTED) {
+        } else if (nrState == NetworkRegistrationInfo.NR_STATE_NOT_RESTRICTED) {
             if (mConfig.nr5GIconMap.containsKey(Config.NR_NOT_RESTRICTED)) {
                 return mConfig.nr5GIconMap.get(Config.NR_NOT_RESTRICTED);
             }
-        } else if (nrStatus == NetworkRegistrationState.NR_STATUS_RESTRICTED) {
+        } else if (nrState == NetworkRegistrationInfo.NR_STATE_RESTRICTED) {
             if (mConfig.nr5GIconMap.containsKey(Config.NR_RESTRICTED)) {
                 return mConfig.nr5GIconMap.get(Config.NR_RESTRICTED);
             }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerDataTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerDataTest.java
index 2baea1a..96fad21 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerDataTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerDataTest.java
@@ -7,7 +7,7 @@
 
 import android.net.NetworkCapabilities;
 import android.os.Looper;
-import android.telephony.NetworkRegistrationState;
+import android.telephony.NetworkRegistrationInfo;
 import android.telephony.ServiceState;
 import android.telephony.TelephonyManager;
 import android.test.suitebuilder.annotation.SmallTest;
@@ -151,7 +151,7 @@
         updateDataConnectionState(TelephonyManager.DATA_CONNECTED,
                 TelephonyManager.NETWORK_TYPE_LTE);
         ServiceState ss = Mockito.mock(ServiceState.class);
-        doReturn(NetworkRegistrationState.NR_STATUS_CONNECTED).when(ss).getNrStatus();
+        doReturn(NetworkRegistrationInfo.NR_STATE_CONNECTED).when(ss).getNrState();
         doReturn(ServiceState.FREQUENCY_RANGE_HIGH).when(ss).getNrFrequencyRange();
         mPhoneStateListener.onServiceStateChanged(ss);
 
@@ -165,7 +165,7 @@
         updateDataConnectionState(TelephonyManager.DATA_CONNECTED,
                 TelephonyManager.NETWORK_TYPE_LTE);
         ServiceState ss = Mockito.mock(ServiceState.class);
-        doReturn(NetworkRegistrationState.NR_STATUS_CONNECTED).when(ss).getNrStatus();
+        doReturn(NetworkRegistrationInfo.NR_STATE_CONNECTED).when(ss).getNrState();
         doReturn(ServiceState.FREQUENCY_RANGE_MMWAVE).when(ss).getNrFrequencyRange();
         mPhoneStateListener.onServiceStateChanged(ss);
 
@@ -179,7 +179,7 @@
         updateDataConnectionState(TelephonyManager.DATA_CONNECTED,
                 TelephonyManager.NETWORK_TYPE_LTE);
         ServiceState ss = Mockito.mock(ServiceState.class);
-        doReturn(NetworkRegistrationState.NR_STATUS_RESTRICTED).when(ss).getNrStatus();
+        doReturn(NetworkRegistrationInfo.NR_STATE_RESTRICTED).when(ss).getNrState();
         mPhoneStateListener.onServiceStateChanged(mServiceState);
 
         verifyDataIndicators(TelephonyIcons.ICON_LTE);
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 4416b4d..52fcd4a 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -2174,7 +2174,7 @@
             if (VDBG) log("identical MTU - not setting");
             return;
         }
-        if (LinkProperties.isValidMtu(mtu, newLp.hasGlobalIPv6Address()) == false) {
+        if (!LinkProperties.isValidMtu(mtu, newLp.hasGlobalIpv6Address())) {
             if (mtu != 0) loge("Unexpected mtu value: " + mtu + ", " + iface);
             return;
         }
@@ -2561,19 +2561,11 @@
 
                     final boolean partialConnectivity =
                             (msg.arg1 == NETWORK_TEST_RESULT_PARTIAL_CONNECTIVITY)
-                                    // If user accepts partial connectivity network, NetworkMonitor
-                                    // will skip https probing. It will make partial connectivity
-                                    // network becomes valid. But user still need to know this
-                                    // network is limited. So, it's needed to refer to
-                                    // acceptPartialConnectivity to add
-                                    // NET_CAPABILITY_PARTIAL_CONNECTIVITY into NetworkCapabilities
-                                    // of this network. So that user can see "Limited connection"
-                                    // in the settings.
                                     || (nai.networkMisc.acceptPartialConnectivity
                                             && nai.partialConnectivity);
                     // Once a network is determined to have partial connectivity, it cannot
                     // go back to full connectivity without a disconnect.
-                    final boolean partialConnectivityChange =
+                    final boolean partialConnectivityChanged =
                             (partialConnectivity && !nai.partialConnectivity);
 
                     final boolean valid = (msg.arg1 == NETWORK_TEST_RESULT_VALID);
@@ -2584,17 +2576,6 @@
                         nai.captivePortalLoginNotified = true;
                         showNetworkNotification(nai, NotificationType.LOGGED_IN);
                     }
-                    // If this network has just connected and partial connectivity has just been
-                    // detected, tell NetworkMonitor if the user accepted partial connectivity on a
-                    // previous connect.
-                    if ((msg.arg1 == NETWORK_TEST_RESULT_PARTIAL_CONNECTIVITY)
-                            && nai.networkMisc.acceptPartialConnectivity) {
-                        try {
-                            nai.networkMonitor().notifyAcceptPartialConnectivity();
-                        } catch (RemoteException e) {
-                            e.rethrowFromSystemServer();
-                        }
-                    }
 
                     final String redirectUrl = (msg.obj instanceof String) ? (String) msg.obj : "";
 
@@ -2624,7 +2605,7 @@
                             mNotifier.clearNotification(nai.network.netId,
                                     NotificationType.LOST_INTERNET);
                         }
-                    } else if (partialConnectivityChange) {
+                    } else if (partialConnectivityChanged) {
                         nai.partialConnectivity = partialConnectivity;
                         updateCapabilities(nai.getCurrentScore(), nai, nai.networkCapabilities);
                     }
@@ -3378,8 +3359,11 @@
             // Tear down the network.
             teardownUnneededNetwork(nai);
         } else {
+            // Inform NetworkMonitor that partial connectivity is acceptable. This will likely
+            // result in a partial connectivity result which will be processed by
+            // maybeHandleNetworkMonitorMessage.
             try {
-                nai.networkMonitor().notifyAcceptPartialConnectivity();
+                nai.networkMonitor().setAcceptPartialConnectivity();
             } catch (RemoteException e) {
                 e.rethrowFromSystemServer();
             }
@@ -3587,6 +3571,9 @@
         // because we're already prompting the user to sign in.
         if (nai == null || nai.everValidated || nai.everCaptivePortalDetected
                 || !nai.networkMisc.explicitlySelected || nai.networkMisc.acceptUnvalidated
+                // TODO: Once the value of acceptPartialConnectivity is moved to IpMemoryStore,
+                // we should reevaluate how to handle acceptPartialConnectivity when network just
+                // connected.
                 || nai.networkMisc.acceptPartialConnectivity) {
             return;
         }
@@ -6395,6 +6382,9 @@
             // NetworkMonitor seeing the correct LinkProperties when starting.
             // TODO: pass LinkProperties to the NetworkMonitor in the notifyNetworkConnected call.
             try {
+                if (networkAgent.networkMisc.acceptPartialConnectivity) {
+                    networkAgent.networkMonitor().setAcceptPartialConnectivity();
+                }
                 networkAgent.networkMonitor().notifyNetworkConnected();
             } catch (RemoteException e) {
                 e.rethrowFromSystemServer();
diff --git a/services/core/java/com/android/server/DynamicAndroidService.java b/services/core/java/com/android/server/DynamicAndroidService.java
index 8488941..b02bfb1 100644
--- a/services/core/java/com/android/server/DynamicAndroidService.java
+++ b/services/core/java/com/android/server/DynamicAndroidService.java
@@ -25,6 +25,7 @@
 import android.os.IDynamicAndroidService;
 import android.os.RemoteException;
 import android.os.ServiceManager;
+import android.os.SystemProperties;
 import android.util.Slog;
 
 /**
@@ -34,6 +35,7 @@
 public class DynamicAndroidService extends IDynamicAndroidService.Stub implements DeathRecipient {
     private static final String TAG = "DynamicAndroidService";
     private static final String NO_SERVICE_ERROR = "no gsiservice";
+    private static final int GSID_ROUGH_TIMEOUT_MS = 8192;
 
     private Context mContext;
     private volatile IGsiService mGsiService;
@@ -66,12 +68,27 @@
 
     private IGsiService getGsiService() throws RemoteException {
         checkPermission();
-        synchronized (this) {
-            if (mGsiService == null) {
-                mGsiService = connect(this);
-            }
-            return mGsiService;
+        if (!"running".equals(SystemProperties.get("init.svc.gsid"))) {
+            SystemProperties.set("ctl.start", "gsid");
         }
+        for (int sleepMs = 64; sleepMs <= (GSID_ROUGH_TIMEOUT_MS << 1); sleepMs <<= 1) {
+            try {
+                Thread.sleep(sleepMs);
+            } catch (InterruptedException e) {
+                Slog.e(TAG, "Interrupted when waiting for GSID");
+                break;
+            }
+            if ("running".equals(SystemProperties.get("init.svc.gsid"))) {
+                synchronized (this) {
+                    if (mGsiService == null) {
+                        mGsiService = connect(this);
+                    }
+                    return mGsiService;
+                }
+            }
+        }
+        Slog.e(TAG, "Unable to start gsid");
+        return null;
     }
 
     private void checkPermission() {
diff --git a/services/core/java/com/android/server/NetworkManagementService.java b/services/core/java/com/android/server/NetworkManagementService.java
index a9645c4..06b85da 100644
--- a/services/core/java/com/android/server/NetworkManagementService.java
+++ b/services/core/java/com/android/server/NetworkManagementService.java
@@ -39,7 +39,6 @@
 import static android.net.NetworkStats.UID_ALL;
 import static android.net.TrafficStats.UID_TETHERING;
 
-import static com.android.server.NetworkManagementService.NetdResponseCode.TtyListResult;
 import static com.android.server.NetworkManagementSocketTagger.PROP_QTAGUID_ENABLED;
 
 import android.annotation.NonNull;
@@ -62,6 +61,7 @@
 import android.net.RouteInfo;
 import android.net.TetherStatsParcel;
 import android.net.UidRange;
+import android.net.UidRangeParcel;
 import android.net.util.NetdService;
 import android.os.BatteryStats;
 import android.os.Binder;
@@ -69,7 +69,6 @@
 import android.os.IBinder;
 import android.os.INetworkActivityListener;
 import android.os.INetworkManagementService;
-import android.os.PowerManager;
 import android.os.Process;
 import android.os.RemoteCallbackList;
 import android.os.RemoteException;
@@ -80,6 +79,7 @@
 import android.os.SystemProperties;
 import android.os.Trace;
 import android.telephony.DataConnectionRealTimeInfo;
+import android.text.TextUtils;
 import android.util.Log;
 import android.util.Slog;
 import android.util.SparseBooleanArray;
@@ -109,13 +109,11 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.concurrent.CountDownLatch;
 
 /**
  * @hide
  */
-public class NetworkManagementService extends INetworkManagementService.Stub
-        implements Watchdog.Monitor {
+public class NetworkManagementService extends INetworkManagementService.Stub {
 
     /**
      * Helper class that encapsulates NetworkManagementService dependencies and makes them
@@ -135,8 +133,6 @@
 
     private static final String TAG = "NetworkManagement";
     private static final boolean DBG = Log.isLoggable(TAG, Log.DEBUG);
-    private static final String NETD_TAG = "NetdConnector";
-    static final String NETD_SERVICE_NAME = "netd";
 
     private static final int MAX_UID_RANGES_PER_COMMAND = 10;
 
@@ -146,44 +142,6 @@
      */
     public static final String LIMIT_GLOBAL_ALERT = "globalAlert";
 
-    static class NetdResponseCode {
-        /* Keep in sync with system/netd/server/ResponseCode.h */
-        public static final int InterfaceListResult       = 110;
-        public static final int TetherInterfaceListResult = 111;
-        public static final int TetherDnsFwdTgtListResult = 112;
-        public static final int TtyListResult             = 113;
-        public static final int TetheringStatsListResult  = 114;
-
-        public static final int TetherStatusResult        = 210;
-        public static final int IpFwdStatusResult         = 211;
-        public static final int InterfaceGetCfgResult     = 213;
-        public static final int SoftapStatusResult        = 214;
-        public static final int InterfaceRxCounterResult  = 216;
-        public static final int InterfaceTxCounterResult  = 217;
-        public static final int QuotaCounterResult        = 220;
-        public static final int TetheringStatsResult      = 221;
-        public static final int DnsProxyQueryResult       = 222;
-        public static final int ClatdStatusResult         = 223;
-
-        public static final int InterfaceChange           = 600;
-        public static final int BandwidthControl          = 601;
-        public static final int InterfaceClassActivity    = 613;
-        public static final int InterfaceAddressChange    = 614;
-        public static final int InterfaceDnsServerInfo    = 615;
-        public static final int RouteChange               = 616;
-        public static final int StrictCleartext           = 617;
-    }
-
-    /**
-     * String indicating a softap command.
-     */
-    static final String SOFT_AP_COMMAND = "softap";
-
-    /**
-     * String passed back to netd connector indicating softap command success.
-     */
-    static final String SOFT_AP_COMMAND_SUCCESS = "Ok";
-
     static final int DAEMON_MSG_MOBILE_CONN_REAL_TIME_INFO = 1;
 
     static final boolean MODIFY_OPERATION_ADD = true;
@@ -194,12 +152,6 @@
      */
     private final Context mContext;
 
-    /**
-     * connector object for communicating with netd
-     */
-    private final NativeDaemonConnector mConnector;
-
-    private final Handler mFgHandler;
     private final Handler mDaemonHandler;
 
     private final SystemServices mServices;
@@ -210,9 +162,6 @@
 
     private IBatteryStats mBatteryStats;
 
-    private final Thread mThread;
-    private CountDownLatch mConnectedSignal = new CountDownLatch(1);
-
     private final RemoteCallbackList<INetworkManagementEventObserver> mObservers =
             new RemoteCallbackList<>();
 
@@ -304,32 +253,14 @@
      * @param context  Binder context for this service
      */
     private NetworkManagementService(
-            Context context, String socket, SystemServices services) {
+            Context context, SystemServices services) {
         mContext = context;
         mServices = services;
 
-        // make sure this is on the same looper as our NativeDaemonConnector for sync purposes
-        mFgHandler = new Handler(FgThread.get().getLooper());
-
-        // Don't need this wake lock, since we now have a time stamp for when
-        // the network actually went inactive.  (It might be nice to still do this,
-        // but I don't want to do it through the power manager because that pollutes the
-        // battery stats history with pointless noise.)
-        //PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
-        PowerManager.WakeLock wl = null; //pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, NETD_TAG);
-
-        mConnector = new NativeDaemonConnector(
-                new NetdCallbackReceiver(), socket, 10, NETD_TAG, 160, wl,
-                FgThread.get().getLooper());
-        mThread = new Thread(mConnector, NETD_TAG);
-
         mDaemonHandler = new Handler(FgThread.get().getLooper());
 
         mNetdUnsolicitedEventListener = new NetdUnsolicitedEventListener();
 
-        // Add ourself to the Watchdog monitors.
-        Watchdog.getInstance().addMonitor(this);
-
         mServices.registerLocalService(new LocalService());
 
         synchronized (mTetheringStatsProviders) {
@@ -339,25 +270,17 @@
 
     @VisibleForTesting
     NetworkManagementService() {
-        mConnector = null;
         mContext = null;
         mDaemonHandler = null;
-        mFgHandler = null;
-        mThread = null;
         mServices = null;
         mNetdUnsolicitedEventListener = null;
     }
 
-    static NetworkManagementService create(Context context, String socket, SystemServices services)
+    static NetworkManagementService create(Context context, SystemServices services)
             throws InterruptedException {
         final NetworkManagementService service =
-                new NetworkManagementService(context, socket, services);
-        final CountDownLatch connectedSignal = service.mConnectedSignal;
+                new NetworkManagementService(context, services);
         if (DBG) Slog.d(TAG, "Creating NetworkManagementService");
-        service.mThread.start();
-        if (DBG) Slog.d(TAG, "Awaiting socket connection");
-        connectedSignal.await();
-        if (DBG) Slog.d(TAG, "Connected");
         if (DBG) Slog.d(TAG, "Connecting native netd service");
         service.connectNativeNetdService();
         if (DBG) Slog.d(TAG, "Connected");
@@ -365,7 +288,7 @@
     }
 
     public static NetworkManagementService create(Context context) throws InterruptedException {
-        return create(context, NETD_SERVICE_NAME, new SystemServices());
+        return create(context, new SystemServices());
     }
 
     public void systemReady() {
@@ -805,212 +728,6 @@
     }
 
     //
-    // Netd Callback handling
-    //
-
-    private class NetdCallbackReceiver implements INativeDaemonConnectorCallbacks {
-        @Override
-        public void onDaemonConnected() {
-            Slog.i(TAG, "onDaemonConnected()");
-            // event is dispatched from internal NDC thread, so we prepare the
-            // daemon back on main thread.
-            if (mConnectedSignal != null) {
-                // The system is booting and we're connecting to netd for the first time.
-                mConnectedSignal.countDown();
-                mConnectedSignal = null;
-            } else {
-                // We're reconnecting to netd after the socket connection
-                // was interrupted (e.g., if it crashed).
-                mFgHandler.post(new Runnable() {
-                    @Override
-                    public void run() {
-                        connectNativeNetdService();
-                        prepareNativeDaemon();
-                    }
-                });
-            }
-        }
-
-        @Override
-        public boolean onCheckHoldWakeLock(int code) {
-            return code == NetdResponseCode.InterfaceClassActivity;
-        }
-
-        @Override
-        public boolean onEvent(int code, String raw, String[] cooked) {
-            String errorMessage = String.format("Invalid event from daemon (%s)", raw);
-            switch (code) {
-            case NetdResponseCode.InterfaceChange:
-                    /*
-                     * a network interface change occured
-                     * Format: "NNN Iface added <name>"
-                     *         "NNN Iface removed <name>"
-                     *         "NNN Iface changed <name> <up/down>"
-                     *         "NNN Iface linkstatus <name> <up/down>"
-                     */
-                    if (cooked.length < 4 || !cooked[1].equals("Iface")) {
-                        throw new IllegalStateException(errorMessage);
-                    }
-                    if (cooked[2].equals("added")) {
-                        notifyInterfaceAdded(cooked[3]);
-                        return true;
-                    } else if (cooked[2].equals("removed")) {
-                        notifyInterfaceRemoved(cooked[3]);
-                        return true;
-                    } else if (cooked[2].equals("changed") && cooked.length == 5) {
-                        notifyInterfaceStatusChanged(cooked[3], cooked[4].equals("up"));
-                        return true;
-                    } else if (cooked[2].equals("linkstate") && cooked.length == 5) {
-                        notifyInterfaceLinkStateChanged(cooked[3], cooked[4].equals("up"));
-                        return true;
-                    }
-                    throw new IllegalStateException(errorMessage);
-                    // break;
-            case NetdResponseCode.BandwidthControl:
-                    /*
-                     * Bandwidth control needs some attention
-                     * Format: "NNN limit alert <alertName> <ifaceName>"
-                     */
-                    if (cooked.length < 5 || !cooked[1].equals("limit")) {
-                        throw new IllegalStateException(errorMessage);
-                    }
-                    if (cooked[2].equals("alert")) {
-                        notifyLimitReached(cooked[3], cooked[4]);
-                        return true;
-                    }
-                    throw new IllegalStateException(errorMessage);
-                    // break;
-            case NetdResponseCode.InterfaceClassActivity:
-                    /*
-                     * An network interface class state changed (active/idle)
-                     * Format: "NNN IfaceClass <active/idle> <label>"
-                     */
-                    if (cooked.length < 4 || !cooked[1].equals("IfaceClass")) {
-                        throw new IllegalStateException(errorMessage);
-                    }
-                    long timestampNanos = 0;
-                    int processUid = -1;
-                    if (cooked.length >= 5) {
-                        try {
-                            timestampNanos = Long.parseLong(cooked[4]);
-                            if (cooked.length == 6) {
-                                processUid = Integer.parseInt(cooked[5]);
-                            }
-                        } catch(NumberFormatException ne) {}
-                    } else {
-                        timestampNanos = SystemClock.elapsedRealtimeNanos();
-                    }
-                    boolean isActive = cooked[2].equals("active");
-                    notifyInterfaceClassActivity(Integer.parseInt(cooked[3]),
-                            isActive, timestampNanos, processUid, false);
-                    return true;
-                    // break;
-            case NetdResponseCode.InterfaceAddressChange:
-                    /*
-                     * A network address change occurred
-                     * Format: "NNN Address updated <addr> <iface> <flags> <scope>"
-                     *         "NNN Address removed <addr> <iface> <flags> <scope>"
-                     */
-                    if (cooked.length < 7 || !cooked[1].equals("Address")) {
-                        throw new IllegalStateException(errorMessage);
-                    }
-
-                    String iface = cooked[4];
-                    LinkAddress address;
-                    try {
-                        int flags = Integer.parseInt(cooked[5]);
-                        int scope = Integer.parseInt(cooked[6]);
-                        address = new LinkAddress(cooked[3], flags, scope);
-                    } catch(NumberFormatException e) {     // Non-numeric lifetime or scope.
-                        throw new IllegalStateException(errorMessage, e);
-                    } catch(IllegalArgumentException e) {  // Malformed/invalid IP address.
-                        throw new IllegalStateException(errorMessage, e);
-                    }
-
-                    if (cooked[2].equals("updated")) {
-                        notifyAddressUpdated(iface, address);
-                    } else {
-                        notifyAddressRemoved(iface, address);
-                    }
-                    return true;
-                    // break;
-            case NetdResponseCode.InterfaceDnsServerInfo:
-                    /*
-                     * Information about available DNS servers has been received.
-                     * Format: "NNN DnsInfo servers <interface> <lifetime> <servers>"
-                     */
-                    long lifetime;  // Actually a 32-bit unsigned integer.
-
-                    if (cooked.length == 6 &&
-                        cooked[1].equals("DnsInfo") &&
-                        cooked[2].equals("servers")) {
-                        try {
-                            lifetime = Long.parseLong(cooked[4]);
-                        } catch (NumberFormatException e) {
-                            throw new IllegalStateException(errorMessage);
-                        }
-                        String[] servers = cooked[5].split(",");
-                        notifyInterfaceDnsServerInfo(cooked[3], lifetime, servers);
-                    }
-                    return true;
-                    // break;
-            case NetdResponseCode.RouteChange:
-                    /*
-                     * A route has been updated or removed.
-                     * Format: "NNN Route <updated|removed> <dst> [via <gateway] [dev <iface>]"
-                     */
-                    if (!cooked[1].equals("Route") || cooked.length < 6) {
-                        throw new IllegalStateException(errorMessage);
-                    }
-
-                    String via = null;
-                    String dev = null;
-                    boolean valid = true;
-                    for (int i = 4; (i + 1) < cooked.length && valid; i += 2) {
-                        if (cooked[i].equals("dev")) {
-                            if (dev == null) {
-                                dev = cooked[i+1];
-                            } else {
-                                valid = false;  // Duplicate interface.
-                            }
-                        } else if (cooked[i].equals("via")) {
-                            if (via == null) {
-                                via = cooked[i+1];
-                            } else {
-                                valid = false;  // Duplicate gateway.
-                            }
-                        } else {
-                            valid = false;      // Unknown syntax.
-                        }
-                    }
-                    if (valid) {
-                        try {
-                            // InetAddress.parseNumericAddress(null) inexplicably returns ::1.
-                            InetAddress gateway = null;
-                            if (via != null) gateway = InetAddress.parseNumericAddress(via);
-                            RouteInfo route = new RouteInfo(new IpPrefix(cooked[3]), gateway, dev);
-                            notifyRouteChange(cooked[2].equals("updated"), route);
-                            return true;
-                        } catch (IllegalArgumentException e) {}
-                    }
-                    throw new IllegalStateException(errorMessage);
-                    // break;
-            case NetdResponseCode.StrictCleartext:
-                final int uid = Integer.parseInt(cooked[1]);
-                final byte[] firstPacket = HexDump.hexStringToByteArray(cooked[2]);
-                try {
-                    ActivityManager.getService().notifyCleartextNetwork(uid, firstPacket);
-                } catch (RemoteException ignored) {
-                }
-                break;
-            default: break;
-            }
-            return false;
-        }
-    }
-
-
-    //
     // INetworkManagementService members
     //
     @Override
@@ -1023,6 +740,46 @@
         }
     }
 
+    /**
+     * Convert InterfaceConfiguration to InterfaceConfigurationParcel with given ifname.
+     */
+    private static InterfaceConfigurationParcel toStableParcel(InterfaceConfiguration cfg,
+            String iface) {
+        InterfaceConfigurationParcel cfgParcel = new InterfaceConfigurationParcel();
+        cfgParcel.ifName = iface;
+        String hwAddr = cfg.getHardwareAddress();
+        if (!TextUtils.isEmpty(hwAddr)) {
+            cfgParcel.hwAddr = hwAddr;
+        } else {
+            cfgParcel.hwAddr = "";
+        }
+        cfgParcel.ipv4Addr = cfg.getLinkAddress().getAddress().getHostAddress();
+        cfgParcel.prefixLength = cfg.getLinkAddress().getPrefixLength();
+        ArrayList<String> flags = new ArrayList<>();
+        for (String flag : cfg.getFlags()) {
+            flags.add(flag);
+        }
+        cfgParcel.flags = flags.toArray(new String[0]);
+
+        return cfgParcel;
+    }
+
+    /**
+     * Construct InterfaceConfiguration from InterfaceConfigurationParcel.
+     */
+    public static InterfaceConfiguration fromStableParcel(InterfaceConfigurationParcel p) {
+        InterfaceConfiguration cfg = new InterfaceConfiguration();
+        cfg.setHardwareAddress(p.hwAddr);
+
+        final InetAddress addr = NetworkUtils.numericToInetAddress(p.ipv4Addr);
+        cfg.setLinkAddress(new LinkAddress(addr, p.prefixLength));
+        for (String flag : p.flags) {
+            cfg.setFlag(flag);
+        }
+
+        return cfg;
+    }
+
     @Override
     public InterfaceConfiguration getInterfaceConfig(String iface) {
         mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
@@ -1034,7 +791,7 @@
         }
 
         try {
-            final InterfaceConfiguration cfg = InterfaceConfiguration.fromParcel(result);
+            final InterfaceConfiguration cfg = fromStableParcel(result);
             return cfg;
         } catch (IllegalArgumentException iae) {
             throw new IllegalStateException("Invalid InterfaceConfigurationParcel", iae);
@@ -1049,7 +806,7 @@
             throw new IllegalStateException("Null LinkAddress given");
         }
 
-        final InterfaceConfigurationParcel cfgParcel = cfg.toParcel(iface);
+        final InterfaceConfigurationParcel cfgParcel = toStableParcel(cfg, iface);
 
         try {
             mNetdService.interfaceSetCfg(cfgParcel);
@@ -1392,42 +1149,6 @@
     }
 
     @Override
-    public String[] listTtys() {
-        mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
-        try {
-            return NativeDaemonEvent.filterMessageList(
-                    mConnector.executeForList("list_ttys"), TtyListResult);
-        } catch (NativeDaemonConnectorException e) {
-            throw e.rethrowAsParcelableException();
-        }
-    }
-
-    @Override
-    public void attachPppd(
-            String tty, String localAddr, String remoteAddr, String dns1Addr, String dns2Addr) {
-        mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
-        try {
-            mConnector.execute("pppd", "attach", tty,
-                    NetworkUtils.numericToInetAddress(localAddr).getHostAddress(),
-                    NetworkUtils.numericToInetAddress(remoteAddr).getHostAddress(),
-                    NetworkUtils.numericToInetAddress(dns1Addr).getHostAddress(),
-                    NetworkUtils.numericToInetAddress(dns2Addr).getHostAddress());
-        } catch (NativeDaemonConnectorException e) {
-            throw e.rethrowAsParcelableException();
-        }
-    }
-
-    @Override
-    public void detachPppd(String tty) {
-        mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
-        try {
-            mConnector.execute("pppd", "detach", tty);
-        } catch (NativeDaemonConnectorException e) {
-            throw e.rethrowAsParcelableException();
-        }
-    }
-
-    @Override
     public void addIdleTimer(String iface, int timeout, final int type) {
         mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
 
@@ -1713,12 +1434,27 @@
         }
     }
 
+    private static UidRangeParcel makeUidRangeParcel(int start, int stop) {
+        UidRangeParcel range = new UidRangeParcel();
+        range.start = start;
+        range.stop = stop;
+        return range;
+    }
+
+    private static UidRangeParcel[] toStableParcels(UidRange[] ranges) {
+        UidRangeParcel[] stableRanges = new UidRangeParcel[ranges.length];
+        for (int i = 0; i < ranges.length; i++) {
+            stableRanges[i] = makeUidRangeParcel(ranges[i].start, ranges[i].stop);
+        }
+        return stableRanges;
+    }
+
     @Override
     public void setAllowOnlyVpnForUids(boolean add, UidRange[] uidRanges)
             throws ServiceSpecificException {
         mContext.enforceCallingOrSelfPermission(NETWORK_STACK, TAG);
         try {
-            mNetdService.networkRejectNonSecureVpn(add, uidRanges);
+            mNetdService.networkRejectNonSecureVpn(add, toStableParcels(uidRanges));
         } catch (ServiceSpecificException e) {
             Log.w(TAG, "setAllowOnlyVpnForUids(" + add + ", " + Arrays.toString(uidRanges) + ")"
                     + ": netd command failed", e);
@@ -1887,7 +1623,7 @@
         mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
 
         try {
-            mNetdService.networkAddUidRanges(netId, ranges);
+            mNetdService.networkAddUidRanges(netId, toStableParcels(ranges));
         } catch (RemoteException | ServiceSpecificException e) {
             throw new IllegalStateException(e);
         }
@@ -1897,7 +1633,7 @@
     public void removeVpnUidRanges(int netId, UidRange[] ranges) {
         mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
         try {
-            mNetdService.networkRemoveUidRanges(netId, ranges);
+            mNetdService.networkRemoveUidRanges(netId, toStableParcels(ranges));
         } catch (RemoteException | ServiceSpecificException e) {
             throw new IllegalStateException(e);
         }
@@ -1935,7 +1671,7 @@
 
     private void closeSocketsForFirewallChainLocked(int chain, String chainName) {
         // UID ranges to close sockets on.
-        UidRange[] ranges;
+        UidRangeParcel[] ranges;
         // UID ranges whose sockets we won't touch.
         int[] exemptUids;
 
@@ -1943,10 +1679,10 @@
         if (DBG) Slog.d(TAG, "Closing sockets after enabling chain " + chainName);
         if (getFirewallType(chain) == FIREWALL_WHITELIST) {
             // Close all sockets on all non-system UIDs...
-            ranges = new UidRange[] {
+            ranges = new UidRangeParcel[] {
                 // TODO: is there a better way of finding all existing users? If so, we could
                 // specify their ranges here.
-                new UidRange(Process.FIRST_APPLICATION_UID, Integer.MAX_VALUE),
+                makeUidRangeParcel(Process.FIRST_APPLICATION_UID, Integer.MAX_VALUE),
             };
             // ... except for the UIDs that have allow rules.
             synchronized (mRulesLock) {
@@ -1973,11 +1709,11 @@
             // Close sockets for every UID that has a deny rule...
             synchronized (mRulesLock) {
                 final SparseIntArray rules = getUidFirewallRulesLR(chain);
-                ranges = new UidRange[rules.size()];
+                ranges = new UidRangeParcel[rules.size()];
                 for (int i = 0; i < ranges.length; i++) {
                     if (rules.valueAt(i) == FIREWALL_RULE_DENY) {
                         int uid = rules.keyAt(i);
-                        ranges[numUids] = new UidRange(uid, uid);
+                        ranges[numUids] = makeUidRangeParcel(uid, uid);
                         numUids++;
                     }
                 }
@@ -2232,22 +1968,10 @@
         }
     }
 
-    /** {@inheritDoc} */
-    @Override
-    public void monitor() {
-        if (mConnector != null) {
-            mConnector.monitor();
-        }
-    }
-
     @Override
     protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
         if (!DumpUtils.checkDumpPermission(mContext, TAG, pw)) return;
 
-        pw.println("NetworkManagementService NativeDaemonConnector Log:");
-        mConnector.dump(fd, pw, args);
-        pw.println();
-
         pw.print("mMobileActivityFromRadio="); pw.print(mMobileActivityFromRadio);
                 pw.print(" mLastPowerStateFromRadio="); pw.println(mLastPowerStateFromRadio);
         pw.print("mNetworkActive="); pw.println(mNetworkActive);
diff --git a/services/core/java/com/android/server/TelephonyRegistry.java b/services/core/java/com/android/server/TelephonyRegistry.java
index d2a0d7b..fdd698f 100644
--- a/services/core/java/com/android/server/TelephonyRegistry.java
+++ b/services/core/java/com/android/server/TelephonyRegistry.java
@@ -627,6 +627,11 @@
                 r.callingPackage = callingPackage;
                 r.callerUid = Binder.getCallingUid();
                 r.callerPid = Binder.getCallingPid();
+                if (r.subId != SubscriptionManager.INVALID_SUBSCRIPTION_ID && r.subId != subId) {
+                    throw new IllegalArgumentException(
+                            "PhoneStateListener cannot concurrently listen on multiple " +
+                                    "subscriptions. Previously registered on subId: " + r.subId);
+                }
                 // Legacy applications pass SubscriptionManager.DEFAULT_SUB_ID,
                 // force all illegal subId to SubscriptionManager.DEFAULT_SUB_ID
                 if (!SubscriptionManager.isValidSubscriptionId(subId)) {
diff --git a/services/core/java/com/android/server/am/UserController.java b/services/core/java/com/android/server/am/UserController.java
index 4746e12..3f48e28 100644
--- a/services/core/java/com/android/server/am/UserController.java
+++ b/services/core/java/com/android/server/am/UserController.java
@@ -383,14 +383,14 @@
      * Step from {@link UserState#STATE_RUNNING_LOCKED} to
      * {@link UserState#STATE_RUNNING_UNLOCKING}.
      */
-    private void finishUserUnlocking(final UserState uss) {
+    private boolean finishUserUnlocking(final UserState uss) {
         final int userId = uss.mHandle.getIdentifier();
         // Only keep marching forward if user is actually unlocked
-        if (!StorageManager.isUserKeyUnlocked(userId)) return;
+        if (!StorageManager.isUserKeyUnlocked(userId)) return false;
         synchronized (mLock) {
             // Do not proceed if unexpected state or a stale user
             if (mStartedUsers.get(userId) != uss || uss.state != STATE_RUNNING_LOCKED) {
-                return;
+                return false;
             }
         }
         uss.mUnlockProgress.start();
@@ -421,6 +421,7 @@
             mHandler.obtainMessage(SYSTEM_USER_UNLOCK_MSG, userId, 0, uss)
                     .sendToTarget();
         });
+        return true;
     }
 
     /**
@@ -1180,7 +1181,10 @@
             return false;
         }
 
-        finishUserUnlocking(uss);
+        if (!finishUserUnlocking(uss)) {
+            notifyFinished(userId, listener);
+            return false;
+        }
 
         // We just unlocked a user, so let's now attempt to unlock any
         // managed profiles under that user.
diff --git a/services/core/java/com/android/server/connectivity/DefaultNetworkMetrics.java b/services/core/java/com/android/server/connectivity/DefaultNetworkMetrics.java
index e43d152..96a202f 100644
--- a/services/core/java/com/android/server/connectivity/DefaultNetworkMetrics.java
+++ b/services/core/java/com/android/server/connectivity/DefaultNetworkMetrics.java
@@ -163,8 +163,8 @@
         LinkProperties lp = nai.linkProperties;
         ev.netId = nai.network().netId;
         ev.transports |= BitUtils.packBits(nai.networkCapabilities.getTransportTypes());
-        ev.ipv4 |= lp.hasIPv4Address() && lp.hasIPv4DefaultRoute();
-        ev.ipv6 |= lp.hasGlobalIPv6Address() && lp.hasIPv6DefaultRoute();
+        ev.ipv4 |= lp.hasIpv4Address() && lp.hasIpv4DefaultRoute();
+        ev.ipv6 |= lp.hasGlobalIpv6Address() && lp.hasIpv6DefaultRoute();
     }
 
     private static void printEvent(long localTimeMs, PrintWriter pw, DefaultNetworkEvent ev) {
diff --git a/services/core/java/com/android/server/connectivity/KeepaliveTracker.java b/services/core/java/com/android/server/connectivity/KeepaliveTracker.java
index 35d6860..0e3d82c 100644
--- a/services/core/java/com/android/server/connectivity/KeepaliveTracker.java
+++ b/services/core/java/com/android/server/connectivity/KeepaliveTracker.java
@@ -42,7 +42,6 @@
 import android.net.SocketKeepalive.InvalidPacketException;
 import android.net.SocketKeepalive.InvalidSocketException;
 import android.net.TcpKeepalivePacketData;
-import android.net.TcpKeepalivePacketData.TcpSocketInfo;
 import android.net.util.IpUtils;
 import android.os.Binder;
 import android.os.Handler;
@@ -492,19 +491,14 @@
             return;
         }
 
-        TcpKeepalivePacketData packet = null;
+        final TcpKeepalivePacketData packet;
         try {
-            TcpSocketInfo tsi = TcpKeepaliveController.switchToRepairMode(fd);
-            packet = TcpKeepalivePacketData.tcpKeepalivePacket(tsi);
+            packet = TcpKeepaliveController.getTcpKeepalivePacket(fd);
         } catch (InvalidPacketException | InvalidSocketException e) {
-            try {
-                TcpKeepaliveController.switchOutOfRepairMode(fd);
-            } catch (ErrnoException e1) {
-                Log.e(TAG, "Couldn't move fd out of repair mode after failure to start keepalive");
-            }
             notifyErrorCallback(cb, e.error);
             return;
         }
+
         KeepaliveInfo ki = new KeepaliveInfo(cb, nai, packet, intervalSeconds,
                 KeepaliveInfo.TYPE_TCP, fd);
         Log.d(TAG, "Created keepalive: " + ki.toString());
diff --git a/services/core/java/com/android/server/connectivity/Nat464Xlat.java b/services/core/java/com/android/server/connectivity/Nat464Xlat.java
index 2646d76..262ba7a 100644
--- a/services/core/java/com/android/server/connectivity/Nat464Xlat.java
+++ b/services/core/java/com/android/server/connectivity/Nat464Xlat.java
@@ -107,8 +107,8 @@
         // Only run clat on networks that have a global IPv6 address and don't have a native IPv4
         // address.
         LinkProperties lp = nai.linkProperties;
-        final boolean isIpv6OnlyNetwork = (lp != null) && lp.hasGlobalIPv6Address()
-                && !lp.hasIPv4Address();
+        final boolean isIpv6OnlyNetwork = (lp != null) && lp.hasGlobalIpv6Address()
+                && !lp.hasIpv4Address();
 
         // If the network tells us it doesn't use clat, respect that.
         final boolean skip464xlat = (nai.netMisc() != null) && nai.netMisc().skip464xlat;
diff --git a/services/core/java/com/android/server/connectivity/NetworkDiagnostics.java b/services/core/java/com/android/server/connectivity/NetworkDiagnostics.java
index c471f0c..948c690 100644
--- a/services/core/java/com/android/server/connectivity/NetworkDiagnostics.java
+++ b/services/core/java/com/android/server/connectivity/NetworkDiagnostics.java
@@ -34,10 +34,12 @@
 
 import com.android.internal.util.IndentingPrintWriter;
 
+import libcore.io.IoUtils;
+
 import java.io.Closeable;
 import java.io.FileDescriptor;
-import java.io.InterruptedIOException;
 import java.io.IOException;
+import java.io.InterruptedIOException;
 import java.net.Inet4Address;
 import java.net.Inet6Address;
 import java.net.InetAddress;
@@ -48,17 +50,13 @@
 import java.net.UnknownHostException;
 import java.nio.ByteBuffer;
 import java.nio.charset.StandardCharsets;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.TimeUnit;
-import java.util.Arrays;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Random;
-
-import libcore.io.IoUtils;
-
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
 
 /**
  * NetworkDiagnostics
@@ -186,7 +184,7 @@
         // TODO: we could use mLinkProperties.isReachable(TEST_DNS6) here, because we won't set any
         // DNS servers for which isReachable() is false, but since this is diagnostic code, be extra
         // careful.
-        if (mLinkProperties.hasGlobalIPv6Address() || mLinkProperties.hasIPv6DefaultRoute()) {
+        if (mLinkProperties.hasGlobalIpv6Address() || mLinkProperties.hasIpv6DefaultRoute()) {
             mLinkProperties.addDnsServer(TEST_DNS6);
         }
 
diff --git a/services/core/java/com/android/server/connectivity/PermissionMonitor.java b/services/core/java/com/android/server/connectivity/PermissionMonitor.java
index d84a4d2..123564e 100644
--- a/services/core/java/com/android/server/connectivity/PermissionMonitor.java
+++ b/services/core/java/com/android/server/connectivity/PermissionMonitor.java
@@ -46,13 +46,11 @@
 import android.util.Slog;
 import android.util.SparseIntArray;
 
-import com.android.internal.annotations.GuardedBy;
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.util.ArrayUtils;
 import com.android.server.LocalServices;
 
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
@@ -84,20 +82,14 @@
     // Keys are App IDs. Values are true for SYSTEM permission and false for NETWORK permission.
     private final Map<Integer, Boolean> mApps = new HashMap<>();
 
-    // Keys are App packageNames, Values are app uids. . We need to keep track of this information
-    // because PackageListObserver#onPackageRemoved does not pass the UID.
-    @GuardedBy("mPackageNameUidMap")
-    private final Map<String, Integer> mPackageNameUidMap = new HashMap<>();
-
     private class PackageListObserver implements PackageManagerInternal.PackageListObserver {
         @Override
-        public void onPackageAdded(String packageName) {
+        public void onPackageAdded(String packageName, int uid) {
             final PackageInfo app = getPackageInfo(packageName);
             if (app == null) {
                 Slog.wtf(TAG, "Failed to get information of installed package: " + packageName);
                 return;
             }
-            int uid = (app.applicationInfo != null) ? app.applicationInfo.uid : INVALID_UID;
             if (uid == INVALID_UID) {
                 Slog.wtf(TAG, "Failed to get the uid of installed package: " + packageName
                         + "uid: " + uid);
@@ -107,29 +99,21 @@
                 return;
             }
             sendPackagePermissionsForUid(uid,
-                    filterPermission(Arrays.asList(app.requestedPermissions)));
-            synchronized (mPackageNameUidMap) {
-                mPackageNameUidMap.put(packageName, uid);
-            }
+                    getNetdPermissionMask(app.requestedPermissions));
         }
 
         @Override
-        public void onPackageRemoved(String packageName) {
-            int uid;
-            synchronized (mPackageNameUidMap) {
-                if (!mPackageNameUidMap.containsKey(packageName)) {
-                    return;
-                }
-                uid = mPackageNameUidMap.get(packageName);
-                mPackageNameUidMap.remove(packageName);
-            }
+        public void onPackageRemoved(String packageName, int uid) {
             int permission = 0;
+            // If there are still packages remain under the same uid, check the permission of the
+            // remaining packages. We only remove the permission for a given uid when all packages
+            // for that uid no longer have that permission.
             String[] packages = mPackageManager.getPackagesForUid(uid);
             if (packages != null && packages.length > 0) {
                 for (String name : packages) {
                     final PackageInfo app = getPackageInfo(name);
                     if (app != null && app.requestedPermissions != null) {
-                        permission |= filterPermission(Arrays.asList(app.requestedPermissions));
+                        permission |= getNetdPermissionMask(app.requestedPermissions);
                     }
                 }
             }
@@ -184,12 +168,9 @@
 
             //TODO: unify the management of the permissions into one codepath.
             if (app.requestedPermissions != null) {
-                int otherNetdPerms = filterPermission(Arrays.asList(app.requestedPermissions));
+                int otherNetdPerms = getNetdPermissionMask(app.requestedPermissions);
                 if (otherNetdPerms != 0) {
                     netdPermsUids.put(uid, netdPermsUids.get(uid) | otherNetdPerms);
-                    synchronized (mPackageNameUidMap) {
-                        mPackageNameUidMap.put(app.applicationInfo.packageName, uid);
-                    }
                 }
             }
         }
@@ -422,13 +403,15 @@
         }
     }
 
-    private static int filterPermission(List<String> requestedPermissions) {
+    private static int getNetdPermissionMask(String[] requestedPermissions) {
         int permissions = 0;
-        if (requestedPermissions.contains(INTERNET)) {
-            permissions |= INetd.PERMISSION_INTERNET;
-        }
-        if (requestedPermissions.contains(UPDATE_DEVICE_STATS)) {
-            permissions |= INetd.PERMISSION_UPDATE_DEVICE_STATS;
+        for (String permissionName : requestedPermissions) {
+            if (permissionName.equals(INTERNET)) {
+                permissions |= INetd.PERMISSION_INTERNET;
+            }
+            if (permissionName.equals(UPDATE_DEVICE_STATS)) {
+                permissions |= INetd.PERMISSION_UPDATE_DEVICE_STATS;
+            }
         }
         return permissions;
     }
@@ -439,8 +422,6 @@
                     | MATCH_ANY_USER);
             return app;
         } catch (NameNotFoundException e) {
-            // App not found.
-            loge("NameNotFoundException " + packageName);
             return null;
         }
     }
diff --git a/services/core/java/com/android/server/connectivity/TcpKeepaliveController.java b/services/core/java/com/android/server/connectivity/TcpKeepaliveController.java
index 3e21b5b..f4d9006 100644
--- a/services/core/java/com/android/server/connectivity/TcpKeepaliveController.java
+++ b/services/core/java/com/android/server/connectivity/TcpKeepaliveController.java
@@ -28,8 +28,10 @@
 
 import android.annotation.NonNull;
 import android.net.NetworkUtils;
+import android.net.SocketKeepalive.InvalidPacketException;
 import android.net.SocketKeepalive.InvalidSocketException;
-import android.net.TcpKeepalivePacketData.TcpSocketInfo;
+import android.net.TcpKeepalivePacketData;
+import android.net.TcpKeepalivePacketDataParcelable;
 import android.net.TcpRepairWindow;
 import android.os.Handler;
 import android.os.MessageQueue;
@@ -44,7 +46,6 @@
 import com.android.server.connectivity.KeepaliveTracker.KeepaliveInfo;
 
 import java.io.FileDescriptor;
-import java.net.InetAddress;
 import java.net.InetSocketAddress;
 import java.net.SocketAddress;
 import java.net.SocketException;
@@ -103,26 +104,30 @@
         mFdHandlerQueue = connectivityServiceHandler.getLooper().getQueue();
     }
 
+    /** Build tcp keepalive packet. */
+    public static TcpKeepalivePacketData getTcpKeepalivePacket(@NonNull FileDescriptor fd)
+            throws InvalidPacketException, InvalidSocketException {
+        try {
+            final TcpKeepalivePacketDataParcelable tcpDetails = switchToRepairMode(fd);
+            return TcpKeepalivePacketData.tcpKeepalivePacket(tcpDetails);
+        } catch (InvalidPacketException | InvalidSocketException e) {
+            switchOutOfRepairMode(fd);
+            throw e;
+        }
+    }
     /**
-     * Switch the tcp socket to repair mode and query tcp socket information.
+     * Switch the tcp socket to repair mode and query detail tcp information.
      *
-     * @param fd the fd of socket on which to use keepalive offload
-     * @return a {@link TcpKeepalivePacketData#TcpSocketInfo} object for current
+     * @param fd the fd of socket on which to use keepalive offload.
+     * @return a {@link TcpKeepalivePacketData#TcpKeepalivePacketDataParcelable} object for current
      * tcp/ip information.
      */
-    // TODO : make this private. It's far too confusing that this gets called from outside
-    // at a time that nobody can understand.
-    public static TcpSocketInfo switchToRepairMode(FileDescriptor fd)
+    private static TcpKeepalivePacketDataParcelable switchToRepairMode(FileDescriptor fd)
             throws InvalidSocketException {
         if (DBG) Log.i(TAG, "switchToRepairMode to start tcp keepalive : " + fd);
+        final TcpKeepalivePacketDataParcelable tcpDetails = new TcpKeepalivePacketDataParcelable();
         final SocketAddress srcSockAddr;
         final SocketAddress dstSockAddr;
-        final InetAddress srcAddress;
-        final InetAddress dstAddress;
-        final int srcPort;
-        final int dstPort;
-        int seq;
-        final int ack;
         final TcpRepairWindow trw;
 
         // Query source address and port.
@@ -133,8 +138,8 @@
             throw new InvalidSocketException(ERROR_INVALID_SOCKET, e);
         }
         if (srcSockAddr instanceof InetSocketAddress) {
-            srcAddress = getAddress((InetSocketAddress) srcSockAddr);
-            srcPort = getPort((InetSocketAddress) srcSockAddr);
+            tcpDetails.srcAddress = getAddress((InetSocketAddress) srcSockAddr);
+            tcpDetails.srcPort = getPort((InetSocketAddress) srcSockAddr);
         } else {
             Log.e(TAG, "Invalid or mismatched SocketAddress");
             throw new InvalidSocketException(ERROR_INVALID_SOCKET);
@@ -147,8 +152,8 @@
             throw new InvalidSocketException(ERROR_INVALID_SOCKET, e);
         }
         if (dstSockAddr instanceof InetSocketAddress) {
-            dstAddress = getAddress((InetSocketAddress) dstSockAddr);
-            dstPort = getPort((InetSocketAddress) dstSockAddr);
+            tcpDetails.dstAddress = getAddress((InetSocketAddress) dstSockAddr);
+            tcpDetails.dstPort = getPort((InetSocketAddress) dstSockAddr);
         } else {
             Log.e(TAG, "Invalid or mismatched peer SocketAddress");
             throw new InvalidSocketException(ERROR_INVALID_SOCKET);
@@ -157,28 +162,37 @@
         // Query sequence and ack number
         dropAllIncomingPackets(fd, true);
         try {
-            // Enter tcp repair mode.
+            // Switch to tcp repair mode.
             Os.setsockoptInt(fd, IPPROTO_TCP, TCP_REPAIR, TCP_REPAIR_ON);
+
             // Check if socket is idle.
             if (!isSocketIdle(fd)) {
+                Log.e(TAG, "Socket is not idle");
                 throw new InvalidSocketException(ERROR_SOCKET_NOT_IDLE);
             }
             // Query write sequence number from SEND_QUEUE.
             Os.setsockoptInt(fd, IPPROTO_TCP, TCP_REPAIR_QUEUE, TCP_SEND_QUEUE);
-            seq = Os.getsockoptInt(fd, IPPROTO_TCP, TCP_QUEUE_SEQ);
+            tcpDetails.seq = Os.getsockoptInt(fd, IPPROTO_TCP, TCP_QUEUE_SEQ);
             // Query read sequence number from RECV_QUEUE.
             Os.setsockoptInt(fd, IPPROTO_TCP, TCP_REPAIR_QUEUE, TCP_RECV_QUEUE);
-            ack = Os.getsockoptInt(fd, IPPROTO_TCP, TCP_QUEUE_SEQ);
+            tcpDetails.ack = Os.getsockoptInt(fd, IPPROTO_TCP, TCP_QUEUE_SEQ);
             // Switch to NO_QUEUE to prevent illegal socket read/write in repair mode.
             Os.setsockoptInt(fd, IPPROTO_TCP, TCP_REPAIR_QUEUE, TCP_NO_QUEUE);
             // Finally, check if socket is still idle. TODO : this check needs to move to
             // after starting polling to prevent a race.
-            if (!isSocketIdle(fd)) {
+            if (!isReceiveQueueEmpty(fd)) {
+                Log.e(TAG, "Fatal: receive queue of this socket is not empty");
                 throw new InvalidSocketException(ERROR_INVALID_SOCKET);
             }
+            if (!isSendQueueEmpty(fd)) {
+                Log.e(TAG, "Socket is not idle");
+                throw new InvalidSocketException(ERROR_SOCKET_NOT_IDLE);
+            }
 
             // Query tcp window size.
             trw = NetworkUtils.getTcpRepairWindow(fd);
+            tcpDetails.rcvWnd = trw.rcvWnd;
+            tcpDetails.rcvWndScale = trw.rcvWndScale;
         } catch (ErrnoException e) {
             Log.e(TAG, "Exception reading TCP state from socket", e);
             if (e.errno == ENOPROTOOPT) {
@@ -194,10 +208,9 @@
 
         // Keepalive sequence number is last sequence number - 1. If it couldn't be retrieved,
         // then it must be set to -1, so decrement in all cases.
-        seq = seq - 1;
+        tcpDetails.seq = tcpDetails.seq - 1;
 
-        return new TcpSocketInfo(srcAddress, srcPort, dstAddress, dstPort, seq, ack, trw.rcvWnd,
-                trw.rcvWndScale);
+        return tcpDetails;
     }
 
     /**
@@ -205,10 +218,13 @@
      *
      * @param fd the fd of socket to switch back to normal.
      */
-    // TODO : make this private.
-    public static void switchOutOfRepairMode(@NonNull final FileDescriptor fd)
-            throws ErrnoException {
-        Os.setsockoptInt(fd, IPPROTO_TCP, TCP_REPAIR, TCP_REPAIR_OFF);
+    private static void switchOutOfRepairMode(@NonNull final FileDescriptor fd) {
+        try {
+            Os.setsockoptInt(fd, IPPROTO_TCP, TCP_REPAIR, TCP_REPAIR_OFF);
+        } catch (ErrnoException e) {
+            Log.e(TAG, "Cannot switch socket out of repair mode", e);
+            // Well, there is not much to do here to recover
+        }
     }
 
     /**
@@ -262,17 +278,12 @@
             mListeners.remove(slot);
         }
         mFdHandlerQueue.removeOnFileDescriptorEventListener(fd);
-        try {
-            if (DBG) Log.d(TAG, "Moving socket out of repair mode for stop : " + fd);
-            switchOutOfRepairMode(fd);
-        } catch (ErrnoException e) {
-            Log.e(TAG, "Cannot switch socket out of repair mode", e);
-            // Well, there is not much to do here to recover
-        }
+        if (DBG) Log.d(TAG, "Moving socket out of repair mode for stop : " + fd);
+        switchOutOfRepairMode(fd);
     }
 
-    private static InetAddress getAddress(InetSocketAddress inetAddr) {
-        return inetAddr.getAddress();
+    private static byte [] getAddress(InetSocketAddress inetAddr) {
+        return inetAddr.getAddress().getAddress();
     }
 
     private static int getPort(InetSocketAddress inetAddr) {
diff --git a/services/core/java/com/android/server/connectivity/tethering/IPv6TetheringCoordinator.java b/services/core/java/com/android/server/connectivity/tethering/IPv6TetheringCoordinator.java
index 1000148..38eb0bc 100644
--- a/services/core/java/com/android/server/connectivity/tethering/IPv6TetheringCoordinator.java
+++ b/services/core/java/com/android/server/connectivity/tethering/IPv6TetheringCoordinator.java
@@ -17,7 +17,6 @@
 package com.android.server.connectivity.tethering;
 
 import android.net.ConnectivityManager;
-import android.net.ip.IpServer;
 import android.net.IpPrefix;
 import android.net.LinkAddress;
 import android.net.LinkProperties;
@@ -25,6 +24,7 @@
 import android.net.NetworkCapabilities;
 import android.net.NetworkState;
 import android.net.RouteInfo;
+import android.net.ip.IpServer;
 import android.net.util.NetworkConstants;
 import android.net.util.SharedLog;
 import android.util.Log;
@@ -191,7 +191,7 @@
         if (currentActive != null && currentActive.ipServer == ipServer) {
             final LinkProperties lp = getIPv6OnlyLinkProperties(
                     mUpstreamNetworkState.linkProperties);
-            if (lp.hasIPv6DefaultRoute() && lp.hasGlobalIPv6Address()) {
+            if (lp.hasIpv6DefaultRoute() && lp.hasGlobalIpv6Address()) {
                 return lp;
             }
         }
diff --git a/services/core/java/com/android/server/connectivity/tethering/TetheringInterfaceUtils.java b/services/core/java/com/android/server/connectivity/tethering/TetheringInterfaceUtils.java
index 6c7ff91..0ef3805 100644
--- a/services/core/java/com/android/server/connectivity/tethering/TetheringInterfaceUtils.java
+++ b/services/core/java/com/android/server/connectivity/tethering/TetheringInterfaceUtils.java
@@ -67,14 +67,14 @@
         // because "[t]he 3GPP network allocates each default bearer a unique
         // /64 prefix", per RFC 6459, Section 5.2.
         final boolean canTether =
-                (ns != null) && (ns.network != null) &&
-                (ns.linkProperties != null) && (ns.networkCapabilities != null) &&
+                (ns != null) && (ns.network != null)
+                && (ns.linkProperties != null) && (ns.networkCapabilities != null)
                 // At least one upstream DNS server:
-                ns.linkProperties.hasIPv6DnsServer() &&
+                && ns.linkProperties.hasIpv6DnsServer()
                 // Minimal amount of IPv6 provisioning:
-                ns.linkProperties.hasGlobalIPv6Address() &&
+                && ns.linkProperties.hasGlobalIpv6Address()
                 // Temporary approximation of "dedicated prefix":
-                ns.networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR);
+                && ns.networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR);
 
         return canTether
                 ? getInterfaceForDestination(ns.linkProperties, Inet6Address.ANY)
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index 2f510a7..790e6e1 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -2157,7 +2157,7 @@
             }
 
             if (allNewUsers && !update) {
-                notifyPackageAdded(packageName);
+                notifyPackageAdded(packageName, res.uid);
             }
 
             // Log current value of "unknown sources" setting
@@ -13728,7 +13728,7 @@
     }
 
     @Override
-    public void notifyPackageAdded(String packageName) {
+    public void notifyPackageAdded(String packageName, int uid) {
         final PackageListObserver[] observers;
         synchronized (mPackages) {
             if (mPackageListObservers.size() == 0) {
@@ -13739,12 +13739,12 @@
             observers = mPackageListObservers.toArray(observerArray);
         }
         for (int i = observers.length - 1; i >= 0; --i) {
-            observers[i].onPackageAdded(packageName);
+            observers[i].onPackageAdded(packageName, uid);
         }
     }
 
     @Override
-    public void notifyPackageRemoved(String packageName) {
+    public void notifyPackageRemoved(String packageName, int uid) {
         final PackageListObserver[] observers;
         synchronized (mPackages) {
             if (mPackageListObservers.size() == 0) {
@@ -13755,7 +13755,7 @@
             observers = mPackageListObservers.toArray(observerArray);
         }
         for (int i = observers.length - 1; i >= 0; --i) {
-            observers[i].onPackageRemoved(packageName);
+            observers[i].onPackageRemoved(packageName, uid);
         }
     }
 
@@ -18562,7 +18562,8 @@
                 return;
             }
             Bundle extras = new Bundle(2);
-            extras.putInt(Intent.EXTRA_UID, removedAppId >= 0  ? removedAppId : uid);
+            final int removedUid = removedAppId >= 0  ? removedAppId : uid;
+            extras.putInt(Intent.EXTRA_UID, removedUid);
             extras.putBoolean(Intent.EXTRA_DATA_REMOVED, dataRemoved);
             extras.putBoolean(Intent.EXTRA_DONT_KILL_APP, !killApp);
             if (isUpdate || isRemovedPackageSystemUpdate) {
@@ -18583,7 +18584,7 @@
                         removedPackage, extras,
                         Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND,
                         null, null, broadcastUsers, instantUserIds);
-                    packageSender.notifyPackageRemoved(removedPackage);
+                    packageSender.notifyPackageRemoved(removedPackage, removedUid);
                 }
             }
             if (removedAppId >= 0) {
@@ -24946,6 +24947,6 @@
         final IIntentReceiver finishedReceiver, final int[] userIds, int[] instantUserIds);
     void sendPackageAddedForNewUsers(String packageName, boolean sendBootCompleted,
         boolean includeStopped, int appId, int[] userIds, int[] instantUserIds);
-    void notifyPackageAdded(String packageName);
-    void notifyPackageRemoved(String packageName);
+    void notifyPackageAdded(String packageName, int uid);
+    void notifyPackageRemoved(String packageName, int uid);
 }
diff --git a/core/java/android/net/TcpKeepalivePacketData.java b/services/net/java/android/net/TcpKeepalivePacketData.java
similarity index 78%
rename from core/java/android/net/TcpKeepalivePacketData.java
rename to services/net/java/android/net/TcpKeepalivePacketData.java
index f07dfb6..d79ad1f 100644
--- a/core/java/android/net/TcpKeepalivePacketData.java
+++ b/services/net/java/android/net/TcpKeepalivePacketData.java
@@ -25,8 +25,8 @@
 import android.os.Parcelable;
 import android.system.OsConstants;
 
-import java.net.Inet4Address;
 import java.net.InetAddress;
+import java.net.UnknownHostException;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.util.Objects;
@@ -56,10 +56,10 @@
 
     // This should only be constructed via static factory methods, such as
     // tcpKeepalivePacket.
-    private TcpKeepalivePacketData(TcpSocketInfo tcpDetails, byte[] data)
-            throws InvalidPacketException {
-        super(tcpDetails.srcAddress, tcpDetails.srcPort, tcpDetails.dstAddress,
-                tcpDetails.dstPort, data);
+    private TcpKeepalivePacketData(final TcpKeepalivePacketDataParcelable tcpDetails,
+            final byte[] data) throws InvalidPacketException, UnknownHostException {
+        super(InetAddress.getByAddress(tcpDetails.srcAddress), tcpDetails.srcPort,
+                InetAddress.getByAddress(tcpDetails.dstAddress), tcpDetails.dstPort, data);
         tcpSeq = tcpDetails.seq;
         tcpAck = tcpDetails.ack;
         // In the packet, the window is shifted right by the window scale.
@@ -71,17 +71,22 @@
      * Factory method to create tcp keepalive packet structure.
      */
     public static TcpKeepalivePacketData tcpKeepalivePacket(
-            TcpSocketInfo tcpDetails) throws InvalidPacketException {
+            TcpKeepalivePacketDataParcelable tcpDetails) throws InvalidPacketException {
         final byte[] packet;
-        if ((tcpDetails.srcAddress instanceof Inet4Address)
-                && (tcpDetails.dstAddress instanceof Inet4Address)) {
-            packet = buildV4Packet(tcpDetails);
-        } else {
-            // TODO: support ipv6
+        try {
+            if ((tcpDetails.srcAddress != null) && (tcpDetails.dstAddress != null)
+                    && (tcpDetails.srcAddress.length == 4 /* V4 IP length */)
+                    && (tcpDetails.dstAddress.length == 4 /* V4 IP length */)) {
+                packet = buildV4Packet(tcpDetails);
+            } else {
+                // TODO: support ipv6
+                throw new InvalidPacketException(ERROR_INVALID_IP_ADDRESS);
+            }
+            return new TcpKeepalivePacketData(tcpDetails, packet);
+        } catch (UnknownHostException e) {
             throw new InvalidPacketException(ERROR_INVALID_IP_ADDRESS);
         }
 
-        return new TcpKeepalivePacketData(tcpDetails, packet);
     }
 
     /**
@@ -89,7 +94,7 @@
      */
     // TODO : if this code is ever moved to the network stack, factorize constants with the ones
     // over there.
-    private static byte[] buildV4Packet(TcpSocketInfo tcpDetails) {
+    private static byte[] buildV4Packet(TcpKeepalivePacketDataParcelable tcpDetails) {
         final int length = IPV4_HEADER_LENGTH + TCP_HEADER_LENGTH;
         ByteBuffer buf = ByteBuffer.allocate(length);
         buf.order(ByteOrder.BIG_ENDIAN);
@@ -102,8 +107,8 @@
         buf.put((byte) OsConstants.IPPROTO_TCP);
         final int ipChecksumOffset = buf.position();
         buf.putShort((short) 0);                    // IP checksum
-        buf.put(tcpDetails.srcAddress.getAddress());
-        buf.put(tcpDetails.dstAddress.getAddress());
+        buf.put(tcpDetails.srcAddress);
+        buf.put(tcpDetails.dstAddress);
         buf.putShort((short) tcpDetails.srcPort);
         buf.putShort((short) tcpDetails.dstPort);
         buf.putInt(tcpDetails.seq);                 // Sequence Number
@@ -122,31 +127,6 @@
 
     // TODO: add buildV6Packet.
 
-    /** Represents tcp/ip information. */
-    // TODO: Replace TcpSocketInfo with TcpKeepalivePacketDataParcelable.
-    public static class TcpSocketInfo {
-        public final InetAddress srcAddress;
-        public final InetAddress dstAddress;
-        public final int srcPort;
-        public final int dstPort;
-        public final int seq;
-        public final int ack;
-        public final int rcvWnd;
-        public final int rcvWndScale;
-
-        public TcpSocketInfo(InetAddress sAddr, int sPort, InetAddress dAddr,
-                int dPort, int writeSeq, int readSeq, int rWnd, int rWndScale) {
-            srcAddress = sAddr;
-            dstAddress = dAddr;
-            srcPort = sPort;
-            dstPort = dPort;
-            seq = writeSeq;
-            ack = readSeq;
-            rcvWnd = rWnd;
-            rcvWndScale = rWndScale;
-        }
-    }
-
     @Override
     public boolean equals(@Nullable final Object o) {
         if (!(o instanceof TcpKeepalivePacketData)) return false;
@@ -167,8 +147,9 @@
                 tcpWndScale);
     }
 
-    /* Parcelable Implementation. */
-    /* Note that this object implements parcelable (and needs to keep doing this as it inherits
+    /**
+     * Parcelable Implementation.
+     * Note that this object implements parcelable (and needs to keep doing this as it inherits
      * from a class that does), but should usually be parceled as a stable parcelable using
      * the toStableParcelable() and fromStableParcelable() methods.
      */
@@ -194,7 +175,7 @@
     }
 
     /** Parcelable Creator. */
-    public static final Parcelable.Creator<TcpKeepalivePacketData> CREATOR =
+    public static final @NonNull Parcelable.Creator<TcpKeepalivePacketData> CREATOR =
             new Parcelable.Creator<TcpKeepalivePacketData>() {
                 public TcpKeepalivePacketData createFromParcel(Parcel in) {
                     return new TcpKeepalivePacketData(in);
@@ -217,6 +198,8 @@
         parcel.dstPort = dstPort;
         parcel.seq = tcpSeq;
         parcel.ack = tcpAck;
+        parcel.rcvWnd = tcpWnd;
+        parcel.rcvWndScale = tcpWndScale;
         return parcel;
     }
 
diff --git a/services/net/java/android/net/ip/IpServer.java b/services/net/java/android/net/ip/IpServer.java
index 0e44f88..fc1128b 100644
--- a/services/net/java/android/net/ip/IpServer.java
+++ b/services/net/java/android/net/ip/IpServer.java
@@ -506,7 +506,7 @@
         if (v6only != null) {
             params = new RaParams();
             params.mtu = v6only.getMtu();
-            params.hasDefaultRoute = v6only.hasIPv6DefaultRoute();
+            params.hasDefaultRoute = v6only.hasIpv6DefaultRoute();
 
             if (params.hasDefaultRoute) params.hopLimit = getHopLimit(v6only.getInterfaceName());
 
diff --git a/services/net/java/android/net/shared/InitialConfiguration.java b/services/net/java/android/net/shared/InitialConfiguration.java
index e423d62..007c8ca9 100644
--- a/services/net/java/android/net/shared/InitialConfiguration.java
+++ b/services/net/java/android/net/shared/InitialConfiguration.java
@@ -207,7 +207,7 @@
     }
 
     private static boolean isIPv6GUA(LinkAddress addr) {
-        return addr.isIPv6() && addr.isGlobalPreferred();
+        return addr.isIpv6() && addr.isGlobalPreferred();
     }
 
     // TODO: extract out into CollectionUtils.
diff --git a/services/tests/servicestests/src/com/android/server/pm/PackageManagerServiceTest.java b/services/tests/servicestests/src/com/android/server/pm/PackageManagerServiceTest.java
index e379cd0..68728af 100644
--- a/services/tests/servicestests/src/com/android/server/pm/PackageManagerServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/pm/PackageManagerServiceTest.java
@@ -56,11 +56,11 @@
             }
 
             @Override
-            public void notifyPackageAdded(String packageName) {
+            public void notifyPackageAdded(String packageName, int uid) {
             }
 
             @Override
-            public void notifyPackageRemoved(String packageName) {
+            public void notifyPackageRemoved(String packageName, int uid) {
             }
         }
 
diff --git a/startop/view_compiler/Android.bp b/startop/view_compiler/Android.bp
index f5b4308..92ea872 100644
--- a/startop/view_compiler/Android.bp
+++ b/startop/view_compiler/Android.bp
@@ -22,7 +22,6 @@
     ],
     shared_libs: [
         "libbase",
-        "libz",
         "slicer",
     ],
     static_libs: [
diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index 3454c1c..bafec5c 100755
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -2454,6 +2454,18 @@
      */
     public static final String KEY_OPPORTUNISTIC_NETWORK_DATA_SWITCH_HYSTERESIS_TIME_LONG =
             "opportunistic_network_data_switch_hysteresis_time_long";
+
+    /**
+     * Indicates zero or more emergency number prefix(es), because some carrier requires
+     * if users dial an emergency number address with a specific prefix, the combination of the
+     * prefix and the address is also a valid emergency number to dial. For example, an emergency
+     * number prefix is 318, and the emergency number is 911. Both 318911 and 911 can be dialed by
+     * users for emergency call. An empty array of string indicates that current carrier does not
+     * have this requirement.
+     */
+    public static final String KEY_EMERGENCY_NUMBER_PREFIX_STRING_ARRAY =
+            "emergency_number_prefix_string_array";
+
     /**
      * Determines whether the carrier wants to cancel the cs reject notification automatically
      * when the voice registration state changes.
@@ -2884,6 +2896,7 @@
                 new int[] {
                         1 /* Roaming Indicator Off */
                 });
+        sDefaults.putStringArray(KEY_EMERGENCY_NUMBER_PREFIX_STRING_ARRAY, new String[0]);
         sDefaults.putString(KEY_5G_ICON_CONFIGURATION_STRING,
                 "connected_mmwave:None,connected:5G,not_restricted:None,restricted:None");
         sDefaults.putBoolean(KEY_AUTO_CANCEL_CS_REJECT_NOTIFICATION, false);
diff --git a/telephony/java/android/telephony/CellIdentityNr.java b/telephony/java/android/telephony/CellIdentityNr.java
index b94ca9b..771e7b9 100644
--- a/telephony/java/android/telephony/CellIdentityNr.java
+++ b/telephony/java/android/telephony/CellIdentityNr.java
@@ -16,13 +16,15 @@
 
 package android.telephony;
 
+import android.annotation.IntRange;
+import android.annotation.Nullable;
 import android.os.Parcel;
 import android.telephony.gsm.GsmCellLocation;
 
 import java.util.Objects;
 
 /**
- * Information to represent a unique 5G NR cell.
+ * Information to represent a unique NR(New Radio 5G) cell.
  */
 public final class CellIdentityNr extends CellIdentity {
     private static final String TAG = "CellIdentityNr";
@@ -79,7 +81,7 @@
     }
 
     /**
-     * Get the NR Cell Identity.
+     * Get the NR(New Radio 5G) Cell Identity.
      *
      * @return The 36-bit NR Cell Identity in range [0, 68719476735] or
      *         {@link CellInfo#UNAVAILABLE_LONG} if unknown.
@@ -96,6 +98,7 @@
      *
      * @return Integer value in range [0, 3279165] or {@link CellInfo#UNAVAILABLE} if unknown.
      */
+    @IntRange(from = 0, to = 3279165)
     public int getNrarfcn() {
         return mNrArfcn;
     }
@@ -104,6 +107,7 @@
      * Get the physical cell id.
      * @return Integer value in range [0, 1007] or {@link CellInfo#UNAVAILABLE} if unknown.
      */
+    @IntRange(from = 0, to = 1007)
     public int getPci() {
         return mPci;
     }
@@ -112,6 +116,7 @@
      * Get the tracking area code.
      * @return a 16 bit integer or {@link CellInfo#UNAVAILABLE} if unknown.
      */
+    @IntRange(from = 0, to = 65535)
     public int getTac() {
         return mTac;
     }
@@ -119,6 +124,7 @@
     /**
      * @return Mobile Country Code in string format, or {@code null} if unknown.
      */
+    @Nullable
     public String getMccString() {
         return mMccStr;
     }
@@ -126,6 +132,7 @@
     /**
      * @return Mobile Network Code in string fomrat, or {@code null} if unknown.
      */
+    @Nullable
     public String getMncString() {
         return mMncStr;
     }
diff --git a/telephony/java/android/telephony/CellInfoNr.java b/telephony/java/android/telephony/CellInfoNr.java
index 11857a6..7f7902c 100644
--- a/telephony/java/android/telephony/CellInfoNr.java
+++ b/telephony/java/android/telephony/CellInfoNr.java
@@ -16,6 +16,7 @@
 
 package android.telephony;
 
+import android.annotation.NonNull;
 import android.os.Parcel;
 
 import java.util.Objects;
@@ -36,11 +37,13 @@
     }
 
     @Override
+    @NonNull
     public CellIdentity getCellIdentity() {
         return mCellIdentity;
     }
 
     @Override
+    @NonNull
     public CellSignalStrength getCellSignalStrength() {
         return mCellSignalStrength;
     }
diff --git a/telephony/java/android/telephony/INetworkService.aidl b/telephony/java/android/telephony/INetworkService.aidl
index 9ef7186..67e5650 100644
--- a/telephony/java/android/telephony/INetworkService.aidl
+++ b/telephony/java/android/telephony/INetworkService.aidl
@@ -25,7 +25,7 @@
 {
     void createNetworkServiceProvider(int slotId);
     void removeNetworkServiceProvider(int slotId);
-    void getNetworkRegistrationState(int slotId, int domain, INetworkServiceCallback callback);
-    void registerForNetworkRegistrationStateChanged(int slotId, INetworkServiceCallback callback);
-    void unregisterForNetworkRegistrationStateChanged(int slotId, INetworkServiceCallback callback);
+    void getNetworkRegistrationInfo(int slotId, int domain, INetworkServiceCallback callback);
+    void registerForNetworkRegistrationInfoChanged(int slotId, INetworkServiceCallback callback);
+    void unregisterForNetworkRegistrationInfoChanged(int slotId, INetworkServiceCallback callback);
 }
diff --git a/telephony/java/android/telephony/INetworkServiceCallback.aidl b/telephony/java/android/telephony/INetworkServiceCallback.aidl
index 520598f..33b3ac0 100644
--- a/telephony/java/android/telephony/INetworkServiceCallback.aidl
+++ b/telephony/java/android/telephony/INetworkServiceCallback.aidl
@@ -16,7 +16,7 @@
 
 package android.telephony;
 
-import android.telephony.NetworkRegistrationState;
+import android.telephony.NetworkRegistrationInfo;
 
 /**
  * Network service call back interface
@@ -24,6 +24,6 @@
  */
 oneway interface INetworkServiceCallback
 {
-    void onGetNetworkRegistrationStateComplete(int result, in NetworkRegistrationState state);
+    void onGetNetworkRegistrationInfoComplete(int result, in NetworkRegistrationInfo state);
     void onNetworkStateChanged();
 }
diff --git a/telephony/java/android/telephony/NetworkRegistrationState.aidl b/telephony/java/android/telephony/NetworkRegistrationInfo.aidl
similarity index 94%
rename from telephony/java/android/telephony/NetworkRegistrationState.aidl
rename to telephony/java/android/telephony/NetworkRegistrationInfo.aidl
index 98cba77..5c803bf 100644
--- a/telephony/java/android/telephony/NetworkRegistrationState.aidl
+++ b/telephony/java/android/telephony/NetworkRegistrationInfo.aidl
@@ -16,4 +16,4 @@
 
 package android.telephony;
 
-parcelable NetworkRegistrationState;
+parcelable NetworkRegistrationInfo;
diff --git a/telephony/java/android/telephony/NetworkRegistrationState.java b/telephony/java/android/telephony/NetworkRegistrationInfo.java
similarity index 62%
rename from telephony/java/android/telephony/NetworkRegistrationState.java
rename to telephony/java/android/telephony/NetworkRegistrationInfo.java
index 74f200b..9145b25 100644
--- a/telephony/java/android/telephony/NetworkRegistrationState.java
+++ b/telephony/java/android/telephony/NetworkRegistrationInfo.java
@@ -27,16 +27,18 @@
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
-import java.util.Arrays;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
 import java.util.Objects;
 import java.util.stream.Collectors;
 
 /**
- * Description of a mobile network registration state
+ * Description of a mobile network registration info
  * @hide
  */
 @SystemApi
-public class NetworkRegistrationState implements Parcelable {
+public final class NetworkRegistrationInfo implements Parcelable {
     /**
      * Network domain
      * @hide
@@ -51,41 +53,42 @@
     public static final int DOMAIN_PS = 2;
 
     /**
-     * Registration state
+     * Network registration state
      * @hide
      */
     @Retention(RetentionPolicy.SOURCE)
-    @IntDef(prefix = "REG_STATE_",
-            value = {REG_STATE_NOT_REG_NOT_SEARCHING, REG_STATE_HOME, REG_STATE_NOT_REG_SEARCHING,
-                    REG_STATE_DENIED, REG_STATE_UNKNOWN, REG_STATE_ROAMING})
-    public @interface RegState {}
+    @IntDef(prefix = "REGISTRATION_STATE_",
+            value = {REGISTRATION_STATE_NOT_REGISTERED_OR_SEARCHING, REGISTRATION_STATE_HOME,
+                    REGISTRATION_STATE_NOT_REGISTERED_SEARCHING, REGISTRATION_STATE_DENIED,
+                    REGISTRATION_STATE_UNKNOWN, REGISTRATION_STATE_ROAMING})
+    public @interface RegistrationState {}
 
-    /** Not registered. The device is not currently searching a new operator to register */
-    public static final int REG_STATE_NOT_REG_NOT_SEARCHING = 0;
-    /** Registered on home network */
-    public static final int REG_STATE_HOME                  = 1;
-    /** Not registered. The device is currently searching a new operator to register */
-    public static final int REG_STATE_NOT_REG_SEARCHING     = 2;
-    /** Registration denied */
-    public static final int REG_STATE_DENIED                = 3;
-    /** Registration state is unknown */
-    public static final int REG_STATE_UNKNOWN               = 4;
-    /** Registered on roaming network */
-    public static final int REG_STATE_ROAMING               = 5;
+    /** Not registered. The device is not currently searching a new operator to register. */
+    public static final int REGISTRATION_STATE_NOT_REGISTERED_OR_SEARCHING = 0;
+    /** Registered on home network. */
+    public static final int REGISTRATION_STATE_HOME = 1;
+    /** Not registered. The device is currently searching a new operator to register. */
+    public static final int REGISTRATION_STATE_NOT_REGISTERED_SEARCHING = 2;
+    /** Registration denied. */
+    public static final int REGISTRATION_STATE_DENIED = 3;
+    /** Registration state is unknown. */
+    public static final int REGISTRATION_STATE_UNKNOWN = 4;
+    /** Registered on roaming network. */
+    public static final int REGISTRATION_STATE_ROAMING = 5;
 
     /** @hide */
     @Retention(RetentionPolicy.SOURCE)
-    @IntDef(prefix = "NR_STATUS_",
-            value = {NR_STATUS_NONE, NR_STATUS_RESTRICTED, NR_STATUS_NOT_RESTRICTED,
-                    NR_STATUS_CONNECTED})
-    public @interface NRStatus {}
+    @IntDef(prefix = "NR_STATE_",
+            value = {NR_STATE_NONE, NR_STATE_RESTRICTED, NR_STATE_NOT_RESTRICTED,
+                    NR_STATE_CONNECTED})
+    public @interface NRState {}
 
     /**
      * The device isn't camped on an LTE cell or the LTE cell doesn't support E-UTRA-NR
      * Dual Connectivity(EN-DC).
      * @hide
      */
-    public static final int NR_STATUS_NONE = -1;
+    public static final int NR_STATE_NONE = -1;
 
     /**
      * The device is camped on an LTE cell that supports E-UTRA-NR Dual Connectivity(EN-DC) but
@@ -93,7 +96,7 @@
      * the selected PLMN.
      * @hide
      */
-    public static final int NR_STATUS_RESTRICTED = 1;
+    public static final int NR_STATE_RESTRICTED = 1;
 
     /**
      * The device is camped on an LTE cell that supports E-UTRA-NR Dual Connectivity(EN-DC) and both
@@ -101,14 +104,14 @@
      * selected PLMN.
      * @hide
      */
-    public static final int NR_STATUS_NOT_RESTRICTED = 2;
+    public static final int NR_STATE_NOT_RESTRICTED = 2;
 
     /**
      * The device is camped on an LTE cell that supports E-UTRA-NR Dual Connectivity(EN-DC) and
      * also connected to at least one 5G cell as a secondary serving cell.
      * @hide
      */
-    public static final int NR_STATUS_CONNECTED = 3;
+    public static final int NR_STATE_CONNECTED = 3;
 
     /**
      * Supported service type
@@ -116,23 +119,36 @@
      */
     @Retention(RetentionPolicy.SOURCE)
     @IntDef(prefix = "SERVICE_TYPE_",
-            value = {SERVICE_TYPE_VOICE, SERVICE_TYPE_DATA, SERVICE_TYPE_SMS, SERVICE_TYPE_VIDEO,
-                    SERVICE_TYPE_EMERGENCY})
+            value = {SERVICE_TYPE_UNKNOWN, SERVICE_TYPE_VOICE, SERVICE_TYPE_DATA, SERVICE_TYPE_SMS,
+                    SERVICE_TYPE_VIDEO, SERVICE_TYPE_EMERGENCY})
     public @interface ServiceType {}
 
+    /** Unkown service */
+    public static final int SERVICE_TYPE_UNKNOWN    = 0;
+
+    /** Voice service */
     public static final int SERVICE_TYPE_VOICE      = 1;
+
+    /** Data service */
     public static final int SERVICE_TYPE_DATA       = 2;
+
+    /** SMS service */
     public static final int SERVICE_TYPE_SMS        = 3;
+
+    /** Video service */
     public static final int SERVICE_TYPE_VIDEO      = 4;
+
+    /** Emergency service */
     public static final int SERVICE_TYPE_EMERGENCY  = 5;
 
     @Domain
     private final int mDomain;
 
+    @TransportType
     private final int mTransportType;
 
-    @RegState
-    private final int mRegState;
+    @RegistrationState
+    private final int mRegistrationState;
 
     /**
      * Save the {@link ServiceState.RoamingType roaming type}. it can be overridden roaming type
@@ -144,15 +160,15 @@
     @NetworkType
     private int mAccessNetworkTechnology;
 
-    @NRStatus
-    private int mNrStatus;
+    @NRState
+    private int mNrState;
 
     private final int mRejectCause;
 
     private final boolean mEmergencyOnly;
 
     @ServiceType
-    private final int[] mAvailableServices;
+    private final ArrayList<Integer> mAvailableServices;
 
     @Nullable
     private CellIdentity mCellIdentity;
@@ -167,95 +183,103 @@
      * @param domain Network domain. Must be a {@link Domain}. For transport type
      * {@link AccessNetworkConstants#TRANSPORT_TYPE_WLAN}, this must set to {@link #DOMAIN_PS}.
      * @param transportType Transport type.
-     * @param regState Network registration state. Must be one of the {@link RegState}. For
-     * transport type {@link AccessNetworkConstants#TRANSPORT_TYPE_WLAN}, only
-     * {@link #REG_STATE_HOME} and {@link #REG_STATE_NOT_REG_NOT_SEARCHING} are valid states.
+     * @param registrationState Network registration state. For transport type
+     * {@link AccessNetworkConstants#TRANSPORT_TYPE_WLAN}, only
+     * {@link #REGISTRATION_STATE_HOME} and {@link #REGISTRATION_STATE_NOT_REGISTERED_OR_SEARCHING}
+     * are valid states.
      * @param accessNetworkTechnology Access network technology.For transport type
      * {@link AccessNetworkConstants#TRANSPORT_TYPE_WLAN}, set to
      * {@link TelephonyManager#NETWORK_TYPE_IWLAN}.
-     * @param rejectCause Reason for denial if the registration state is {@link #REG_STATE_DENIED}.
-     * Depending on {@code accessNetworkTechnology}, the values are defined in 3GPP TS 24.008
-     * 10.5.3.6 for UMTS, 3GPP TS 24.301 9.9.3.9 for LTE, and 3GPP2 A.S0001 6.2.2.44 for CDMA. If
-     * the reject cause is not supported or unknown, set it to 0.
+     * @param rejectCause Reason for denial if the registration state is
+     * {@link #REGISTRATION_STATE_DENIED}. Depending on {@code accessNetworkTechnology}, the values
+     * are defined in 3GPP TS 24.008 10.5.3.6 for UMTS, 3GPP TS 24.301 9.9.3.9 for LTE, and 3GPP2
+     * A.S0001 6.2.2.44 for CDMA. If the reject cause is not supported or unknown, set it to 0.
      * // TODO: Add IWLAN reject cause reference
      * @param emergencyOnly True if this registration is for emergency only.
-     * @param availableServices The list of the supported services. Each element must be one of
-     * the {@link ServiceType}.
+     * @param availableServices The list of the supported services.
      * @param cellIdentity The identity representing a unique cell or wifi AP. Set to null if the
      * information is not available.
      */
-    public NetworkRegistrationState(@Domain int domain, @TransportType int transportType,
-                                    @RegState int regState,
-                                    @NetworkType int accessNetworkTechnology, int rejectCause,
-                                    boolean emergencyOnly,
-                                    @NonNull @ServiceType int[] availableServices,
-                                    @Nullable CellIdentity cellIdentity) {
+    private NetworkRegistrationInfo(@Domain int domain, @TransportType int transportType,
+                                   @RegistrationState int registrationState,
+                                   @NetworkType int accessNetworkTechnology, int rejectCause,
+                                   boolean emergencyOnly,
+                                   @Nullable @ServiceType List<Integer> availableServices,
+                                   @Nullable CellIdentity cellIdentity) {
         mDomain = domain;
         mTransportType = transportType;
-        mRegState = regState;
-        mRoamingType = (regState == REG_STATE_ROAMING)
+        mRegistrationState = registrationState;
+        mRoamingType = (registrationState == REGISTRATION_STATE_ROAMING)
                 ? ServiceState.ROAMING_TYPE_UNKNOWN : ServiceState.ROAMING_TYPE_NOT_ROAMING;
         mAccessNetworkTechnology = accessNetworkTechnology;
         mRejectCause = rejectCause;
-        mAvailableServices = availableServices;
+        mAvailableServices = (availableServices != null)
+                ? new ArrayList<>(availableServices) : new ArrayList<>();
         mCellIdentity = cellIdentity;
         mEmergencyOnly = emergencyOnly;
-        mNrStatus = NR_STATUS_NONE;
+        mNrState = NR_STATE_NONE;
     }
 
     /**
-     * Constructor for voice network registration states.
+     * Constructor for voice network registration info.
      * @hide
      */
-    public NetworkRegistrationState(int domain, @TransportType int transportType, int regState,
-            int accessNetworkTechnology, int rejectCause, boolean emergencyOnly,
-            int[] availableServices, @Nullable CellIdentity cellIdentity, boolean cssSupported,
-            int roamingIndicator, int systemIsInPrl, int defaultRoamingIndicator) {
-        this(domain, transportType, regState, accessNetworkTechnology, rejectCause, emergencyOnly,
-                availableServices, cellIdentity);
+    public NetworkRegistrationInfo(int domain, @TransportType int transportType,
+                                   int registrationState, int accessNetworkTechnology,
+                                   int rejectCause, boolean emergencyOnly,
+                                   @Nullable List<Integer> availableServices,
+                                   @Nullable CellIdentity cellIdentity, boolean cssSupported,
+                                   int roamingIndicator, int systemIsInPrl,
+                                   int defaultRoamingIndicator) {
+        this(domain, transportType, registrationState, accessNetworkTechnology, rejectCause,
+                emergencyOnly, availableServices, cellIdentity);
 
         mVoiceSpecificStates = new VoiceSpecificRegistrationStates(cssSupported, roamingIndicator,
                 systemIsInPrl, defaultRoamingIndicator);
     }
 
     /**
-     * Constructor for data network registration states.
+     * Constructor for data network registration info.
      * @hide
      */
-    public NetworkRegistrationState(int domain, @TransportType int transportType, int regState,
-            int accessNetworkTechnology, int rejectCause, boolean emergencyOnly,
-            int[] availableServices, @Nullable CellIdentity cellIdentity, int maxDataCalls,
-            boolean isDcNrRestricted, boolean isNrAvailable, boolean isEndcAvailable,
-            LteVopsSupportInfo lteVopsSupportInfo) {
-        this(domain, transportType, regState, accessNetworkTechnology, rejectCause, emergencyOnly,
-                availableServices, cellIdentity);
+    public NetworkRegistrationInfo(int domain, @TransportType int transportType,
+                                   int registrationState, int accessNetworkTechnology,
+                                   int rejectCause, boolean emergencyOnly,
+                                   @Nullable List<Integer> availableServices,
+                                   @Nullable CellIdentity cellIdentity, int maxDataCalls,
+                                   boolean isDcNrRestricted, boolean isNrAvailable,
+                                   boolean isEndcAvailable,
+                                   LteVopsSupportInfo lteVopsSupportInfo) {
+        this(domain, transportType, registrationState, accessNetworkTechnology, rejectCause,
+                emergencyOnly, availableServices, cellIdentity);
 
         mDataSpecificStates = new DataSpecificRegistrationStates(
                 maxDataCalls, isDcNrRestricted, isNrAvailable, isEndcAvailable, lteVopsSupportInfo);
-        updateNrStatus(mDataSpecificStates);
+        updateNrState(mDataSpecificStates);
     }
 
-    private NetworkRegistrationState(Parcel source) {
+    private NetworkRegistrationInfo(Parcel source) {
         mDomain = source.readInt();
         mTransportType = source.readInt();
-        mRegState = source.readInt();
+        mRegistrationState = source.readInt();
         mRoamingType = source.readInt();
         mAccessNetworkTechnology = source.readInt();
         mRejectCause = source.readInt();
         mEmergencyOnly = source.readBoolean();
-        mAvailableServices = source.createIntArray();
+        mAvailableServices = new ArrayList<>();
+        source.readList(mAvailableServices, Integer.class.getClassLoader());
         mCellIdentity = source.readParcelable(CellIdentity.class.getClassLoader());
         mVoiceSpecificStates = source.readParcelable(
                 VoiceSpecificRegistrationStates.class.getClassLoader());
         mDataSpecificStates = source.readParcelable(
                 DataSpecificRegistrationStates.class.getClassLoader());
-        mNrStatus = source.readInt();
+        mNrState = source.readInt();
     }
 
     /**
      * @return The transport type.
      */
-    public int getTransportType() { return mTransportType; }
+    public @TransportType int getTransportType() { return mTransportType; }
 
     /**
      * @return The network domain.
@@ -263,23 +287,23 @@
     public @Domain int getDomain() { return mDomain; }
 
     /**
-     * @return the 5G NR connection status.
+     * @return the 5G NR connection state.
      * @hide
      */
-    public @NRStatus int getNrStatus() {
-        return mNrStatus;
+    public @NRState int getNrState() {
+        return mNrState;
     }
 
     /** @hide */
-    public void setNrStatus(@NRStatus int nrStatus) {
-        mNrStatus = nrStatus;
+    public void setNrState(@NRState int nrState) {
+        mNrState = nrState;
     }
 
     /**
      * @return The registration state.
      */
-    public @RegState int getRegState() {
-        return mRegState;
+    public @RegistrationState int getRegistrationState() {
+        return mRegistrationState;
     }
 
     /**
@@ -294,7 +318,8 @@
      * @return {@code true} if in service.
      */
     public boolean isInService() {
-        return mRegState == REG_STATE_HOME || mRegState == REG_STATE_ROAMING;
+        return mRegistrationState == REGISTRATION_STATE_HOME
+                || mRegistrationState == REGISTRATION_STATE_ROAMING;
     }
 
     /**
@@ -324,7 +349,9 @@
      */
     @NonNull
     @ServiceType
-    public int[] getAvailableServices() { return mAvailableServices; }
+    public List<Integer> getAvailableServices() {
+        return Collections.unmodifiableList(mAvailableServices);
+    }
 
     /**
      * @return The access network technology {@link NetworkType}.
@@ -342,7 +369,7 @@
     }
 
     /**
-     * @return Reason for denial if the registration state is {@link #REG_STATE_DENIED}.
+     * @return Reason for denial if the registration state is {@link #REGISTRATION_STATE_DENIED}.
      * Depending on {@code accessNetworkTechnology}, the values are defined in 3GPP TS 24.008
      * 10.5.3.6 for UMTS, 3GPP TS 24.301 9.9.3.9 for LTE, and 3GPP2 A.S0001 6.2.2.44 for CDMA
      */
@@ -403,28 +430,28 @@
      *
      * @hide
      *
-     * @param regState The registration state
+     * @param registrationState The registration state
      * @return The reg state in string
      */
-    public static String regStateToString(@RegState int regState) {
-        switch (regState) {
-            case REG_STATE_NOT_REG_NOT_SEARCHING: return "NOT_REG_NOT_SEARCHING";
-            case REG_STATE_HOME: return "HOME";
-            case REG_STATE_NOT_REG_SEARCHING: return "NOT_REG_SEARCHING";
-            case REG_STATE_DENIED: return "DENIED";
-            case REG_STATE_UNKNOWN: return "UNKNOWN";
-            case REG_STATE_ROAMING: return "ROAMING";
+    public static String registrationStateToString(@RegistrationState int registrationState) {
+        switch (registrationState) {
+            case REGISTRATION_STATE_NOT_REGISTERED_OR_SEARCHING: return "NOT_REG_OR_SEARCHING";
+            case REGISTRATION_STATE_HOME: return "HOME";
+            case REGISTRATION_STATE_NOT_REGISTERED_SEARCHING: return "NOT_REG_SEARCHING";
+            case REGISTRATION_STATE_DENIED: return "DENIED";
+            case REGISTRATION_STATE_UNKNOWN: return "UNKNOWN";
+            case REGISTRATION_STATE_ROAMING: return "ROAMING";
         }
-        return "Unknown reg state " + regState;
+        return "Unknown reg state " + registrationState;
     }
 
-    private static String nrStatusToString(@NRStatus int nrStatus) {
-        switch (nrStatus) {
-            case NR_STATUS_RESTRICTED:
+    private static String nrStateToString(@NRState int nrState) {
+        switch (nrState) {
+            case NR_STATE_RESTRICTED:
                 return "RESTRICTED";
-            case NR_STATUS_NOT_RESTRICTED:
+            case NR_STATE_NOT_RESTRICTED:
                 return "NOT_RESTRICTED";
-            case NR_STATUS_CONNECTED:
+            case NR_STATE_CONNECTED:
                 return "CONNECTED";
             default:
                 return "NONE";
@@ -433,76 +460,75 @@
 
     @Override
     public String toString() {
-        return new StringBuilder("NetworkRegistrationState{")
+        return new StringBuilder("NetworkRegistrationInfo{")
                 .append(" domain=").append((mDomain == DOMAIN_CS) ? "CS" : "PS")
                 .append(" transportType=").append(
                         AccessNetworkConstants.transportTypeToString(mTransportType))
-                .append(" regState=").append(regStateToString(mRegState))
+                .append(" registrationState=").append(registrationStateToString(mRegistrationState))
                 .append(" roamingType=").append(ServiceState.roamingTypeToString(mRoamingType))
                 .append(" accessNetworkTechnology=")
                 .append(TelephonyManager.getNetworkTypeName(mAccessNetworkTechnology))
                 .append(" rejectCause=").append(mRejectCause)
                 .append(" emergencyEnabled=").append(mEmergencyOnly)
                 .append(" availableServices=").append("[" + (mAvailableServices != null
-                        ? Arrays.stream(mAvailableServices)
-                        .mapToObj(type -> serviceTypeToString(type))
+                        ? mAvailableServices.stream().map(type -> serviceTypeToString(type))
                         .collect(Collectors.joining(",")) : null) + "]")
                 .append(" cellIdentity=").append(mCellIdentity)
                 .append(" voiceSpecificStates=").append(mVoiceSpecificStates)
                 .append(" dataSpecificStates=").append(mDataSpecificStates)
-                .append(" nrStatus=").append(nrStatusToString(mNrStatus))
+                .append(" nrState=").append(nrStateToString(mNrState))
                 .append("}").toString();
     }
 
     @Override
     public int hashCode() {
-        return Objects.hash(mDomain, mTransportType, mRegState, mRoamingType,
+        return Objects.hash(mDomain, mTransportType, mRegistrationState, mRoamingType,
                 mAccessNetworkTechnology, mRejectCause, mEmergencyOnly, mAvailableServices,
-                mCellIdentity, mVoiceSpecificStates, mDataSpecificStates, mNrStatus);
+                mCellIdentity, mVoiceSpecificStates, mDataSpecificStates, mNrState);
     }
 
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
 
-        if (!(o instanceof NetworkRegistrationState)) {
+        if (!(o instanceof NetworkRegistrationInfo)) {
             return false;
         }
 
-        NetworkRegistrationState other = (NetworkRegistrationState) o;
+        NetworkRegistrationInfo other = (NetworkRegistrationInfo) o;
         return mDomain == other.mDomain
                 && mTransportType == other.mTransportType
-                && mRegState == other.mRegState
+                && mRegistrationState == other.mRegistrationState
                 && mRoamingType == other.mRoamingType
                 && mAccessNetworkTechnology == other.mAccessNetworkTechnology
                 && mRejectCause == other.mRejectCause
                 && mEmergencyOnly == other.mEmergencyOnly
-                && Arrays.equals(mAvailableServices, other.mAvailableServices)
+                && mAvailableServices.equals(other.mAvailableServices)
                 && Objects.equals(mCellIdentity, other.mCellIdentity)
                 && Objects.equals(mVoiceSpecificStates, other.mVoiceSpecificStates)
                 && Objects.equals(mDataSpecificStates, other.mDataSpecificStates)
-                && mNrStatus == other.mNrStatus;
+                && mNrState == other.mNrState;
     }
 
     @Override
     public void writeToParcel(Parcel dest, int flags) {
         dest.writeInt(mDomain);
         dest.writeInt(mTransportType);
-        dest.writeInt(mRegState);
+        dest.writeInt(mRegistrationState);
         dest.writeInt(mRoamingType);
         dest.writeInt(mAccessNetworkTechnology);
         dest.writeInt(mRejectCause);
         dest.writeBoolean(mEmergencyOnly);
-        dest.writeIntArray(mAvailableServices);
+        dest.writeList(mAvailableServices);
         dest.writeParcelable(mCellIdentity, 0);
         dest.writeParcelable(mVoiceSpecificStates, 0);
         dest.writeParcelable(mDataSpecificStates, 0);
-        dest.writeInt(mNrStatus);
+        dest.writeInt(mNrState);
     }
 
     /**
      * Use the 5G NR Non-Standalone indicators from the network registration state to update the
-     * NR status. There are 3 indicators in the network registration state:
+     * NR state. There are 3 indicators in the network registration state:
      *
      * 1. if E-UTRA-NR Dual Connectivity (EN-DC) is supported by the primary serving cell.
      * 2. if NR is supported by the selected PLMN.
@@ -517,90 +543,81 @@
      *
      * @param state data specific registration state contains the 5G NR indicators.
      */
-    private void updateNrStatus(DataSpecificRegistrationStates state) {
-        mNrStatus = NR_STATUS_NONE;
+    private void updateNrState(DataSpecificRegistrationStates state) {
+        mNrState = NR_STATE_NONE;
         if (state.isEnDcAvailable) {
             if (!state.isDcNrRestricted && state.isNrAvailable) {
-                mNrStatus = NR_STATUS_NOT_RESTRICTED;
+                mNrState = NR_STATE_NOT_RESTRICTED;
             } else {
-                mNrStatus = NR_STATUS_RESTRICTED;
+                mNrState = NR_STATE_RESTRICTED;
             }
         }
     }
 
-    public static final Parcelable.Creator<NetworkRegistrationState> CREATOR =
-            new Parcelable.Creator<NetworkRegistrationState>() {
-        @Override
-        public NetworkRegistrationState createFromParcel(Parcel source) {
-            return new NetworkRegistrationState(source);
-        }
+    public static final @NonNull Parcelable.Creator<NetworkRegistrationInfo> CREATOR =
+            new Parcelable.Creator<NetworkRegistrationInfo>() {
+                @Override
+                public NetworkRegistrationInfo createFromParcel(Parcel source) {
+                    return new NetworkRegistrationInfo(source);
+                }
 
-        @Override
-        public NetworkRegistrationState[] newArray(int size) {
-            return new NetworkRegistrationState[size];
-        }
-    };
+                @Override
+                public NetworkRegistrationInfo[] newArray(int size) {
+                    return new NetworkRegistrationInfo[size];
+                }
+            };
 
     /**
      * @hide
      */
-    public NetworkRegistrationState sanitizeLocationInfo() {
-        NetworkRegistrationState result = copy();
+    public NetworkRegistrationInfo sanitizeLocationInfo() {
+        NetworkRegistrationInfo result = copy();
         result.mCellIdentity = null;
         return result;
     }
 
-    private NetworkRegistrationState copy() {
+    private NetworkRegistrationInfo copy() {
         Parcel p = Parcel.obtain();
         this.writeToParcel(p, 0);
         p.setDataPosition(0);
-        NetworkRegistrationState result = new NetworkRegistrationState(p);
+        NetworkRegistrationInfo result = new NetworkRegistrationInfo(p);
         p.recycle();
         return result;
     }
 
     /**
-     * Provides a convenient way to set the fields of a {@link NetworkRegistrationState} when
+     * Provides a convenient way to set the fields of a {@link NetworkRegistrationInfo} when
      * creating a new instance.
      *
-     * <p>The example below shows how you might create a new {@code NetworkRegistrationState}:
+     * <p>The example below shows how you might create a new {@code NetworkRegistrationInfo}:
      *
      * <pre><code>
      *
-     * NetworkRegistrationState nrs = new NetworkRegistrationState.Builder()
-     *     .setApnTypeBitmask(ApnSetting.TYPE_DEFAULT | ApnSetting.TYPE_MMS)
-     *     .setApnName("apn.example.com")
-     *     .setEntryName("Example Carrier APN")
-     *     .setMmsc(Uri.parse("http://mms.example.com:8002"))
-     *     .setMmsProxyAddress(mmsProxy)
-     *     .setMmsProxyPort(8799)
+     * NetworkRegistrationInfo nri = new NetworkRegistrationInfo.Builder()
+     *     .setAccessNetworkTechnology(TelephonyManager.NETWORK_TYPE_LTE)
+     *     .setRegistrationState(REGISTRATION_STATE_HOME)
      *     .build();
      * </code></pre>
      */
-    public static class Builder{
+    public static final class Builder{
         @Domain
         private int mDomain;
 
+        @TransportType
         private int mTransportType;
 
-        @RegState
-        private int mRegState;
-
-        @ServiceState.RoamingType
-        private int mRoamingType;
+        @RegistrationState
+        private int mRegistrationState;
 
         @NetworkType
         private int mAccessNetworkTechnology;
 
-        @NRStatus
-        private int mNrStatus;
-
         private int mRejectCause;
 
         private boolean mEmergencyOnly;
 
         @ServiceType
-        private int[] mAvailableServices;
+        private List<Integer> mAvailableServices;
 
         @Nullable
         private CellIdentity mCellIdentity;
@@ -637,24 +654,12 @@
         /**
          * Set the registration state.
          *
-         * @param regState The registration state.
+         * @param registrationState The registration state.
          *
          * @return The same instance of the builder.
          */
-        public @NonNull Builder setRegState(@RegState int regState) {
-            mRegState = regState;
-            return this;
-        }
-
-        /**
-         * Set the roaming type.
-         *
-         * @param roamingType Roaming type.
-         *
-         * @return The same instance of the builder.
-         */
-        public @NonNull Builder setRoamingType(@ServiceState.RoamingType int roamingType) {
-            mRoamingType = roamingType;
+        public @NonNull Builder setRegistrationState(@RegistrationState int registrationState) {
+            mRegistrationState = registrationState;
             return this;
         }
 
@@ -672,24 +677,13 @@
         }
 
         /**
-         * Set the 5G NR connection status.
-         *
-         * @param nrStatus 5G NR connection status.
-         *
-         * @return The same instance of the builder.
-         */
-        public @NonNull Builder setNrStatus(@NRStatus int nrStatus) {
-            mNrStatus = nrStatus;
-            return this;
-        }
-
-        /**
          * Set the network reject cause.
          *
          * @param rejectCause Reason for denial if the registration state is
-         * {@link #REG_STATE_DENIED}.Depending on {@code accessNetworkTechnology}, the values are
-         * defined in 3GPP TS 24.008 10.5.3.6 for UMTS, 3GPP TS 24.301 9.9.3.9 for LTE, and 3GPP2
-         * A.S0001 6.2.2.44 for CDMA. If the reject cause is not supported or unknown, set it to 0.
+         * {@link #REGISTRATION_STATE_DENIED}.Depending on {@code accessNetworkTechnology}, the
+         * values are defined in 3GPP TS 24.008 10.5.3.6 for UMTS, 3GPP TS 24.301 9.9.3.9 for LTE,
+         * and 3GPP2 A.S0001 6.2.2.44 for CDMA. If the reject cause is not supported or unknown, set
+         * it to 0.
          *
          * @return The same instance of the builder.
          */
@@ -718,7 +712,7 @@
          * @return The same instance of the builder.
          */
         public @NonNull Builder setAvailableServices(
-                @NonNull @ServiceType int[] availableServices) {
+                @NonNull @ServiceType List<Integer> availableServices) {
             mAvailableServices = availableServices;
             return this;
         }
@@ -736,12 +730,12 @@
         }
 
         /**
-         * Build the NetworkRegistrationState.
+         * Build the NetworkRegistrationInfo.
          *
-         * @return the NetworkRegistrationState object.
+         * @return the NetworkRegistrationInfo object.
          */
-        public @NonNull NetworkRegistrationState build() {
-            return new NetworkRegistrationState(mDomain, mTransportType, mRegState,
+        public @NonNull NetworkRegistrationInfo build() {
+            return new NetworkRegistrationInfo(mDomain, mTransportType, mRegistrationState,
                     mAccessNetworkTechnology, mRejectCause, mEmergencyOnly, mAvailableServices,
                     mCellIdentity);
         }
diff --git a/telephony/java/android/telephony/NetworkService.java b/telephony/java/android/telephony/NetworkService.java
index f1240e9..bc989dd 100644
--- a/telephony/java/android/telephony/NetworkService.java
+++ b/telephony/java/android/telephony/NetworkService.java
@@ -27,7 +27,7 @@
 import android.os.Looper;
 import android.os.Message;
 import android.os.RemoteException;
-import android.telephony.NetworkRegistrationState.Domain;
+import android.telephony.NetworkRegistrationInfo.Domain;
 import android.util.SparseArray;
 
 import com.android.internal.annotations.VisibleForTesting;
@@ -59,10 +59,10 @@
     private static final int NETWORK_SERVICE_CREATE_NETWORK_SERVICE_PROVIDER                 = 1;
     private static final int NETWORK_SERVICE_REMOVE_NETWORK_SERVICE_PROVIDER                 = 2;
     private static final int NETWORK_SERVICE_REMOVE_ALL_NETWORK_SERVICE_PROVIDERS            = 3;
-    private static final int NETWORK_SERVICE_GET_REGISTRATION_STATE                          = 4;
-    private static final int NETWORK_SERVICE_REGISTER_FOR_STATE_CHANGE                       = 5;
-    private static final int NETWORK_SERVICE_UNREGISTER_FOR_STATE_CHANGE                     = 6;
-    private static final int NETWORK_SERVICE_INDICATION_NETWORK_STATE_CHANGED                = 7;
+    private static final int NETWORK_SERVICE_GET_REGISTRATION_INFO                           = 4;
+    private static final int NETWORK_SERVICE_REGISTER_FOR_INFO_CHANGE                        = 5;
+    private static final int NETWORK_SERVICE_UNREGISTER_FOR_INFO_CHANGE                      = 6;
+    private static final int NETWORK_SERVICE_INDICATION_NETWORK_INFO_CHANGED                 = 7;
 
 
     private final HandlerThread mHandlerThread;
@@ -86,7 +86,7 @@
         private final int mSlotIndex;
 
         private final List<INetworkServiceCallback>
-                mNetworkRegistrationStateChangedCallbacks = new ArrayList<>();
+                mNetworkRegistrationInfoChangedCallbacks = new ArrayList<>();
 
         /**
          * Constructor
@@ -104,38 +104,38 @@
         }
 
         /**
-         * API to get network registration state. The result will be passed to the callback.
+         * API to get network registration info. The result will be passed to the callback.
          * @param domain Network domain
-         * @param callback The callback for reporting network registration state
+         * @param callback The callback for reporting network registration info
          */
-        public void getNetworkRegistrationState(@Domain int domain,
-                                                @NonNull NetworkServiceCallback callback) {
-            callback.onGetNetworkRegistrationStateComplete(
+        public void getNetworkRegistrationInfo(@Domain int domain,
+                                               @NonNull NetworkServiceCallback callback) {
+            callback.onGetNetworkRegistrationInfoComplete(
                     NetworkServiceCallback.RESULT_ERROR_UNSUPPORTED, null);
         }
 
         /**
-         * Notify the system that network registration state is changed.
+         * Notify the system that network registration info is changed.
          */
-        public final void notifyNetworkRegistrationStateChanged() {
-            mHandler.obtainMessage(NETWORK_SERVICE_INDICATION_NETWORK_STATE_CHANGED,
+        public final void notifyNetworkRegistrationInfoChanged() {
+            mHandler.obtainMessage(NETWORK_SERVICE_INDICATION_NETWORK_INFO_CHANGED,
                     mSlotIndex, 0, null).sendToTarget();
         }
 
-        private void registerForStateChanged(@NonNull INetworkServiceCallback callback) {
-            synchronized (mNetworkRegistrationStateChangedCallbacks) {
-                mNetworkRegistrationStateChangedCallbacks.add(callback);
+        private void registerForInfoChanged(@NonNull INetworkServiceCallback callback) {
+            synchronized (mNetworkRegistrationInfoChangedCallbacks) {
+                mNetworkRegistrationInfoChangedCallbacks.add(callback);
             }
         }
 
-        private void unregisterForStateChanged(@NonNull INetworkServiceCallback callback) {
-            synchronized (mNetworkRegistrationStateChangedCallbacks) {
-                mNetworkRegistrationStateChangedCallbacks.remove(callback);
+        private void unregisterForInfoChanged(@NonNull INetworkServiceCallback callback) {
+            synchronized (mNetworkRegistrationInfoChangedCallbacks) {
+                mNetworkRegistrationInfoChangedCallbacks.remove(callback);
             }
         }
 
-        private void notifyStateChangedToCallbacks() {
-            for (INetworkServiceCallback callback : mNetworkRegistrationStateChangedCallbacks) {
+        private void notifyInfoChangedToCallbacks() {
+            for (INetworkServiceCallback callback : mNetworkRegistrationInfoChangedCallbacks) {
                 try {
                     callback.onNetworkStateChanged();
                 } catch (RemoteException exception) {
@@ -189,24 +189,24 @@
                     }
                     mServiceMap.clear();
                     break;
-                case NETWORK_SERVICE_GET_REGISTRATION_STATE:
+                case NETWORK_SERVICE_GET_REGISTRATION_INFO:
                     if (serviceProvider == null) break;
                     int domainId = message.arg2;
-                    serviceProvider.getNetworkRegistrationState(domainId,
+                    serviceProvider.getNetworkRegistrationInfo(domainId,
                             new NetworkServiceCallback(callback));
 
                     break;
-                case NETWORK_SERVICE_REGISTER_FOR_STATE_CHANGE:
+                case NETWORK_SERVICE_REGISTER_FOR_INFO_CHANGE:
                     if (serviceProvider == null) break;
-                    serviceProvider.registerForStateChanged(callback);
+                    serviceProvider.registerForInfoChanged(callback);
                     break;
-                case NETWORK_SERVICE_UNREGISTER_FOR_STATE_CHANGE:
+                case NETWORK_SERVICE_UNREGISTER_FOR_INFO_CHANGE:
                     if (serviceProvider == null) break;
-                    serviceProvider.unregisterForStateChanged(callback);
+                    serviceProvider.unregisterForInfoChanged(callback);
                     break;
-                case NETWORK_SERVICE_INDICATION_NETWORK_STATE_CHANGED:
+                case NETWORK_SERVICE_INDICATION_NETWORK_INFO_CHANGED:
                     if (serviceProvider == null) break;
-                    serviceProvider.notifyStateChangedToCallbacks();
+                    serviceProvider.notifyInfoChangedToCallbacks();
                     break;
                 default:
                     break;
@@ -280,23 +280,23 @@
         }
 
         @Override
-        public void getNetworkRegistrationState(
+        public void getNetworkRegistrationInfo(
                 int slotIndex, int domain, INetworkServiceCallback callback) {
-            mHandler.obtainMessage(NETWORK_SERVICE_GET_REGISTRATION_STATE, slotIndex,
+            mHandler.obtainMessage(NETWORK_SERVICE_GET_REGISTRATION_INFO, slotIndex,
                     domain, callback).sendToTarget();
         }
 
         @Override
-        public void registerForNetworkRegistrationStateChanged(
+        public void registerForNetworkRegistrationInfoChanged(
                 int slotIndex, INetworkServiceCallback callback) {
-            mHandler.obtainMessage(NETWORK_SERVICE_REGISTER_FOR_STATE_CHANGE, slotIndex,
+            mHandler.obtainMessage(NETWORK_SERVICE_REGISTER_FOR_INFO_CHANGE, slotIndex,
                     0, callback).sendToTarget();
         }
 
         @Override
-        public void unregisterForNetworkRegistrationStateChanged(
+        public void unregisterForNetworkRegistrationInfoChanged(
                 int slotIndex, INetworkServiceCallback callback) {
-            mHandler.obtainMessage(NETWORK_SERVICE_UNREGISTER_FOR_STATE_CHANGE, slotIndex,
+            mHandler.obtainMessage(NETWORK_SERVICE_UNREGISTER_FOR_INFO_CHANGE, slotIndex,
                     0, callback).sendToTarget();
         }
     }
diff --git a/telephony/java/android/telephony/NetworkServiceCallback.java b/telephony/java/android/telephony/NetworkServiceCallback.java
index c2fcfb7..cc25240 100644
--- a/telephony/java/android/telephony/NetworkServiceCallback.java
+++ b/telephony/java/android/telephony/NetworkServiceCallback.java
@@ -28,8 +28,8 @@
 
 /**
  * Network service callback. Object of this class is passed to NetworkServiceProvider upon
- * calling getNetworkRegistrationState, to receive asynchronous feedback from NetworkServiceProvider
- * upon onGetNetworkRegistrationStateComplete. It's like a wrapper of INetworkServiceCallback
+ * calling getNetworkRegistrationInfo, to receive asynchronous feedback from NetworkServiceProvider
+ * upon onGetNetworkRegistrationInfoComplete. It's like a wrapper of INetworkServiceCallback
  * because INetworkServiceCallback can't be a parameter type in public APIs.
  *
  * @hide
@@ -70,20 +70,20 @@
 
     /**
      * Called to indicate result of
-     * {@link NetworkServiceProvider#getNetworkRegistrationState(int, NetworkServiceCallback)}
+     * {@link NetworkServiceProvider#getNetworkRegistrationInfo(int, NetworkServiceCallback)}
      *
      * @param result Result status like {@link NetworkServiceCallback#RESULT_SUCCESS} or
      *                {@link NetworkServiceCallback#RESULT_ERROR_UNSUPPORTED}
      * @param state The state information to be returned to callback.
      */
-    public void onGetNetworkRegistrationStateComplete(int result,
-                                                      @Nullable NetworkRegistrationState state) {
+    public void onGetNetworkRegistrationInfoComplete(int result,
+                                                      @Nullable NetworkRegistrationInfo state) {
         INetworkServiceCallback callback = mCallback.get();
         if (callback != null) {
             try {
-                callback.onGetNetworkRegistrationStateComplete(result, state);
+                callback.onGetNetworkRegistrationInfoComplete(result, state);
             } catch (RemoteException e) {
-                Rlog.e(mTag, "Failed to onGetNetworkRegistrationStateComplete on the remote");
+                Rlog.e(mTag, "Failed to onGetNetworkRegistrationInfoComplete on the remote");
             }
         } else {
             Rlog.e(mTag, "Weak reference of callback is null.");
diff --git a/telephony/java/android/telephony/ServiceState.java b/telephony/java/android/telephony/ServiceState.java
index 4b15aac..589a4de 100644
--- a/telephony/java/android/telephony/ServiceState.java
+++ b/telephony/java/android/telephony/ServiceState.java
@@ -29,8 +29,8 @@
 import android.os.Parcelable;
 import android.telephony.AccessNetworkConstants.AccessNetworkType;
 import android.telephony.AccessNetworkConstants.TransportType;
-import android.telephony.NetworkRegistrationState.Domain;
-import android.telephony.NetworkRegistrationState.NRStatus;
+import android.telephony.NetworkRegistrationInfo.Domain;
+import android.telephony.NetworkRegistrationInfo.NRState;
 import android.text.TextUtils;
 
 import java.lang.annotation.Retention;
@@ -53,6 +53,9 @@
  *   <li>Operator name, short name and numeric id
  *   <li>Network selection mode
  * </ul>
+ *
+ * For historical reasons this class is not declared as final; however,
+ * it should be treated as though it were final.
  */
 public class ServiceState implements Parcelable {
 
@@ -349,7 +352,7 @@
      * Reference: 3GPP TS 36.104 5.4.3 */
     private int mLteEarfcnRsrpBoost = 0;
 
-    private List<NetworkRegistrationState> mNetworkRegistrationStates = new ArrayList<>();
+    private List<NetworkRegistrationInfo> mNetworkRegistrationInfos = new ArrayList<>();
 
     /**
      * get String description of roaming type
@@ -432,8 +435,8 @@
         mCellBandwidths = s.mCellBandwidths == null ? null :
                 Arrays.copyOf(s.mCellBandwidths, s.mCellBandwidths.length);
         mLteEarfcnRsrpBoost = s.mLteEarfcnRsrpBoost;
-        mNetworkRegistrationStates = s.mNetworkRegistrationStates == null ? null :
-                new ArrayList<>(s.mNetworkRegistrationStates);
+        mNetworkRegistrationInfos = s.mNetworkRegistrationInfos == null ? null :
+                new ArrayList<>(s.mNetworkRegistrationInfos);
         mNrFrequencyRange = s.mNrFrequencyRange;
     }
 
@@ -466,8 +469,8 @@
         mIsEmergencyOnly = in.readInt() != 0;
         mIsUsingCarrierAggregation = in.readInt() != 0;
         mLteEarfcnRsrpBoost = in.readInt();
-        mNetworkRegistrationStates = new ArrayList<>();
-        in.readList(mNetworkRegistrationStates, NetworkRegistrationState.class.getClassLoader());
+        mNetworkRegistrationInfos = new ArrayList<>();
+        in.readList(mNetworkRegistrationInfos, NetworkRegistrationInfo.class.getClassLoader());
         mChannelNumber = in.readInt();
         mCellBandwidths = in.createIntArray();
         mNrFrequencyRange = in.readInt();
@@ -495,7 +498,7 @@
         out.writeInt(mIsEmergencyOnly ? 1 : 0);
         out.writeInt(mIsUsingCarrierAggregation ? 1 : 0);
         out.writeInt(mLteEarfcnRsrpBoost);
-        out.writeList(mNetworkRegistrationStates);
+        out.writeList(mNetworkRegistrationInfos);
         out.writeInt(mChannelNumber);
         out.writeIntArray(mCellBandwidths);
         out.writeInt(mNrFrequencyRange);
@@ -620,8 +623,8 @@
      */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
     public @RoamingType int getVoiceRoamingType() {
-        final NetworkRegistrationState regState = getNetworkRegistrationState(
-                NetworkRegistrationState.DOMAIN_CS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
+        final NetworkRegistrationInfo regState = getNetworkRegistrationInfo(
+                NetworkRegistrationInfo.DOMAIN_CS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
         if (regState != null) {
             return regState.getRoamingType();
         }
@@ -644,10 +647,11 @@
      * @hide
      */
     public boolean getDataRoamingFromRegistration() {
-        final NetworkRegistrationState regState = getNetworkRegistrationState(
-                NetworkRegistrationState.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
+        final NetworkRegistrationInfo regState = getNetworkRegistrationInfo(
+                NetworkRegistrationInfo.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
         if (regState != null) {
-            return (regState.getRegState() == NetworkRegistrationState.REG_STATE_ROAMING);
+            return regState.getRegistrationState()
+                    == NetworkRegistrationInfo.REGISTRATION_STATE_ROAMING;
         }
         return false;
     }
@@ -659,8 +663,8 @@
      */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
     public @RoamingType int getDataRoamingType() {
-        final NetworkRegistrationState regState = getNetworkRegistrationState(
-                NetworkRegistrationState.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
+        final NetworkRegistrationInfo regState = getNetworkRegistrationInfo(
+                NetworkRegistrationInfo.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
         if (regState != null) {
             return regState.getRoamingType();
         }
@@ -858,7 +862,7 @@
                 mIsEmergencyOnly,
                 mIsUsingCarrierAggregation,
                 mLteEarfcnRsrpBoost,
-                mNetworkRegistrationStates,
+                mNetworkRegistrationInfos,
                 mNrFrequencyRange);
     }
 
@@ -888,9 +892,9 @@
                         s.mCdmaDefaultRoamingIndicator)
                 && mIsEmergencyOnly == s.mIsEmergencyOnly
                 && mIsUsingCarrierAggregation == s.mIsUsingCarrierAggregation)
-                && (mNetworkRegistrationStates == null ? s.mNetworkRegistrationStates == null :
-                        s.mNetworkRegistrationStates != null &&
-                        mNetworkRegistrationStates.containsAll(s.mNetworkRegistrationStates))
+                && (mNetworkRegistrationInfos == null
+                ? s.mNetworkRegistrationInfos == null : s.mNetworkRegistrationInfos != null
+                && mNetworkRegistrationInfos.containsAll(s.mNetworkRegistrationInfos))
                 && mNrFrequencyRange == s.mNrFrequencyRange;
     }
 
@@ -1043,7 +1047,7 @@
             .append(", mIsEmergencyOnly=").append(mIsEmergencyOnly)
             .append(", mIsUsingCarrierAggregation=").append(mIsUsingCarrierAggregation)
             .append(", mLteEarfcnRsrpBoost=").append(mLteEarfcnRsrpBoost)
-            .append(", mNetworkRegistrationStates=").append(mNetworkRegistrationStates)
+            .append(", mNetworkRegistrationInfos=").append(mNetworkRegistrationInfos)
             .append(", mNrFrequencyRange=").append(mNrFrequencyRange)
             .append("}").toString();
     }
@@ -1073,7 +1077,7 @@
         mIsEmergencyOnly = false;
         mIsUsingCarrierAggregation = false;
         mLteEarfcnRsrpBoost = 0;
-        mNetworkRegistrationStates = new ArrayList<>();
+        mNetworkRegistrationInfos = new ArrayList<>();
         mNrFrequencyRange = FREQUENCY_RANGE_UNKNOWN;
     }
 
@@ -1130,14 +1134,14 @@
     /** @hide */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
     public void setVoiceRoamingType(@RoamingType int type) {
-        NetworkRegistrationState regState = getNetworkRegistrationState(
-                NetworkRegistrationState.DOMAIN_CS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
+        NetworkRegistrationInfo regState = getNetworkRegistrationInfo(
+                NetworkRegistrationInfo.DOMAIN_CS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
         if (regState == null) {
-            regState = new NetworkRegistrationState(
-                    NetworkRegistrationState.DOMAIN_CS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN,
-                    ServiceState.ROAMING_TYPE_NOT_ROAMING, TelephonyManager.NETWORK_TYPE_UNKNOWN, 0,
-                    false, null, null);
-            addNetworkRegistrationState(regState);
+            regState = new NetworkRegistrationInfo.Builder()
+                    .setDomain(NetworkRegistrationInfo.DOMAIN_CS)
+                    .setTransportType(AccessNetworkConstants.TRANSPORT_TYPE_WWAN)
+                    .build();
+            addNetworkRegistrationInfo(regState);
         }
         regState.setRoamingType(type);
     }
@@ -1151,14 +1155,14 @@
     /** @hide */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
     public void setDataRoamingType(@RoamingType int type) {
-        NetworkRegistrationState regState = getNetworkRegistrationState(
-                NetworkRegistrationState.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
+        NetworkRegistrationInfo regState = getNetworkRegistrationInfo(
+                NetworkRegistrationInfo.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
         if (regState == null) {
-            regState = new NetworkRegistrationState(
-                    NetworkRegistrationState.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN,
-                    ServiceState.ROAMING_TYPE_NOT_ROAMING, TelephonyManager.NETWORK_TYPE_UNKNOWN, 0,
-                    false, null, null);
-            addNetworkRegistrationState(regState);
+            regState = new NetworkRegistrationInfo.Builder()
+                    .setDomain(NetworkRegistrationInfo.DOMAIN_PS)
+                    .setTransportType(AccessNetworkConstants.TRANSPORT_TYPE_WWAN)
+                    .build();
+            addNetworkRegistrationInfo(regState);
         }
         regState.setRoamingType(type);
     }
@@ -1326,14 +1330,14 @@
         this.mRilVoiceRadioTechnology = rt;
 
         // sync to network registration state
-        NetworkRegistrationState regState = getNetworkRegistrationState(
-                NetworkRegistrationState.DOMAIN_CS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
+        NetworkRegistrationInfo regState = getNetworkRegistrationInfo(
+                NetworkRegistrationInfo.DOMAIN_CS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
         if (regState == null) {
-            regState = new NetworkRegistrationState(
-                    NetworkRegistrationState.DOMAIN_CS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN,
-                    ServiceState.ROAMING_TYPE_NOT_ROAMING, TelephonyManager.NETWORK_TYPE_UNKNOWN,
-                    0, false, null, null);
-            addNetworkRegistrationState(regState);
+            regState = new NetworkRegistrationInfo.Builder()
+                    .setDomain(NetworkRegistrationInfo.DOMAIN_CS)
+                    .setTransportType(AccessNetworkConstants.TRANSPORT_TYPE_WWAN)
+                    .build();
+            addNetworkRegistrationInfo(regState);
         }
         regState.setAccessNetworkTechnology(
                 rilRadioTechnologyToNetworkType(mRilVoiceRadioTechnology));
@@ -1353,15 +1357,15 @@
                 mRilDataRadioTechnology);
 
         // sync to network registration state
-        NetworkRegistrationState regState = getNetworkRegistrationState(
-                NetworkRegistrationState.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
+        NetworkRegistrationInfo regState = getNetworkRegistrationInfo(
+                NetworkRegistrationInfo.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
 
         if (regState == null) {
-            regState = new NetworkRegistrationState(
-                    NetworkRegistrationState.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN,
-                    ServiceState.ROAMING_TYPE_NOT_ROAMING, TelephonyManager.NETWORK_TYPE_UNKNOWN,
-                    0, false, null, null);
-            addNetworkRegistrationState(regState);
+            regState = new NetworkRegistrationInfo.Builder()
+                    .setDomain(NetworkRegistrationInfo.DOMAIN_PS)
+                    .setTransportType(AccessNetworkConstants.TRANSPORT_TYPE_WWAN)
+                    .build();
+            addNetworkRegistrationInfo(regState);
         }
         regState.setAccessNetworkTechnology(
                 rilRadioTechnologyToNetworkType(mRilDataRadioTechnology));
@@ -1386,15 +1390,15 @@
     }
 
     /**
-     * Get the NR 5G status of the mobile data network.
-     * @return the NR 5G status.
+     * Get the NR 5G state of the mobile data network.
+     * @return the NR 5G state.
      * @hide
      */
-    public @NRStatus int getNrStatus() {
-        final NetworkRegistrationState regState = getNetworkRegistrationState(
-                NetworkRegistrationState.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
-        if (regState == null) return NetworkRegistrationState.NR_STATUS_NONE;
-        return regState.getNrStatus();
+    public @NRState int getNrState() {
+        final NetworkRegistrationInfo regState = getNetworkRegistrationInfo(
+                NetworkRegistrationInfo.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
+        if (regState == null) return NetworkRegistrationInfo.NR_STATE_NONE;
+        return regState.getNrState();
     }
 
     /**
@@ -1576,19 +1580,19 @@
     /** @hide */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
     public @TelephonyManager.NetworkType int getDataNetworkType() {
-        final NetworkRegistrationState iwlanRegState = getNetworkRegistrationState(
-                NetworkRegistrationState.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WLAN);
-        if (iwlanRegState != null
-                && iwlanRegState.getRegState() == NetworkRegistrationState.REG_STATE_HOME) {
+        final NetworkRegistrationInfo iwlanRegState = getNetworkRegistrationInfo(
+                NetworkRegistrationInfo.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WLAN);
+        if (iwlanRegState != null && iwlanRegState.getRegistrationState()
+                == NetworkRegistrationInfo.REGISTRATION_STATE_HOME) {
             // If the device is on IWLAN, return IWLAN as the network type. This is to simulate the
             // behavior of legacy mode device. In the future caller should use
-            // getNetworkRegistrationState() to retrieve the actual data network type on cellular
+            // getNetworkRegistrationInfo() to retrieve the actual data network type on cellular
             // or on IWLAN.
             return iwlanRegState.getAccessNetworkTechnology();
         }
 
-        final NetworkRegistrationState regState = getNetworkRegistrationState(
-                NetworkRegistrationState.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
+        final NetworkRegistrationInfo regState = getNetworkRegistrationInfo(
+                NetworkRegistrationInfo.DOMAIN_PS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
         if (regState != null) {
             return regState.getAccessNetworkTechnology();
         }
@@ -1598,8 +1602,8 @@
     /** @hide */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
     public @TelephonyManager.NetworkType int getVoiceNetworkType() {
-        final NetworkRegistrationState regState = getNetworkRegistrationState(
-                NetworkRegistrationState.DOMAIN_CS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
+        final NetworkRegistrationInfo regState = getNetworkRegistrationInfo(
+                NetworkRegistrationInfo.DOMAIN_CS, AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
         if (regState != null) {
             return regState.getAccessNetworkTechnology();
         }
@@ -1762,52 +1766,36 @@
     }
 
     /**
-     * Get all of the available network registration states.
+     * Get all of the available network registration info.
      *
-     * @return List of {@link NetworkRegistrationState}
+     * @return List of {@link NetworkRegistrationInfo}
      * @hide
      */
     @NonNull
     @SystemApi
-    public List<NetworkRegistrationState> getNetworkRegistrationStates() {
-        synchronized (mNetworkRegistrationStates) {
-            return new ArrayList<>(mNetworkRegistrationStates);
+    public List<NetworkRegistrationInfo> getNetworkRegistrationInfoList() {
+        synchronized (mNetworkRegistrationInfos) {
+            return new ArrayList<>(mNetworkRegistrationInfos);
         }
     }
 
     /**
-     * Get the network registration states for the transport type.
+     * Get the network registration info list for the transport type.
      *
      * @param transportType The transport type
-     * @return List of {@link NetworkRegistrationState}
-     * @hide
-     *
-     * @deprecated Use {@link #getNetworkRegistrationStatesForTransportType(int)}
-     */
-    @NonNull
-    @Deprecated
-    @SystemApi
-    public List<NetworkRegistrationState> getNetworkRegistrationStates(int transportType) {
-        return getNetworkRegistrationStatesForTransportType(transportType);
-    }
-
-    /**
-     * Get the network registration states for the transport type.
-     *
-     * @param transportType The transport type
-     * @return List of {@link NetworkRegistrationState}
+     * @return List of {@link NetworkRegistrationInfo}
      * @hide
      */
     @NonNull
     @SystemApi
-    public List<NetworkRegistrationState> getNetworkRegistrationStatesForTransportType(
+    public List<NetworkRegistrationInfo> getNetworkRegistrationInfoListForTransportType(
             @TransportType int transportType) {
-        List<NetworkRegistrationState> list = new ArrayList<>();
+        List<NetworkRegistrationInfo> list = new ArrayList<>();
 
-        synchronized (mNetworkRegistrationStates) {
-            for (NetworkRegistrationState networkRegistrationState : mNetworkRegistrationStates) {
-                if (networkRegistrationState.getTransportType() == transportType) {
-                    list.add(networkRegistrationState);
+        synchronized (mNetworkRegistrationInfos) {
+            for (NetworkRegistrationInfo networkRegistrationInfo : mNetworkRegistrationInfos) {
+                if (networkRegistrationInfo.getTransportType() == transportType) {
+                    list.add(networkRegistrationInfo);
                 }
             }
         }
@@ -1816,22 +1804,22 @@
     }
 
     /**
-     * Get the network registration states for the network domain.
+     * Get the network registration info list for the network domain.
      *
-     * @param domain The network {@link NetworkRegistrationState.Domain domain}
-     * @return List of {@link NetworkRegistrationState}
+     * @param domain The network {@link NetworkRegistrationInfo.Domain domain}
+     * @return List of {@link NetworkRegistrationInfo}
      * @hide
      */
     @NonNull
     @SystemApi
-    public List<NetworkRegistrationState> getNetworkRegistrationStatesForDomain(
+    public List<NetworkRegistrationInfo> getNetworkRegistrationInfoListForDomain(
             @Domain int domain) {
-        List<NetworkRegistrationState> list = new ArrayList<>();
+        List<NetworkRegistrationInfo> list = new ArrayList<>();
 
-        synchronized (mNetworkRegistrationStates) {
-            for (NetworkRegistrationState networkRegistrationState : mNetworkRegistrationStates) {
-                if (networkRegistrationState.getDomain() == domain) {
-                    list.add(networkRegistrationState);
+        synchronized (mNetworkRegistrationInfos) {
+            for (NetworkRegistrationInfo networkRegistrationInfo : mNetworkRegistrationInfos) {
+                if (networkRegistrationInfo.getDomain() == domain) {
+                    list.add(networkRegistrationInfo);
                 }
             }
         }
@@ -1842,39 +1830,21 @@
     /**
      * Get the network registration state for the transport type and network domain.
      *
-     * @param domain The network {@link NetworkRegistrationState.Domain domain}
+     * @param domain The network {@link NetworkRegistrationInfo.Domain domain}
      * @param transportType The transport type
-     * @return The matching {@link NetworkRegistrationState}
-     * @hide
-     *
-     * @deprecated Use {@link #getNetworkRegistrationState(int, int)}
-     */
-    @Nullable
-    @Deprecated
-    @SystemApi
-    public NetworkRegistrationState getNetworkRegistrationStates(@Domain int domain,
-                                                                 @TransportType int transportType) {
-        return getNetworkRegistrationState(domain, transportType);
-    }
-
-    /**
-     * Get the network registration state for the transport type and network domain.
-     *
-     * @param domain The network {@link NetworkRegistrationState.Domain domain}
-     * @param transportType The transport type
-     * @return The matching {@link NetworkRegistrationState}
+     * @return The matching {@link NetworkRegistrationInfo}
      * @hide
      *
      */
     @Nullable
     @SystemApi
-    public NetworkRegistrationState getNetworkRegistrationState(@Domain int domain,
-                                                                @TransportType int transportType) {
-        synchronized (mNetworkRegistrationStates) {
-            for (NetworkRegistrationState networkRegistrationState : mNetworkRegistrationStates) {
-                if (networkRegistrationState.getTransportType() == transportType
-                        && networkRegistrationState.getDomain() == domain) {
-                    return networkRegistrationState;
+    public NetworkRegistrationInfo getNetworkRegistrationInfo(@Domain int domain,
+                                                              @TransportType int transportType) {
+        synchronized (mNetworkRegistrationInfos) {
+            for (NetworkRegistrationInfo networkRegistrationInfo : mNetworkRegistrationInfos) {
+                if (networkRegistrationInfo.getTransportType() == transportType
+                        && networkRegistrationInfo.getDomain() == domain) {
+                    return networkRegistrationInfo;
                 }
             }
         }
@@ -1885,20 +1855,20 @@
     /**
      * @hide
      */
-    public void addNetworkRegistrationState(NetworkRegistrationState regState) {
+    public void addNetworkRegistrationInfo(NetworkRegistrationInfo regState) {
         if (regState == null) return;
 
-        synchronized (mNetworkRegistrationStates) {
-            for (int i = 0; i < mNetworkRegistrationStates.size(); i++) {
-                NetworkRegistrationState curRegState = mNetworkRegistrationStates.get(i);
+        synchronized (mNetworkRegistrationInfos) {
+            for (int i = 0; i < mNetworkRegistrationInfos.size(); i++) {
+                NetworkRegistrationInfo curRegState = mNetworkRegistrationInfos.get(i);
                 if (curRegState.getTransportType() == regState.getTransportType()
                         && curRegState.getDomain() == regState.getDomain()) {
-                    mNetworkRegistrationStates.remove(i);
+                    mNetworkRegistrationInfos.remove(i);
                     break;
                 }
             }
 
-            mNetworkRegistrationStates.add(regState);
+            mNetworkRegistrationInfos.add(regState);
         }
     }
 
@@ -1913,15 +1883,15 @@
 
     /**
      * Returns a copy of self with location-identifying information removed.
-     * Always clears the NetworkRegistrationState's CellIdentity fields, but if removeCoarseLocation
+     * Always clears the NetworkRegistrationInfo's CellIdentity fields, but if removeCoarseLocation
      * is true, clears other info as well.
      * @hide
      */
     public ServiceState sanitizeLocationInfo(boolean removeCoarseLocation) {
         ServiceState state = new ServiceState(this);
-        if (state.mNetworkRegistrationStates != null) {
-            state.mNetworkRegistrationStates = state.mNetworkRegistrationStates.stream()
-                    .map(NetworkRegistrationState::sanitizeLocationInfo)
+        if (state.mNetworkRegistrationInfos != null) {
+            state.mNetworkRegistrationInfos = state.mNetworkRegistrationInfos.stream()
+                    .map(NetworkRegistrationInfo::sanitizeLocationInfo)
                     .collect(Collectors.toList());
         }
         if (!removeCoarseLocation) return state;
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 973cd77..bf8eb0f 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -4755,18 +4755,22 @@
      * Registers a listener object to receive notification of changes
      * in specified telephony states.
      * <p>
-     * To register a listener, pass a {@link PhoneStateListener}
-     * and specify at least one telephony state of interest in
-     * the events argument.
+     * To register a listener, pass a {@link PhoneStateListener} and specify at least one telephony
+     * state of interest in the events argument.
      *
-     * At registration, and when a specified telephony state
-     * changes, the telephony manager invokes the appropriate
-     * callback method on the listener object and passes the
-     * current (updated) values.
+     * At registration, and when a specified telephony state changes, the telephony manager invokes
+     * the appropriate callback method on the listener object and passes the current (updated)
+     * values.
      * <p>
-     * To unregister a listener, pass the listener object and set the
-     * events argument to
+     * To un-register a listener, pass the listener object and set the events argument to
      * {@link PhoneStateListener#LISTEN_NONE LISTEN_NONE} (0).
+     *
+     * If this TelephonyManager object has been created with {@link #createForSubscriptionId},
+     * applies to the given subId. Otherwise, applies to
+     * {@link SubscriptionManager#getDefaultSubscriptionId()}. To listen events for multiple subIds,
+     * pass a separate listener object to each TelephonyManager object created with
+     * {@link #createForSubscriptionId}.
+     *
      * Note: if you call this method while in the middle of a binder transaction, you <b>must</b>
      * call {@link android.os.Binder#clearCallingIdentity()} before calling this method. A
      * {@link SecurityException} will be thrown otherwise.
@@ -4781,17 +4785,18 @@
         if (mContext == null) return;
         try {
             boolean notifyNow = (getITelephony() != null);
-            // If the listener has not explicitly set the subId (for example, created with the
-            // default constructor), replace the subId so it will listen to the account the
-            // telephony manager is created with.
-            if (listener.mSubId == null) {
-                listener.mSubId = mSubId;
-            }
-
             ITelephonyRegistry registry = getTelephonyRegistry();
             if (registry != null) {
-                registry.listenForSubscriber(listener.mSubId, getOpPackageName(),
+                // listen to the subId the telephony manager is created with. Ignore subId in
+                // PhoneStateListener.
+                registry.listenForSubscriber(mSubId, getOpPackageName(),
                         listener.callback, events, notifyNow);
+                // TODO: remove this once we remove PhoneStateListener constructor with subId.
+                if (events == PhoneStateListener.LISTEN_NONE) {
+                    listener.mSubId = SubscriptionManager.INVALID_SUBSCRIPTION_ID;
+                } else {
+                    listener.mSubId = mSubId;
+                }
             } else {
                 Rlog.w(TAG, "telephony registry not ready.");
             }
@@ -5267,7 +5272,6 @@
      */
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
     @SystemApi
-    @Nullable
     public boolean iccCloseLogicalChannelBySlot(int slotIndex, int channel) {
         try {
             ITelephony telephony = getITelephony();
@@ -5344,8 +5348,8 @@
      * @param p3 P3 value of the APDU command. If p3 is negative a 4 byte APDU
      *            is sent to the SIM.
      * @param data Data to be sent with the APDU.
-     * @return The APDU response from the ICC card with the status appended at
-     *            the end.
+     * @return The APDU response from the ICC card with the status appended at the end, or null if
+     * there is an issue connecting to the Telephony service.
      * @hide
      */
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
@@ -6757,14 +6761,12 @@
             }
         } catch (RemoteException ex) {
             Rlog.e(TAG, "getPreferredNetworkType RemoteException", ex);
-        } catch (NullPointerException ex) {
-            Rlog.e(TAG, "getPreferredNetworkType NPE", ex);
         }
         return -1;
     }
 
     /**
-     * Get the preferred network type bitmap.
+     * Get the preferred network type bitmask.
      *
      * <p>If this object has been created with {@link #createForSubscriptionId}, applies to the
      * given subId. Otherwise, applies to {@link SubscriptionManager#getDefaultSubscriptionId()}
@@ -6773,13 +6775,13 @@
      * {@link android.Manifest.permission#READ_PRIVILEGED_PHONE_STATE READ_PRIVILEGED_PHONE_STATE}
      * or that the calling app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
-     * @return The bitmap of preferred network types.
+     * @return The bitmask of preferred network types.
      *
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     @SystemApi
-    public @NetworkTypeBitMask long getPreferredNetworkTypeBitmap() {
+    public @NetworkTypeBitMask long getPreferredNetworkTypeBitmask() {
         try {
             ITelephony telephony = getITelephony();
             if (telephony != null) {
@@ -6787,9 +6789,7 @@
                         telephony.getPreferredNetworkType(getSubId()));
             }
         } catch (RemoteException ex) {
-            Rlog.e(TAG, "getPreferredNetworkTypeBitmap RemoteException", ex);
-        } catch (NullPointerException ex) {
-            Rlog.e(TAG, "getPreferredNetworkTypeBitmap NPE", ex);
+            Rlog.e(TAG, "getPreferredNetworkTypeBitmask RemoteException", ex);
         }
         return 0;
     }
@@ -7014,14 +7014,12 @@
             }
         } catch (RemoteException ex) {
             Rlog.e(TAG, "setPreferredNetworkType RemoteException", ex);
-        } catch (NullPointerException ex) {
-            Rlog.e(TAG, "setPreferredNetworkType NPE", ex);
         }
         return false;
     }
 
     /**
-     * Set the preferred network type bitmap.
+     * Set the preferred network type bitmask.
      *
      * <p>If this object has been created with {@link #createForSubscriptionId}, applies to the
      * given subId. Otherwise, applies to {@link SubscriptionManager#getDefaultSubscriptionId()}
@@ -7030,24 +7028,22 @@
      * {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE} or that the calling
      * app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
-     * @param networkTypeBitmap The bitmap of preferred network types.
+     * @param networkTypeBitmask The bitmask of preferred network types.
      * @return true on success; false on any failure.
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
     @SystemApi
-    public boolean setPreferredNetworkTypeBitmap(@NetworkTypeBitMask long networkTypeBitmap) {
+    public boolean setPreferredNetworkTypeBitmask(@NetworkTypeBitMask long networkTypeBitmask) {
         try {
             ITelephony telephony = getITelephony();
             if (telephony != null) {
                 return telephony.setPreferredNetworkType(
                         getSubId(), RadioAccessFamily.getNetworkTypeFromRaf(
-                                (int) networkTypeBitmap));
+                                (int) networkTypeBitmask));
             }
         } catch (RemoteException ex) {
-            Rlog.e(TAG, "setPreferredNetworkType RemoteException", ex);
-        } catch (NullPointerException ex) {
-            Rlog.e(TAG, "setPreferredNetworkType NPE", ex);
+            Rlog.e(TAG, "setPreferredNetworkTypeBitmask RemoteException", ex);
         }
         return false;
     }
@@ -10512,45 +10508,77 @@
      * <p>Note: the API does not prevent access to the SIM cards for operations that don't require
      * access to the network.
      *
-     * @param isMultisimCarrierRestricted true if usage of multiple SIMs is restricted, false
+     * @param isMultiSimCarrierRestricted true if usage of multiple SIMs is restricted, false
      * otherwise.
      *
      * @hide
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
-    public void setMultisimCarrierRestriction(boolean isMultisimCarrierRestricted) {
+    public void setMultiSimCarrierRestriction(boolean isMultiSimCarrierRestricted) {
         try {
             ITelephony service = getITelephony();
             if (service != null) {
-                service.setMultisimCarrierRestriction(isMultisimCarrierRestricted);
+                service.setMultiSimCarrierRestriction(isMultiSimCarrierRestricted);
             }
         } catch (RemoteException e) {
-            Log.e(TAG, "setMultisimCarrierRestriction RemoteException", e);
+            Log.e(TAG, "setMultiSimCarrierRestriction RemoteException", e);
         }
     }
 
     /**
+     * The usage of multiple SIM cards at the same time to register on the network (e.g. Dual
+     * Standby or Dual Active) is supported.
+     */
+    public static final int MULTISIM_ALLOWED = 0;
+
+    /**
+     * The usage of multiple SIM cards at the same time to register on the network (e.g. Dual
+     * Standby or Dual Active) is not supported by the hardware.
+     */
+    public static final int MULTISIM_NOT_SUPPORTED_BY_HARDWARE = 1;
+
+    /**
+     * The usage of multiple SIM cards at the same time to register on the network (e.g. Dual
+     * Standby or Dual Active) is supported by the hardware, but restricted by the carrier.
+     */
+    public static final int MULTISIM_NOT_SUPPORTED_BY_CARRIER = 2;
+
+    /** @hide */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(prefix = {"MULTISIM_"},
+            value = {
+                    MULTISIM_ALLOWED,
+                    MULTISIM_NOT_SUPPORTED_BY_HARDWARE,
+                    MULTISIM_NOT_SUPPORTED_BY_CARRIER
+            })
+    public @interface IsMultiSimSupportedResult {}
+
+    /**
      * Returns if the usage of multiple SIM cards at the same time to register on the network
      * (e.g. Dual Standby or Dual Active) is supported by the device and by the carrier.
      *
      * <p>Requires Permission: {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
      * or that the calling app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
-     * @return true if usage of multiple SIMs is supported, false otherwise.
+     * @return {@link #MULTISIM_ALLOWED} if the device supports multiple SIMs.
+     * {@link #MULTISIM_NOT_SUPPORTED_BY_HARDWARE} if the device does not support multiple SIMs.
+     * {@link #MULTISIM_NOT_SUPPORTED_BY_CARRIER} in the device supports multiple SIMs, but the
+     * functionality is restricted by the carrier.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
-    public boolean isMultisimSupported() {
+    @IsMultiSimSupportedResult
+    public int isMultiSimSupported() {
         try {
             ITelephony service = getITelephony();
             if (service != null) {
-                return service.isMultisimSupported(getOpPackageName());
+                return service.isMultiSimSupported(getOpPackageName());
             }
         } catch (RemoteException e) {
-            Log.e(TAG, "isMultisimSupported RemoteException", e);
+            Log.e(TAG, "isMultiSimSupported RemoteException", e);
         }
-        return false;
+        return MULTISIM_NOT_SUPPORTED_BY_HARDWARE;
     }
 
     /**
diff --git a/telephony/java/android/telephony/euicc/EuiccManager.java b/telephony/java/android/telephony/euicc/EuiccManager.java
index b8a07e4..12ad140 100644
--- a/telephony/java/android/telephony/euicc/EuiccManager.java
+++ b/telephony/java/android/telephony/euicc/EuiccManager.java
@@ -121,6 +121,10 @@
      * enable or disable a subscription. Must be accompanied with {@link #EXTRA_SUBSCRIPTION_ID} and
      * {@link #EXTRA_ENABLE_SUBSCRIPTION}.
      *
+     * Requires the caller to be a privileged process with the
+     * {@link android.permission#CALL_PRIVILEGED} permission for the intent to reach the Telephony
+     * stack.
+     *
      * <p>Unlike {@link #switchToSubscription(int, PendingIntent)}, using this action allows the
      * underlying eUICC service (i.e. the LPA app) to control the UI experience during this
      * operation. The action is received by the Telephony framework, which in turn selects and
@@ -140,6 +144,10 @@
      * Intent action sent by system apps (such as the Settings app) to the Telephony framework to
      * delete a subscription. Must be accompanied with {@link #EXTRA_SUBSCRIPTION_ID}.
      *
+     * Requires the caller to be a privileged process with the
+     * {@link android.permission#CALL_PRIVILEGED} permission for the intent to reach the Telephony
+     * stack.
+     *
      * <p>Unlike {@link #deleteSubscription(int, PendingIntent)}, using this action allows the
      * underlying eUICC service (i.e. the LPA app) to control the UI experience during this
      * operation. The action is received by the Telephony framework, which in turn selects and
@@ -160,6 +168,10 @@
      * rename a subscription. Must be accompanied with {@link #EXTRA_SUBSCRIPTION_ID} and
      * {@link #EXTRA_SUBSCRIPTION_NICKNAME}.
      *
+     * Requires the caller to be a privileged process with the
+     * {@link android.permission#CALL_PRIVILEGED} permission for the intent to reach the Telephony
+     * stack.
+     *
      * <p>Unlike {@link #updateSubscriptionNickname(int, String, PendingIntent)}, using this action
      * allows the the underlying eUICC service (i.e. the LPA app) to control the UI experience
      * during this operation. The action is received by the Telephony framework, which in turn
@@ -260,6 +272,8 @@
      * {@link #ACTION_DELETE_SUBSCRIPTION_PRIVILEGED}, and
      * {@link #ACTION_RENAME_SUBSCRIPTION_PRIVILEGED} providing the ID of the targeted subscription.
      *
+     * <p>Expected type of the extra data: int
+     *
      * @hide
      */
     @SystemApi
@@ -270,6 +284,8 @@
      * Key for an extra set on {@link #ACTION_TOGGLE_SUBSCRIPTION_PRIVILEGED} providing a boolean
      * value of whether to enable or disable the targeted subscription.
      *
+     * <p>Expected type of the extra data: boolean
+     *
      * @hide
      */
     @SystemApi
@@ -280,6 +296,8 @@
      * Key for an extra set on {@link #ACTION_RENAME_SUBSCRIPTION_PRIVILEGED} providing a new
      * nickname for the targeted subscription.
      *
+     * <p>Expected type of the extra data: String
+     *
      * @hide
      */
     @SystemApi
diff --git a/telephony/java/android/telephony/ims/ImsException.java b/telephony/java/android/telephony/ims/ImsException.java
index 02eddf6..8c686f7 100644
--- a/telephony/java/android/telephony/ims/ImsException.java
+++ b/telephony/java/android/telephony/ims/ImsException.java
@@ -31,7 +31,7 @@
  * @hide
  */
 @SystemApi
-public class ImsException extends Exception {
+public final class ImsException extends Exception {
 
     /**
      * The operation has failed due to an unknown or unspecified error.
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 02a5bc8..cbb9b88 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -1911,15 +1911,18 @@
      * Indicate if the enablement of multi SIM functionality is restricted.
      * @hide
      */
-    void setMultisimCarrierRestriction(boolean isMultisimCarrierRestricted);
+    void setMultiSimCarrierRestriction(boolean isMultiSimCarrierRestricted);
 
     /**
      * Returns if the usage of multiple SIM cards at the same time is supported.
      *
      * @param callingPackage The package making the call.
-     * @return true if multisim is supported, false otherwise.
+     * @return {@link #MULTISIM_ALLOWED} if the device supports multiple SIMs.
+     * {@link #MULTISIM_NOT_SUPPORTED_BY_HARDWARE} if the device does not support multiple SIMs.
+     * {@link #MULTISIM_NOT_SUPPORTED_BY_CARRIER} in the device supports multiple SIMs, but the
+     * functionality is restricted by the carrier.
      */
-    boolean isMultisimSupported(String callingPackage);
+    int isMultiSimSupported(String callingPackage);
 
     /**
      * Switch configs to enable multi-sim or switch back to single-sim
diff --git a/tests/ActivityManagerPerfTests/test-app/Android.bp b/tests/ActivityManagerPerfTests/test-app/Android.bp
new file mode 100644
index 0000000..ef9d587
--- /dev/null
+++ b/tests/ActivityManagerPerfTests/test-app/Android.bp
@@ -0,0 +1,21 @@
+// 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.
+
+android_test {
+    name: "ActivityManagerPerfTestsTestApp",
+    srcs: ["src/**/*.java"],
+    static_libs: ["ActivityManagerPerfTestsUtils"],
+    min_sdk_version: "25",
+    sdk_version: "current",
+}
diff --git a/tests/ActivityManagerPerfTests/test-app/Android.mk b/tests/ActivityManagerPerfTests/test-app/Android.mk
deleted file mode 100644
index 33d15d2..0000000
--- a/tests/ActivityManagerPerfTests/test-app/Android.mk
+++ /dev/null
@@ -1,31 +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.
-
-LOCAL_PATH := $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_MODULE_TAGS := tests
-
-LOCAL_SRC_FILES := \
-    $(call all-java-files-under, src)
-
-LOCAL_STATIC_JAVA_LIBRARIES := \
-    ActivityManagerPerfTestsUtils
-
-LOCAL_MIN_SDK_VERSION := 25
-
-LOCAL_PACKAGE_NAME := ActivityManagerPerfTestsTestApp
-LOCAL_SDK_VERSION := current
-
-include $(BUILD_PACKAGE)
diff --git a/tests/ActivityManagerPerfTests/tests/Android.bp b/tests/ActivityManagerPerfTests/tests/Android.bp
new file mode 100644
index 0000000..268715c
--- /dev/null
+++ b/tests/ActivityManagerPerfTests/tests/Android.bp
@@ -0,0 +1,27 @@
+// 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.
+
+android_test {
+    name: "ActivityManagerPerfTests",
+    srcs: ["src/**/*.java"],
+    static_libs: [
+        "android-support-test",
+        "apct-perftests-utils",
+        "ActivityManagerPerfTestsUtils",
+    ],
+    platform_apis: true,
+    min_sdk_version: "25",
+    // For android.permission.FORCE_STOP_PACKAGES permission
+    certificate: "platform",
+}
diff --git a/tests/ActivityManagerPerfTests/tests/Android.mk b/tests/ActivityManagerPerfTests/tests/Android.mk
deleted file mode 100644
index f23a665..0000000
--- a/tests/ActivityManagerPerfTests/tests/Android.mk
+++ /dev/null
@@ -1,36 +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.
-
-LOCAL_PATH := $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_MODULE_TAGS := tests
-
-LOCAL_SRC_FILES := \
-    $(call all-java-files-under, src)
-
-LOCAL_STATIC_JAVA_LIBRARIES := \
-    android-support-test \
-    apct-perftests-utils \
-    ActivityManagerPerfTestsUtils
-
-LOCAL_PACKAGE_NAME := ActivityManagerPerfTests
-LOCAL_PRIVATE_PLATFORM_APIS := true
-
-LOCAL_MIN_SDK_VERSION := 25
-
-# For android.permission.FORCE_STOP_PACKAGES permission
-LOCAL_CERTIFICATE := platform
-
-include $(BUILD_PACKAGE)
diff --git a/tests/ActivityManagerPerfTests/utils/Android.bp b/tests/ActivityManagerPerfTests/utils/Android.bp
new file mode 100644
index 0000000..c052656
--- /dev/null
+++ b/tests/ActivityManagerPerfTests/utils/Android.bp
@@ -0,0 +1,27 @@
+// 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.
+
+java_test {
+    name: "ActivityManagerPerfTestsUtils",
+    sdk_version: "current",
+    srcs: [
+        "src/**/*.java",
+        "src/com/android/frameworks/perftests/am/util/ITimeReceiverCallback.aidl",
+    ],
+    static_libs: [
+        "android-support-test",
+        "junit",
+        "ub-uiautomator",
+    ],
+}
diff --git a/tests/ActivityManagerPerfTests/utils/Android.mk b/tests/ActivityManagerPerfTests/utils/Android.mk
deleted file mode 100644
index 60c9423..0000000
--- a/tests/ActivityManagerPerfTests/utils/Android.mk
+++ /dev/null
@@ -1,32 +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.
-
-LOCAL_PATH := $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_MODULE_TAGS := tests
-LOCAL_SDK_VERSION := current
-
-LOCAL_SRC_FILES := \
-    $(call all-java-files-under, src) \
-    src/com/android/frameworks/perftests/am/util/ITimeReceiverCallback.aidl
-
-LOCAL_STATIC_JAVA_LIBRARIES := \
-    android-support-test \
-    junit \
-    ub-uiautomator
-
-LOCAL_MODULE := ActivityManagerPerfTestsUtils
-
-include $(BUILD_STATIC_JAVA_LIBRARY)
diff --git a/tests/AppLaunch/Android.bp b/tests/AppLaunch/Android.bp
new file mode 100644
index 0000000..0f07da6
--- /dev/null
+++ b/tests/AppLaunch/Android.bp
@@ -0,0 +1,13 @@
+android_test {
+    name: "AppLaunch",
+    // Only compile source java files in this apk.
+    srcs: ["src/**/*.java"],
+    platform_apis: true,
+    certificate: "platform",
+    libs: [
+        "android.test.base",
+        "android.test.runner",
+    ],
+    static_libs: ["android-support-test"],
+    test_suites: ["device-tests"],
+}
diff --git a/tests/AppLaunch/Android.mk b/tests/AppLaunch/Android.mk
deleted file mode 100644
index 1fb548b..0000000
--- a/tests/AppLaunch/Android.mk
+++ /dev/null
@@ -1,22 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_MODULE_TAGS := tests
-
-# Only compile source java files in this apk.
-LOCAL_SRC_FILES := $(call all-java-files-under, src)
-
-LOCAL_PACKAGE_NAME := AppLaunch
-LOCAL_PRIVATE_PLATFORM_APIS := true
-
-LOCAL_CERTIFICATE := platform
-LOCAL_JAVA_LIBRARIES := android.test.base android.test.runner
-
-LOCAL_STATIC_JAVA_LIBRARIES := android-support-test
-
-LOCAL_COMPATIBILITY_SUITE := device-tests
-
-include $(BUILD_PACKAGE)
-
-# Use the following include to make our test apk.
-include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/tests/AppLaunchWear/Android.bp b/tests/AppLaunchWear/Android.bp
new file mode 100644
index 0000000..6a8b382
--- /dev/null
+++ b/tests/AppLaunchWear/Android.bp
@@ -0,0 +1,13 @@
+android_test {
+    name: "AppLaunchWear",
+    // Only compile source java files in this apk.
+    srcs: ["src/**/*.java"],
+    platform_apis: true,
+    certificate: "platform",
+    libs: [
+        "android.test.base",
+        "android.test.runner",
+    ],
+    static_libs: ["android-support-test"],
+    test_suites: ["device-tests"],
+}
diff --git a/tests/AppLaunchWear/Android.mk b/tests/AppLaunchWear/Android.mk
deleted file mode 100644
index 6d08366..0000000
--- a/tests/AppLaunchWear/Android.mk
+++ /dev/null
@@ -1,22 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_MODULE_TAGS := tests
-
-# Only compile source java files in this apk.
-LOCAL_SRC_FILES := $(call all-java-files-under, src)
-
-LOCAL_PACKAGE_NAME := AppLaunchWear
-LOCAL_PRIVATE_PLATFORM_APIS := true
-
-LOCAL_CERTIFICATE := platform
-LOCAL_JAVA_LIBRARIES := android.test.base android.test.runner
-
-LOCAL_STATIC_JAVA_LIBRARIES := android-support-test
-
-LOCAL_COMPATIBILITY_SUITE := device-tests
-
-include $(BUILD_PACKAGE)
-
-# Use the following include to make our test apk.
-include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/tests/BackgroundDexOptServiceIntegrationTests/Android.bp b/tests/BackgroundDexOptServiceIntegrationTests/Android.bp
new file mode 100644
index 0000000..036f845
--- /dev/null
+++ b/tests/BackgroundDexOptServiceIntegrationTests/Android.bp
@@ -0,0 +1,24 @@
+//
+// 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.
+//
+
+android_test {
+    name: "BackgroundDexOptServiceIntegrationTests",
+    srcs: ["src/**/*.java"],
+    static_libs: ["android-support-test"],
+    platform_apis: true,
+    test_suites: ["device-tests"],
+    certificate: "platform",
+}
diff --git a/tests/BackgroundDexOptServiceIntegrationTests/Android.mk b/tests/BackgroundDexOptServiceIntegrationTests/Android.mk
deleted file mode 100644
index b10305d..0000000
--- a/tests/BackgroundDexOptServiceIntegrationTests/Android.mk
+++ /dev/null
@@ -1,35 +0,0 @@
-#
-# 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.
-#
-
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
-
-# We only want this apk build for tests.
-LOCAL_MODULE_TAGS := tests
-
-# Include all test java files.
-LOCAL_SRC_FILES := $(call all-java-files-under, src)
-
-LOCAL_STATIC_JAVA_LIBRARIES := \
-    android-support-test \
-
-LOCAL_PACKAGE_NAME := BackgroundDexOptServiceIntegrationTests
-LOCAL_PRIVATE_PLATFORM_APIS := true
-LOCAL_COMPATIBILITY_SUITE := device-tests
-
-LOCAL_CERTIFICATE := platform
-
-include $(BUILD_PACKAGE)
diff --git a/tests/Compatibility/Android.bp b/tests/Compatibility/Android.bp
new file mode 100644
index 0000000..a0c3761
--- /dev/null
+++ b/tests/Compatibility/Android.bp
@@ -0,0 +1,22 @@
+// 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.
+
+android_test {
+    name: "AppCompatibilityTest",
+    static_libs: ["android-support-test"],
+    // Include all test java files.
+    srcs: ["src/**/*.java"],
+    platform_apis: true,
+    certificate: "platform",
+}
diff --git a/tests/Compatibility/Android.mk b/tests/Compatibility/Android.mk
deleted file mode 100644
index 9c47a26..0000000
--- a/tests/Compatibility/Android.mk
+++ /dev/null
@@ -1,31 +0,0 @@
-# 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.
-
-LOCAL_PATH := $(call my-dir)
-include $(CLEAR_VARS)
-
-# We only want this apk build for tests.
-LOCAL_MODULE_TAGS := tests
-LOCAL_STATIC_JAVA_LIBRARIES := android-support-test
-# Include all test java files.
-LOCAL_SRC_FILES := \
-	$(call all-java-files-under, src)
-
-
-LOCAL_PACKAGE_NAME := AppCompatibilityTest
-LOCAL_PRIVATE_PLATFORM_APIS := true
-LOCAL_CERTIFICATE := platform
-include $(BUILD_PACKAGE)
-
-include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/tests/Internal/Android.bp b/tests/Internal/Android.bp
new file mode 100644
index 0000000..db3e03b
--- /dev/null
+++ b/tests/Internal/Android.bp
@@ -0,0 +1,18 @@
+android_test {
+    name: "InternalTests",
+    proto: {
+        type: "nano",
+    },
+    // Include some source files directly to be able to access package members
+    srcs: ["src/**/*.java"],
+    libs: ["android.test.runner"],
+    static_libs: [
+        "junit",
+        "android-support-test",
+        "mockito-target-minus-junit4",
+    ],
+    java_resource_dirs: ["res"],
+    certificate: "platform",
+    platform_apis: true,
+    test_suites: ["device-tests"],
+}
diff --git a/tests/Internal/Android.mk b/tests/Internal/Android.mk
deleted file mode 100644
index da56696..0000000
--- a/tests/Internal/Android.mk
+++ /dev/null
@@ -1,24 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_USE_AAPT2 := true
-LOCAL_MODULE_TAGS := tests
-
-LOCAL_PROTOC_OPTIMIZE_TYPE := nano
-
-# Include some source files directly to be able to access package members
-LOCAL_SRC_FILES := $(call all-java-files-under, src)
-
-LOCAL_JAVA_LIBRARIES := android.test.runner
-LOCAL_STATIC_JAVA_LIBRARIES := junit \
-    android-support-test \
-    mockito-target-minus-junit4
-
-LOCAL_JAVA_RESOURCE_DIRS := res
-LOCAL_CERTIFICATE := platform
-
-LOCAL_PACKAGE_NAME := InternalTests
-LOCAL_PRIVATE_PLATFORM_APIS := true
-LOCAL_COMPATIBILITY_SUITE := device-tests
-
-include $(BUILD_PACKAGE)
diff --git a/tests/JankBench/app/src/main/jni/Android.bp.converted b/tests/JankBench/app/src/main/jni/Android.bp.converted
index 9fecf15..b53c79a 100644
--- a/tests/JankBench/app/src/main/jni/Android.bp.converted
+++ b/tests/JankBench/app/src/main/jni/Android.bp.converted
@@ -12,12 +12,20 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+<<<<<<< HEAD
 cc_library_shared {
     name: "libnativebench",
     cflags: [
         "-Wno-unused-parameter",
         "-Wno-unused-variable",
     ],
+=======
+// ANDROIDMK TRANSLATION WARNING: No 'include $(CLEAR_VARS)' detected before first assignment; clearing vars now
+
+cc_library_shared {
+    name: "libnativebench",
+    cflags: ["-Wno-unused-parameter"],
+>>>>>>> Convert Android.mk file to Android.bp
     srcs: [
         "Bench.cpp",
         "WorkerPool.cpp",
diff --git a/tests/RcsTests/Android.bp b/tests/RcsTests/Android.bp
new file mode 100644
index 0000000..81c6df0
--- /dev/null
+++ b/tests/RcsTests/Android.bp
@@ -0,0 +1,17 @@
+android_test {
+    name: "RcsTests",
+    // Only compile source java files in this apk.
+    srcs: ["src/**/*.java"],
+    platform_apis: true,
+    certificate: "platform",
+    libs: [
+        "android.test.runner",
+        "android.test.base",
+    ],
+    static_libs: [
+        "junit",
+        "android-support-test",
+        "mockito-target-minus-junit4",
+        "truth-prebuilt",
+    ],
+}
diff --git a/tests/RcsTests/Android.mk b/tests/RcsTests/Android.mk
deleted file mode 100644
index 7b348d7..0000000
--- a/tests/RcsTests/Android.mk
+++ /dev/null
@@ -1,19 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_MODULE_TAGS := tests
-
-# Only compile source java files in this apk.
-LOCAL_SRC_FILES := $(call all-java-files-under, src)
-
-LOCAL_PACKAGE_NAME := RcsTests
-LOCAL_PRIVATE_PLATFORM_APIS := true
-
-LOCAL_CERTIFICATE := platform
-LOCAL_JAVA_LIBRARIES := android.test.runner android.test.base
-LOCAL_STATIC_JAVA_LIBRARIES := junit android-support-test mockito-target-minus-junit4 truth-prebuilt
-
-include $(BUILD_PACKAGE)
-
-# Use the following include to make our test apk.
-include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/tests/ServiceCrashTest/Android.bp b/tests/ServiceCrashTest/Android.bp
new file mode 100644
index 0000000..b646ae7
--- /dev/null
+++ b/tests/ServiceCrashTest/Android.bp
@@ -0,0 +1,12 @@
+android_test {
+    name: "ServiceCrashTest",
+    // Only compile source java files in this apk.
+    srcs: ["src/**/*.java"],
+    platform_apis: true,
+    certificate: "platform",
+    libs: ["android.test.base"],
+    static_libs: [
+        "compatibility-device-util",
+        "android-support-test",
+    ],
+}
diff --git a/tests/ServiceCrashTest/Android.mk b/tests/ServiceCrashTest/Android.mk
deleted file mode 100644
index d1f6450..0000000
--- a/tests/ServiceCrashTest/Android.mk
+++ /dev/null
@@ -1,20 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_MODULE_TAGS := tests
-
-# Only compile source java files in this apk.
-LOCAL_SRC_FILES := $(call all-java-files-under, src)
-
-LOCAL_PACKAGE_NAME := ServiceCrashTest
-LOCAL_PRIVATE_PLATFORM_APIS := true
-
-LOCAL_CERTIFICATE := platform
-LOCAL_JAVA_LIBRARIES := android.test.base
-
-LOCAL_STATIC_JAVA_LIBRARIES := compatibility-device-util android-support-test
-
-include $(BUILD_PACKAGE)
-
-# Use the following include to make our test apk.
-include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/tests/SurfaceComposition/Android.bp b/tests/SurfaceComposition/Android.bp
new file mode 100644
index 0000000..53e4d52
--- /dev/null
+++ b/tests/SurfaceComposition/Android.bp
@@ -0,0 +1,32 @@
+// Copyright (C) 2015 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.
+
+android_test {
+    name: "SurfaceComposition",
+    // Don't include this package in any target
+    // When built, explicitly put it in the data partition.
+    dex_preopt: {
+        enabled: false,
+    },
+    optimize: {
+        enabled: false,
+    },
+    srcs: ["src/**/*.java"],
+    static_libs: ["junit"],
+    libs: [
+        "android.test.runner.stubs",
+        "android.test.base.stubs",
+    ],
+    sdk_version: "current",
+}
diff --git a/tests/SurfaceComposition/Android.mk b/tests/SurfaceComposition/Android.mk
deleted file mode 100644
index f59458d..0000000
--- a/tests/SurfaceComposition/Android.mk
+++ /dev/null
@@ -1,38 +0,0 @@
-# Copyright (C) 2015 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.
-
-LOCAL_PATH:= $(call my-dir)
-
-include $(CLEAR_VARS)
-
-# Don't include this package in any target
-LOCAL_MODULE_TAGS := tests
-# When built, explicitly put it in the data partition.
-LOCAL_MODULE_PATH := $(TARGET_OUT_DATA_APPS)
-
-LOCAL_DEX_PREOPT := false
-
-LOCAL_PROGUARD_ENABLED := disabled
-
-LOCAL_SRC_FILES := $(call all-java-files-under, src)
-
-LOCAL_STATIC_JAVA_LIBRARIES := junit
-
-LOCAL_JAVA_LIBRARIES := android.test.runner.stubs android.test.base.stubs
-
-LOCAL_PACKAGE_NAME := SurfaceComposition
-
-LOCAL_SDK_VERSION := current
-
-include $(BUILD_PACKAGE)
diff --git a/tests/UsbHostExternalManagmentTest/AoapTestDevice/Android.bp b/tests/UsbHostExternalManagmentTest/AoapTestDevice/Android.bp
new file mode 100644
index 0000000..c7e9df0
--- /dev/null
+++ b/tests/UsbHostExternalManagmentTest/AoapTestDevice/Android.bp
@@ -0,0 +1,27 @@
+// Copyright (C) 2016 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.
+//
+//
+
+//#################################################
+
+android_test {
+    name: "AoapTestDeviceApp",
+    srcs: ["src/**/*.java"],
+    resource_dirs: ["res"],
+    platform_apis: true,
+    optimize: {
+        enabled: false,
+    },
+}
diff --git a/tests/UsbHostExternalManagmentTest/AoapTestDevice/Android.mk b/tests/UsbHostExternalManagmentTest/AoapTestDevice/Android.mk
deleted file mode 100644
index cd7aaed..0000000
--- a/tests/UsbHostExternalManagmentTest/AoapTestDevice/Android.mk
+++ /dev/null
@@ -1,36 +0,0 @@
-# Copyright (C) 2016 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.
-#
-#
-
-LOCAL_PATH:= $(call my-dir)
-
-##################################################
-
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := $(call all-java-files-under, src)
-
-LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res
-
-LOCAL_PACKAGE_NAME := AoapTestDeviceApp
-LOCAL_PRIVATE_PLATFORM_APIS := true
-
-LOCAL_MODULE_TAGS := tests
-LOCAL_MODULE_PATH := $(TARGET_OUT_DATA_APPS)
-
-LOCAL_PROGUARD_ENABLED := disabled
-
-include $(BUILD_PACKAGE)
-
diff --git a/tests/UsbHostExternalManagmentTest/AoapTestHost/Android.bp b/tests/UsbHostExternalManagmentTest/AoapTestHost/Android.bp
new file mode 100644
index 0000000..6fa58cb
--- /dev/null
+++ b/tests/UsbHostExternalManagmentTest/AoapTestHost/Android.bp
@@ -0,0 +1,27 @@
+// Copyright (C) 2016 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.
+//
+//
+
+//#################################################
+
+android_test {
+    name: "AoapTestHostApp",
+    srcs: ["src/**/*.java"],
+    resource_dirs: ["res"],
+    platform_apis: true,
+    optimize: {
+        enabled: false,
+    },
+}
diff --git a/tests/UsbHostExternalManagmentTest/AoapTestHost/Android.mk b/tests/UsbHostExternalManagmentTest/AoapTestHost/Android.mk
deleted file mode 100644
index bd8a51b..0000000
--- a/tests/UsbHostExternalManagmentTest/AoapTestHost/Android.mk
+++ /dev/null
@@ -1,36 +0,0 @@
-# Copyright (C) 2016 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.
-#
-#
-
-LOCAL_PATH:= $(call my-dir)
-
-##################################################
-
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := $(call all-java-files-under, src)
-
-LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res
-
-LOCAL_PACKAGE_NAME := AoapTestHostApp
-LOCAL_PRIVATE_PLATFORM_APIS := true
-
-LOCAL_MODULE_TAGS := tests
-LOCAL_MODULE_PATH := $(TARGET_OUT_DATA_APPS)
-
-LOCAL_PROGUARD_ENABLED := disabled
-
-include $(BUILD_PACKAGE)
-
diff --git a/tests/UsbHostExternalManagmentTest/UsbHostExternalManagmentTestApp/Android.bp b/tests/UsbHostExternalManagmentTest/UsbHostExternalManagmentTestApp/Android.bp
new file mode 100644
index 0000000..edd4205
--- /dev/null
+++ b/tests/UsbHostExternalManagmentTest/UsbHostExternalManagmentTestApp/Android.bp
@@ -0,0 +1,32 @@
+// Copyright (C) 2016 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.
+//
+//
+
+//#################################################
+
+// TODO: should this be android_helper_test_app?
+android_app {
+    name: "UsbHostExternalManagementTestApp",
+    srcs: ["src/**/*.java"],
+    resource_dirs: ["res"],
+    platform_apis: true,
+    privileged: true,
+    // TODO remove tests tag
+    //LOCAL_MODULE_TAGS := tests
+    //LOCAL_MODULE_PATH := $(TARGET_OUT_DATA_APPS)
+    optimize: {
+        enabled: false,
+    },
+}
diff --git a/tests/UsbHostExternalManagmentTest/UsbHostExternalManagmentTestApp/Android.mk b/tests/UsbHostExternalManagmentTest/UsbHostExternalManagmentTestApp/Android.mk
deleted file mode 100644
index fed454e..0000000
--- a/tests/UsbHostExternalManagmentTest/UsbHostExternalManagmentTestApp/Android.mk
+++ /dev/null
@@ -1,38 +0,0 @@
-# Copyright (C) 2016 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.
-#
-#
-
-LOCAL_PATH:= $(call my-dir)
-
-##################################################
-
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := $(call all-java-files-under, src)
-
-LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res
-
-LOCAL_PACKAGE_NAME := UsbHostExternalManagementTestApp
-LOCAL_PRIVATE_PLATFORM_APIS := true
-
-LOCAL_PRIVILEGED_MODULE := true
-# TODO remove tests tag
-#LOCAL_MODULE_TAGS := tests
-#LOCAL_MODULE_PATH := $(TARGET_OUT_DATA_APPS)
-
-LOCAL_PROGUARD_ENABLED := disabled
-
-include $(BUILD_PACKAGE)
-
diff --git a/tests/UsbTests/Android.bp b/tests/UsbTests/Android.bp
new file mode 100644
index 0000000..7dc7c85b2
--- /dev/null
+++ b/tests/UsbTests/Android.bp
@@ -0,0 +1,34 @@
+//
+// 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.
+//
+
+android_test {
+    name: "UsbTests",
+    srcs: ["**/*.java"],
+    static_libs: [
+        "frameworks-base-testutils",
+        "android-support-test",
+        "mockito-target-inline-minus-junit4",
+        "platform-test-annotations",
+        "services.core",
+        "services.net",
+        "services.usb",
+        "truth-prebuilt",
+    ],
+    jni_libs: ["libdexmakerjvmtiagent"],
+    certificate: "platform",
+    platform_apis: true,
+    test_suites: ["device-tests"],
+}
diff --git a/tests/UsbTests/Android.mk b/tests/UsbTests/Android.mk
deleted file mode 100644
index 4e215cc..0000000
--- a/tests/UsbTests/Android.mk
+++ /dev/null
@@ -1,45 +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.
-#
-
-LOCAL_PATH:= $(call my-dir)
-
-include $(CLEAR_VARS)
-
-LOCAL_MODULE_TAGS := tests
-
-LOCAL_SRC_FILES := $(call all-subdir-java-files)
-
-LOCAL_STATIC_JAVA_LIBRARIES := \
-    frameworks-base-testutils \
-    android-support-test \
-    mockito-target-inline-minus-junit4 \
-    platform-test-annotations \
-    services.core \
-    services.net \
-    services.usb \
-    truth-prebuilt \
-
-LOCAL_JNI_SHARED_LIBRARIES := \
-    libdexmakerjvmtiagent \
-
-LOCAL_CERTIFICATE := platform
-
-LOCAL_PACKAGE_NAME := UsbTests
-LOCAL_PRIVATE_PLATFORM_APIS := true
-
-LOCAL_COMPATIBILITY_SUITE := device-tests
-
-include $(BUILD_PACKAGE)
diff --git a/tests/WindowAnimationJank/Android.bp b/tests/WindowAnimationJank/Android.bp
new file mode 100644
index 0000000..60e8f74
--- /dev/null
+++ b/tests/WindowAnimationJank/Android.bp
@@ -0,0 +1,25 @@
+// Copyright (C) 2015 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.
+
+android_test {
+    name: "WindowAnimationJank",
+    srcs: ["src/**/*.java"],
+    static_libs: [
+        "ub-uiautomator",
+        "ub-janktesthelper",
+        "junit",
+    ],
+    libs: ["android.test.base.stubs"],
+    sdk_version: "current",
+}
diff --git a/tests/WindowAnimationJank/Android.mk b/tests/WindowAnimationJank/Android.mk
deleted file mode 100644
index 7800a80..0000000
--- a/tests/WindowAnimationJank/Android.mk
+++ /dev/null
@@ -1,36 +0,0 @@
-# Copyright (C) 2015 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.
-
-LOCAL_PATH:= $(call my-dir)
-
-include $(CLEAR_VARS)
-
-LOCAL_MODULE_TAGS := tests
-
-LOCAL_MODULE_PATH := $(TARGET_OUT_DATA_APPS)
-
-LOCAL_SRC_FILES := $(call all-java-files-under, src)
-
-LOCAL_PACKAGE_NAME := WindowAnimationJank
-
-LOCAL_STATIC_JAVA_LIBRARIES := \
-    ub-uiautomator \
-    ub-janktesthelper \
-    junit
-
-LOCAL_JAVA_LIBRARIES := android.test.base.stubs
-
-LOCAL_SDK_VERSION := current
-
-include $(BUILD_PACKAGE)
diff --git a/tests/net/java/android/net/LinkAddressTest.java b/tests/net/java/android/net/LinkAddressTest.java
index be7bd1b..d462441b 100644
--- a/tests/net/java/android/net/LinkAddressTest.java
+++ b/tests/net/java/android/net/LinkAddressTest.java
@@ -81,14 +81,14 @@
         assertEquals(25, address.getPrefixLength());
         assertEquals(0, address.getFlags());
         assertEquals(RT_SCOPE_UNIVERSE, address.getScope());
-        assertTrue(address.isIPv4());
+        assertTrue(address.isIpv4());
 
         address = new LinkAddress(V6_ADDRESS, 127);
         assertEquals(V6_ADDRESS, address.getAddress());
         assertEquals(127, address.getPrefixLength());
         assertEquals(0, address.getFlags());
         assertEquals(RT_SCOPE_UNIVERSE, address.getScope());
-        assertTrue(address.isIPv6());
+        assertTrue(address.isIpv6());
 
         // Nonsensical flags/scopes or combinations thereof are acceptable.
         address = new LinkAddress(V6 + "/64", IFA_F_DEPRECATED | IFA_F_PERMANENT, RT_SCOPE_LINK);
@@ -96,14 +96,14 @@
         assertEquals(64, address.getPrefixLength());
         assertEquals(IFA_F_DEPRECATED | IFA_F_PERMANENT, address.getFlags());
         assertEquals(RT_SCOPE_LINK, address.getScope());
-        assertTrue(address.isIPv6());
+        assertTrue(address.isIpv6());
 
         address = new LinkAddress(V4 + "/23", 123, 456);
         assertEquals(V4_ADDRESS, address.getAddress());
         assertEquals(23, address.getPrefixLength());
         assertEquals(123, address.getFlags());
         assertEquals(456, address.getScope());
-        assertTrue(address.isIPv4());
+        assertTrue(address.isIpv4());
 
         // InterfaceAddress doesn't have a constructor. Fetch some from an interface.
         List<InterfaceAddress> addrs = NetworkInterface.getByName("lo").getInterfaceAddresses();
diff --git a/tests/net/java/android/net/LinkPropertiesTest.java b/tests/net/java/android/net/LinkPropertiesTest.java
index 9a7d487..4177291 100644
--- a/tests/net/java/android/net/LinkPropertiesTest.java
+++ b/tests/net/java/android/net/LinkPropertiesTest.java
@@ -405,8 +405,8 @@
         LinkProperties lp = new LinkProperties();
 
         // No addresses.
-        assertFalse(lp.hasIPv4Address());
-        assertFalse(lp.hasGlobalIPv6Address());
+        assertFalse(lp.hasIpv4Address());
+        assertFalse(lp.hasGlobalIpv6Address());
 
         // Addresses on stacked links don't count.
         LinkProperties stacked = new LinkProperties();
@@ -414,53 +414,53 @@
         lp.addStackedLink(stacked);
         stacked.addLinkAddress(LINKADDRV4);
         stacked.addLinkAddress(LINKADDRV6);
-        assertTrue(stacked.hasIPv4Address());
-        assertTrue(stacked.hasGlobalIPv6Address());
-        assertFalse(lp.hasIPv4Address());
-        assertFalse(lp.hasGlobalIPv6Address());
+        assertTrue(stacked.hasIpv4Address());
+        assertTrue(stacked.hasGlobalIpv6Address());
+        assertFalse(lp.hasIpv4Address());
+        assertFalse(lp.hasGlobalIpv6Address());
         lp.removeStackedLink("stacked");
-        assertFalse(lp.hasIPv4Address());
-        assertFalse(lp.hasGlobalIPv6Address());
+        assertFalse(lp.hasIpv4Address());
+        assertFalse(lp.hasGlobalIpv6Address());
 
         // Addresses on the base link.
-        // Check the return values of hasIPvXAddress and ensure the add/remove methods return true
+        // Check the return values of hasIpvXAddress and ensure the add/remove methods return true
         // iff something changes.
         assertEquals(0, lp.getLinkAddresses().size());
         assertTrue(lp.addLinkAddress(LINKADDRV6));
         assertEquals(1, lp.getLinkAddresses().size());
-        assertFalse(lp.hasIPv4Address());
-        assertTrue(lp.hasGlobalIPv6Address());
+        assertFalse(lp.hasIpv4Address());
+        assertTrue(lp.hasGlobalIpv6Address());
 
         assertTrue(lp.removeLinkAddress(LINKADDRV6));
         assertEquals(0, lp.getLinkAddresses().size());
 
         assertTrue(lp.addLinkAddress(LINKADDRV6LINKLOCAL));
         assertEquals(1, lp.getLinkAddresses().size());
-        assertFalse(lp.hasGlobalIPv6Address());
+        assertFalse(lp.hasGlobalIpv6Address());
 
         assertTrue(lp.addLinkAddress(LINKADDRV4));
         assertEquals(2, lp.getLinkAddresses().size());
-        assertTrue(lp.hasIPv4Address());
-        assertFalse(lp.hasGlobalIPv6Address());
+        assertTrue(lp.hasIpv4Address());
+        assertFalse(lp.hasGlobalIpv6Address());
 
         assertTrue(lp.addLinkAddress(LINKADDRV6));
         assertEquals(3, lp.getLinkAddresses().size());
-        assertTrue(lp.hasIPv4Address());
-        assertTrue(lp.hasGlobalIPv6Address());
+        assertTrue(lp.hasIpv4Address());
+        assertTrue(lp.hasGlobalIpv6Address());
 
         assertTrue(lp.removeLinkAddress(LINKADDRV6LINKLOCAL));
         assertEquals(2, lp.getLinkAddresses().size());
-        assertTrue(lp.hasIPv4Address());
-        assertTrue(lp.hasGlobalIPv6Address());
+        assertTrue(lp.hasIpv4Address());
+        assertTrue(lp.hasGlobalIpv6Address());
 
         // Adding an address twice has no effect.
         // Removing an address that's not present has no effect.
         assertFalse(lp.addLinkAddress(LINKADDRV4));
         assertEquals(2, lp.getLinkAddresses().size());
-        assertTrue(lp.hasIPv4Address());
+        assertTrue(lp.hasIpv4Address());
         assertTrue(lp.removeLinkAddress(LINKADDRV4));
         assertEquals(1, lp.getLinkAddresses().size());
-        assertFalse(lp.hasIPv4Address());
+        assertFalse(lp.hasIpv4Address());
         assertFalse(lp.removeLinkAddress(LINKADDRV4));
         assertEquals(1, lp.getLinkAddresses().size());
 
@@ -546,8 +546,8 @@
         assertFalse("v4only:addr+dns", lp4.isProvisioned());
         lp4.addRoute(new RouteInfo(GATEWAY1));
         assertTrue("v4only:addr+dns+route", lp4.isProvisioned());
-        assertTrue("v4only:addr+dns+route", lp4.isIPv4Provisioned());
-        assertFalse("v4only:addr+dns+route", lp4.isIPv6Provisioned());
+        assertTrue("v4only:addr+dns+route", lp4.isIpv4Provisioned());
+        assertFalse("v4only:addr+dns+route", lp4.isIpv6Provisioned());
 
         LinkProperties lp6 = new LinkProperties();
         assertFalse("v6only:empty", lp6.isProvisioned());
@@ -558,11 +558,11 @@
         lp6.addRoute(new RouteInfo(GATEWAY61));
         assertFalse("v6only:fe80+dns+route", lp6.isProvisioned());
         lp6.addLinkAddress(LINKADDRV6);
-        assertTrue("v6only:fe80+global+dns+route", lp6.isIPv6Provisioned());
+        assertTrue("v6only:fe80+global+dns+route", lp6.isIpv6Provisioned());
         assertTrue("v6only:fe80+global+dns+route", lp6.isProvisioned());
         lp6.removeLinkAddress(LINKADDRV6LINKLOCAL);
-        assertFalse("v6only:global+dns+route", lp6.isIPv4Provisioned());
-        assertTrue("v6only:global+dns+route", lp6.isIPv6Provisioned());
+        assertFalse("v6only:global+dns+route", lp6.isIpv4Provisioned());
+        assertTrue("v6only:global+dns+route", lp6.isIpv6Provisioned());
         assertTrue("v6only:global+dns+route", lp6.isProvisioned());
 
         LinkProperties lp46 = new LinkProperties();
@@ -572,12 +572,12 @@
         lp46.addDnsServer(DNS6);
         assertFalse("dualstack:missing-routes", lp46.isProvisioned());
         lp46.addRoute(new RouteInfo(GATEWAY1));
-        assertTrue("dualstack:v4-provisioned", lp46.isIPv4Provisioned());
-        assertFalse("dualstack:v4-provisioned", lp46.isIPv6Provisioned());
+        assertTrue("dualstack:v4-provisioned", lp46.isIpv4Provisioned());
+        assertFalse("dualstack:v4-provisioned", lp46.isIpv6Provisioned());
         assertTrue("dualstack:v4-provisioned", lp46.isProvisioned());
         lp46.addRoute(new RouteInfo(GATEWAY61));
-        assertTrue("dualstack:both-provisioned", lp46.isIPv4Provisioned());
-        assertTrue("dualstack:both-provisioned", lp46.isIPv6Provisioned());
+        assertTrue("dualstack:both-provisioned", lp46.isIpv4Provisioned());
+        assertTrue("dualstack:both-provisioned", lp46.isIpv6Provisioned());
         assertTrue("dualstack:both-provisioned", lp46.isProvisioned());
 
         // A link with an IPv6 address and default route, but IPv4 DNS server.
@@ -585,8 +585,8 @@
         mixed.addLinkAddress(LINKADDRV6);
         mixed.addDnsServer(DNS1);
         mixed.addRoute(new RouteInfo(GATEWAY61));
-        assertFalse("mixed:addr6+route6+dns4", mixed.isIPv4Provisioned());
-        assertFalse("mixed:addr6+route6+dns4", mixed.isIPv6Provisioned());
+        assertFalse("mixed:addr6+route6+dns4", mixed.isIpv4Provisioned());
+        assertFalse("mixed:addr6+route6+dns4", mixed.isIpv6Provisioned());
         assertFalse("mixed:addr6+route6+dns4", mixed.isProvisioned());
     }
 
@@ -617,16 +617,16 @@
         v6lp.addLinkAddress(LINKADDRV6);
         v6lp.addRoute(new RouteInfo(GATEWAY61));
         v6lp.addDnsServer(DNS6);
-        assertFalse(v6lp.isIPv4Provisioned());
-        assertTrue(v6lp.isIPv6Provisioned());
+        assertFalse(v6lp.isIpv4Provisioned());
+        assertTrue(v6lp.isIpv6Provisioned());
         assertTrue(v6lp.isProvisioned());
 
         LinkProperties v46lp = new LinkProperties(v6lp);
         v46lp.addLinkAddress(LINKADDRV4);
         v46lp.addRoute(new RouteInfo(GATEWAY1));
         v46lp.addDnsServer(DNS1);
-        assertTrue(v46lp.isIPv4Provisioned());
-        assertTrue(v46lp.isIPv6Provisioned());
+        assertTrue(v46lp.isIpv4Provisioned());
+        assertTrue(v46lp.isIpv6Provisioned());
         assertTrue(v46lp.isProvisioned());
 
         assertEquals(ProvisioningChange.STILL_PROVISIONED,
diff --git a/tests/net/java/android/net/TcpKeepalivePacketDataTest.java b/tests/net/java/android/net/TcpKeepalivePacketDataTest.java
index 1f2dd27..372ffcd 100644
--- a/tests/net/java/android/net/TcpKeepalivePacketDataTest.java
+++ b/tests/net/java/android/net/TcpKeepalivePacketDataTest.java
@@ -21,12 +21,9 @@
 import static org.junit.Assert.fail;
 
 import android.net.SocketKeepalive.InvalidPacketException;
-import android.net.TcpKeepalivePacketData.TcpSocketInfo;
 
 import com.android.internal.util.TestUtils;
 
-import libcore.net.InetAddressUtils;
-
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -37,14 +34,14 @@
 
 @RunWith(JUnit4.class)
 public final class TcpKeepalivePacketDataTest {
+    private static final byte[] IPV4_KEEPALIVE_SRC_ADDR = {10, 0, 0, 1};
+    private static final byte[] IPV4_KEEPALIVE_DST_ADDR = {10, 0, 0, 5};
 
     @Before
     public void setUp() {}
 
     @Test
-    public void testV4TcpKeepalivePacket() {
-        final InetAddress srcAddr = InetAddressUtils.parseNumericAddress("192.168.0.1");
-        final InetAddress dstAddr = InetAddressUtils.parseNumericAddress("192.168.0.10");
+    public void testV4TcpKeepalivePacket() throws Exception {
         final int srcPort = 1234;
         final int dstPort = 4321;
         final int seq = 0x11111111;
@@ -52,20 +49,28 @@
         final int wnd = 8000;
         final int wndScale = 2;
         TcpKeepalivePacketData resultData = null;
-        TcpSocketInfo testInfo = new TcpSocketInfo(
-                srcAddr, srcPort, dstAddr, dstPort, seq, ack, wnd, wndScale);
+        final TcpKeepalivePacketDataParcelable testInfo = new TcpKeepalivePacketDataParcelable();
+        testInfo.srcAddress = IPV4_KEEPALIVE_SRC_ADDR;
+        testInfo.srcPort = srcPort;
+        testInfo.dstAddress = IPV4_KEEPALIVE_DST_ADDR;
+        testInfo.dstPort = dstPort;
+        testInfo.seq = seq;
+        testInfo.ack = ack;
+        testInfo.rcvWnd = wnd;
+        testInfo.rcvWndScale = wndScale;
         try {
             resultData = TcpKeepalivePacketData.tcpKeepalivePacket(testInfo);
         } catch (InvalidPacketException e) {
             fail("InvalidPacketException: " + e);
         }
 
-        assertEquals(testInfo.srcAddress, resultData.srcAddress);
-        assertEquals(testInfo.dstAddress, resultData.dstAddress);
+        assertEquals(InetAddress.getByAddress(testInfo.srcAddress), resultData.srcAddress);
+        assertEquals(InetAddress.getByAddress(testInfo.dstAddress), resultData.dstAddress);
         assertEquals(testInfo.srcPort, resultData.srcPort);
         assertEquals(testInfo.dstPort, resultData.dstPort);
         assertEquals(testInfo.seq, resultData.tcpSeq);
         assertEquals(testInfo.ack, resultData.tcpAck);
+        assertEquals(testInfo.rcvWnd, resultData.tcpWnd);
         assertEquals(testInfo.rcvWndScale, resultData.tcpWndScale);
 
         TestUtils.assertParcelingIsLossless(resultData, TcpKeepalivePacketData.CREATOR);
@@ -78,11 +83,11 @@
         byte[] ip = new byte[4];
         buf = ByteBuffer.wrap(packet, 12, 4);
         buf.get(ip);
-        assertArrayEquals(ip, srcAddr.getAddress());
+        assertArrayEquals(ip, IPV4_KEEPALIVE_SRC_ADDR);
         // Destination IP address.
         buf = ByteBuffer.wrap(packet, 16, 4);
         buf.get(ip);
-        assertArrayEquals(ip, dstAddr.getAddress());
+        assertArrayEquals(ip, IPV4_KEEPALIVE_DST_ADDR);
 
         buf = ByteBuffer.wrap(packet, 20, 12);
         // Source port.
@@ -102,25 +107,32 @@
 
     @Test
     public void testParcel() throws Exception {
-        final InetAddress srcAddr = InetAddresses.parseNumericAddress("192.168.0.1");
-        final InetAddress dstAddr = InetAddresses.parseNumericAddress("192.168.0.10");
         final int srcPort = 1234;
         final int dstPort = 4321;
         final int sequence = 0x11111111;
         final int ack = 0x22222222;
         final int wnd = 48_000;
         final int wndScale = 2;
+        final TcpKeepalivePacketDataParcelable testInfo = new TcpKeepalivePacketDataParcelable();
+        testInfo.srcAddress = IPV4_KEEPALIVE_SRC_ADDR;
+        testInfo.srcPort = srcPort;
+        testInfo.dstAddress = IPV4_KEEPALIVE_DST_ADDR;
+        testInfo.dstPort = dstPort;
+        testInfo.seq = sequence;
+        testInfo.ack = ack;
+        testInfo.rcvWnd = wnd;
+        testInfo.rcvWndScale = wndScale;
         TcpKeepalivePacketData testData = null;
         TcpKeepalivePacketDataParcelable resultData = null;
-        TcpSocketInfo testInfo = new TcpSocketInfo(
-                srcAddr, srcPort, dstAddr, dstPort, sequence, ack, wnd, wndScale);
         testData = TcpKeepalivePacketData.tcpKeepalivePacket(testInfo);
         resultData = testData.toStableParcelable();
-        assertArrayEquals(resultData.srcAddress, srcAddr.getAddress());
-        assertArrayEquals(resultData.dstAddress, dstAddr.getAddress());
+        assertArrayEquals(resultData.srcAddress, IPV4_KEEPALIVE_SRC_ADDR);
+        assertArrayEquals(resultData.dstAddress, IPV4_KEEPALIVE_DST_ADDR);
         assertEquals(resultData.srcPort, srcPort);
         assertEquals(resultData.dstPort, dstPort);
         assertEquals(resultData.seq, sequence);
         assertEquals(resultData.ack, ack);
+        assertEquals(resultData.rcvWnd, wnd);
+        assertEquals(resultData.rcvWndScale, wndScale);
     }
 }
diff --git a/tests/net/java/android/net/apf/ApfCapabilitiesTest.java b/tests/net/java/android/net/apf/ApfCapabilitiesTest.java
new file mode 100644
index 0000000..75752c3
--- /dev/null
+++ b/tests/net/java/android/net/apf/ApfCapabilitiesTest.java
@@ -0,0 +1,50 @@
+/*
+ * 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 android.net.apf;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+
+import android.net.shared.ParcelableTestUtil;
+
+import androidx.test.filters.SmallTest;
+import androidx.test.runner.AndroidJUnit4;
+
+import com.android.internal.util.TestUtils;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class ApfCapabilitiesTest {
+    @Test
+    public void testParcelUnparcel() {
+        final ApfCapabilities caps = new ApfCapabilities(123, 456, 789);
+        ParcelableTestUtil.assertFieldCountEquals(3, ApfCapabilities.class);
+
+        TestUtils.assertParcelingIsLossless(caps, ApfCapabilities.CREATOR);
+    }
+
+    @Test
+    public void testEquals() {
+        assertEquals(new ApfCapabilities(1, 2, 3), new ApfCapabilities(1, 2, 3));
+        assertNotEquals(new ApfCapabilities(2, 2, 3), new ApfCapabilities(1, 2, 3));
+        assertNotEquals(new ApfCapabilities(1, 3, 3), new ApfCapabilities(1, 2, 3));
+        assertNotEquals(new ApfCapabilities(1, 2, 4), new ApfCapabilities(1, 2, 3));
+    }
+}
diff --git a/tests/net/java/com/android/server/ConnectivityServiceTest.java b/tests/net/java/com/android/server/ConnectivityServiceTest.java
index 3efdfd9..d3616aa 100644
--- a/tests/net/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/net/java/com/android/server/ConnectivityServiceTest.java
@@ -495,7 +495,7 @@
             try {
                 doAnswer(validateAnswer).when(mNetworkMonitor).notifyNetworkConnected();
                 doAnswer(validateAnswer).when(mNetworkMonitor).forceReevaluation(anyInt());
-                doAnswer(validateAnswer).when(mNetworkMonitor).notifyAcceptPartialConnectivity();
+                doAnswer(validateAnswer).when(mNetworkMonitor).setAcceptPartialConnectivity();
             } catch (RemoteException e) {
                 fail(e.getMessage());
             }
@@ -2550,7 +2550,7 @@
         verifyActiveNetwork(TRANSPORT_CELLULAR);
     }
 
-    // TODO: deflake and re-enable
+    // TODO(b/128426024): deflake and re-enable
     // @Test
     public void testPartialConnectivity() {
         // Register network callback.
@@ -2585,7 +2585,7 @@
         waitForIdle();
         try {
             verify(mWiFiNetworkAgent.mNetworkMonitor,
-                    timeout(TIMEOUT_MS).times(1)).notifyAcceptPartialConnectivity();
+                    timeout(TIMEOUT_MS).times(1)).setAcceptPartialConnectivity();
         } catch (RemoteException e) {
             fail(e.getMessage());
         }
@@ -2641,7 +2641,7 @@
         waitForIdle();
         try {
             verify(mWiFiNetworkAgent.mNetworkMonitor,
-                    timeout(TIMEOUT_MS).times(1)).notifyAcceptPartialConnectivity();
+                    timeout(TIMEOUT_MS).times(1)).setAcceptPartialConnectivity();
         } catch (RemoteException e) {
             fail(e.getMessage());
         }
diff --git a/tests/net/java/com/android/server/NetworkManagementServiceTest.java b/tests/net/java/com/android/server/NetworkManagementServiceTest.java
index 6fb3225..968b307 100644
--- a/tests/net/java/com/android/server/NetworkManagementServiceTest.java
+++ b/tests/net/java/com/android/server/NetworkManagementServiceTest.java
@@ -16,6 +16,7 @@
 
 package com.android.server;
 
+import static org.mockito.Mockito.doNothing;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.reset;
@@ -23,11 +24,11 @@
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.verifyNoMoreInteractions;
 
+import android.annotation.NonNull;
 import android.content.Context;
 import android.net.INetd;
+import android.net.INetdUnsolicitedEventListener;
 import android.net.LinkAddress;
-import android.net.LocalServerSocket;
-import android.net.LocalSocket;
 import android.os.BatteryStats;
 import android.os.Binder;
 import android.os.IBinder;
@@ -43,12 +44,11 @@
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
-import java.io.IOException;
-import java.io.OutputStream;
-
 /**
  * Tests for {@link NetworkManagementService}.
  */
@@ -56,16 +56,16 @@
 @SmallTest
 public class NetworkManagementServiceTest {
 
-    private static final String SOCKET_NAME = "__test__NetworkManagementServiceTest";
     private NetworkManagementService mNMService;
-    private LocalServerSocket mServerSocket;
-    private LocalSocket mSocket;
-    private OutputStream mOutputStream;
 
     @Mock private Context mContext;
     @Mock private IBatteryStats.Stub mBatteryStatsService;
     @Mock private INetd.Stub mNetdService;
 
+    @NonNull
+    @Captor
+    private ArgumentCaptor<INetdUnsolicitedEventListener> mUnsolListenerCaptor;
+
     private final SystemServices mServices = new SystemServices() {
         @Override
         public IBinder getService(String name) {
@@ -88,32 +88,15 @@
     @Before
     public void setUp() throws Exception {
         MockitoAnnotations.initMocks(this);
-
-        // Set up a sheltered test environment.
-        mServerSocket = new LocalServerSocket(SOCKET_NAME);
-
+        doNothing().when(mNetdService)
+                .registerUnsolicitedEventListener(mUnsolListenerCaptor.capture());
         // Start the service and wait until it connects to our socket.
-        mNMService = NetworkManagementService.create(mContext, SOCKET_NAME, mServices);
-        mSocket = mServerSocket.accept();
-        mOutputStream = mSocket.getOutputStream();
+        mNMService = NetworkManagementService.create(mContext, mServices);
     }
 
     @After
     public void tearDown() throws Exception {
         mNMService.shutdown();
-        // Once NetworkManagementService#shutdown() actually does something and shutdowns
-        // the underlying NativeDaemonConnector, the block below should be uncommented.
-        // if (mOutputStream != null) mOutputStream.close();
-        // if (mSocket != null) mSocket.close();
-        // if (mServerSocket != null) mServerSocket.close();
-    }
-
-    /**
-     * Sends a message on the netd socket and gives the events some time to make it back.
-     */
-    private void sendMessage(String message) throws IOException {
-        // Strings are null-terminated, so add "\0" at the end.
-        mOutputStream.write((message + "\0").getBytes());
     }
 
     private static <T> T expectSoon(T mock) {
@@ -131,125 +114,78 @@
 
         // Forget everything that happened to the mock so far, so we can explicitly verify
         // everything that happens and does not happen to it from now on.
-        reset(observer);
 
-        // Now send NetworkManagementService messages and ensure that the observer methods are
-        // called. After every valid message we expect a callback soon after; to ensure that
+        INetdUnsolicitedEventListener unsolListener = mUnsolListenerCaptor.getValue();
+        reset(observer);
+        // Now call unsolListener methods and ensure that the observer methods are
+        // called. After every method we expect a callback soon after; to ensure that
         // invalid messages don't cause any callbacks, we call verifyNoMoreInteractions at the end.
 
         /**
          * Interface changes.
          */
-        sendMessage("600 Iface added rmnet12");
+        unsolListener.onInterfaceAdded("rmnet12");
         expectSoon(observer).interfaceAdded("rmnet12");
 
-        sendMessage("600 Iface removed eth1");
+        unsolListener.onInterfaceRemoved("eth1");
         expectSoon(observer).interfaceRemoved("eth1");
 
-        sendMessage("607 Iface removed eth1");
-        // Invalid code.
-
-        sendMessage("600 Iface borked lo down");
-        // Invalid event.
-
-        sendMessage("600 Iface changed clat4 up again");
-        // Extra tokens.
-
-        sendMessage("600 Iface changed clat4 up");
+        unsolListener.onInterfaceChanged("clat4", true);
         expectSoon(observer).interfaceStatusChanged("clat4", true);
 
-        sendMessage("600 Iface linkstate rmnet0 down");
+        unsolListener.onInterfaceLinkStateChanged("rmnet0", false);
         expectSoon(observer).interfaceLinkStateChanged("rmnet0", false);
 
-        sendMessage("600 IFACE linkstate clat4 up");
-        // Invalid group.
-
         /**
          * Bandwidth control events.
          */
-        sendMessage("601 limit alert data rmnet_usb0");
+        unsolListener.onQuotaLimitReached("data", "rmnet_usb0");
         expectSoon(observer).limitReached("data", "rmnet_usb0");
 
-        sendMessage("601 invalid alert data rmnet0");
-        // Invalid group.
-
-        sendMessage("601 limit increased data rmnet0");
-        // Invalid event.
-
-
         /**
          * Interface class activity.
          */
-
-        sendMessage("613 IfaceClass active 1 1234 10012");
+        unsolListener.onInterfaceClassActivityChanged(true, 1, 1234, 0);
         expectSoon(observer).interfaceClassDataActivityChanged("1", true, 1234);
 
-        sendMessage("613 IfaceClass idle 9 5678");
+        unsolListener.onInterfaceClassActivityChanged(false, 9, 5678, 0);
         expectSoon(observer).interfaceClassDataActivityChanged("9", false, 5678);
 
-        sendMessage("613 IfaceClass reallyactive 9 4321");
+        unsolListener.onInterfaceClassActivityChanged(false, 9, 4321, 0);
         expectSoon(observer).interfaceClassDataActivityChanged("9", false, 4321);
 
-        sendMessage("613 InterfaceClass reallyactive 1");
-        // Invalid group.
-
-
         /**
          * IP address changes.
          */
-        sendMessage("614 Address updated fe80::1/64 wlan0 128 253");
+        unsolListener.onInterfaceAddressUpdated("fe80::1/64", "wlan0", 128, 253);
         expectSoon(observer).addressUpdated("wlan0", new LinkAddress("fe80::1/64", 128, 253));
 
-        // There is no "added", so we take this as "removed".
-        sendMessage("614 Address added fe80::1/64 wlan0 128 253");
+        unsolListener.onInterfaceAddressRemoved("fe80::1/64", "wlan0", 128, 253);
         expectSoon(observer).addressRemoved("wlan0", new LinkAddress("fe80::1/64", 128, 253));
 
-        sendMessage("614 Address removed 2001:db8::1/64 wlan0 1 0");
+        unsolListener.onInterfaceAddressRemoved("2001:db8::1/64", "wlan0", 1, 0);
         expectSoon(observer).addressRemoved("wlan0", new LinkAddress("2001:db8::1/64", 1, 0));
 
-        sendMessage("614 Address removed 2001:db8::1/64 wlan0 1");
-        // Not enough arguments.
-
-        sendMessage("666 Address removed 2001:db8::1/64 wlan0 1 0");
-        // Invalid code.
-
-
         /**
          * DNS information broadcasts.
          */
-        sendMessage("615 DnsInfo servers rmnet_usb0 3600 2001:db8::1");
+        unsolListener.onInterfaceDnsServerInfo("rmnet_usb0", 3600, new String[]{"2001:db8::1"});
         expectSoon(observer).interfaceDnsServerInfo("rmnet_usb0", 3600,
                 new String[]{"2001:db8::1"});
 
-        sendMessage("615 DnsInfo servers wlan0 14400 2001:db8::1,2001:db8::2");
+        unsolListener.onInterfaceDnsServerInfo("wlan0", 14400,
+                new String[]{"2001:db8::1", "2001:db8::2"});
         expectSoon(observer).interfaceDnsServerInfo("wlan0", 14400,
                 new String[]{"2001:db8::1", "2001:db8::2"});
 
         // We don't check for negative lifetimes, only for parse errors.
-        sendMessage("615 DnsInfo servers wlan0 -3600 ::1");
+        unsolListener.onInterfaceDnsServerInfo("wlan0", -3600, new String[]{"::1"});
         expectSoon(observer).interfaceDnsServerInfo("wlan0", -3600,
                 new String[]{"::1"});
 
-        sendMessage("615 DnsInfo servers wlan0 SIXHUNDRED ::1");
-        // Non-numeric lifetime.
-
-        sendMessage("615 DnsInfo servers wlan0 2001:db8::1");
-        // Missing lifetime.
-
-        sendMessage("615 DnsInfo servers wlan0 3600");
-        // No servers.
-
-        sendMessage("615 DnsInfo servers 3600 wlan0 2001:db8::1,2001:db8::2");
-        // Non-numeric lifetime.
-
-        sendMessage("615 DnsInfo wlan0 7200 2001:db8::1,2001:db8::2");
-        // Invalid tokens.
-
-        sendMessage("666 DnsInfo servers wlan0 5400 2001:db8::1");
-        // Invalid code.
-
         // No syntax checking on the addresses.
-        sendMessage("615 DnsInfo servers wlan0 600 ,::,,foo,::1,");
+        unsolListener.onInterfaceDnsServerInfo("wlan0", 600,
+                new String[]{"", "::", "", "foo", "::1"});
         expectSoon(observer).interfaceDnsServerInfo("wlan0", 600,
                 new String[]{"", "::", "", "foo", "::1"});
 
diff --git a/tests/net/java/com/android/server/connectivity/TetheringTest.java b/tests/net/java/com/android/server/connectivity/TetheringTest.java
index fdba723..6c42ac3 100644
--- a/tests/net/java/com/android/server/connectivity/TetheringTest.java
+++ b/tests/net/java/com/android/server/connectivity/TetheringTest.java
@@ -550,7 +550,7 @@
                 mTetheringDependencies.ipv6CoordinatorNotifyList) {
             NetworkState ipv6OnlyState = buildMobileUpstreamState(false, true, false);
             ipSrv.sendMessage(IpServer.CMD_IPV6_TETHER_UPDATE, 0, 0,
-                    upstreamState.linkProperties.isIPv6Provisioned()
+                    upstreamState.linkProperties.isIpv6Provisioned()
                             ? ipv6OnlyState.linkProperties
                             : null);
         }
diff --git a/tools/aapt2/Android.bp b/tools/aapt2/Android.bp
index 750fb56..3669890 100644
--- a/tools/aapt2/Android.bp
+++ b/tools/aapt2/Android.bp
@@ -187,3 +187,22 @@
     static_libs: ["libaapt2"],
     defaults: ["aapt2_defaults"],
 }
+
+// ==========================================================
+// Dist the protos
+// ==========================================================
+genrule {
+    name: "aapt2-protos",
+    tools: [":soong_zip"],
+    srcs: [
+        "Configuration.proto",
+        "Resources.proto",
+    ],
+    out: ["aapt2-protos.zip"],
+    cmd: "mkdir $(genDir)/protos && " +
+        "cp $(in) $(genDir)/protos && " +
+        "$(location :soong_zip) -o $(out) -C $(genDir)/protos -D $(genDir)/protos",
+    dist: {
+        targets: ["sdk_repo"],
+    },
+}