diff --git a/core/java/android/app/ActionBar.java b/core/java/android/app/ActionBar.java
index 04ff48c..831cac2 100644
--- a/core/java/android/app/ActionBar.java
+++ b/core/java/android/app/ActionBar.java
@@ -22,6 +22,7 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.StringRes;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.res.Configuration;
 import android.content.res.TypedArray;
@@ -210,6 +211,7 @@
      * Allow the title to wrap onto multiple lines if space is available
      * @hide pending API approval
      */
+    @UnsupportedAppUsage
     public static final int DISPLAY_TITLE_MULTIPLE_LINES = 0x20;
 
     /**
@@ -1050,6 +1052,7 @@
     }
 
     /** @hide */
+    @UnsupportedAppUsage
     public void setShowHideAnimationEnabled(boolean enabled) {
     }
 
@@ -1092,6 +1095,7 @@
     }
 
     /** @hide */
+    @UnsupportedAppUsage
     public boolean collapseActionView() {
         return false;
     }
diff --git a/core/java/android/app/Activity.java b/core/java/android/app/Activity.java
index 6638dd9..a0cfa8c 100644
--- a/core/java/android/app/Activity.java
+++ b/core/java/android/app/Activity.java
@@ -31,6 +31,7 @@
 import android.annotation.RequiresPermission;
 import android.annotation.StyleRes;
 import android.annotation.SystemApi;
+import android.annotation.UnsupportedAppUsage;
 import android.app.VoiceInteractor.Request;
 import android.app.admin.DevicePolicyManager;
 import android.app.assist.AssistContent;
@@ -735,6 +736,7 @@
      */
     public static final int FINISH_TASK_WITH_ACTIVITY = 2;
 
+    @UnsupportedAppUsage
     static final String FRAGMENTS_TAG = "android:fragments";
     private static final String LAST_AUTOFILL_ID = "android:lastAutofillId";
 
@@ -768,22 +770,38 @@
     private SparseArray<ManagedDialog> mManagedDialogs;
 
     // set by the thread after the constructor and before onCreate(Bundle savedInstanceState) is called.
+    @UnsupportedAppUsage
     private Instrumentation mInstrumentation;
+    @UnsupportedAppUsage
     private IBinder mToken;
+    @UnsupportedAppUsage
     private int mIdent;
+    @UnsupportedAppUsage
     /*package*/ String mEmbeddedID;
+    @UnsupportedAppUsage
     private Application mApplication;
+    @UnsupportedAppUsage
     /*package*/ Intent mIntent;
+    @UnsupportedAppUsage
     /*package*/ String mReferrer;
+    @UnsupportedAppUsage
     private ComponentName mComponent;
+    @UnsupportedAppUsage
     /*package*/ ActivityInfo mActivityInfo;
+    @UnsupportedAppUsage
     /*package*/ ActivityThread mMainThread;
+    @UnsupportedAppUsage
     Activity mParent;
+    @UnsupportedAppUsage
     boolean mCalled;
+    @UnsupportedAppUsage
     /*package*/ boolean mResumed;
+    @UnsupportedAppUsage
     /*package*/ boolean mStopped;
+    @UnsupportedAppUsage
     boolean mFinished;
     boolean mStartedActivity;
+    @UnsupportedAppUsage
     private boolean mDestroyed;
     private boolean mDoReportFullyDrawn = true;
     private boolean mRestoredFromBundle;
@@ -795,7 +813,9 @@
     /*package*/ boolean mTemporaryPause = false;
     /** true if the activity is being destroyed in order to recreate it with a new configuration */
     /*package*/ boolean mChangingConfigurations = false;
+    @UnsupportedAppUsage
     /*package*/ int mConfigChangeFlags;
+    @UnsupportedAppUsage
     /*package*/ Configuration mCurrentConfig;
     private SearchManager mSearchManager;
     private MenuInflater mMenuInflater;
@@ -810,25 +830,34 @@
         ArrayMap<String, LoaderManager> loaders;
         VoiceInteractor voiceInteractor;
     }
+    @UnsupportedAppUsage
     /* package */ NonConfigurationInstances mLastNonConfigurationInstances;
 
+    @UnsupportedAppUsage
     private Window mWindow;
 
+    @UnsupportedAppUsage
     private WindowManager mWindowManager;
     /*package*/ View mDecor = null;
+    @UnsupportedAppUsage
     /*package*/ boolean mWindowAdded = false;
     /*package*/ boolean mVisibleFromServer = false;
+    @UnsupportedAppUsage
     /*package*/ boolean mVisibleFromClient = true;
     /*package*/ ActionBar mActionBar = null;
     private boolean mEnableDefaultActionBarUp;
 
+    @UnsupportedAppUsage
     private VoiceInteractor mVoiceInteractor;
 
+    @UnsupportedAppUsage
     private CharSequence mTitle;
     private int mTitleColor = 0;
 
     // we must have a handler before the FragmentController is constructed
+    @UnsupportedAppUsage
     final Handler mHandler = new Handler();
+    @UnsupportedAppUsage
     final FragmentController mFragments = FragmentController.createController(new HostCallbacks());
 
     private static final class ManagedCursor {
@@ -847,8 +876,10 @@
     private final ArrayList<ManagedCursor> mManagedCursors = new ArrayList<>();
 
     @GuardedBy("this")
+    @UnsupportedAppUsage
     int mResultCode = RESULT_CANCELED;
     @GuardedBy("this")
+    @UnsupportedAppUsage
     Intent mResultData = null;
 
     private TranslucentConversionListener mTranslucentCallback;
@@ -872,6 +903,7 @@
 
     private Thread mUiThread;
 
+    @UnsupportedAppUsage
     ActivityTransitionState mActivityTransitionState = new ActivityTransitionState();
     SharedElementCallback mEnterTransitionListener = SharedElementCallback.NULL_CALLBACK;
     SharedElementCallback mExitTransitionListener = SharedElementCallback.NULL_CALLBACK;
@@ -1663,6 +1695,7 @@
      *
      * @param outState place to store the saved state.
      */
+    @UnsupportedAppUsage
     private void saveManagedDialogs(Bundle outState) {
         if (mManagedDialogs == null) {
             return;
@@ -2521,6 +2554,7 @@
      * @deprecated Use {@link CursorLoader} instead.
      */
     @Deprecated
+    @UnsupportedAppUsage
     public final Cursor managedQuery(Uri uri, String[] projection, String selection,
             String sortOrder) {
         Cursor c = getContentResolver().query(uri, projection, selection, null, sortOrder);
@@ -2641,6 +2675,7 @@
      * @hide
      */
     @Deprecated
+    @UnsupportedAppUsage
     public void setPersistent(boolean isPersistent) {
     }
 
@@ -4663,6 +4698,7 @@
     /**
      * @hide Implement to provide correct calling token.
      */
+    @UnsupportedAppUsage
     public void startActivityForResultAsUser(Intent intent, int requestCode, UserHandle user) {
         startActivityForResultAsUser(intent, requestCode, null, user);
     }
@@ -4708,6 +4744,7 @@
     /**
      * @hide Implement to provide correct calling token.
      */
+    @UnsupportedAppUsage
     public void startActivityAsUser(Intent intent, UserHandle user) {
         startActivityAsUser(intent, null, user);
     }
@@ -5271,6 +5308,7 @@
      * @hide
      */
     @Override
+    @UnsupportedAppUsage
     public void startActivityForResult(
             String who, Intent intent, int requestCode, @Nullable Bundle options) {
         Uri referrer = onProvideReferrer();
@@ -5597,6 +5635,7 @@
      * Finishes the current activity and specifies whether to remove the task associated with this
      * activity.
      */
+    @UnsupportedAppUsage
     private void finish(int finishTask) {
         if (mParent == null) {
             int resultCode;
@@ -6521,6 +6560,7 @@
      * @return The ActivityOptions passed to {@link #convertToTranslucent}.
      * @hide
      */
+    @UnsupportedAppUsage
     ActivityOptions getActivityOptions() {
         try {
             return ActivityOptions.fromBundle(
@@ -7041,10 +7081,12 @@
 
     // ------------------ Internal API ------------------
 
+    @UnsupportedAppUsage
     final void setParent(Activity parent) {
         mParent = parent;
     }
 
+    @UnsupportedAppUsage
     final void attach(Context context, ActivityThread aThread,
             Instrumentation instr, IBinder token, int ident,
             Application application, Intent intent, ActivityInfo info,
@@ -7117,6 +7159,7 @@
     }
 
     /** @hide */
+    @UnsupportedAppUsage
     public final IBinder getActivityToken() {
         return mParent != null ? mParent.getActivityToken() : mToken;
     }
@@ -7131,6 +7174,7 @@
         performCreate(icicle, null);
     }
 
+    @UnsupportedAppUsage
     final void performCreate(Bundle icicle, PersistableBundle persistentState) {
         mCanEnterPictureInPicture = true;
         restoreHasCurrentPermissionRequest(icicle);
@@ -7431,6 +7475,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public final boolean isResumed() {
         return mResumed;
     }
@@ -7448,6 +7493,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     void dispatchActivityResult(String who, int requestCode, int resultCode, Intent data,
             String reason) {
         if (false) Log.v(
@@ -7815,6 +7861,7 @@
      * @param disable {@code true} to disable preview screenshots; {@code false} otherwise.
      * @hide
      */
+    @UnsupportedAppUsage
     public void setDisablePreviewScreenshots(boolean disable) {
         try {
             ActivityTaskManager.getService().setDisablePreviewScreenshots(mToken, disable);
@@ -7878,6 +7925,7 @@
      * @hide
      */
     @RequiresPermission(CONTROL_REMOTE_APP_TRANSITION_ANIMATIONS)
+    @UnsupportedAppUsage
     public void registerRemoteAnimations(RemoteAnimationDefinition definition) {
         try {
             ActivityTaskManager.getService().registerRemoteAnimations(mToken, definition);
diff --git a/core/java/android/app/ActivityGroup.java b/core/java/android/app/ActivityGroup.java
index 228067c..d4aa01b 100644
--- a/core/java/android/app/ActivityGroup.java
+++ b/core/java/android/app/ActivityGroup.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.Intent;
 import android.os.Bundle;
 
@@ -37,6 +38,7 @@
      * This field should be made private, so it is hidden from the SDK.
      * {@hide}
      */
+    @UnsupportedAppUsage
     protected LocalActivityManager mLocalActivityManager;
     
     public ActivityGroup() {
diff --git a/core/java/android/app/ActivityManager.java b/core/java/android/app/ActivityManager.java
index 1105ed6..63ffa8b 100644
--- a/core/java/android/app/ActivityManager.java
+++ b/core/java/android/app/ActivityManager.java
@@ -27,6 +27,7 @@
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
 import android.annotation.TestApi;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
@@ -123,6 +124,7 @@
 public class ActivityManager {
     private static String TAG = "ActivityManager";
 
+    @UnsupportedAppUsage
     private final Context mContext;
 
     private static volatile boolean sSystemReady = false;
@@ -425,6 +427,7 @@
      * for a startActivity operation.
      * @hide
      */
+    @UnsupportedAppUsage
     public static final int INTENT_SENDER_ACTIVITY = 2;
 
     /**
@@ -488,18 +491,22 @@
 
     /** @hide Process is hosting the current top activities.  Note that this covers
      * all activities that are visible to the user. */
+    @UnsupportedAppUsage
     public static final int PROCESS_STATE_TOP = 2;
 
     /** @hide Process is hosting a foreground service. */
+    @UnsupportedAppUsage
     public static final int PROCESS_STATE_FOREGROUND_SERVICE = 3;
 
     /** @hide Process is hosting a foreground service due to a system binding. */
+    @UnsupportedAppUsage
     public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 4;
 
     /** @hide Process is important to the user, and something they are aware of. */
     public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 5;
 
     /** @hide Process is important to the user, but not something they are aware of. */
+    @UnsupportedAppUsage
     public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 6;
 
     /** @hide Process is in the background transient so we will try to keep running. */
@@ -511,12 +518,14 @@
     /** @hide Process is in the background running a service.  Unlike oom_adj, this level
      * is used for both the normal running in background state and the executing
      * operations state. */
+    @UnsupportedAppUsage
     public static final int PROCESS_STATE_SERVICE = 9;
 
     /** @hide Process is in the background running a receiver.   Note that from the
      * perspective of oom_adj, receivers run at a higher foreground level, but for our
      * prioritization here that is not necessary and putting them below services means
      * many fewer changes in some process states as they receive broadcasts. */
+    @UnsupportedAppUsage
     public static final int PROCESS_STATE_RECEIVER = 10;
 
     /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */
@@ -527,12 +536,14 @@
     public static final int PROCESS_STATE_HEAVY_WEIGHT = 12;
 
     /** @hide Process is in the background but hosts the home activity. */
+    @UnsupportedAppUsage
     public static final int PROCESS_STATE_HOME = 13;
 
     /** @hide Process is in the background but hosts the last shown activity. */
     public static final int PROCESS_STATE_LAST_ACTIVITY = 14;
 
     /** @hide Process is being cached for later use and contains activities. */
+    @UnsupportedAppUsage
     public static final int PROCESS_STATE_CACHED_ACTIVITY = 15;
 
     /** @hide Process is being cached for later use and is a client of another cached
@@ -679,6 +690,7 @@
 
     Point mAppTaskThumbnailSize;
 
+    @UnsupportedAppUsage
     /*package*/ ActivityManager(Context context, Handler handler) {
         mContext = context;
     }
@@ -810,6 +822,7 @@
     }
 
     /** @hide */
+    @UnsupportedAppUsage
     static public int staticGetMemoryClass() {
         // Really brain dead right now -- just take this from the configured
         // vm heap size, and assume it is in megabytes and thus ends with "m".
@@ -856,6 +869,7 @@
     }
 
     /** @hide */
+    @UnsupportedAppUsage
     public static boolean isLowRamDeviceStatic() {
         return RoSystemProperties.CONFIG_LOW_RAM ||
                 (Build.IS_DEBUGGABLE && DEVELOPMENT_FORCE_LOW_RAM);
@@ -879,6 +893,7 @@
      * (which tends to consume a lot more RAM).
      * @hide
      */
+    @UnsupportedAppUsage
     static public boolean isHighEndGfx() {
         return !isLowRamDeviceStatic()
                 && !RoSystemProperties.CONFIG_AVOID_GFX_ACCEL
@@ -903,6 +918,7 @@
      * @deprecated Use {@link ActivityTaskManager#getMaxRecentTasksStatic()}
      */
     @Deprecated
+    @UnsupportedAppUsage
     static public int getMaxRecentTasksStatic() {
         return ActivityTaskManager.getMaxRecentTasksStatic();
     }
@@ -1122,6 +1138,7 @@
          * Sets the icon for this task description.
          * @hide
          */
+        @UnsupportedAppUsage
         public void setIcon(Bitmap icon) {
             mIcon = icon;
         }
@@ -1174,11 +1191,13 @@
         }
 
         /** @hide */
+        @UnsupportedAppUsage
         public Bitmap getInMemoryIcon() {
             return mIcon;
         }
 
         /** @hide */
+        @UnsupportedAppUsage
         public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) {
             if (iconFilename != null) {
                 try {
@@ -1202,6 +1221,7 @@
          * @return The background color.
          * @hide
          */
+        @UnsupportedAppUsage
         public int getBackgroundColor() {
             return mColorBackground;
         }
@@ -1763,6 +1783,7 @@
         /**
          * @return The graphic buffer representing the screenshot.
          */
+        @UnsupportedAppUsage
         public GraphicBuffer getSnapshot() {
             return mSnapshot;
         }
@@ -1770,6 +1791,7 @@
         /**
          * @return The screen orientation the screenshot was taken in.
          */
+        @UnsupportedAppUsage
         public int getOrientation() {
             return mOrientation;
         }
@@ -1778,6 +1800,7 @@
          * @return The system/content insets on the snapshot. These can be clipped off in order to
          *         remove any areas behind system bars in the snapshot.
          */
+        @UnsupportedAppUsage
         public Rect getContentInsets() {
             return mContentInsets;
         }
@@ -1785,6 +1808,7 @@
         /**
          * @return Whether this snapshot is a down-sampled version of the full resolution.
          */
+        @UnsupportedAppUsage
         public boolean isReducedResolution() {
             return mReducedResolution;
         }
@@ -1793,6 +1817,7 @@
          * @return Whether or not the snapshot is a real snapshot or an app-theme generated snapshot
          * due to the task having a secure window or having previews disabled.
          */
+        @UnsupportedAppUsage
         public boolean isRealSnapshot() {
             return mIsRealSnapshot;
         }
@@ -1823,6 +1848,7 @@
         /**
          * @return The scale this snapshot was taken in.
          */
+        @UnsupportedAppUsage
         public float getScale() {
             return mScale;
         }
@@ -2163,12 +2189,16 @@
         public boolean lowMemory;
 
         /** @hide */
+        @UnsupportedAppUsage
         public long hiddenAppThreshold;
         /** @hide */
+        @UnsupportedAppUsage
         public long secondaryServerThreshold;
         /** @hide */
+        @UnsupportedAppUsage
         public long visibleAppThreshold;
         /** @hide */
+        @UnsupportedAppUsage
         public long foregroundAppThreshold;
 
         public MemoryInfo() {
@@ -2238,17 +2268,28 @@
      * @hide
      */
     public static class StackInfo implements Parcelable {
+        @UnsupportedAppUsage
         public int stackId;
+        @UnsupportedAppUsage
         public Rect bounds = new Rect();
+        @UnsupportedAppUsage
         public int[] taskIds;
+        @UnsupportedAppUsage
         public String[] taskNames;
+        @UnsupportedAppUsage
         public Rect[] taskBounds;
+        @UnsupportedAppUsage
         public int[] taskUserIds;
+        @UnsupportedAppUsage
         public ComponentName topActivity;
+        @UnsupportedAppUsage
         public int displayId;
+        @UnsupportedAppUsage
         public int userId;
+        @UnsupportedAppUsage
         public boolean visible;
         // Index of the stack in the display's stack list, can be used for comparison of stack order
+        @UnsupportedAppUsage
         public int position;
         /**
          * The full configuration the stack is currently running in.
@@ -2338,6 +2379,7 @@
             readFromParcel(source);
         }
 
+        @UnsupportedAppUsage
         public String toString(String prefix) {
             StringBuilder sb = new StringBuilder(256);
             sb.append(prefix); sb.append("Stack id="); sb.append(stackId);
@@ -2375,6 +2417,7 @@
      */
     @RequiresPermission(anyOf={Manifest.permission.CLEAR_APP_USER_DATA,
             Manifest.permission.ACCESS_INSTANT_APPS})
+    @UnsupportedAppUsage
     public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) {
         try {
             return getService().clearApplicationUserData(packageName, false,
@@ -2592,6 +2635,7 @@
          * persistent system app.
          * @hide
          */
+        @UnsupportedAppUsage
         public static final int FLAG_PERSISTENT = 1<<1;
 
         /**
@@ -2599,6 +2643,7 @@
          * persistent system app.
          * @hide
          */
+        @UnsupportedAppUsage
         public static final int FLAG_HAS_ACTIVITIES = 1<<2;
 
         /**
@@ -2606,6 +2651,7 @@
          * {@link #FLAG_CANT_SAVE_STATE}.
          * @hide
          */
+        @UnsupportedAppUsage
         public int flags;
 
         /**
@@ -2759,6 +2805,7 @@
          * will be passed to a client, use {@link #procStateToImportanceForClient}.
          * @hide
          */
+        @UnsupportedAppUsage
         public static @Importance int procStateToImportance(int procState) {
             if (procState == PROCESS_STATE_NONEXISTENT) {
                 return IMPORTANCE_GONE;
@@ -2911,6 +2958,7 @@
          * Current process state, as per PROCESS_STATE_* constants.
          * @hide
          */
+        @UnsupportedAppUsage
         public int processState;
 
         /**
@@ -3299,6 +3347,7 @@
      * it allowing them to break other applications by stopping their
      * services, removing their alarms, etc.
      */
+    @UnsupportedAppUsage
     public void forceStopPackageAsUser(String packageName, int userId) {
         try {
             getService().forceStopPackage(packageName, userId);
@@ -3475,6 +3524,7 @@
     }*/
 
     /** @hide */
+    @UnsupportedAppUsage
     public static int checkComponentPermission(String permission, int uid,
             int owningUid, boolean exported) {
         // Root, system server get to do everything.
@@ -3582,6 +3632,7 @@
      * @param userid the user's id. Zero indicates the default user.
      * @hide
      */
+    @UnsupportedAppUsage
     public boolean switchUser(int userid) {
         try {
             return getService().switchUser(userid);
@@ -3625,6 +3676,7 @@
      * @param userId the user's id. Zero indicates the default user.
      * @hide
      */
+    @UnsupportedAppUsage
     public boolean isUserRunning(int userId) {
         try {
             return getService().isUserRunning(userId, 0);
@@ -3756,6 +3808,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public static IActivityManager getService() {
         return IActivityManagerSingleton.get();
     }
@@ -3764,6 +3817,7 @@
         return ActivityTaskManager.getService();
     }
 
+    @UnsupportedAppUsage
     private static final Singleton<IActivityManager> IActivityManagerSingleton =
             new Singleton<IActivityManager>() {
                 @Override
diff --git a/core/java/android/app/ActivityManagerNative.java b/core/java/android/app/ActivityManagerNative.java
index 4c558f3..37509e1 100644
--- a/core/java/android/app/ActivityManagerNative.java
+++ b/core/java/android/app/ActivityManagerNative.java
@@ -15,6 +15,7 @@
  */
 
 package android.app;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Intent;
 import android.os.IBinder;
 
@@ -30,6 +31,7 @@
      *
      * @deprecated use IActivityManager.Stub.asInterface instead.
      */
+    @UnsupportedAppUsage
     static public IActivityManager asInterface(IBinder obj) {
         return IActivityManager.Stub.asInterface(obj);
     }
@@ -39,6 +41,7 @@
      *
      * @deprecated use ActivityManager.getService instead.
      */
+    @UnsupportedAppUsage
     static public IActivityManager getDefault() {
         return ActivityManager.getService();
     }
@@ -48,6 +51,7 @@
      *
      * @deprecated use ActivityManagerInternal.isSystemReady instead.
      */
+    @UnsupportedAppUsage
     static public boolean isSystemReady() {
         return ActivityManager.isSystemReady();
     }
@@ -55,6 +59,7 @@
     /**
      * @deprecated use ActivityManager.broadcastStickyIntent instead.
      */
+    @UnsupportedAppUsage
     static public void broadcastStickyIntent(Intent intent, String permission, int userId) {
         broadcastStickyIntent(intent, permission, AppOpsManager.OP_NONE, userId);
     }
diff --git a/core/java/android/app/ActivityOptions.java b/core/java/android/app/ActivityOptions.java
index 8914535..a056b24 100644
--- a/core/java/android/app/ActivityOptions.java
+++ b/core/java/android/app/ActivityOptions.java
@@ -25,6 +25,7 @@
 import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
 import android.annotation.TestApi;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
@@ -357,6 +358,7 @@
      * supply these options as the options Bundle when starting an activity.
      * @hide
      */
+    @UnsupportedAppUsage
     public static ActivityOptions makeCustomAnimation(Context context,
             int enterResId, int exitResId, Handler handler, OnAnimationStartedListener listener) {
         ActivityOptions opts = new ActivityOptions();
@@ -582,6 +584,7 @@
      * thumbnails are aspect scaled to/from a new location.
      * @hide
      */
+    @UnsupportedAppUsage
     public static ActivityOptions makeMultiThumbFutureAspectScaleAnimation(Context context,
             Handler handler, IAppTransitionAnimationSpecsFuture specsFuture,
             OnAnimationStartedListener listener, boolean scaleUp) {
@@ -847,6 +850,7 @@
      * @hide
      */
     @RequiresPermission(CONTROL_REMOTE_APP_TRANSITION_ANIMATIONS)
+    @UnsupportedAppUsage
     public static ActivityOptions makeRemoteAnimation(
             RemoteAnimationAdapter remoteAnimationAdapter) {
         final ActivityOptions opts = new ActivityOptions();
@@ -1278,6 +1282,7 @@
     }
 
     /** @hide */
+    @UnsupportedAppUsage
     public void setSplitScreenCreateMode(int splitScreenCreateMode) {
         mSplitScreenCreateMode = splitScreenCreateMode;
     }
diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index 2a3fc04..eee21d0 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -27,6 +27,7 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.UnsupportedAppUsage;
 import android.app.assist.AssistContent;
 import android.app.assist.AssistStructure;
 import android.app.backup.BackupAgent;
@@ -249,15 +250,21 @@
     @GuardedBy("mNetworkPolicyLock")
     private long mNetworkBlockSeq = INVALID_PROC_STATE_SEQ;
 
+    @UnsupportedAppUsage
     private ContextImpl mSystemContext;
     private ContextImpl mSystemUiContext;
 
+    @UnsupportedAppUsage
     static volatile IPackageManager sPackageManager;
 
+    @UnsupportedAppUsage
     final ApplicationThread mAppThread = new ApplicationThread();
+    @UnsupportedAppUsage
     final Looper mLooper = Looper.myLooper();
+    @UnsupportedAppUsage
     final H mH = new H();
     final Executor mExecutor = new HandlerExecutor(mH);
+    @UnsupportedAppUsage
     final ArrayMap<IBinder, ActivityClientRecord> mActivities = new ArrayMap<>();
     /** The activities to be truly destroyed (not include relaunch). */
     final Map<IBinder, ClientTransactionItem> mActivitiesToBeDestroyed =
@@ -266,28 +273,40 @@
     // be reported when next we idle.
     ActivityClientRecord mNewActivities = null;
     // Number of activities that are currently visible on-screen.
+    @UnsupportedAppUsage
     int mNumVisibleActivities = 0;
     ArrayList<WeakReference<AssistStructure>> mLastAssistStructures = new ArrayList<>();
     private int mLastSessionId;
+    @UnsupportedAppUsage
     final ArrayMap<IBinder, Service> mServices = new ArrayMap<>();
+    @UnsupportedAppUsage
     AppBindData mBoundApplication;
     Profiler mProfiler;
+    @UnsupportedAppUsage
     int mCurDefaultDisplayDpi;
+    @UnsupportedAppUsage
     boolean mDensityCompatMode;
+    @UnsupportedAppUsage
     Configuration mConfiguration;
     Configuration mCompatConfiguration;
+    @UnsupportedAppUsage
     Application mInitialApplication;
+    @UnsupportedAppUsage
     final ArrayList<Application> mAllApplications
             = new ArrayList<Application>();
     // set of instantiated backup agents, keyed by package name
     final ArrayMap<String, BackupAgent> mBackupAgents = new ArrayMap<String, BackupAgent>();
     /** Reference to singleton {@link ActivityThread} */
+    @UnsupportedAppUsage
     private static volatile ActivityThread sCurrentActivityThread;
+    @UnsupportedAppUsage
     Instrumentation mInstrumentation;
     String mInstrumentationPackageName = null;
+    @UnsupportedAppUsage
     String mInstrumentationAppDir = null;
     String[] mInstrumentationSplitAppDirs = null;
     String mInstrumentationLibDir = null;
+    @UnsupportedAppUsage
     String mInstrumentedAppDir = null;
     String[] mInstrumentedSplitAppDirs = null;
     String mInstrumentedLibDir = null;
@@ -307,16 +326,20 @@
     // or window manager or anything that depends on them while holding this lock.
     // These LoadedApk are only valid for the userId that we're running as.
     @GuardedBy("mResourcesManager")
+    @UnsupportedAppUsage
     final ArrayMap<String, WeakReference<LoadedApk>> mPackages = new ArrayMap<>();
     @GuardedBy("mResourcesManager")
+    @UnsupportedAppUsage
     final ArrayMap<String, WeakReference<LoadedApk>> mResourcePackages = new ArrayMap<>();
     @GuardedBy("mResourcesManager")
     final ArrayList<ActivityClientRecord> mRelaunchingActivities = new ArrayList<>();
     @GuardedBy("mResourcesManager")
+    @UnsupportedAppUsage
     Configuration mPendingConfiguration = null;
     // An executor that performs multi-step transactions.
     private final TransactionExecutor mTransactionExecutor = new TransactionExecutor(this);
 
+    @UnsupportedAppUsage
     private final ResourcesManager mResourcesManager;
 
     private static final class ProviderKey {
@@ -344,12 +367,16 @@
     }
 
     // The lock of mProviderMap protects the following variables.
+    @UnsupportedAppUsage
     final ArrayMap<ProviderKey, ProviderClientRecord> mProviderMap
         = new ArrayMap<ProviderKey, ProviderClientRecord>();
+    @UnsupportedAppUsage
     final ArrayMap<IBinder, ProviderRefCount> mProviderRefCountMap
         = new ArrayMap<IBinder, ProviderRefCount>();
+    @UnsupportedAppUsage
     final ArrayMap<IBinder, ProviderClientRecord> mLocalProviders
         = new ArrayMap<IBinder, ProviderClientRecord>();
+    @UnsupportedAppUsage
     final ArrayMap<ComponentName, ProviderClientRecord> mLocalProvidersByName
             = new ArrayMap<ComponentName, ProviderClientRecord>();
 
@@ -366,26 +393,32 @@
     final GcIdler mGcIdler = new GcIdler();
     boolean mGcIdlerScheduled = false;
 
+    @UnsupportedAppUsage
     static volatile Handler sMainThreadHandler;  // set once in main()
 
     Bundle mCoreSettings = null;
 
     /** Activity client record, used for bookkeeping for the real {@link Activity} instance. */
     public static final class ActivityClientRecord {
+        @UnsupportedAppUsage
         public IBinder token;
         int ident;
+        @UnsupportedAppUsage
         Intent intent;
         String referrer;
         IVoiceInteractor voiceInteractor;
         Bundle state;
         PersistableBundle persistentState;
+        @UnsupportedAppUsage
         Activity activity;
         Window window;
         Activity parent;
         String embeddedID;
         Activity.NonConfigurationInstances lastNonConfigurationInstances;
         // TODO(lifecycler): Use mLifecycleState instead.
+        @UnsupportedAppUsage
         boolean paused;
+        @UnsupportedAppUsage
         boolean stopped;
         boolean hideForNow;
         Configuration newConfig;
@@ -399,8 +432,11 @@
 
         ProfilerInfo profilerInfo;
 
+        @UnsupportedAppUsage
         ActivityInfo activityInfo;
+        @UnsupportedAppUsage
         CompatibilityInfo compatInfo;
+        @UnsupportedAppUsage
         public LoadedApk packageInfo;
 
         List<ResultInfo> pendingResults;
@@ -412,12 +448,14 @@
 
         Window mPendingRemoveWindow;
         WindowManager mPendingRemoveWindowManager;
+        @UnsupportedAppUsage
         boolean mPreserveWindow;
 
         @LifecycleState
         private int mLifecycleState = PRE_ON_CREATE;
 
         @VisibleForTesting
+        @UnsupportedAppUsage
         public ActivityClientRecord() {
             this.isForward = false;
             init();
@@ -553,8 +591,11 @@
 
     final class ProviderClientRecord {
         final String[] mNames;
+        @UnsupportedAppUsage
         final IContentProvider mProvider;
+        @UnsupportedAppUsage
         final ContentProvider mLocalProvider;
+        @UnsupportedAppUsage
         final ContentProviderHolder mHolder;
 
         ProviderClientRecord(String[] names, IContentProvider provider,
@@ -574,8 +615,11 @@
             this.intent = intent;
         }
 
+        @UnsupportedAppUsage
         Intent intent;
+        @UnsupportedAppUsage
         ActivityInfo info;
+        @UnsupportedAppUsage
         CompatibilityInfo compatInfo;
         public String toString() {
             return "ReceiverData{intent=" + intent + " packageName=" +
@@ -597,9 +641,13 @@
     }
 
     static final class CreateServiceData {
+        @UnsupportedAppUsage
         IBinder token;
+        @UnsupportedAppUsage
         ServiceInfo info;
+        @UnsupportedAppUsage
         CompatibilityInfo compatInfo;
+        @UnsupportedAppUsage
         Intent intent;
         public String toString() {
             return "CreateServiceData{token=" + token + " className="
@@ -609,7 +657,9 @@
     }
 
     static final class BindServiceData {
+        @UnsupportedAppUsage
         IBinder token;
+        @UnsupportedAppUsage
         Intent intent;
         boolean rebind;
         public String toString() {
@@ -618,10 +668,12 @@
     }
 
     static final class ServiceArgsData {
+        @UnsupportedAppUsage
         IBinder token;
         boolean taskRemoved;
         int startId;
         int flags;
+        @UnsupportedAppUsage
         Intent args;
         public String toString() {
             return "ServiceArgsData{token=" + token + " startId=" + startId
@@ -630,20 +682,28 @@
     }
 
     static final class AppBindData {
+        @UnsupportedAppUsage
         LoadedApk info;
+        @UnsupportedAppUsage
         String processName;
+        @UnsupportedAppUsage
         ApplicationInfo appInfo;
+        @UnsupportedAppUsage
         List<ProviderInfo> providers;
         ComponentName instrumentationName;
+        @UnsupportedAppUsage
         Bundle instrumentationArgs;
         IInstrumentationWatcher instrumentationWatcher;
         IUiAutomationConnection instrumentationUiAutomationConnection;
         int debugMode;
         boolean enableBinderTracking;
         boolean trackAllocation;
+        @UnsupportedAppUsage
         boolean restrictedBackupMode;
+        @UnsupportedAppUsage
         boolean persistent;
         Configuration config;
+        @UnsupportedAppUsage
         CompatibilityInfo compatInfo;
         String buildSerial;
 
@@ -1561,16 +1621,24 @@
 
     class H extends Handler {
         public static final int BIND_APPLICATION        = 110;
+        @UnsupportedAppUsage
         public static final int EXIT_APPLICATION        = 111;
+        @UnsupportedAppUsage
         public static final int RECEIVER                = 113;
+        @UnsupportedAppUsage
         public static final int CREATE_SERVICE          = 114;
+        @UnsupportedAppUsage
         public static final int SERVICE_ARGS            = 115;
+        @UnsupportedAppUsage
         public static final int STOP_SERVICE            = 116;
 
         public static final int CONFIGURATION_CHANGED   = 118;
         public static final int CLEAN_UP_CONTEXT        = 119;
+        @UnsupportedAppUsage
         public static final int GC_WHEN_IDLE            = 120;
+        @UnsupportedAppUsage
         public static final int BIND_SERVICE            = 121;
+        @UnsupportedAppUsage
         public static final int UNBIND_SERVICE          = 122;
         public static final int DUMP_SERVICE            = 123;
         public static final int LOW_MEMORY              = 124;
@@ -1578,21 +1646,26 @@
         public static final int CREATE_BACKUP_AGENT     = 128;
         public static final int DESTROY_BACKUP_AGENT    = 129;
         public static final int SUICIDE                 = 130;
+        @UnsupportedAppUsage
         public static final int REMOVE_PROVIDER         = 131;
         public static final int ENABLE_JIT              = 132;
         public static final int DISPATCH_PACKAGE_BROADCAST = 133;
+        @UnsupportedAppUsage
         public static final int SCHEDULE_CRASH          = 134;
         public static final int DUMP_HEAP               = 135;
         public static final int DUMP_ACTIVITY           = 136;
         public static final int SLEEPING                = 137;
         public static final int SET_CORE_SETTINGS       = 138;
         public static final int UPDATE_PACKAGE_COMPATIBILITY_INFO = 139;
+        @UnsupportedAppUsage
         public static final int DUMP_PROVIDER           = 141;
         public static final int UNSTABLE_PROVIDER_DIED  = 142;
         public static final int REQUEST_ASSIST_CONTEXT_EXTRAS = 143;
         public static final int TRANSLUCENT_CONVERSION_COMPLETE = 144;
+        @UnsupportedAppUsage
         public static final int INSTALL_PROVIDER        = 145;
         public static final int ON_NEW_ACTIVITY_OPTIONS = 146;
+        @UnsupportedAppUsage
         public static final int ENTER_ANIMATION_COMPLETE = 149;
         public static final int START_BINDER_TRACKING = 150;
         public static final int STOP_BINDER_TRACKING_AND_DUMP = 151;
@@ -1881,6 +1954,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     public static ActivityThread currentActivityThread() {
         return sCurrentActivityThread;
     }
@@ -1895,23 +1969,27 @@
                 ? am.getApplication().getOpPackageName() : null;
     }
 
+    @UnsupportedAppUsage
     public static String currentPackageName() {
         ActivityThread am = currentActivityThread();
         return (am != null && am.mBoundApplication != null)
             ? am.mBoundApplication.appInfo.packageName : null;
     }
 
+    @UnsupportedAppUsage
     public static String currentProcessName() {
         ActivityThread am = currentActivityThread();
         return (am != null && am.mBoundApplication != null)
             ? am.mBoundApplication.processName : null;
     }
 
+    @UnsupportedAppUsage
     public static Application currentApplication() {
         ActivityThread am = currentActivityThread();
         return am != null ? am.mInitialApplication : null;
     }
 
+    @UnsupportedAppUsage
     public static IPackageManager getPackageManager() {
         if (sPackageManager != null) {
             //Slog.v("PackageManager", "returning cur default = " + sPackageManager);
@@ -1949,10 +2027,12 @@
                 displayId, null, pkgInfo.getCompatibilityInfo(), pkgInfo.getClassLoader());
     }
 
+    @UnsupportedAppUsage
     final Handler getHandler() {
         return mH;
     }
 
+    @UnsupportedAppUsage
     public final LoadedApk getPackageInfo(String packageName, CompatibilityInfo compatInfo,
             int flags) {
         return getPackageInfo(packageName, compatInfo, flags, UserHandle.myUserId());
@@ -2007,6 +2087,7 @@
         return null;
     }
 
+    @UnsupportedAppUsage
     public final LoadedApk getPackageInfo(ApplicationInfo ai, CompatibilityInfo compatInfo,
             int flags) {
         boolean includeCode = (flags&Context.CONTEXT_INCLUDE_CODE) != 0;
@@ -2034,11 +2115,13 @@
     }
 
     @Override
+    @UnsupportedAppUsage
     public final LoadedApk getPackageInfoNoCheck(ApplicationInfo ai,
             CompatibilityInfo compatInfo) {
         return getPackageInfo(ai, compatInfo, null, false, true, false);
     }
 
+    @UnsupportedAppUsage
     public final LoadedApk peekPackageInfo(String packageName, boolean includeCode) {
         synchronized (mResourcesManager) {
             WeakReference<LoadedApk> ref;
@@ -2098,15 +2181,18 @@
         }
     }
 
+    @UnsupportedAppUsage
     ActivityThread() {
         mResourcesManager = ResourcesManager.getInstance();
     }
 
+    @UnsupportedAppUsage
     public ApplicationThread getApplicationThread()
     {
         return mAppThread;
     }
 
+    @UnsupportedAppUsage
     public Instrumentation getInstrumentation()
     {
         return mInstrumentation;
@@ -2121,6 +2207,7 @@
         return mProfiler.profileFile;
     }
 
+    @UnsupportedAppUsage
     public Looper getLooper() {
         return mLooper;
     }
@@ -2129,14 +2216,17 @@
         return mExecutor;
     }
 
+    @UnsupportedAppUsage
     public Application getApplication() {
         return mInitialApplication;
     }
 
+    @UnsupportedAppUsage
     public String getProcessName() {
         return mBoundApplication.processName;
     }
 
+    @UnsupportedAppUsage
     public ContextImpl getSystemContext() {
         synchronized (this) {
             if (mSystemContext == null) {
@@ -2172,6 +2262,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     void scheduleGcIdler() {
         if (!mGcIdlerScheduled) {
             mGcIdlerScheduled = true;
@@ -2668,6 +2759,7 @@
         proto.end(asToken);
     }
 
+    @UnsupportedAppUsage
     public void registerOnActivityPausedListener(Activity activity,
             OnActivityPausedListener listener) {
         synchronized (mOnPauseListeners) {
@@ -2680,6 +2772,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     public void unregisterOnActivityPausedListener(Activity activity,
             OnActivityPausedListener listener) {
         synchronized (mOnPauseListeners) {
@@ -2701,6 +2794,7 @@
         return aInfo;
     }
 
+    @UnsupportedAppUsage
     public final Activity startActivityNow(Activity parent, String id,
         Intent intent, ActivityInfo activityInfo, IBinder token, Bundle state,
         Activity.NonConfigurationInstances lastNonConfigurationInstances) {
@@ -2731,6 +2825,7 @@
         return performLaunchActivity(r, null /* customIntent */);
     }
 
+    @UnsupportedAppUsage
     public final Activity getActivity(IBinder token) {
         final ActivityClientRecord activityRecord = mActivities.get(token);
         return activityRecord != null ? activityRecord.activity : null;
@@ -2741,6 +2836,7 @@
         return mActivities.get(token);
     }
 
+    @UnsupportedAppUsage
     public final void sendActivityResult(
             IBinder token, String id, int requestCode,
             int resultCode, Intent data) {
@@ -3122,6 +3218,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     void performNewIntents(IBinder token, List<ReferrerIntent> intents, boolean andPause) {
         final ActivityClientRecord r = mActivities.get(token);
         if (r == null) {
@@ -3342,6 +3439,7 @@
         return sCurrentBroadcastIntent.get();
     }
 
+    @UnsupportedAppUsage
     private void handleReceiver(ReceiverData data) {
         // If we are getting ready to gc after going to the background, well
         // we are back active so skip it.
@@ -3513,6 +3611,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     private void handleCreateService(CreateServiceData data) {
         // If we are getting ready to gc after going to the background, well
         // we are back active so skip it.
@@ -4055,6 +4154,7 @@
     }
 
     /** Called from {@link LocalActivityManager}. */
+    @UnsupportedAppUsage
     final void performStopActivity(IBinder token, boolean saveState, String reason) {
         ActivityClientRecord r = mActivities.get(token);
         performStopActivityInner(r, null /* stopInfo */, false /* keepShown */, saveState,
@@ -5561,6 +5661,7 @@
         LocaleList.setDefault(new LocaleList(bestLocale, newLocaleList));
     }
 
+    @UnsupportedAppUsage
     private void handleBindApplication(AppBindData data) {
         // Register the UI Thread as a sensitive thread to the runtime.
         VMRuntime.registerSensitiveThread();
@@ -5950,6 +6051,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     private void installContentProviders(
             Context context, List<ProviderInfo> providers) {
         final ArrayList<ContentProviderHolder> results = new ArrayList<>();
@@ -5979,6 +6081,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     public final IContentProvider acquireProvider(
             Context c, String auth, int userId, boolean stable) {
         final IContentProvider provider = acquireExistingProvider(c, auth, userId, stable);
@@ -6093,6 +6196,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     public final IContentProvider acquireExistingProvider(
             Context c, String auth, int userId, boolean stable) {
         synchronized (mProviderMap) {
@@ -6123,6 +6227,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     public final boolean releaseProvider(IContentProvider provider, boolean stable) {
         if (provider == null) {
             return false;
@@ -6255,6 +6360,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     final void handleUnstableProviderDied(IBinder provider, boolean fromClient) {
         synchronized (mProviderMap) {
             handleUnstableProviderDiedLocked(provider, fromClient);
@@ -6356,6 +6462,7 @@
      * and returns the existing provider.  This can happen due to concurrent
      * attempts to acquire the same provider.
      */
+    @UnsupportedAppUsage
     private ContentProviderHolder installProvider(Context context,
             ContentProviderHolder holder, ProviderInfo info,
             boolean noisy, boolean noReleaseNeeded, boolean stable) {
@@ -6503,6 +6610,7 @@
         System.exit(0);
     }
 
+    @UnsupportedAppUsage
     private void attach(boolean system, long startSeq) {
         sCurrentActivityThread = this;
         mSystemThread = system;
@@ -6587,6 +6695,7 @@
         ViewRootImpl.addConfigCallback(configChangedCallback);
     }
 
+    @UnsupportedAppUsage
     public static ActivityThread systemMain() {
         // The system process on low-memory devices do not get to use hardware
         // accelerated drawing, since this can add too much overhead to the
@@ -6601,6 +6710,7 @@
         return thread;
     }
 
+    @UnsupportedAppUsage
     public final void installSystemProviders(List<ProviderInfo> providers) {
         if (providers != null) {
             installContentProviders(mInitialApplication, providers);
diff --git a/core/java/android/app/ActivityView.java b/core/java/android/app/ActivityView.java
index c7fa33d..c879db8 100644
--- a/core/java/android/app/ActivityView.java
+++ b/core/java/android/app/ActivityView.java
@@ -17,6 +17,7 @@
 package android.app;
 
 import android.annotation.NonNull;
+import android.annotation.UnsupportedAppUsage;
 import android.app.ActivityManager.StackInfo;
 import android.content.Context;
 import android.content.Intent;
@@ -74,6 +75,7 @@
     private final CloseGuard mGuard = CloseGuard.get();
     private boolean mOpened; // Protected by mGuard.
 
+    @UnsupportedAppUsage
     public ActivityView(Context context) {
         this(context, null /* attrs */);
     }
@@ -156,6 +158,7 @@
      * @see StateCallback
      * @see #startActivity(PendingIntent)
      */
+    @UnsupportedAppUsage
     public void startActivity(@NonNull Intent intent) {
         final ActivityOptions options = prepareActivityOptions();
         getContext().startActivity(intent, options.toBundle());
@@ -198,6 +201,7 @@
      * @see StateCallback
      * @see #startActivity(Intent)
      */
+    @UnsupportedAppUsage
     public void startActivity(@NonNull PendingIntent pendingIntent) {
         final ActivityOptions options = prepareActivityOptions();
         try {
@@ -231,6 +235,7 @@
      *
      * @see StateCallback
      */
+    @UnsupportedAppUsage
     public void release() {
         if (mVirtualDisplay == null) {
             throw new IllegalStateException(
diff --git a/core/java/android/app/AlarmManager.java b/core/java/android/app/AlarmManager.java
index f76f911..ec4c4db 100644
--- a/core/java/android/app/AlarmManager.java
+++ b/core/java/android/app/AlarmManager.java
@@ -21,6 +21,7 @@
 import android.annotation.SdkConstant;
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.Intent;
 import android.os.Build;
@@ -129,8 +130,10 @@
             "android.app.action.NEXT_ALARM_CLOCK_CHANGED";
 
     /** @hide */
+    @UnsupportedAppUsage
     public static final long WINDOW_EXACT = 0;
     /** @hide */
+    @UnsupportedAppUsage
     public static final long WINDOW_HEURISTIC = -1;
 
     /**
@@ -138,6 +141,7 @@
      * other alarms.
      * @hide
      */
+    @UnsupportedAppUsage
     public static final int FLAG_STANDALONE = 1<<0;
 
     /**
@@ -145,6 +149,7 @@
      * is, for example, an alarm for an alarm clock.
      * @hide
      */
+    @UnsupportedAppUsage
     public static final int FLAG_WAKE_FROM_IDLE = 1<<1;
 
     /**
@@ -165,6 +170,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public static final int FLAG_ALLOW_WHILE_IDLE_UNRESTRICTED = 1<<3;
 
     /**
@@ -174,8 +180,10 @@
      * avoids scheduling any further alarms until the marker alarm is executed.
      * @hide
      */
+    @UnsupportedAppUsage
     public static final int FLAG_IDLE_UNTIL = 1<<4;
 
+    @UnsupportedAppUsage
     private final IAlarmManager mService;
     private final Context mContext;
     private final String mPackageName;
@@ -628,6 +636,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public void set(@AlarmType int type, long triggerAtMillis, long windowMillis,
             long intervalMillis, String tag, OnAlarmListener listener, Handler targetHandler,
             WorkSource workSource) {
diff --git a/core/java/android/app/AlertDialog.java b/core/java/android/app/AlertDialog.java
index 07b4b9c..dbc8c5d 100644
--- a/core/java/android/app/AlertDialog.java
+++ b/core/java/android/app/AlertDialog.java
@@ -21,6 +21,7 @@
 import android.annotation.DrawableRes;
 import android.annotation.StringRes;
 import android.annotation.StyleRes;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.res.ResourceId;
@@ -69,6 +70,7 @@
  * </div>
  */
 public class AlertDialog extends Dialog implements DialogInterface {
+    @UnsupportedAppUsage
     private AlertController mAlert;
 
     /**
@@ -449,6 +451,7 @@
     }
 
     public static class Builder {
+        @UnsupportedAppUsage
         private final AlertController.AlertParams P;
 
         /**
@@ -1049,6 +1052,7 @@
          * @deprecated Set the padding on the view itself.
          */
         @Deprecated
+        @UnsupportedAppUsage
         public Builder setView(View view, int viewSpacingLeft, int viewSpacingTop,
                 int viewSpacingRight, int viewSpacingBottom) {
             P.mView = view;
@@ -1080,6 +1084,7 @@
         /**
          * @hide
          */
+        @UnsupportedAppUsage
         public Builder setRecycleOnMeasureEnabled(boolean enabled) {
             P.mRecycleOnMeasure = enabled;
             return this;
diff --git a/core/java/android/app/AppGlobals.java b/core/java/android/app/AppGlobals.java
index 2b6db8b..1f737b6 100644
--- a/core/java/android/app/AppGlobals.java
+++ b/core/java/android/app/AppGlobals.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.pm.IPackageManager;
 
 /**
@@ -27,6 +28,7 @@
      * Return the first Application object made in the process.
      * NOTE: Only works on the main thread.
      */
+    @UnsupportedAppUsage
     public static Application getInitialApplication() {
         return ActivityThread.currentApplication();
     }
@@ -35,6 +37,7 @@
      * Return the package name of the first .apk loaded into the process.
      * NOTE: Only works on the main thread.
      */
+    @UnsupportedAppUsage
     public static String getInitialPackage() {
         return ActivityThread.currentPackageName();
     }
@@ -43,6 +46,7 @@
      * Return the raw interface to the package manager.
      * @return The package manager.
      */
+    @UnsupportedAppUsage
     public static IPackageManager getPackageManager() {
         return ActivityThread.getPackageManager();
     }
diff --git a/core/java/android/app/AppOpsManager.java b/core/java/android/app/AppOpsManager.java
index c3404a5..fd92174 100644
--- a/core/java/android/app/AppOpsManager.java
+++ b/core/java/android/app/AppOpsManager.java
@@ -22,6 +22,7 @@
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
 import android.annotation.TestApi;
+import android.annotation.UnsupportedAppUsage;
 import android.app.usage.UsageStatsManager;
 import android.content.Context;
 import android.media.AudioAttributes.AttributeUsage;
@@ -75,6 +76,7 @@
      */
 
     final Context mContext;
+    @UnsupportedAppUsage
     final IAppOpsService mService;
     final ArrayMap<OnOpChangedListener, IAppOpsCallback> mModeWatchers = new ArrayMap<>();
     final ArrayMap<OnOpActiveChangedListener, IAppOpsActiveCallback> mActiveWatchers =
@@ -191,168 +193,246 @@
     //  - add the op to the appropriate template in AppOpsState.OpsTemplate (settings app)
 
     /** @hide No operation specified. */
+    @UnsupportedAppUsage
     public static final int OP_NONE = -1;
     /** @hide Access to coarse location information. */
+    @UnsupportedAppUsage
     public static final int OP_COARSE_LOCATION = 0;
     /** @hide Access to fine location information. */
+    @UnsupportedAppUsage
     public static final int OP_FINE_LOCATION = 1;
     /** @hide Causing GPS to run. */
+    @UnsupportedAppUsage
     public static final int OP_GPS = 2;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_VIBRATE = 3;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_READ_CONTACTS = 4;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_WRITE_CONTACTS = 5;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_READ_CALL_LOG = 6;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_WRITE_CALL_LOG = 7;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_READ_CALENDAR = 8;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_WRITE_CALENDAR = 9;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_WIFI_SCAN = 10;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_POST_NOTIFICATION = 11;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_NEIGHBORING_CELLS = 12;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_CALL_PHONE = 13;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_READ_SMS = 14;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_WRITE_SMS = 15;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_RECEIVE_SMS = 16;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_RECEIVE_EMERGECY_SMS = 17;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_RECEIVE_MMS = 18;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_RECEIVE_WAP_PUSH = 19;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_SEND_SMS = 20;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_READ_ICC_SMS = 21;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_WRITE_ICC_SMS = 22;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_WRITE_SETTINGS = 23;
     /** @hide Required to draw on top of other apps. */
     @TestApi
     public static final int OP_SYSTEM_ALERT_WINDOW = 24;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_ACCESS_NOTIFICATIONS = 25;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_CAMERA = 26;
     /** @hide */
     @TestApi
     public static final int OP_RECORD_AUDIO = 27;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_PLAY_AUDIO = 28;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_READ_CLIPBOARD = 29;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_WRITE_CLIPBOARD = 30;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_TAKE_MEDIA_BUTTONS = 31;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_TAKE_AUDIO_FOCUS = 32;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_AUDIO_MASTER_VOLUME = 33;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_AUDIO_VOICE_VOLUME = 34;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_AUDIO_RING_VOLUME = 35;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_AUDIO_MEDIA_VOLUME = 36;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_AUDIO_ALARM_VOLUME = 37;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_AUDIO_NOTIFICATION_VOLUME = 38;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_AUDIO_BLUETOOTH_VOLUME = 39;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_WAKE_LOCK = 40;
     /** @hide Continually monitoring location data. */
+    @UnsupportedAppUsage
     public static final int OP_MONITOR_LOCATION = 41;
     /** @hide Continually monitoring location data with a relatively high power request. */
+    @UnsupportedAppUsage
     public static final int OP_MONITOR_HIGH_POWER_LOCATION = 42;
     /** @hide Retrieve current usage stats via {@link UsageStatsManager}. */
+    @UnsupportedAppUsage
     public static final int OP_GET_USAGE_STATS = 43;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_MUTE_MICROPHONE = 44;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_TOAST_WINDOW = 45;
     /** @hide Capture the device's display contents and/or audio */
+    @UnsupportedAppUsage
     public static final int OP_PROJECT_MEDIA = 46;
     /** @hide Activate a VPN connection without user intervention. */
+    @UnsupportedAppUsage
     public static final int OP_ACTIVATE_VPN = 47;
     /** @hide Access the WallpaperManagerAPI to write wallpapers. */
+    @UnsupportedAppUsage
     public static final int OP_WRITE_WALLPAPER = 48;
     /** @hide Received the assist structure from an app. */
+    @UnsupportedAppUsage
     public static final int OP_ASSIST_STRUCTURE = 49;
     /** @hide Received a screenshot from assist. */
+    @UnsupportedAppUsage
     public static final int OP_ASSIST_SCREENSHOT = 50;
     /** @hide Read the phone state. */
+    @UnsupportedAppUsage
     public static final int OP_READ_PHONE_STATE = 51;
     /** @hide Add voicemail messages to the voicemail content provider. */
+    @UnsupportedAppUsage
     public static final int OP_ADD_VOICEMAIL = 52;
     /** @hide Access APIs for SIP calling over VOIP or WiFi. */
+    @UnsupportedAppUsage
     public static final int OP_USE_SIP = 53;
     /** @hide Intercept outgoing calls. */
+    @UnsupportedAppUsage
     public static final int OP_PROCESS_OUTGOING_CALLS = 54;
     /** @hide User the fingerprint API. */
+    @UnsupportedAppUsage
     public static final int OP_USE_FINGERPRINT = 55;
     /** @hide Access to body sensors such as heart rate, etc. */
+    @UnsupportedAppUsage
     public static final int OP_BODY_SENSORS = 56;
     /** @hide Read previously received cell broadcast messages. */
+    @UnsupportedAppUsage
     public static final int OP_READ_CELL_BROADCASTS = 57;
     /** @hide Inject mock location into the system. */
+    @UnsupportedAppUsage
     public static final int OP_MOCK_LOCATION = 58;
     /** @hide Read external storage. */
+    @UnsupportedAppUsage
     public static final int OP_READ_EXTERNAL_STORAGE = 59;
     /** @hide Write external storage. */
+    @UnsupportedAppUsage
     public static final int OP_WRITE_EXTERNAL_STORAGE = 60;
     /** @hide Turned on the screen. */
+    @UnsupportedAppUsage
     public static final int OP_TURN_SCREEN_ON = 61;
     /** @hide Get device accounts. */
+    @UnsupportedAppUsage
     public static final int OP_GET_ACCOUNTS = 62;
     /** @hide Control whether an application is allowed to run in the background. */
+    @UnsupportedAppUsage
     public static final int OP_RUN_IN_BACKGROUND = 63;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_AUDIO_ACCESSIBILITY_VOLUME = 64;
     /** @hide Read the phone number. */
+    @UnsupportedAppUsage
     public static final int OP_READ_PHONE_NUMBERS = 65;
     /** @hide Request package installs through package installer */
+    @UnsupportedAppUsage
     public static final int OP_REQUEST_INSTALL_PACKAGES = 66;
     /** @hide Enter picture-in-picture. */
+    @UnsupportedAppUsage
     public static final int OP_PICTURE_IN_PICTURE = 67;
     /** @hide Instant app start foreground service. */
+    @UnsupportedAppUsage
     public static final int OP_INSTANT_APP_START_FOREGROUND = 68;
     /** @hide Answer incoming phone calls */
+    @UnsupportedAppUsage
     public static final int OP_ANSWER_PHONE_CALLS = 69;
     /** @hide Run jobs when in background */
+    @UnsupportedAppUsage
     public static final int OP_RUN_ANY_IN_BACKGROUND = 70;
     /** @hide Change Wi-Fi connectivity state */
+    @UnsupportedAppUsage
     public static final int OP_CHANGE_WIFI_STATE = 71;
     /** @hide Request package deletion through package installer */
+    @UnsupportedAppUsage
     public static final int OP_REQUEST_DELETE_PACKAGES = 72;
     /** @hide Bind an accessibility service. */
+    @UnsupportedAppUsage
     public static final int OP_BIND_ACCESSIBILITY_SERVICE = 73;
     /** @hide Continue handover of a call from another app */
+    @UnsupportedAppUsage
     public static final int OP_ACCEPT_HANDOVER = 74;
     /** @hide Create and Manage IPsec Tunnels */
+    @UnsupportedAppUsage
     public static final int OP_MANAGE_IPSEC_TUNNELS = 75;
     /** @hide Any app start foreground service. */
+    @UnsupportedAppUsage
     public static final int OP_START_FOREGROUND = 76;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int OP_BLUETOOTH_SCAN = 77;
     /** @hide Use the face authentication API. */
     public static final int OP_USE_FACE = 78;
     /** @hide */
+    @UnsupportedAppUsage
     public static final int _NUM_OP = 79;
 
     /** Access to coarse location information. */
@@ -916,6 +996,7 @@
      * This optionally maps a permission to an operation.  If there
      * is no permission associated with an operation, it is null.
      */
+    @UnsupportedAppUsage
     private static String[] sOpPerms = new String[] {
             android.Manifest.permission.ACCESS_COARSE_LOCATION,
             android.Manifest.permission.ACCESS_FINE_LOCATION,
@@ -1404,6 +1485,7 @@
      * Retrieve the op switch that controls the given operation.
      * @hide
      */
+    @UnsupportedAppUsage
     public static int opToSwitch(int op) {
         return sOpToSwitch[op];
     }
@@ -1412,6 +1494,7 @@
      * Retrieve a non-localized name for the operation, for debugging output.
      * @hide
      */
+    @UnsupportedAppUsage
     public static String opToName(int op) {
         if (op == OP_NONE) return "NONE";
         return op < sOpNames.length ? sOpNames[op] : ("Unknown(" + op + ")");
@@ -1507,6 +1590,7 @@
         /**
          * @hide
          */
+        @UnsupportedAppUsage
         public PackageOps(String packageName, int uid, List<OpEntry> entries) {
             mPackageName = packageName;
             mUid = uid;
@@ -1621,6 +1705,7 @@
         /**
          * @hide
          */
+        @UnsupportedAppUsage
         public int getOp() {
             return mOp;
         }
@@ -1642,6 +1727,7 @@
         /**
          * @hide
          */
+        @UnsupportedAppUsage
         public long getTime() {
             return maxTime(mTimes, 0, _NUM_UID_STATE);
         }
@@ -1814,6 +1900,7 @@
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.GET_APP_OPS_STATS)
+    @UnsupportedAppUsage
     public List<AppOpsManager.PackageOps> getPackagesForOps(int[] ops) {
         try {
             return mService.getPackagesForOps(ops);
@@ -1944,6 +2031,7 @@
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.MANAGE_APP_OPS_MODES)
+    @UnsupportedAppUsage
     public void setRestriction(int code, @AttributeUsage int usage, int mode,
             String[] exceptionPackages) {
         try {
@@ -1956,6 +2044,7 @@
 
     /** @hide */
     @RequiresPermission(android.Manifest.permission.MANAGE_APP_OPS_MODES)
+    @UnsupportedAppUsage
     public void resetAllModes() {
         try {
             mService.resetAllModes(mContext.getUserId(), null);
@@ -2356,6 +2445,7 @@
      * @throws SecurityException If the app has been configured to crash on this op.
      * @hide
      */
+    @UnsupportedAppUsage
     public int checkOp(int op, int uid, String packageName) {
         try {
             int mode = mService.checkOperation(op, uid, packageName);
@@ -2373,6 +2463,7 @@
      * returns {@link #MODE_ERRORED}.
      * @hide
      */
+    @UnsupportedAppUsage
     public int checkOpNoThrow(int op, int uid, String packageName) {
         try {
             int mode = mService.checkOperation(op, uid, packageName);
@@ -2443,6 +2534,7 @@
      * @throws SecurityException If the app has been configured to crash on this op.
      * @hide
      */
+    @UnsupportedAppUsage
     public int noteOp(int op, int uid, String packageName) {
         final int mode = noteOpNoThrow(op, uid, packageName);
         if (mode == MODE_ERRORED) {
@@ -2469,6 +2561,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public int noteProxyOp(int op, String proxiedPackageName) {
         int mode = noteProxyOpNoThrow(op, proxiedPackageName);
         if (mode == MODE_ERRORED) {
@@ -2499,6 +2592,7 @@
      * returns {@link #MODE_ERRORED}.
      * @hide
      */
+    @UnsupportedAppUsage
     public int noteOpNoThrow(int op, int uid, String packageName) {
         try {
             return mService.noteOperation(op, uid, packageName);
@@ -2508,11 +2602,13 @@
     }
 
     /** @hide */
+    @UnsupportedAppUsage
     public int noteOp(int op) {
         return noteOp(op, Process.myUid(), mContext.getOpPackageName());
     }
 
     /** @hide */
+    @UnsupportedAppUsage
     public static IBinder getToken(IAppOpsService service) {
         synchronized (AppOpsManager.class) {
             if (sToken != null) {
diff --git a/core/java/android/app/Application.java b/core/java/android/app/Application.java
index 6a58d9b..636366d 100644
--- a/core/java/android/app/Application.java
+++ b/core/java/android/app/Application.java
@@ -19,6 +19,7 @@
 import android.annotation.CallSuper;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ComponentCallbacks;
 import android.content.ComponentCallbacks2;
 import android.content.Context;
@@ -50,13 +51,17 @@
  */
 public class Application extends ContextWrapper implements ComponentCallbacks2 {
     private static final String TAG = "Application";
+    @UnsupportedAppUsage
     private ArrayList<ComponentCallbacks> mComponentCallbacks =
             new ArrayList<ComponentCallbacks>();
+    @UnsupportedAppUsage
     private ArrayList<ActivityLifecycleCallbacks> mActivityLifecycleCallbacks =
             new ArrayList<ActivityLifecycleCallbacks>();
+    @UnsupportedAppUsage
     private ArrayList<OnProvideAssistDataListener> mAssistCallbacks = null;
 
     /** @hide */
+    @UnsupportedAppUsage
     public LoadedApk mLoadedApk;
 
     public interface ActivityLifecycleCallbacks {
@@ -210,11 +215,13 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     /* package */ final void attach(Context context) {
         attachBaseContext(context);
         mLoadedApk = ContextImpl.getImpl(context).mPackageInfo;
     }
 
+    @UnsupportedAppUsage
     /* package */ void dispatchActivityCreated(@NonNull Activity activity,
             @Nullable Bundle savedInstanceState) {
         Object[] callbacks = collectActivityLifecycleCallbacks();
@@ -226,6 +233,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     /* package */ void dispatchActivityStarted(@NonNull Activity activity) {
         Object[] callbacks = collectActivityLifecycleCallbacks();
         if (callbacks != null) {
@@ -235,6 +243,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     /* package */ void dispatchActivityResumed(@NonNull Activity activity) {
         Object[] callbacks = collectActivityLifecycleCallbacks();
         if (callbacks != null) {
@@ -244,6 +253,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     /* package */ void dispatchActivityPaused(@NonNull Activity activity) {
         Object[] callbacks = collectActivityLifecycleCallbacks();
         if (callbacks != null) {
@@ -253,6 +263,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     /* package */ void dispatchActivityStopped(@NonNull Activity activity) {
         Object[] callbacks = collectActivityLifecycleCallbacks();
         if (callbacks != null) {
@@ -262,6 +273,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     /* package */ void dispatchActivitySaveInstanceState(@NonNull Activity activity,
             @NonNull Bundle outState) {
         Object[] callbacks = collectActivityLifecycleCallbacks();
@@ -273,6 +285,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     /* package */ void dispatchActivityDestroyed(@NonNull Activity activity) {
         Object[] callbacks = collectActivityLifecycleCallbacks();
         if (callbacks != null) {
@@ -292,6 +305,7 @@
         return callbacks;
     }
 
+    @UnsupportedAppUsage
     private Object[] collectActivityLifecycleCallbacks() {
         Object[] callbacks = null;
         synchronized (mActivityLifecycleCallbacks) {
diff --git a/core/java/android/app/ApplicationLoaders.java b/core/java/android/app/ApplicationLoaders.java
index 0ed50f2..30d6bee 100644
--- a/core/java/android/app/ApplicationLoaders.java
+++ b/core/java/android/app/ApplicationLoaders.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.UnsupportedAppUsage;
 import android.os.Build;
 import android.os.GraphicsEnvironment;
 import android.os.Trace;
@@ -29,6 +30,7 @@
 
 /** @hide */
 public class ApplicationLoaders {
+    @UnsupportedAppUsage
     public static ApplicationLoaders getDefault() {
         return gApplicationLoaders;
     }
@@ -134,6 +136,7 @@
         baseDexClassLoader.addNativePath(libPaths);
     }
 
+    @UnsupportedAppUsage
     private final ArrayMap<String, ClassLoader> mLoaders = new ArrayMap<>();
 
     private static final ApplicationLoaders gApplicationLoaders = new ApplicationLoaders();
diff --git a/core/java/android/app/ApplicationPackageManager.java b/core/java/android/app/ApplicationPackageManager.java
index 09a614c..264029b 100644
--- a/core/java/android/app/ApplicationPackageManager.java
+++ b/core/java/android/app/ApplicationPackageManager.java
@@ -20,6 +20,7 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.StringRes;
+import android.annotation.UnsupportedAppUsage;
 import android.annotation.UserIdInt;
 import android.annotation.XmlRes;
 import android.content.ComponentName;
@@ -699,6 +700,7 @@
     }
 
     @Override
+    @UnsupportedAppUsage
     public boolean shouldShowRequestPermissionRationale(String permission) {
         try {
             return mPM.shouldShowRequestPermissionRationale(permission,
@@ -1531,6 +1533,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     static void configurationChanged() {
         synchronized (sSync) {
             sIconCache.clear();
@@ -1538,6 +1541,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     protected ApplicationPackageManager(ContextImpl context,
                               IPackageManager pm) {
         mContext = context;
@@ -2029,6 +2033,7 @@
     }
 
     @Override
+    @UnsupportedAppUsage
     public @Nullable VolumeInfo getPackageCurrentVolume(ApplicationInfo app) {
         final StorageManager storage = mContext.getSystemService(StorageManager.class);
         return getPackageCurrentVolume(app, storage);
@@ -2182,6 +2187,7 @@
     }
 
     @Override
+    @UnsupportedAppUsage
     public void deletePackage(String packageName, IPackageDeleteObserver observer, int flags) {
         deletePackageAsUser(packageName, observer, flags, getUserId());
     }
@@ -2306,6 +2312,7 @@
     }
 
     @Override
+    @UnsupportedAppUsage
     public void getPackageSizeInfoAsUser(String packageName, int userHandle,
             IPackageStatsObserver observer) {
         final String msg = "Shame on you for calling the hidden API "
@@ -2749,6 +2756,7 @@
     }
 
     private final ContextImpl mContext;
+    @UnsupportedAppUsage
     private final IPackageManager mPM;
 
     /** Assume locked until we hear otherwise */
diff --git a/core/java/android/app/ContentProviderHolder.java b/core/java/android/app/ContentProviderHolder.java
index f9998f4..1098990 100644
--- a/core/java/android/app/ContentProviderHolder.java
+++ b/core/java/android/app/ContentProviderHolder.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.ContentProviderNative;
 import android.content.IContentProvider;
 import android.content.pm.ProviderInfo;
@@ -29,11 +30,15 @@
  * @hide
  */
 public class ContentProviderHolder implements Parcelable {
+    @UnsupportedAppUsage
     public final ProviderInfo info;
+    @UnsupportedAppUsage
     public IContentProvider provider;
     public IBinder connection;
+    @UnsupportedAppUsage
     public boolean noReleaseNeeded;
 
+    @UnsupportedAppUsage
     public ContentProviderHolder(ProviderInfo _info) {
         info = _info;
     }
@@ -68,6 +73,7 @@
         }
     };
 
+    @UnsupportedAppUsage
     private ContentProviderHolder(Parcel source) {
         info = ProviderInfo.CREATOR.createFromParcel(source);
         provider = ContentProviderNative.asInterface(
diff --git a/core/java/android/app/ContextImpl.java b/core/java/android/app/ContextImpl.java
index 2eafb32..bbaaee8 100644
--- a/core/java/android/app/ContextImpl.java
+++ b/core/java/android/app/ContextImpl.java
@@ -20,6 +20,7 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.TestApi;
+import android.annotation.UnsupportedAppUsage;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.ContentProvider;
@@ -156,36 +157,50 @@
      * Map from package name, to preference name, to cached preferences.
      */
     @GuardedBy("ContextImpl.class")
+    @UnsupportedAppUsage
     private static ArrayMap<String, ArrayMap<File, SharedPreferencesImpl>> sSharedPrefsCache;
 
     /**
      * Map from preference name to generated path.
      */
     @GuardedBy("ContextImpl.class")
+    @UnsupportedAppUsage
     private ArrayMap<String, File> mSharedPrefsPaths;
 
+    @UnsupportedAppUsage
     final @NonNull ActivityThread mMainThread;
+    @UnsupportedAppUsage
     final @NonNull LoadedApk mPackageInfo;
+    @UnsupportedAppUsage
     private @Nullable ClassLoader mClassLoader;
 
     private final @Nullable IBinder mActivityToken;
 
     private final @NonNull UserHandle mUser;
 
+    @UnsupportedAppUsage
     private final ApplicationContentResolver mContentResolver;
 
+    @UnsupportedAppUsage
     private final String mBasePackageName;
+    @UnsupportedAppUsage
     private final String mOpPackageName;
 
     private final @NonNull ResourcesManager mResourcesManager;
+    @UnsupportedAppUsage
     private @NonNull Resources mResources;
     private @Nullable Display mDisplay; // may be null if default display
 
+    @UnsupportedAppUsage
     private final int mFlags;
 
+    @UnsupportedAppUsage
     private Context mOuterContext;
+    @UnsupportedAppUsage
     private int mThemeResource = 0;
+    @UnsupportedAppUsage
     private Resources.Theme mTheme = null;
+    @UnsupportedAppUsage
     private PackageManager mPackageManager;
     private Context mReceiverRestrictedContext = null;
 
@@ -200,6 +215,7 @@
     @GuardedBy("mSync")
     private File mDatabasesDir;
     @GuardedBy("mSync")
+    @UnsupportedAppUsage
     private File mPreferencesDir;
     @GuardedBy("mSync")
     private File mFilesDir;
@@ -211,6 +227,7 @@
     private File mCodeCacheDir;
 
     // The system service cache for the system services that are cached per-ContextImpl.
+    @UnsupportedAppUsage
     final Object[] mServiceCache = SystemServiceRegistry.createServiceCache();
 
     static final int STATE_UNINITIALIZED = 0;
@@ -235,6 +252,7 @@
     @ServiceInitializationState
     final int[] mServiceInitializationStateArray = new int[mServiceCache.length];
 
+    @UnsupportedAppUsage
     static ContextImpl getImpl(Context context) {
         Context nextContext;
         while ((context instanceof ContextWrapper) &&
@@ -546,6 +564,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     private File getPreferencesDir() {
         synchronized (mSync) {
             if (mPreferencesDir == null) {
@@ -2220,6 +2239,7 @@
     }
 
     @Override
+    @UnsupportedAppUsage
     public Display getDisplay() {
         if (mDisplay == null) {
             return mResourcesManager.getAdjustedDisplay(Display.DEFAULT_DISPLAY,
@@ -2317,6 +2337,7 @@
         mIsAutofillCompatEnabled = autofillCompatEnabled;
     }
 
+    @UnsupportedAppUsage
     static ContextImpl createSystemContext(ActivityThread mainThread) {
         LoadedApk packageInfo = new LoadedApk(mainThread);
         ContextImpl context = new ContextImpl(null, mainThread, packageInfo, null, null, null, 0,
@@ -2340,6 +2361,7 @@
         return context;
     }
 
+    @UnsupportedAppUsage
     static ContextImpl createAppContext(ActivityThread mainThread, LoadedApk packageInfo) {
         if (packageInfo == null) throw new IllegalArgumentException("packageInfo");
         ContextImpl context = new ContextImpl(null, mainThread, packageInfo, null, null, null, 0,
@@ -2348,6 +2370,7 @@
         return context;
     }
 
+    @UnsupportedAppUsage
     static ContextImpl createActivityContext(ActivityThread mainThread,
             LoadedApk packageInfo, ActivityInfo activityInfo, IBinder activityToken, int displayId,
             Configuration overrideConfiguration) {
@@ -2462,6 +2485,7 @@
         mPackageInfo.installSystemApplicationInfo(info, classLoader);
     }
 
+    @UnsupportedAppUsage
     final void scheduleFinalCleanup(String who, String what) {
         mMainThread.scheduleContextCleanup(this, who, what);
     }
@@ -2471,6 +2495,7 @@
         mPackageInfo.removeContextRegistrations(getOuterContext(), who, what);
     }
 
+    @UnsupportedAppUsage
     final Context getReceiverRestrictedContext() {
         if (mReceiverRestrictedContext != null) {
             return mReceiverRestrictedContext;
@@ -2478,15 +2503,18 @@
         return mReceiverRestrictedContext = new ReceiverRestrictedContext(getOuterContext());
     }
 
+    @UnsupportedAppUsage
     final void setOuterContext(Context context) {
         mOuterContext = context;
     }
 
+    @UnsupportedAppUsage
     final Context getOuterContext() {
         return mOuterContext;
     }
 
     @Override
+    @UnsupportedAppUsage
     public IBinder getActivityToken() {
         return mActivityToken;
     }
@@ -2567,6 +2595,7 @@
     // ----------------------------------------------------------------------
 
     private static final class ApplicationContentResolver extends ContentResolver {
+        @UnsupportedAppUsage
         private final ActivityThread mMainThread;
 
         public ApplicationContentResolver(Context context, ActivityThread mainThread) {
@@ -2575,6 +2604,7 @@
         }
 
         @Override
+        @UnsupportedAppUsage
         protected IContentProvider acquireProvider(Context context, String auth) {
             return mMainThread.acquireProvider(context,
                     ContentProvider.getAuthorityWithoutUserId(auth),
diff --git a/core/java/android/app/DatePickerDialog.java b/core/java/android/app/DatePickerDialog.java
index bd55a06..37a05f0 100644
--- a/core/java/android/app/DatePickerDialog.java
+++ b/core/java/android/app/DatePickerDialog.java
@@ -19,6 +19,7 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.StyleRes;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.DialogInterface.OnClickListener;
@@ -47,6 +48,7 @@
     private static final String MONTH = "month";
     private static final String DAY = "day";
 
+    @UnsupportedAppUsage
     private final DatePicker mDatePicker;
 
     private OnDateSetListener mDateSetListener;
diff --git a/core/java/android/app/Dialog.java b/core/java/android/app/Dialog.java
index 6557ac4..b7bac52 100644
--- a/core/java/android/app/Dialog.java
+++ b/core/java/android/app/Dialog.java
@@ -24,6 +24,7 @@
 import android.annotation.Nullable;
 import android.annotation.StringRes;
 import android.annotation.StyleRes;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.ContextWrapper;
@@ -93,11 +94,14 @@
 public class Dialog implements DialogInterface, Window.Callback,
         KeyEvent.Callback, OnCreateContextMenuListener, Window.OnWindowDismissedCallback {
     private static final String TAG = "Dialog";
+    @UnsupportedAppUsage
     private Activity mOwnerActivity;
 
     private final WindowManager mWindowManager;
 
+    @UnsupportedAppUsage
     final Context mContext;
+    @UnsupportedAppUsage
     final Window mWindow;
 
     View mDecor;
@@ -110,22 +114,30 @@
     protected boolean mCancelable = true;
 
     private String mCancelAndDismissTaken;
+    @UnsupportedAppUsage
     private Message mCancelMessage;
+    @UnsupportedAppUsage
     private Message mDismissMessage;
+    @UnsupportedAppUsage
     private Message mShowMessage;
 
+    @UnsupportedAppUsage
     private OnKeyListener mOnKeyListener;
 
     private boolean mCreated = false;
+    @UnsupportedAppUsage
     private boolean mShowing = false;
     private boolean mCanceled = false;
 
+    @UnsupportedAppUsage
     private final Handler mHandler = new Handler();
 
     private static final int DISMISS = 0x43;
+    @UnsupportedAppUsage
     private static final int CANCEL = 0x44;
     private static final int SHOW = 0x45;
 
+    @UnsupportedAppUsage
     private final Handler mListenersHandler;
 
     private SearchEvent mSearchEvent;
@@ -361,6 +373,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     void dismissDialog() {
         if (mDecor == null || !mShowing) {
             return;
diff --git a/core/java/android/app/DialogFragment.java b/core/java/android/app/DialogFragment.java
index 3a355d9..bfc15c2 100644
--- a/core/java/android/app/DialogFragment.java
+++ b/core/java/android/app/DialogFragment.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.os.Bundle;
@@ -182,11 +183,15 @@
     int mTheme = 0;
     boolean mCancelable = true;
     boolean mShowsDialog = true;
+    @UnsupportedAppUsage
     int mBackStackId = -1;
 
     Dialog mDialog;
+    @UnsupportedAppUsage
     boolean mViewDestroyed;
+    @UnsupportedAppUsage
     boolean mDismissed;
+    @UnsupportedAppUsage
     boolean mShownByMe;
 
     public DialogFragment() {
@@ -236,6 +241,7 @@
     }
 
     /** {@hide} */
+    @UnsupportedAppUsage
     public void showAllowingStateLoss(FragmentManager manager, String tag) {
         mDismissed = false;
         mShownByMe = true;
diff --git a/core/java/android/app/DownloadManager.java b/core/java/android/app/DownloadManager.java
index b444f17..35999a2 100644
--- a/core/java/android/app/DownloadManager.java
+++ b/core/java/android/app/DownloadManager.java
@@ -21,6 +21,7 @@
 import android.annotation.SdkConstant.SdkConstantType;
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ContentResolver;
 import android.content.ContentUris;
 import android.content.ContentValues;
@@ -329,6 +330,7 @@
      * columns to request from DownloadProvider.
      * @hide
      */
+    @UnsupportedAppUsage
     public static final String[] UNDERLYING_COLUMNS = new String[] {
         Downloads.Impl._ID,
         Downloads.Impl._DATA + " AS " + COLUMN_LOCAL_FILENAME,
@@ -381,6 +383,7 @@
         @Deprecated
         public static final int NETWORK_BLUETOOTH = 1 << 2;
 
+        @UnsupportedAppUsage
         private Uri mUri;
         private Uri mDestinationUri;
         private List<Pair<String, String>> mRequestHeaders = new ArrayList<Pair<String, String>>();
@@ -860,6 +863,7 @@
          * @return this object
          * @hide
          */
+        @UnsupportedAppUsage
         public Query setOnlyIncludeVisibleInDownloadsUi(boolean value) {
             mOnlyIncludeVisibleInDownloadsUi = value;
             return this;
@@ -875,6 +879,7 @@
          * @return this object
          * @hide
          */
+        @UnsupportedAppUsage
         public Query orderBy(String column, int direction) {
             if (direction != ORDER_ASCENDING && direction != ORDER_DESCENDING) {
                 throw new IllegalArgumentException("Invalid direction: " + direction);
@@ -996,6 +1001,7 @@
      * /my_downloads URIs, for clients that have permission to do so.
      * @hide
      */
+    @UnsupportedAppUsage
     public void setAccessAllDownloads(boolean accessAllDownloads) {
         if (accessAllDownloads) {
             mBaseUri = Downloads.Impl.ALL_DOWNLOADS_CONTENT_URI;
@@ -1005,6 +1011,7 @@
     }
 
     /** {@hide} */
+    @UnsupportedAppUsage
     public void setAccessFilename(boolean accessFilename) {
         mAccessFilename = accessFilename;
     }
@@ -1439,6 +1446,7 @@
     /**
      * Get a parameterized SQL WHERE clause to select a bunch of IDs.
      */
+    @UnsupportedAppUsage
     static String getWhereClauseForIds(long[] ids) {
         StringBuilder whereClause = new StringBuilder();
         whereClause.append("(");
@@ -1456,6 +1464,7 @@
     /**
      * Get the selection args for a clause returned by {@link #getWhereClauseForIds(long[])}.
      */
+    @UnsupportedAppUsage
     static String[] getWhereArgsForIds(long[] ids) {
         String[] whereArgs = new String[ids.length];
         return getWhereArgsForIds(ids, whereArgs);
diff --git a/core/java/android/app/Fragment.java b/core/java/android/app/Fragment.java
index 8e8270a..9f4157f 100644
--- a/core/java/android/app/Fragment.java
+++ b/core/java/android/app/Fragment.java
@@ -21,6 +21,7 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.StringRes;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ComponentCallbacks2;
 import android.content.Context;
 import android.content.Intent;
@@ -263,6 +264,7 @@
  */
 @Deprecated
 public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListener {
+    @UnsupportedAppUsage
     private static final ArrayMap<String, Class<?>> sClassMap =
             new ArrayMap<String, Class<?>>();
 
@@ -279,13 +281,16 @@
     int mState = INITIALIZING;
 
     // When instantiated from saved state, this is the saved state.
+    @UnsupportedAppUsage
     Bundle mSavedFragmentState;
     SparseArray<Parcelable> mSavedViewState;
 
     // Index into active fragment array.
+    @UnsupportedAppUsage
     int mIndex = -1;
 
     // Internal unique name for this fragment;
+    @UnsupportedAppUsage
     String mWho;
 
     // Construction arguments;
@@ -301,6 +306,7 @@
     int mTargetRequestCode;
 
     // True if the fragment is in the list of added fragments.
+    @UnsupportedAppUsage
     boolean mAdded;
 
     // If set this fragment is being removed from its activity.
@@ -325,12 +331,15 @@
     // The fragment manager we are associated with.  Set as soon as the
     // fragment is used in a transaction; cleared after it has been removed
     // from all transactions.
+    @UnsupportedAppUsage
     FragmentManagerImpl mFragmentManager;
 
     // Activity this fragment is attached to.
+    @UnsupportedAppUsage
     FragmentHostCallback mHost;
 
     // Private fragment manager for child fragments inside of this one.
+    @UnsupportedAppUsage
     FragmentManagerImpl mChildFragmentManager;
 
     // For use when restoring fragment state and descendant fragments are retained.
@@ -343,6 +352,7 @@
     // The optional identifier for this fragment -- either the container ID if it
     // was dynamically added to the view hierarchy, or the ID supplied in
     // layout.
+    @UnsupportedAppUsage
     int mFragmentId;
 
     // When a fragment is being dynamically added to the view hierarchy, this
@@ -380,6 +390,7 @@
     ViewGroup mContainer;
 
     // The View generated for this fragment.
+    @UnsupportedAppUsage
     View mView;
 
     // Whether this fragment should defer starting until after other fragments
@@ -390,6 +401,7 @@
     boolean mUserVisibleHint = true;
 
     LoaderManagerImpl mLoaderManager;
+    @UnsupportedAppUsage
     boolean mLoadersStarted;
     boolean mCheckedForLoaderManager;
 
diff --git a/core/java/android/app/FragmentController.java b/core/java/android/app/FragmentController.java
index 40bc248..9316be7 100644
--- a/core/java/android/app/FragmentController.java
+++ b/core/java/android/app/FragmentController.java
@@ -17,6 +17,7 @@
 package android.app;
 
 import android.annotation.Nullable;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.res.Configuration;
 import android.os.Bundle;
@@ -43,6 +44,7 @@
  */
 @Deprecated
 public class FragmentController {
+    @UnsupportedAppUsage
     private final FragmentHostCallback<?> mHost;
 
     /**
diff --git a/core/java/android/app/FragmentHostCallback.java b/core/java/android/app/FragmentHostCallback.java
index b48817b..1a12fdc 100644
--- a/core/java/android/app/FragmentHostCallback.java
+++ b/core/java/android/app/FragmentHostCallback.java
@@ -18,6 +18,7 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentSender;
@@ -56,6 +57,7 @@
     private LoaderManagerImpl mLoaderManager;
     private boolean mCheckedForLoaderManager;
     /** Whether or not the fragment host loader manager was started */
+    @UnsupportedAppUsage
     private boolean mLoadersStarted;
 
     public FragmentHostCallback(Context context, Handler handler, int windowAnimations) {
diff --git a/core/java/android/app/FragmentManager.java b/core/java/android/app/FragmentManager.java
index 708450f..5e7921b 100644
--- a/core/java/android/app/FragmentManager.java
+++ b/core/java/android/app/FragmentManager.java
@@ -22,6 +22,7 @@
 import android.animation.AnimatorSet;
 import android.animation.PropertyValuesHolder;
 import android.animation.ValueAnimator;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.pm.ApplicationInfo;
 import android.content.res.Configuration;
@@ -688,7 +689,9 @@
     boolean mExecutingActions;
 
     int mNextFragmentIndex = 0;
+    @UnsupportedAppUsage
     SparseArray<Fragment> mActive;
+    @UnsupportedAppUsage
     final ArrayList<Fragment> mAdded = new ArrayList<>();
     ArrayList<BackStackRecord> mBackStack;
     ArrayList<Fragment> mCreatedMenus;
@@ -708,6 +711,7 @@
     Fragment mPrimaryNav;
     
     boolean mNeedMenuInvalidate;
+    @UnsupportedAppUsage
     boolean mStateSaved;
     boolean mDestroyed;
     String mNoTransactionsBecause;
@@ -1097,6 +1101,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     Animator loadAnimator(Fragment fragment, int transit, boolean enter,
             int transitionStyle) {
         Animator animObj = fragment.onCreateAnimator(transit, enter, fragment.getNextAnim());
@@ -2976,6 +2981,7 @@
         return 0;
     }
 
+    @UnsupportedAppUsage
     public void noteStateNotSaved() {
         mSavedNonConfig = null;
         mStateSaved = false;
diff --git a/core/java/android/app/Instrumentation.java b/core/java/android/app/Instrumentation.java
index d9969a7..34c2282 100644
--- a/core/java/android/app/Instrumentation.java
+++ b/core/java/android/app/Instrumentation.java
@@ -19,6 +19,7 @@
 import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ActivityNotFoundException;
 import android.content.ComponentName;
 import android.content.Context;
@@ -1374,6 +1375,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public void callActivityOnNewIntent(Activity activity, ReferrerIntent intent) {
         final String oldReferrer = activity.mReferrer;
         try {
@@ -1638,6 +1640,7 @@
      *
      * {@hide}
      */
+    @UnsupportedAppUsage
     public ActivityResult execStartActivity(
             Context who, IBinder contextThread, IBinder token, Activity target,
             Intent intent, int requestCode, Bundle options) {
@@ -1691,6 +1694,7 @@
      *
      * {@hide}
      */
+    @UnsupportedAppUsage
     public void execStartActivities(Context who, IBinder contextThread,
             IBinder token, Activity target, Intent[] intents, Bundle options) {
         execStartActivitiesAsUser(who, contextThread, token, target, intents, options,
@@ -1709,6 +1713,7 @@
      *
      * {@hide}
      */
+    @UnsupportedAppUsage
     public int execStartActivitiesAsUser(Context who, IBinder contextThread,
             IBinder token, Activity target, Intent[] intents, Bundle options,
             int userId) {
@@ -1780,6 +1785,7 @@
      * 
      * {@hide}
      */
+    @UnsupportedAppUsage
     public ActivityResult execStartActivity(
         Context who, IBinder contextThread, IBinder token, String target,
         Intent intent, int requestCode, Bundle options) {
@@ -1847,6 +1853,7 @@
      *
      * {@hide}
      */
+    @UnsupportedAppUsage
     public ActivityResult execStartActivity(
             Context who, IBinder contextThread, IBinder token, String resultWho,
             Intent intent, int requestCode, Bundle options, UserHandle user) {
@@ -1892,6 +1899,7 @@
      * Special version!
      * @hide
      */
+    @UnsupportedAppUsage
     public ActivityResult execStartActivityAsCaller(
             Context who, IBinder contextThread, IBinder token, Activity target,
             Intent intent, int requestCode, Bundle options, boolean ignoreTargetSecurity,
@@ -1938,6 +1946,7 @@
      * Special version!
      * @hide
      */
+    @UnsupportedAppUsage
     public void execStartActivityFromAppTask(
             Context who, IBinder contextThread, IAppTask appTask,
             Intent intent, Bundle options) {
@@ -1997,6 +2006,7 @@
     }
 
     /** @hide */
+    @UnsupportedAppUsage
     public static void checkStartActivityResult(int res, Object intent) {
         if (!ActivityManager.isStartResultFatalError(res)) {
             return;
diff --git a/core/java/android/app/IntentService.java b/core/java/android/app/IntentService.java
index 95ec24c..11c747f 100644
--- a/core/java/android/app/IntentService.java
+++ b/core/java/android/app/IntentService.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.UnsupportedAppUsage;
 import android.annotation.WorkerThread;
 import android.annotation.Nullable;
 import android.content.Intent;
@@ -62,6 +63,7 @@
  */
 public abstract class IntentService extends Service {
     private volatile Looper mServiceLooper;
+    @UnsupportedAppUsage
     private volatile ServiceHandler mServiceHandler;
     private String mName;
     private boolean mRedelivery;
diff --git a/core/java/android/app/KeyguardManager.java b/core/java/android/app/KeyguardManager.java
index 9ceecd9..3085fe5 100644
--- a/core/java/android/app/KeyguardManager.java
+++ b/core/java/android/app/KeyguardManager.java
@@ -22,6 +22,7 @@
 import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
+import android.annotation.UnsupportedAppUsage;
 import android.app.trust.ITrustManager;
 import android.content.Context;
 import android.content.Intent;
@@ -414,6 +415,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public boolean isDeviceLocked(int userId) {
         try {
             return mTrustManager.isDeviceLocked(userId);
@@ -439,6 +441,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public boolean isDeviceSecure(int userId) {
         try {
             return mTrustManager.isDeviceSecure(userId);
diff --git a/core/java/android/app/LoadedApk.java b/core/java/android/app/LoadedApk.java
index 494b547..ddd9441 100644
--- a/core/java/android/app/LoadedApk.java
+++ b/core/java/android/app/LoadedApk.java
@@ -18,6 +18,7 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.UnsupportedAppUsage;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.Context;
@@ -73,12 +74,14 @@
 import java.util.Objects;
 
 final class IntentReceiverLeaked extends AndroidRuntimeException {
+    @UnsupportedAppUsage
     public IntentReceiverLeaked(String msg) {
         super(msg);
     }
 }
 
 final class ServiceConnectionLeaked extends AndroidRuntimeException {
+    @UnsupportedAppUsage
     public ServiceConnectionLeaked(String msg) {
         super(msg);
     }
@@ -93,36 +96,52 @@
     static final boolean DEBUG = false;
     private static final String PROPERTY_NAME_APPEND_NATIVE = "pi.append_native_lib_paths";
 
+    @UnsupportedAppUsage
     private final ActivityThread mActivityThread;
+    @UnsupportedAppUsage
     final String mPackageName;
+    @UnsupportedAppUsage
     private ApplicationInfo mApplicationInfo;
+    @UnsupportedAppUsage
     private String mAppDir;
+    @UnsupportedAppUsage
     private String mResDir;
     private String[] mOverlayDirs;
+    @UnsupportedAppUsage
     private String mDataDir;
+    @UnsupportedAppUsage
     private String mLibDir;
+    @UnsupportedAppUsage
     private File mDataDirFile;
     private File mDeviceProtectedDataDirFile;
     private File mCredentialProtectedDataDirFile;
+    @UnsupportedAppUsage
     private final ClassLoader mBaseClassLoader;
     private final boolean mSecurityViolation;
     private final boolean mIncludeCode;
     private final boolean mRegisterPackage;
+    @UnsupportedAppUsage
     private final DisplayAdjustments mDisplayAdjustments = new DisplayAdjustments();
     /** WARNING: This may change. Don't hold external references to it. */
+    @UnsupportedAppUsage
     Resources mResources;
+    @UnsupportedAppUsage
     private ClassLoader mClassLoader;
+    @UnsupportedAppUsage
     private Application mApplication;
 
     private String[] mSplitNames;
     private String[] mSplitAppDirs;
+    @UnsupportedAppUsage
     private String[] mSplitResDirs;
     private String[] mSplitClassLoaderNames;
 
+    @UnsupportedAppUsage
     private final ArrayMap<Context, ArrayMap<BroadcastReceiver, ReceiverDispatcher>> mReceivers
         = new ArrayMap<>();
     private final ArrayMap<Context, ArrayMap<BroadcastReceiver, LoadedApk.ReceiverDispatcher>> mUnregisteredReceivers
         = new ArrayMap<>();
+    @UnsupportedAppUsage
     private final ArrayMap<Context, ArrayMap<ServiceConnection, LoadedApk.ServiceDispatcher>> mServices
         = new ArrayMap<>();
     private final ArrayMap<Context, ArrayMap<ServiceConnection, LoadedApk.ServiceDispatcher>> mUnboundServices
@@ -236,10 +255,12 @@
         return mAppComponentFactory;
     }
 
+    @UnsupportedAppUsage
     public String getPackageName() {
         return mPackageName;
     }
 
+    @UnsupportedAppUsage
     public ApplicationInfo getApplicationInfo() {
         return mApplicationInfo;
     }
@@ -252,6 +273,7 @@
         return mSecurityViolation;
     }
 
+    @UnsupportedAppUsage
     public CompatibilityInfo getCompatibilityInfo() {
         return mDisplayAdjustments.getCompatibilityInfo();
     }
@@ -804,6 +826,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     public ClassLoader getClassLoader() {
         synchronized (this) {
             if (mClassLoader == null) {
@@ -972,6 +995,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     public String getAppDir() {
         return mAppDir;
     }
@@ -980,6 +1004,7 @@
         return mLibDir;
     }
 
+    @UnsupportedAppUsage
     public String getResDir() {
         return mResDir;
     }
@@ -988,10 +1013,12 @@
         return mSplitAppDirs;
     }
 
+    @UnsupportedAppUsage
     public String[] getSplitResDirs() {
         return mSplitResDirs;
     }
 
+    @UnsupportedAppUsage
     public String[] getOverlayDirs() {
         return mOverlayDirs;
     }
@@ -1000,6 +1027,7 @@
         return mDataDir;
     }
 
+    @UnsupportedAppUsage
     public File getDataDirFile() {
         return mDataDirFile;
     }
@@ -1012,10 +1040,12 @@
         return mCredentialProtectedDataDirFile;
     }
 
+    @UnsupportedAppUsage
     public AssetManager getAssets() {
         return getResources().getAssets();
     }
 
+    @UnsupportedAppUsage
     public Resources getResources() {
         if (mResources == null) {
             final String[] splitPaths;
@@ -1034,6 +1064,7 @@
         return mResources;
     }
 
+    @UnsupportedAppUsage
     public Application makeApplication(boolean forceDefaultAppClass,
             Instrumentation instrumentation) {
         if (mApplication != null) {
@@ -1102,6 +1133,7 @@
         return app;
     }
 
+    @UnsupportedAppUsage
     private void rewriteRValues(ClassLoader cl, String packageName, int id) {
         final Class<?> rClazz;
         try {
@@ -1324,7 +1356,9 @@
         }
 
         final IIntentReceiver.Stub mIIntentReceiver;
+        @UnsupportedAppUsage
         final BroadcastReceiver mReceiver;
+        @UnsupportedAppUsage
         final Context mContext;
         final Handler mActivityThread;
         final Instrumentation mInstrumentation;
@@ -1448,10 +1482,12 @@
             return mLocation;
         }
 
+        @UnsupportedAppUsage
         BroadcastReceiver getIntentReceiver() {
             return mReceiver;
         }
 
+        @UnsupportedAppUsage
         IIntentReceiver getIIntentReceiver() {
             return mIIntentReceiver;
         }
@@ -1489,6 +1525,7 @@
 
     }
 
+    @UnsupportedAppUsage
     public final IServiceConnection getServiceDispatcher(ServiceConnection c,
             Context context, Handler handler, int flags) {
         synchronized (mServices) {
@@ -1566,7 +1603,9 @@
 
     static final class ServiceDispatcher {
         private final ServiceDispatcher.InnerConnection mIServiceConnection;
+        @UnsupportedAppUsage
         private final ServiceConnection mConnection;
+        @UnsupportedAppUsage
         private final Context mContext;
         private final Handler mActivityThread;
         private final ServiceConnectionLeaked mLocation;
@@ -1582,6 +1621,7 @@
         }
 
         private static class InnerConnection extends IServiceConnection.Stub {
+            @UnsupportedAppUsage
             final WeakReference<LoadedApk.ServiceDispatcher> mDispatcher;
 
             InnerConnection(LoadedApk.ServiceDispatcher sd) {
@@ -1600,6 +1640,7 @@
         private final ArrayMap<ComponentName, ServiceDispatcher.ConnectionInfo> mActiveConnections
             = new ArrayMap<ComponentName, ServiceDispatcher.ConnectionInfo>();
 
+        @UnsupportedAppUsage
         ServiceDispatcher(ServiceConnection conn,
                 Context context, Handler activityThread, int flags) {
             mIServiceConnection = new InnerConnection(this);
@@ -1645,6 +1686,7 @@
             return mConnection;
         }
 
+        @UnsupportedAppUsage
         IServiceConnection getIServiceConnection() {
             return mIServiceConnection;
         }
diff --git a/core/java/android/app/LocalActivityManager.java b/core/java/android/app/LocalActivityManager.java
index e297719..a52fb1a 100644
--- a/core/java/android/app/LocalActivityManager.java
+++ b/core/java/android/app/LocalActivityManager.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.UnsupportedAppUsage;
 import android.app.ActivityThread.ActivityClientRecord;
 import android.app.servertransaction.PendingTransactionActions;
 import android.content.Intent;
@@ -73,18 +74,23 @@
     /** Thread our activities are running in. */
     private final ActivityThread mActivityThread;
     /** The containing activity that owns the activities we create. */
+    @UnsupportedAppUsage
     private final Activity mParent;
 
     /** The activity that is currently resumed. */
+    @UnsupportedAppUsage
     private LocalActivityRecord mResumed;
     /** id -> record of all known activities. */
+    @UnsupportedAppUsage
     private final Map<String, LocalActivityRecord> mActivities
             = new HashMap<String, LocalActivityRecord>();
     /** array of all known activities for easy iterating. */
+    @UnsupportedAppUsage
     private final ArrayList<LocalActivityRecord> mActivityArray
             = new ArrayList<LocalActivityRecord>();
 
     /** True if only one activity can be resumed at a time */
+    @UnsupportedAppUsage
     private boolean mSingleMode;
     
     /** Set to true once we find out the container is finishing. */
@@ -111,6 +117,7 @@
         mSingleMode = singleMode;
     }
 
+    @UnsupportedAppUsage
     private void moveToState(LocalActivityRecord r, int desiredState) {
         if (r.curState == RESTORED || r.curState == DESTROYED) {
             // startActivity() has not yet been called, so nothing to do.
diff --git a/core/java/android/app/NativeActivity.java b/core/java/android/app/NativeActivity.java
index ca663fd..25eb958 100644
--- a/core/java/android/app/NativeActivity.java
+++ b/core/java/android/app/NativeActivity.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.pm.ActivityInfo;
 import android.content.pm.PackageManager;
@@ -70,6 +71,7 @@
     private NativeContentView mNativeContentView;
     private InputMethodManager mIMM;
 
+    @UnsupportedAppUsage
     private long mNativeHandle;
     
     private InputQueue mCurInputQueue;
@@ -85,6 +87,7 @@
 
     private boolean mDestroyed;
     
+    @UnsupportedAppUsage
     private native long loadNativeCode(String path, String funcname, MessageQueue queue,
             String internalDataPath, String obbPath, String externalDataPath, int sdkVersion,
             AssetManager assetMgr, byte[] savedState, ClassLoader classLoader, String libraryPath);
@@ -312,18 +315,22 @@
         }
     }
 
+    @UnsupportedAppUsage
     void setWindowFlags(int flags, int mask) {
         getWindow().setFlags(flags, mask);
     }
     
+    @UnsupportedAppUsage
     void setWindowFormat(int format) {
         getWindow().setFormat(format);
     }
 
+    @UnsupportedAppUsage
     void showIme(int mode) {
         mIMM.showSoftInput(mNativeContentView, mode);
     }
 
+    @UnsupportedAppUsage
     void hideIme(int mode) {
         mIMM.hideSoftInputFromWindow(mNativeContentView.getWindowToken(), mode);
     }
diff --git a/core/java/android/app/Notification.java b/core/java/android/app/Notification.java
index 74d3c0d..2fe797b 100644
--- a/core/java/android/app/Notification.java
+++ b/core/java/android/app/Notification.java
@@ -27,6 +27,7 @@
 import android.annotation.SdkConstant;
 import android.annotation.SdkConstant.SdkConstantType;
 import android.annotation.SystemApi;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ApplicationInfo;
@@ -873,6 +874,7 @@
      */
     public String category;
 
+    @UnsupportedAppUsage
     private String mGroupKey;
 
     /**
@@ -918,6 +920,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public ArraySet<PendingIntent> allPendingIntents;
 
     /**
@@ -1257,9 +1260,12 @@
      */
     public static final String EXTRA_FOREGROUND_APPS = "android.foregroundApps";
 
+    @UnsupportedAppUsage
     private Icon mSmallIcon;
+    @UnsupportedAppUsage
     private Icon mLargeIcon;
 
+    @UnsupportedAppUsage
     private String mChannelId;
     private long mTimeout;
 
@@ -1411,6 +1417,7 @@
         public static final int SEMANTIC_ACTION_CALL = 10;
 
         private final Bundle mExtras;
+        @UnsupportedAppUsage
         private Icon mIcon;
         private final RemoteInput[] mRemoteInputs;
         private boolean mAllowGeneratedReplies = true;
@@ -2065,6 +2072,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public Notification(Context context, int icon, CharSequence tickerText, long when,
             CharSequence contentTitle, CharSequence contentText, Intent contentIntent)
     {
@@ -3077,6 +3085,7 @@
      * Used when notifying to clean up legacy small icons.
      * @hide
      */
+    @UnsupportedAppUsage
     public void setSmallIcon(Icon icon) {
         mSmallIcon = icon;
     }
@@ -3093,6 +3102,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public boolean isGroupSummary() {
         return mGroupKey != null && (flags & FLAG_GROUP_SUMMARY) != 0;
     }
@@ -3100,6 +3110,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public boolean isGroupChild() {
         return mGroupKey != null && (flags & FLAG_GROUP_SUMMARY) == 0;
     }
@@ -3176,6 +3187,7 @@
         private Notification mN;
         private Bundle mUserExtras = new Bundle();
         private Style mStyle;
+        @UnsupportedAppUsage
         private ArrayList<Action> mActions = new ArrayList<Action>(MAX_ACTION_BUTTONS);
         private ArrayList<Person> mPersonList = new ArrayList<>();
         private ContrastColorUtil mColorUtil;
@@ -4793,6 +4805,7 @@
         /**
          * @hide
          */
+        @UnsupportedAppUsage
         public String loadHeaderAppName() {
             CharSequence name = null;
             final PackageManager pm = mContext.getPackageManager();
@@ -5119,6 +5132,7 @@
          *
          * @hide
          */
+        @UnsupportedAppUsage
         public RemoteViews makePublicContentView() {
             return makePublicView(false /* ambient */);
         }
@@ -5663,6 +5677,7 @@
             return clone;
         }
 
+        @UnsupportedAppUsage
         private int getBaseLayoutResource() {
             return R.layout.notification_template_material_base;
         }
@@ -7753,6 +7768,7 @@
          * @hide
          */
         @Override
+        @UnsupportedAppUsage
         public Notification buildStyled(Notification wip) {
             super.buildStyled(wip);
             if (wip.category == null) {
diff --git a/core/java/android/app/NotificationChannel.java b/core/java/android/app/NotificationChannel.java
index 09d0c53..848def6 100644
--- a/core/java/android/app/NotificationChannel.java
+++ b/core/java/android/app/NotificationChannel.java
@@ -17,6 +17,7 @@
 
 import android.annotation.Nullable;
 import android.annotation.SystemApi;
+import android.annotation.UnsupportedAppUsage;
 import android.app.NotificationManager.Importance;
 import android.content.ContentResolver;
 import android.content.Context;
@@ -133,6 +134,7 @@
     private static final boolean DEFAULT_DELETED = false;
     private static final boolean DEFAULT_SHOW_BADGE = true;
 
+    @UnsupportedAppUsage
     private final String mId;
     private String mName;
     private String mDesc;
@@ -300,6 +302,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public void setBlockableSystem(boolean blockableSystem) {
         mBlockableSystem = blockableSystem;
     }
diff --git a/core/java/android/app/NotificationChannelGroup.java b/core/java/android/app/NotificationChannelGroup.java
index 0fa3c7f..17c5cba 100644
--- a/core/java/android/app/NotificationChannelGroup.java
+++ b/core/java/android/app/NotificationChannelGroup.java
@@ -17,6 +17,7 @@
 
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Intent;
 import android.os.Parcel;
 import android.os.Parcelable;
@@ -49,6 +50,7 @@
     private static final String ATT_ID = "id";
     private static final String ATT_BLOCKED = "blocked";
 
+    @UnsupportedAppUsage
     private final String mId;
     private CharSequence mName;
     private String mDescription;
diff --git a/core/java/android/app/NotificationManager.java b/core/java/android/app/NotificationManager.java
index f6dc5d1..4b25b8b 100644
--- a/core/java/android/app/NotificationManager.java
+++ b/core/java/android/app/NotificationManager.java
@@ -21,6 +21,7 @@
 import android.annotation.SdkConstant;
 import android.annotation.SystemService;
 import android.annotation.TestApi;
+import android.annotation.UnsupportedAppUsage;
 import android.app.Notification.Builder;
 import android.content.ComponentName;
 import android.content.Context;
@@ -308,9 +309,11 @@
      */
     public static final int IMPORTANCE_MAX = 5;
 
+    @UnsupportedAppUsage
     private static INotificationManager sService;
 
     /** @hide */
+    @UnsupportedAppUsage
     static public INotificationManager getService()
     {
         if (sService != null) {
@@ -321,12 +324,14 @@
         return sService;
     }
 
+    @UnsupportedAppUsage
     /*package*/ NotificationManager(Context context, Handler handler)
     {
         mContext = context;
     }
 
     /** {@hide} */
+    @UnsupportedAppUsage
     public static NotificationManager from(Context context) {
         return (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
     }
@@ -373,6 +378,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public void notifyAsUser(String tag, int id, Notification notification, UserHandle user)
     {
         INotificationManager service = getService();
@@ -438,6 +444,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public void cancelAsUser(String tag, int id, UserHandle user)
     {
         INotificationManager service = getService();
@@ -666,6 +673,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public void setZenMode(int mode, Uri conditionId, String reason) {
         INotificationManager service = getService();
         try {
@@ -690,6 +698,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public ZenModeConfig getZenModeConfig() {
         INotificationManager service = getService();
         try {
diff --git a/core/java/android/app/PackageDeleteObserver.java b/core/java/android/app/PackageDeleteObserver.java
index 9b83ec1..20ae84c 100644
--- a/core/java/android/app/PackageDeleteObserver.java
+++ b/core/java/android/app/PackageDeleteObserver.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.Intent;
 import android.content.pm.IPackageDeleteObserver2;
 
diff --git a/core/java/android/app/PackageInstallObserver.java b/core/java/android/app/PackageInstallObserver.java
index ff28679..507ebe5 100644
--- a/core/java/android/app/PackageInstallObserver.java
+++ b/core/java/android/app/PackageInstallObserver.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.Intent;
 import android.content.pm.IPackageInstallObserver2;
 import android.os.Bundle;
@@ -59,6 +60,7 @@
      *            basic outcome
      * @hide
      */
+    @UnsupportedAppUsage
     public void onPackageInstalled(String basePackageName, int returnCode, String msg,
             Bundle extras) {
     }
diff --git a/core/java/android/app/PendingIntent.java b/core/java/android/app/PendingIntent.java
index bdaf80e..75d95b2 100644
--- a/core/java/android/app/PendingIntent.java
+++ b/core/java/android/app/PendingIntent.java
@@ -19,6 +19,7 @@
 import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.IIntentReceiver;
 import android.content.IIntentSender;
@@ -274,6 +275,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public static void setOnMarshaledListener(OnMarshaledListener listener) {
         sOnMarshaledListener.set(listener);
     }
@@ -362,6 +364,7 @@
      * Note that UserHandle.CURRENT will be interpreted at the time the
      * activity is started, not when the pending intent is created.
      */
+    @UnsupportedAppUsage
     public static PendingIntent getActivityAsUser(Context context, int requestCode,
             @NonNull Intent intent, int flags, Bundle options, UserHandle user) {
         String packageName = context.getPackageName();
@@ -557,6 +560,7 @@
      * Note that UserHandle.CURRENT will be interpreted at the time the
      * broadcast is sent, not when the pending intent is created.
      */
+    @UnsupportedAppUsage
     public static PendingIntent getBroadcastAsUser(Context context, int requestCode,
             Intent intent, int flags, UserHandle userHandle) {
         String packageName = context.getPackageName();
@@ -1084,6 +1088,7 @@
      * @hide
      * Check whether this PendingIntent will launch an Activity.
      */
+    @UnsupportedAppUsage
     public boolean isActivity() {
         try {
             return ActivityManager.getService()
@@ -1110,6 +1115,7 @@
      * @hide
      * Return the Intent of this PendingIntent.
      */
+    @UnsupportedAppUsage
     public Intent getIntent() {
         try {
             return ActivityManager.getService()
@@ -1123,6 +1129,7 @@
      * @hide
      * Return descriptive tag for this PendingIntent.
      */
+    @UnsupportedAppUsage
     public String getTag(String prefix) {
         try {
             return ActivityManager.getService()
diff --git a/core/java/android/app/PictureInPictureArgs.java b/core/java/android/app/PictureInPictureArgs.java
index cbe8bb9..adcc495 100644
--- a/core/java/android/app/PictureInPictureArgs.java
+++ b/core/java/android/app/PictureInPictureArgs.java
@@ -17,6 +17,7 @@
 package android.app;
 
 import android.annotation.Nullable;
+import android.annotation.UnsupportedAppUsage;
 import android.graphics.Rect;
 import android.os.Parcel;
 import android.os.Parcelable;
@@ -137,6 +138,7 @@
      * @hide
      */
     @Deprecated
+    @UnsupportedAppUsage
     public PictureInPictureArgs() {
     }
 
@@ -173,6 +175,7 @@
      * @hide
      */
     @Deprecated
+    @UnsupportedAppUsage
     public void setAspectRatio(float aspectRatio) {
         // Temporary workaround
         mAspectRatio = new Rational((int) (aspectRatio * 1000000000), 1000000000);
@@ -182,6 +185,7 @@
      * @hide
      */
     @Deprecated
+    @UnsupportedAppUsage
     public void setActions(List<RemoteAction> actions) {
         if (mUserActions != null) {
             mUserActions = null;
diff --git a/core/java/android/app/Presentation.java b/core/java/android/app/Presentation.java
index af55788..cb72d4d 100644
--- a/core/java/android/app/Presentation.java
+++ b/core/java/android/app/Presentation.java
@@ -20,6 +20,7 @@
 import static android.content.Context.WINDOW_SERVICE;
 import static android.view.WindowManager.LayoutParams.TYPE_PRESENTATION;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.res.Resources;
 import android.hardware.display.DisplayManager;
@@ -300,6 +301,7 @@
         return dm.equalsPhysical(getResources().getDisplayMetrics());
     }
 
+    @UnsupportedAppUsage
     private static Context createPresentationContext(
             Context outerContext, Display display, int theme) {
         if (outerContext == null) {
diff --git a/core/java/android/app/ProgressDialog.java b/core/java/android/app/ProgressDialog.java
index 8a083eb..1b10fd7 100644
--- a/core/java/android/app/ProgressDialog.java
+++ b/core/java/android/app/ProgressDialog.java
@@ -18,6 +18,7 @@
 
 import com.android.internal.R;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.res.TypedArray;
 import android.graphics.drawable.Drawable;
@@ -63,10 +64,13 @@
      */
     public static final int STYLE_HORIZONTAL = 1;
     
+    @UnsupportedAppUsage
     private ProgressBar mProgress;
+    @UnsupportedAppUsage
     private TextView mMessageView;
     
     private int mProgressStyle = STYLE_SPINNER;
+    @UnsupportedAppUsage
     private TextView mProgressNumber;
     private String mProgressNumberFormat;
     private TextView mProgressPercent;
diff --git a/core/java/android/app/QueuedWork.java b/core/java/android/app/QueuedWork.java
index 56338f5..7626539 100644
--- a/core/java/android/app/QueuedWork.java
+++ b/core/java/android/app/QueuedWork.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.UnsupportedAppUsage;
 import android.os.Handler;
 import android.os.HandlerThread;
 import android.os.Looper;
@@ -70,6 +71,7 @@
 
     /** Finishers {@link #addFinisher added} and not yet {@link #removeFinisher removed} */
     @GuardedBy("sLock")
+    @UnsupportedAppUsage
     private static final LinkedList<Runnable> sFinishers = new LinkedList<>();
 
     /** {@link #getHandler() Lazily} created handler */
@@ -96,6 +98,7 @@
      *
      * @return the handler
      */
+    @UnsupportedAppUsage
     private static Handler getHandler() {
         synchronized (sLock) {
             if (sHandler == null) {
@@ -121,6 +124,7 @@
      *
      * @param finisher The runnable to add as finisher
      */
+    @UnsupportedAppUsage
     public static void addFinisher(Runnable finisher) {
         synchronized (sLock) {
             sFinishers.add(finisher);
@@ -132,6 +136,7 @@
      *
      * @param finisher The runnable to remove.
      */
+    @UnsupportedAppUsage
     public static void removeFinisher(Runnable finisher) {
         synchronized (sLock) {
             sFinishers.remove(finisher);
@@ -212,6 +217,7 @@
      * @param work The new runnable to process
      * @param shouldDelay If the message should be delayed
      */
+    @UnsupportedAppUsage
     public static void queue(Runnable work, boolean shouldDelay) {
         Handler handler = getHandler();
 
diff --git a/core/java/android/app/ResourcesManager.java b/core/java/android/app/ResourcesManager.java
index 30256b4..68869c65 100644
--- a/core/java/android/app/ResourcesManager.java
+++ b/core/java/android/app/ResourcesManager.java
@@ -20,6 +20,7 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.UnsupportedAppUsage;
 import android.content.pm.ActivityInfo;
 import android.content.res.ApkAssets;
 import android.content.res.AssetManager;
@@ -76,18 +77,21 @@
      * The global configuration upon which all Resources are based. Multi-window Resources
      * apply their overrides to this configuration.
      */
+    @UnsupportedAppUsage
     private final Configuration mResConfiguration = new Configuration();
 
     /**
      * A mapping of ResourceImpls and their configurations. These are heavy weight objects
      * which should be reused as much as possible.
      */
+    @UnsupportedAppUsage
     private final ArrayMap<ResourcesKey, WeakReference<ResourcesImpl>> mResourceImpls =
             new ArrayMap<>();
 
     /**
      * A list of Resource references that can be reused.
      */
+    @UnsupportedAppUsage
     private final ArrayList<WeakReference<Resources>> mResourceReferences = new ArrayList<>();
 
     private static class ApkKey {
@@ -144,6 +148,7 @@
      * Each Activity may has a base override configuration that is applied to each Resources object,
      * which in turn may have their own override configuration specified.
      */
+    @UnsupportedAppUsage
     private final WeakHashMap<IBinder, ActivityResources> mActivityResourceReferences =
             new WeakHashMap<>();
 
@@ -153,6 +158,7 @@
     private final ArrayMap<Pair<Integer, DisplayAdjustments>, WeakReference<Display>>
             mAdjustedDisplays = new ArrayMap<>();
 
+    @UnsupportedAppUsage
     public static ResourcesManager getInstance() {
         synchronized (ResourcesManager.class) {
             if (sResourcesManager == null) {
@@ -349,6 +355,7 @@
      * @return a new AssetManager.
     */
     @VisibleForTesting
+    @UnsupportedAppUsage
     protected @Nullable AssetManager createAssetManager(@NonNull final ResourcesKey key) {
         final AssetManager.Builder builder = new AssetManager.Builder();
 
@@ -1065,6 +1072,7 @@
      * @param assetPath The main asset path for which to add the library asset path.
      * @param libAsset The library asset path to add.
      */
+    @UnsupportedAppUsage
     public void appendLibAssetForMainAssetPath(String assetPath, String libAsset) {
         synchronized (this) {
             // Record which ResourcesImpl need updating
diff --git a/core/java/android/app/ResultInfo.java b/core/java/android/app/ResultInfo.java
index d5af08a..4335488 100644
--- a/core/java/android/app/ResultInfo.java
+++ b/core/java/android/app/ResultInfo.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.Intent;
 import android.os.Parcel;
 import android.os.Parcelable;
@@ -26,11 +27,15 @@
  * {@hide}
  */
 public class ResultInfo implements Parcelable {
+    @UnsupportedAppUsage
     public final String mResultWho;
+    @UnsupportedAppUsage
     public final int mRequestCode;
     public final int mResultCode;
+    @UnsupportedAppUsage
     public final Intent mData;
 
+    @UnsupportedAppUsage
     public ResultInfo(String resultWho, int requestCode, int resultCode,
             Intent data) {
         mResultWho = resultWho;
@@ -60,6 +65,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     public static final Parcelable.Creator<ResultInfo> CREATOR
             = new Parcelable.Creator<ResultInfo>() {
         public ResultInfo createFromParcel(Parcel in) {
diff --git a/core/java/android/app/SearchDialog.java b/core/java/android/app/SearchDialog.java
index 4abca9a..4a45150 100644
--- a/core/java/android/app/SearchDialog.java
+++ b/core/java/android/app/SearchDialog.java
@@ -17,6 +17,7 @@
 package android.app;
 
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.Context;
@@ -312,6 +313,7 @@
      * 
      * @param working true to show spinner, false to hide spinner
      */
+    @UnsupportedAppUsage
     public void setWorking(boolean working) {
         mWorkingSpinner.setAlpha(working ? 255 : 0);
         mWorkingSpinner.setVisible(working, false);
@@ -373,6 +375,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     static boolean isLandscapeMode(Context context) {
         return context.getResources().getConfiguration().orientation
                 == Configuration.ORIENTATION_LANDSCAPE;
@@ -517,6 +520,7 @@
     /**
      * Launch a search for the text in the query text field.
      */
+    @UnsupportedAppUsage
     public void launchQuerySearch() {
         launchQuerySearch(KeyEvent.KEYCODE_UNKNOWN, null);
     }
@@ -529,6 +533,7 @@
      * @param actionMsg The message for the action key that was pressed,
      *        or <code>null</code> if none.
      */
+    @UnsupportedAppUsage
     protected void launchQuerySearch(int actionKey, String actionMsg) {
         String query = mSearchAutoComplete.getText().toString();
         String action = Intent.ACTION_SEARCH;
diff --git a/core/java/android/app/SearchManager.java b/core/java/android/app/SearchManager.java
index ed6d2f5..9539f34 100644
--- a/core/java/android/app/SearchManager.java
+++ b/core/java/android/app/SearchManager.java
@@ -17,6 +17,7 @@
 package android.app;
 
 import android.annotation.SystemService;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ActivityNotFoundException;
 import android.content.ComponentName;
 import android.content.ContentResolver;
@@ -530,6 +531,7 @@
      * current search engine does not support voice search.
      * @hide
      */
+    @UnsupportedAppUsage
     public final static String DISABLE_VOICE_SEARCH
             = "android.search.DISABLE_VOICE_SEARCH";
 
@@ -545,8 +547,10 @@
     /* package */ OnDismissListener mDismissListener = null;
     /* package */ OnCancelListener mCancelListener = null;
 
+    @UnsupportedAppUsage
     private SearchDialog mSearchDialog;
 
+    @UnsupportedAppUsage
     /*package*/ SearchManager(Context context, Handler handler) throws ServiceNotFoundException {
         mContext = context;
         mHandler = handler;
@@ -609,6 +613,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public void startSearch(String initialQuery,
                             boolean selectInitialQuery,
                             ComponentName launchActivity,
@@ -710,6 +715,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public ComponentName getWebSearchActivity() {
         try {
             return mService.getWebSearchActivity();
@@ -770,6 +776,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public boolean isVisible() {
         return mSearchDialog == null? false : mSearchDialog.isShowing();
     }
@@ -866,6 +873,7 @@
      *
      * @hide because SearchableInfo is not part of the API.
      */
+    @UnsupportedAppUsage
     public Cursor getSuggestions(SearchableInfo searchable, String query) {
         return getSuggestions(searchable, query, -1);
     }
@@ -881,6 +889,7 @@
      *
      * @hide because SearchableInfo is not part of the API.
      */
+    @UnsupportedAppUsage
     public Cursor getSuggestions(SearchableInfo searchable, String query, int limit) {
         if (searchable == null) {
             return null;
@@ -970,6 +979,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public void launchAssist(Bundle args) {
         try {
             if (mService == null) {
diff --git a/core/java/android/app/SearchableInfo.java b/core/java/android/app/SearchableInfo.java
index a952915..ae6d32a 100644
--- a/core/java/android/app/SearchableInfo.java
+++ b/core/java/android/app/SearchableInfo.java
@@ -20,6 +20,7 @@
 import org.xmlpull.v1.XmlPullParserException;
 
 import android.annotation.StringRes;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.pm.ActivityInfo;
@@ -249,6 +250,7 @@
      * @return Returns a context related to the searchable activity
      * @hide
      */
+    @UnsupportedAppUsage
     public Context getActivityContext(Context context) {
         return createActivityContext(context, mSearchActivity);
     }
@@ -278,6 +280,7 @@
      * @return Returns a context related to the suggestion provider
      * @hide
      */
+    @UnsupportedAppUsage
     public Context getProviderContext(Context context, Context activityContext) {
         Context theirContext = null;
         if (mSearchActivity.getPackageName().equals(mSuggestProviderPackage)) {
@@ -307,6 +310,7 @@
      * @param cName The component name of the searchable activity
      * @throws IllegalArgumentException if the searchability info is invalid or insufficient
      */
+    @UnsupportedAppUsage
     private SearchableInfo(Context activityContext, AttributeSet attr, final ComponentName cName) {
         mSearchActivity = cName;
         
@@ -450,6 +454,7 @@
          * Gets the action message to use for queries.
          * @see android.R.styleable#SearchableActionKey_queryActionMsg
          */
+        @UnsupportedAppUsage
         public String getQueryActionMsg() {
             return mQueryActionMsg;
         }
@@ -458,6 +463,7 @@
          * Gets the action message to use for suggestions.
          * @see android.R.styleable#SearchableActionKey_suggestActionMsg
          */
+        @UnsupportedAppUsage
         public String getSuggestActionMsg() {
             return mSuggestActionMsg;
         }
@@ -466,6 +472,7 @@
          * Gets the name of the column to get the suggestion action message from.
          * @see android.R.styleable#SearchableActionKey_suggestActionMsgColumn
          */
+        @UnsupportedAppUsage
         public String getSuggestActionMsgColumn() {
             return mSuggestActionMsgColumn;
         }
@@ -490,6 +497,7 @@
      *
      * @hide ActionKeyInfo is hidden
      */
+    @UnsupportedAppUsage
     public ActionKeyInfo findActionKey(int keyCode) {
         if (mActionKeys == null) {
             return null;
@@ -623,6 +631,7 @@
      *
      * @hide deprecated functionality
      */
+    @UnsupportedAppUsage
     public int getLabelId() {
         return mLabelId;
     }
@@ -647,6 +656,7 @@
      *
      * @hide deprecated functionality
      */
+    @UnsupportedAppUsage
     public int getIconId() {
         return mIconId;
     }
diff --git a/core/java/android/app/Service.java b/core/java/android/app/Service.java
index ea0fd75..67acfe9 100644
--- a/core/java/android/app/Service.java
+++ b/core/java/android/app/Service.java
@@ -18,6 +18,7 @@
 
 import android.annotation.IntDef;
 import android.annotation.Nullable;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ComponentCallbacks2;
 import android.content.ComponentName;
 import android.content.Intent;
@@ -658,6 +659,7 @@
      * @hide
      */
     @Deprecated
+    @UnsupportedAppUsage
     public final void setForeground(boolean isForeground) {
         Log.w(TAG, "setForeground: ignoring old API call on " + getClass().getName());
     }
@@ -750,6 +752,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public final void attach(
             Context context,
             ActivityThread thread, String className, IBinder token,
@@ -777,10 +780,16 @@
     }
 
     // set by the thread after the constructor and before onCreate(Bundle icicle) is called.
+    @UnsupportedAppUsage
     private ActivityThread mThread = null;
+    @UnsupportedAppUsage
     private String mClassName = null;
+    @UnsupportedAppUsage
     private IBinder mToken = null;
+    @UnsupportedAppUsage
     private Application mApplication = null;
+    @UnsupportedAppUsage
     private IActivityManager mActivityManager = null;
+    @UnsupportedAppUsage
     private boolean mStartCompatibility = false;
 }
diff --git a/core/java/android/app/SharedPreferencesImpl.java b/core/java/android/app/SharedPreferencesImpl.java
index 6ac15a5..0f8976f 100644
--- a/core/java/android/app/SharedPreferencesImpl.java
+++ b/core/java/android/app/SharedPreferencesImpl.java
@@ -17,6 +17,7 @@
 package android.app;
 
 import android.annotation.Nullable;
+import android.annotation.UnsupportedAppUsage;
 import android.content.SharedPreferences;
 import android.os.FileUtils;
 import android.os.Looper;
@@ -63,6 +64,7 @@
     //  - acquire SharedPreferencesImpl.mLock before EditorImpl.mLock
     //  - acquire mWritingToDiskLock before EditorImpl.mLock
 
+    @UnsupportedAppUsage
     private final File mFile;
     private final File mBackupFile;
     private final int mMode;
@@ -103,6 +105,7 @@
     private final ExponentiallyBucketedHistogram mSyncTimes = new ExponentiallyBucketedHistogram(16);
     private int mNumSync = 0;
 
+    @UnsupportedAppUsage
     SharedPreferencesImpl(File file, int mode) {
         mFile = file;
         mBackupFile = makeBackupFile(file);
@@ -113,6 +116,7 @@
         startLoadFromDisk();
     }
 
+    @UnsupportedAppUsage
     private void startLoadFromDisk() {
         synchronized (mLock) {
             mLoaded = false;
@@ -195,6 +199,7 @@
         return new File(prefsFile.getPath() + ".bak");
     }
 
+    @UnsupportedAppUsage
     void startReloadIfChangedUnexpectedly() {
         synchronized (mLock) {
             // TODO: wait for any pending writes to disk?
diff --git a/core/java/android/app/StatusBarManager.java b/core/java/android/app/StatusBarManager.java
index c8a8313..2718bfa 100644
--- a/core/java/android/app/StatusBarManager.java
+++ b/core/java/android/app/StatusBarManager.java
@@ -18,6 +18,7 @@
 
 import android.annotation.IntDef;
 import android.annotation.SystemService;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.os.Binder;
 import android.os.IBinder;
@@ -39,11 +40,13 @@
 @SystemService(Context.STATUS_BAR_SERVICE)
 public class StatusBarManager {
 
+    @UnsupportedAppUsage
     public static final int DISABLE_EXPAND = View.STATUS_BAR_DISABLE_EXPAND;
     public static final int DISABLE_NOTIFICATION_ICONS = View.STATUS_BAR_DISABLE_NOTIFICATION_ICONS;
     public static final int DISABLE_NOTIFICATION_ALERTS
             = View.STATUS_BAR_DISABLE_NOTIFICATION_ALERTS;
     @Deprecated
+    @UnsupportedAppUsage
     public static final int DISABLE_NOTIFICATION_TICKER
             = View.STATUS_BAR_DISABLE_NOTIFICATION_TICKER;
     public static final int DISABLE_SYSTEM_INFO = View.STATUS_BAR_DISABLE_SYSTEM_INFO;
@@ -57,6 +60,7 @@
     public static final int DISABLE_NAVIGATION = 
             View.STATUS_BAR_DISABLE_HOME | View.STATUS_BAR_DISABLE_RECENT;
 
+    @UnsupportedAppUsage
     public static final int DISABLE_NONE = 0x00000000;
 
     public static final int DISABLE_MASK = DISABLE_EXPAND | DISABLE_NOTIFICATION_ICONS
@@ -107,14 +111,18 @@
     public static final int CAMERA_LAUNCH_SOURCE_POWER_DOUBLE_TAP = 1;
     public static final int CAMERA_LAUNCH_SOURCE_LIFT_TRIGGER = 2;
 
+    @UnsupportedAppUsage
     private Context mContext;
     private IStatusBarService mService;
+    @UnsupportedAppUsage
     private IBinder mToken = new Binder();
 
+    @UnsupportedAppUsage
     StatusBarManager(Context context) {
         mContext = context;
     }
 
+    @UnsupportedAppUsage
     private synchronized IStatusBarService getService() {
         if (mService == null) {
             mService = IStatusBarService.Stub.asInterface(
@@ -130,6 +138,7 @@
      * Disable some features in the status bar.  Pass the bitwise-or of the DISABLE_* flags.
      * To re-enable everything, pass {@link #DISABLE_NONE}.
      */
+    @UnsupportedAppUsage
     public void disable(int what) {
         try {
             final int userId = Binder.getCallingUserHandle().getIdentifier();
@@ -163,6 +172,7 @@
     /**
      * Expand the notifications panel.
      */
+    @UnsupportedAppUsage
     public void expandNotificationsPanel() {
         try {
             final IStatusBarService svc = getService();
@@ -177,6 +187,7 @@
     /**
      * Collapse the notifications and settings panels.
      */
+    @UnsupportedAppUsage
     public void collapsePanels() {
         try {
             final IStatusBarService svc = getService();
@@ -191,6 +202,7 @@
     /**
      * Expand the settings panel.
      */
+    @UnsupportedAppUsage
     public void expandSettingsPanel() {
         expandSettingsPanel(null);
     }
@@ -198,6 +210,7 @@
     /**
      * Expand the settings panel and open a subPanel, pass null to just open the settings panel.
      */
+    @UnsupportedAppUsage
     public void expandSettingsPanel(String subPanel) {
         try {
             final IStatusBarService svc = getService();
@@ -209,6 +222,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     public void setIcon(String slot, int iconId, int iconLevel, String contentDescription) {
         try {
             final IStatusBarService svc = getService();
@@ -221,6 +235,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     public void removeIcon(String slot) {
         try {
             final IStatusBarService svc = getService();
@@ -232,6 +247,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     public void setIconVisibility(String slot, boolean visible) {
         try {
             final IStatusBarService svc = getService();
diff --git a/core/java/android/app/TaskInfo.java b/core/java/android/app/TaskInfo.java
index 970a088..077b177 100644
--- a/core/java/android/app/TaskInfo.java
+++ b/core/java/android/app/TaskInfo.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.ComponentName;
 import android.content.Intent;
 import android.content.res.Configuration;
@@ -33,12 +34,14 @@
      * The id of the user the task was running as.
      * @hide
      */
+    @UnsupportedAppUsage
     public int userId;
 
     /**
      * The id of the ActivityStack that currently contains this task.
      * @hide
      */
+    @UnsupportedAppUsage
     public int stackId;
 
     /**
@@ -90,6 +93,7 @@
      * The last time this task was active since boot (including time spent in sleep).
      * @hide
      */
+    @UnsupportedAppUsage
     public long lastActiveTime;
 
     /**
@@ -102,18 +106,21 @@
      * True if the task can go in the split-screen primary stack.
      * @hide
      */
+    @UnsupportedAppUsage
     public boolean supportsSplitScreenMultiWindow;
 
     /**
      * The resize mode of the task. See {@link ActivityInfo#resizeMode}.
      * @hide
      */
+    @UnsupportedAppUsage
     public int resizeMode;
 
     /**
      * The current configuration of the task.
      * @hide
      */
+    @UnsupportedAppUsage
     public final Configuration configuration = new Configuration();
 
     TaskInfo() {
diff --git a/core/java/android/app/TaskStackListener.java b/core/java/android/app/TaskStackListener.java
index 895d12a..e23352a 100644
--- a/core/java/android/app/TaskStackListener.java
+++ b/core/java/android/app/TaskStackListener.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.UnsupportedAppUsage;
 import android.app.ActivityManager.TaskSnapshot;
 import android.content.ComponentName;
 import android.os.RemoteException;
@@ -27,40 +28,49 @@
  */
 public abstract class TaskStackListener extends ITaskStackListener.Stub {
     @Override
+    @UnsupportedAppUsage
     public void onTaskStackChanged() throws RemoteException {
     }
 
     @Override
+    @UnsupportedAppUsage
     public void onActivityPinned(String packageName, int userId, int taskId, int stackId)
             throws RemoteException {
     }
 
     @Override
+    @UnsupportedAppUsage
     public void onActivityUnpinned() throws RemoteException {
     }
 
     @Override
+    @UnsupportedAppUsage
     public void onPinnedActivityRestartAttempt(boolean clearedTask) throws RemoteException {
     }
 
     @Override
+    @UnsupportedAppUsage
     public void onPinnedStackAnimationStarted() throws RemoteException {
     }
 
     @Override
+    @UnsupportedAppUsage
     public void onPinnedStackAnimationEnded() throws RemoteException {
     }
 
     @Override
+    @UnsupportedAppUsage
     public void onActivityForcedResizable(String packageName, int taskId, int reason)
             throws RemoteException {
     }
 
     @Override
+    @UnsupportedAppUsage
     public void onActivityDismissingDockedStack() throws RemoteException {
     }
 
     @Override
+    @UnsupportedAppUsage
     public void onActivityLaunchOnSecondaryDisplayFailed() throws RemoteException {
     }
 
@@ -69,10 +79,12 @@
     }
 
     @Override
+    @UnsupportedAppUsage
     public void onTaskRemoved(int taskId) throws RemoteException {
     }
 
     @Override
+    @UnsupportedAppUsage
     public void onTaskMovedToFront(int taskId) throws RemoteException {
     }
 
@@ -86,15 +98,18 @@
     }
 
     @Override
+    @UnsupportedAppUsage
     public void onActivityRequestedOrientationChanged(int taskId, int requestedOrientation)
             throws RemoteException {
     }
 
     @Override
+    @UnsupportedAppUsage
     public void onTaskProfileLocked(int taskId, int userId) throws RemoteException {
     }
 
     @Override
+    @UnsupportedAppUsage
     public void onTaskSnapshotChanged(int taskId, TaskSnapshot snapshot) throws RemoteException {
     }
 }
diff --git a/core/java/android/app/TimePickerDialog.java b/core/java/android/app/TimePickerDialog.java
index 8686944..1b281d5 100644
--- a/core/java/android/app/TimePickerDialog.java
+++ b/core/java/android/app/TimePickerDialog.java
@@ -17,6 +17,7 @@
 package android.app;
 
 import android.annotation.TestApi;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.DialogInterface.OnClickListener;
@@ -43,6 +44,7 @@
     private static final String MINUTE = "minute";
     private static final String IS_24_HOUR = "is24hour";
 
+    @UnsupportedAppUsage
     private final TimePicker mTimePicker;
     private final OnTimeSetListener mTimeSetListener;
 
diff --git a/core/java/android/app/UiAutomation.java b/core/java/android/app/UiAutomation.java
index 44f28796..dbb6c3d 100644
--- a/core/java/android/app/UiAutomation.java
+++ b/core/java/android/app/UiAutomation.java
@@ -23,6 +23,7 @@
 import android.accessibilityservice.IAccessibilityServiceConnection;
 import android.annotation.NonNull;
 import android.annotation.TestApi;
+import android.annotation.UnsupportedAppUsage;
 import android.graphics.Bitmap;
 import android.graphics.Point;
 import android.graphics.Rect;
@@ -192,6 +193,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public UiAutomation(Looper looper, IUiAutomationConnection connection) {
         if (looper == null) {
             throw new IllegalArgumentException("Looper cannot be null!");
@@ -208,6 +210,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public void connect() {
         connect(0);
     }
@@ -279,6 +282,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public void disconnect() {
         synchronized (mLock) {
             if (mIsConnecting) {
diff --git a/core/java/android/app/UiAutomationConnection.java b/core/java/android/app/UiAutomationConnection.java
index ac3f2e7..b406d9e 100644
--- a/core/java/android/app/UiAutomationConnection.java
+++ b/core/java/android/app/UiAutomationConnection.java
@@ -18,6 +18,7 @@
 
 import android.accessibilityservice.AccessibilityServiceInfo;
 import android.accessibilityservice.IAccessibilityServiceClient;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.pm.IPackageManager;
 import android.graphics.Bitmap;
diff --git a/core/java/android/app/UiModeManager.java b/core/java/android/app/UiModeManager.java
index 0da5e24..4f172a4 100644
--- a/core/java/android/app/UiModeManager.java
+++ b/core/java/android/app/UiModeManager.java
@@ -19,6 +19,7 @@
 import android.annotation.IntDef;
 import android.annotation.SystemService;
 import android.annotation.TestApi;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.res.Configuration;
 import android.os.RemoteException;
@@ -126,6 +127,7 @@
 
     private IUiModeManager mService;
 
+    @UnsupportedAppUsage
     /*package*/ UiModeManager() throws ServiceNotFoundException {
         mService = IUiModeManager.Stub.asInterface(
                 ServiceManager.getServiceOrThrow(Context.UI_MODE_SERVICE));
diff --git a/core/java/android/app/UserSwitchObserver.java b/core/java/android/app/UserSwitchObserver.java
index c0f7a4c..25b243d 100644
--- a/core/java/android/app/UserSwitchObserver.java
+++ b/core/java/android/app/UserSwitchObserver.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.UnsupportedAppUsage;
 import android.os.IRemoteCallback;
 import android.os.RemoteException;
 
diff --git a/core/java/android/app/VrManager.java b/core/java/android/app/VrManager.java
index e118edd..6248e7c 100644
--- a/core/java/android/app/VrManager.java
+++ b/core/java/android/app/VrManager.java
@@ -6,6 +6,7 @@
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
 import android.annotation.TestApi;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ComponentName;
 import android.content.Context;
 import android.os.RemoteException;
@@ -50,6 +51,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     private final IVrManager mService;
     private Map<VrStateCallback, CallbackEntry> mCallbackMap = new ArrayMap<>();
 
diff --git a/core/java/android/app/WallpaperColors.java b/core/java/android/app/WallpaperColors.java
index 626b3be..ace814a 100644
--- a/core/java/android/app/WallpaperColors.java
+++ b/core/java/android/app/WallpaperColors.java
@@ -18,6 +18,7 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.UnsupportedAppUsage;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Color;
@@ -233,6 +234,7 @@
      * @see WallpaperColors#fromDrawable(Drawable)
      * @hide
      */
+    @UnsupportedAppUsage
     public WallpaperColors(@NonNull Color primaryColor, @Nullable Color secondaryColor,
             @Nullable Color tertiaryColor, int colorHints) {
 
@@ -347,6 +349,7 @@
      * @return True if dark text is supported.
      * @hide
      */
+    @UnsupportedAppUsage
     public int getColorHints() {
         return mColorHints;
     }
diff --git a/core/java/android/app/WallpaperManager.java b/core/java/android/app/WallpaperManager.java
index 6ad6c25..2a263d6 100644
--- a/core/java/android/app/WallpaperManager.java
+++ b/core/java/android/app/WallpaperManager.java
@@ -25,6 +25,7 @@
 import android.annotation.SdkConstant.SdkConstantType;
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ComponentName;
 import android.content.ContentResolver;
 import android.content.Context;
@@ -493,6 +494,7 @@
     }
 
     private static final Object sSync = new Object[0];
+    @UnsupportedAppUsage
     private static Globals sGlobals;
 
     static void initGlobals(IWallpaperManager service, Looper looper) {
@@ -517,6 +519,7 @@
     }
 
     /** @hide */
+    @UnsupportedAppUsage
     public IWallpaperManager getIWallpaperManager() {
         return sGlobals.mService;
     }
@@ -820,6 +823,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public Bitmap getBitmap() {
         return getBitmap(false);
     }
@@ -831,6 +835,7 @@
      * @see Bitmap.Config#HARDWARE
      * @hide
      */
+    @UnsupportedAppUsage
     public Bitmap getBitmap(boolean hardware) {
         return getBitmapAsUser(mContext.getUserId(), hardware);
     }
@@ -886,6 +891,7 @@
      * @param userId Owner of the wallpaper or UserHandle.USER_ALL.
      * @hide
      */
+    @UnsupportedAppUsage
     public void addOnColorsChangedListener(@NonNull OnColorsChangedListener listener,
             @NonNull Handler handler, int userId) {
         sGlobals.addOnColorsChangedListener(listener, handler, userId);
@@ -939,6 +945,7 @@
      * @return {@link WallpaperColors} or null if colors are unknown.
      * @hide
      */
+    @UnsupportedAppUsage
     public @Nullable WallpaperColors getWallpaperColors(int which, int userId) {
         return sGlobals.getWallpaperColors(which, userId);
     }
@@ -958,6 +965,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public ParcelFileDescriptor getWallpaperFile(@SetWallpaperFlags int which, int userId) {
         if (which != FLAG_SYSTEM && which != FLAG_LOCK) {
             throw new IllegalArgumentException("Must request exactly one kind of wallpaper");
@@ -1280,6 +1288,7 @@
      * requires permission {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL}.
      * @hide
      */
+    @UnsupportedAppUsage
     public int setBitmap(Bitmap fullImage, Rect visibleCropHint,
             boolean allowBackup, @SetWallpaperFlags int which, int userId)
             throws IOException {
@@ -1670,6 +1679,7 @@
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.SET_WALLPAPER_COMPONENT)
+    @UnsupportedAppUsage
     public boolean setWallpaperComponent(ComponentName name, int userId) {
         if (sGlobals.mService == null) {
             Log.w(TAG, "WallpaperService not running");
@@ -1847,6 +1857,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public static InputStream openDefaultWallpaper(Context context, @SetWallpaperFlags int which) {
         final String whichProp;
         final int defaultResId;
diff --git a/core/java/android/app/admin/DeviceAdminInfo.java b/core/java/android/app/admin/DeviceAdminInfo.java
index 5fbe5b3..5fe1af0 100644
--- a/core/java/android/app/admin/DeviceAdminInfo.java
+++ b/core/java/android/app/admin/DeviceAdminInfo.java
@@ -17,6 +17,7 @@
 package android.app.admin;
 
 import android.annotation.NonNull;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.pm.ActivityInfo;
@@ -180,6 +181,7 @@
     /** @hide */
     public static class PolicyInfo {
         public final int ident;
+        @UnsupportedAppUsage
         public final String tag;
         public final int label;
         public final int description;
@@ -479,6 +481,7 @@
     }
 
     /** @hide */
+    @UnsupportedAppUsage
     public ArrayList<PolicyInfo> getUsedPolicies() {
         ArrayList<PolicyInfo> res = new ArrayList<PolicyInfo>();
         for (int i=0; i<sPoliciesDisplayOrder.size(); i++) {
diff --git a/core/java/android/app/admin/DevicePolicyManager.java b/core/java/android/app/admin/DevicePolicyManager.java
index dfdb7eb..aa021a2 100644
--- a/core/java/android/app/admin/DevicePolicyManager.java
+++ b/core/java/android/app/admin/DevicePolicyManager.java
@@ -30,6 +30,7 @@
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
 import android.annotation.TestApi;
+import android.annotation.UnsupportedAppUsage;
 import android.annotation.UserIdInt;
 import android.annotation.WorkerThread;
 import android.app.Activity;
@@ -1137,6 +1138,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public static final String ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED
             = "android.app.action.DEVICE_POLICY_MANAGER_STATE_CHANGED";
 
@@ -1867,6 +1869,7 @@
      * @see #getActiveAdmins()
      * @hide
      */
+    @UnsupportedAppUsage
     public @Nullable List<ComponentName> getActiveAdminsAsUser(int userId) {
         if (mService != null) {
             try {
@@ -1894,6 +1897,7 @@
      * or uninstalled.
      * @hide
      */
+    @UnsupportedAppUsage
     public boolean packageHasActiveAdmins(String packageName, int userId) {
         if (mService != null) {
             try {
@@ -2129,6 +2133,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public int getPasswordQuality(@Nullable ComponentName admin, int userHandle) {
         if (mService != null) {
             try {
@@ -2194,6 +2199,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public int getPasswordMinimumLength(@Nullable ComponentName admin, int userHandle) {
         if (mService != null) {
             try {
@@ -2263,6 +2269,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public int getPasswordMinimumUpperCase(@Nullable ComponentName admin, int userHandle) {
         if (mService != null) {
             try {
@@ -2332,6 +2339,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public int getPasswordMinimumLowerCase(@Nullable ComponentName admin, int userHandle) {
         if (mService != null) {
             try {
@@ -2400,6 +2408,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public int getPasswordMinimumLetters(@Nullable ComponentName admin, int userHandle) {
         if (mService != null) {
             try {
@@ -2468,6 +2477,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public int getPasswordMinimumNumeric(@Nullable ComponentName admin, int userHandle) {
         if (mService != null) {
             try {
@@ -2535,6 +2545,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public int getPasswordMinimumSymbols(@Nullable ComponentName admin, int userHandle) {
         if (mService != null) {
             try {
@@ -2603,6 +2614,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public int getPasswordMinimumNonLetter(@Nullable ComponentName admin, int userHandle) {
         if (mService != null) {
             try {
@@ -2754,6 +2766,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public int getPasswordHistoryLength(@Nullable ComponentName admin, int userHandle) {
         if (mService != null) {
             try {
@@ -2880,6 +2893,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public int getCurrentFailedPasswordAttempts(int userHandle) {
         if (mService != null) {
             try {
@@ -2960,6 +2974,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public int getMaximumFailedPasswordsForWipe(@Nullable ComponentName admin, int userHandle) {
         if (mService != null) {
             try {
@@ -3232,6 +3247,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public long getMaximumTimeToLock(@Nullable ComponentName admin, int userHandle) {
         if (mService != null) {
             try {
@@ -3305,6 +3321,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public long getRequiredStrongAuthTimeout(@Nullable ComponentName admin, @UserIdInt int userId) {
         if (mService != null) {
             try {
@@ -3493,6 +3510,7 @@
      *            of the device admin that sets the proxy.
      * @hide
      */
+    @UnsupportedAppUsage
     public @Nullable ComponentName setGlobalProxy(@NonNull ComponentName admin, Proxy proxySpec,
             List<String> exclusionList ) {
         throwIfParentInstance("setGlobalProxy");
@@ -3827,6 +3845,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public int getStorageEncryptionStatus(int userHandle) {
         if (mService != null) {
             try {
@@ -4564,6 +4583,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public boolean getCameraDisabled(@Nullable ComponentName admin, int userHandle) {
         if (mService != null) {
             try {
@@ -4819,6 +4839,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public int getKeyguardDisabledFeatures(@Nullable ComponentName admin, int userHandle) {
         if (mService != null) {
             try {
@@ -4833,6 +4854,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public void setActiveAdmin(@NonNull ComponentName policyReceiver, boolean refreshing,
             int userHandle) {
         if (mService != null) {
@@ -4847,6 +4869,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public void setActiveAdmin(@NonNull ComponentName policyReceiver, boolean refreshing) {
         setActiveAdmin(policyReceiver, refreshing, myUserId());
     }
@@ -4867,6 +4890,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public void setActivePasswordState(PasswordMetrics metrics, int userHandle) {
         if (mService != null) {
             try {
@@ -4893,6 +4917,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public void reportFailedPasswordAttempt(int userHandle) {
         if (mService != null) {
             try {
@@ -4906,6 +4931,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     public void reportSuccessfulPasswordAttempt(int userHandle) {
         if (mService != null) {
             try {
@@ -5534,6 +5560,7 @@
      * @see #getProfileOwner()
      * @hide
      */
+    @UnsupportedAppUsage
     public @Nullable ComponentName getProfileOwnerAsUser(final int userId)
             throws IllegalArgumentException {
         if (mService != null) {
@@ -5652,6 +5679,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public void setDefaultSmsApplication(@NonNull ComponentName admin, String packageName) {
         throwIfParentInstance("setDefaultSmsApplication");
         if (mService != null) {
@@ -5867,6 +5895,7 @@
     }
 
     /** @hide per-user version */
+    @UnsupportedAppUsage
     public @Nullable List<PersistableBundle> getTrustAgentConfiguration(
             @Nullable ComponentName admin, @NonNull ComponentName agent, int userHandle) {
         if (mService != null) {
@@ -8836,6 +8865,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     private void throwIfParentInstance(String functionName) {
         if (mParentInstance) {
             throw new SecurityException(functionName + " cannot be called on the parent instance");
@@ -8918,6 +8948,7 @@
      *         mandatory or {@code null} if backups are not mandatory.
      * @hide
      */
+    @UnsupportedAppUsage
     public ComponentName getMandatoryBackupTransport() {
         throwIfParentInstance("getMandatoryBackupTransport");
         try {
diff --git a/core/java/android/app/admin/SecurityLog.java b/core/java/android/app/admin/SecurityLog.java
index 38b4f8f..170c802 100644
--- a/core/java/android/app/admin/SecurityLog.java
+++ b/core/java/android/app/admin/SecurityLog.java
@@ -18,6 +18,7 @@
 
 import android.annotation.IntDef;
 import android.annotation.TestApi;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ComponentName;
 import android.os.Parcel;
 import android.os.Parcelable;
@@ -476,6 +477,7 @@
          * Constructor used by native classes to generate SecurityEvent instances.
          * @hide
          */
+        @UnsupportedAppUsage
         /* package */ SecurityEvent(byte[] data) {
             this(0, data);
         }
diff --git a/core/java/android/app/assist/AssistContent.java b/core/java/android/app/assist/AssistContent.java
index 1c9f573..bdbce52 100644
--- a/core/java/android/app/assist/AssistContent.java
+++ b/core/java/android/app/assist/AssistContent.java
@@ -1,5 +1,6 @@
 package android.app.assist;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.ClipData;
 import android.content.Intent;
 import android.net.Uri;
@@ -13,12 +14,18 @@
  * {@link android.app.Activity#onProvideAssistContent Activity.onProvideAssistContent}.
  */
 public class AssistContent implements Parcelable {
+    @UnsupportedAppUsage
     private boolean mIsAppProvidedIntent = false;
     private boolean mIsAppProvidedWebUri = false;
+    @UnsupportedAppUsage
     private Intent mIntent;
+    @UnsupportedAppUsage
     private String mStructuredData;
+    @UnsupportedAppUsage
     private ClipData mClipData;
+    @UnsupportedAppUsage
     private Uri mUri;
+    @UnsupportedAppUsage
     private final Bundle mExtras;
 
     public AssistContent() {
@@ -148,6 +155,7 @@
         return mExtras;
     }
 
+    @UnsupportedAppUsage
     AssistContent(Parcel in) {
         if (in.readInt() != 0) {
             mIntent = Intent.CREATOR.createFromParcel(in);
@@ -166,6 +174,7 @@
         mIsAppProvidedWebUri = in.readInt() == 1;
     }
 
+    @UnsupportedAppUsage
     void writeToParcelInternal(Parcel dest, int flags) {
         if (mIntent != null) {
             dest.writeInt(1);
diff --git a/core/java/android/app/backup/BackupDataInput.java b/core/java/android/app/backup/BackupDataInput.java
index 26f9e3e..2a98ca7 100644
--- a/core/java/android/app/backup/BackupDataInput.java
+++ b/core/java/android/app/backup/BackupDataInput.java
@@ -17,6 +17,7 @@
 package android.app.backup;
 
 import android.annotation.SystemApi;
+import android.annotation.UnsupportedAppUsage;
 
 import java.io.FileDescriptor;
 import java.io.IOException;
@@ -67,7 +68,9 @@
     private boolean mHeaderReady;
 
     private static class EntityHeader {
+        @UnsupportedAppUsage
         String key;
+        @UnsupportedAppUsage
         int dataSize;
     }
 
diff --git a/core/java/android/app/backup/BackupDataInputStream.java b/core/java/android/app/backup/BackupDataInputStream.java
index 94c7845..0888066 100644
--- a/core/java/android/app/backup/BackupDataInputStream.java
+++ b/core/java/android/app/backup/BackupDataInputStream.java
@@ -16,6 +16,7 @@
 
 package android.app.backup;
 
+import android.annotation.UnsupportedAppUsage;
 import java.io.InputStream;
 import java.io.IOException;
 
@@ -37,7 +38,9 @@
  */
 public class BackupDataInputStream extends InputStream {
 
+    @UnsupportedAppUsage
     String key;
+    @UnsupportedAppUsage
     int dataSize;
 
     BackupDataInput mData;
diff --git a/core/java/android/app/backup/BackupDataOutput.java b/core/java/android/app/backup/BackupDataOutput.java
index 5a66f34..01961e7 100644
--- a/core/java/android/app/backup/BackupDataOutput.java
+++ b/core/java/android/app/backup/BackupDataOutput.java
@@ -17,6 +17,7 @@
 package android.app.backup;
 
 import android.annotation.SystemApi;
+import android.annotation.UnsupportedAppUsage;
 import android.os.ParcelFileDescriptor;
 
 import java.io.FileDescriptor;
@@ -67,6 +68,7 @@
     private final long mQuota;
     private final int mTransportFlags;
 
+    @UnsupportedAppUsage
     long mBackupWriter;
 
     /**
diff --git a/core/java/android/app/backup/BackupHelperDispatcher.java b/core/java/android/app/backup/BackupHelperDispatcher.java
index 6811532..e9acdbf 100644
--- a/core/java/android/app/backup/BackupHelperDispatcher.java
+++ b/core/java/android/app/backup/BackupHelperDispatcher.java
@@ -16,6 +16,7 @@
 
 package android.app.backup;
 
+import android.annotation.UnsupportedAppUsage;
 import android.os.ParcelFileDescriptor;
 import android.util.Log;
 
@@ -29,7 +30,9 @@
     private static final String TAG = "BackupHelperDispatcher";
 
     private static class Header {
+        @UnsupportedAppUsage
         int chunkSize; // not including the header
+        @UnsupportedAppUsage
         String keyPrefix;
     }
 
diff --git a/core/java/android/app/backup/BackupManager.java b/core/java/android/app/backup/BackupManager.java
index 912baf9..c6086f1 100644
--- a/core/java/android/app/backup/BackupManager.java
+++ b/core/java/android/app/backup/BackupManager.java
@@ -20,6 +20,7 @@
 import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
@@ -192,8 +193,10 @@
     public static final int ERROR_TRANSPORT_INVALID = -2;
 
     private Context mContext;
+    @UnsupportedAppUsage
     private static IBackupManager sService;
 
+    @UnsupportedAppUsage
     private static void checkServiceBinder() {
         if (sService == null) {
             sService = IBackupManager.Stub.asInterface(
diff --git a/core/java/android/app/backup/FileBackupHelperBase.java b/core/java/android/app/backup/FileBackupHelperBase.java
index 4ed5197..0caab98 100644
--- a/core/java/android/app/backup/FileBackupHelperBase.java
+++ b/core/java/android/app/backup/FileBackupHelperBase.java
@@ -16,6 +16,7 @@
 
 package android.app.backup;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.os.ParcelFileDescriptor;
 import android.util.Log;
@@ -101,6 +102,7 @@
         return (result == 0);
     }
 
+    @UnsupportedAppUsage
     public void writeNewStateDescription(ParcelFileDescriptor fd) {
         int result = writeSnapshot_native(mPtr, fd.getFileDescriptor());
         // TODO: Do something with the error.
diff --git a/core/java/android/app/backup/FullBackup.java b/core/java/android/app/backup/FullBackup.java
index b7a8da5..9a595b2 100644
--- a/core/java/android/app/backup/FullBackup.java
+++ b/core/java/android/app/backup/FullBackup.java
@@ -16,6 +16,7 @@
 
 package android.app.backup;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.pm.PackageManager;
 import android.content.res.XmlResourceParser;
@@ -90,6 +91,7 @@
     /**
      * @hide
      */
+    @UnsupportedAppUsage
     static public native int backupToTar(String packageName, String domain,
             String linkdomain, String rootpath, String path, FullBackupDataOutput output);
 
diff --git a/core/java/android/app/backup/FullBackupDataOutput.java b/core/java/android/app/backup/FullBackupDataOutput.java
index 18f4283..0ce8653 100644
--- a/core/java/android/app/backup/FullBackupDataOutput.java
+++ b/core/java/android/app/backup/FullBackupDataOutput.java
@@ -1,5 +1,6 @@
 package android.app.backup;
 
+import android.annotation.UnsupportedAppUsage;
 import android.os.ParcelFileDescriptor;
 
 /**
@@ -9,6 +10,7 @@
  */
 public class FullBackupDataOutput {
     // Currently a name-scoping shim around BackupDataOutput
+    @UnsupportedAppUsage
     private final BackupDataOutput mData;
     private final long mQuota;
     private final int mTransportFlags;
@@ -65,14 +67,17 @@
     }
 
     /** @hide - used only internally to the backup manager service's stream construction */
+    @UnsupportedAppUsage
     public FullBackupDataOutput(ParcelFileDescriptor fd) {
         this(fd, /*quota=*/ -1, /*transportFlags=*/ 0);
     }
 
     /** @hide */
+    @UnsupportedAppUsage
     public BackupDataOutput getData() { return mData; }
 
     /** @hide - used for measurement pass */
+    @UnsupportedAppUsage
     public void addSize(long size) {
         if (size > 0) {
             mSize += size;
diff --git a/core/java/android/app/job/JobInfo.java b/core/java/android/app/job/JobInfo.java
index 02afcc7..9baa16f 100644
--- a/core/java/android/app/job/JobInfo.java
+++ b/core/java/android/app/job/JobInfo.java
@@ -29,6 +29,7 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
+import android.annotation.UnsupportedAppUsage;
 import android.content.ClipData;
 import android.content.ComponentName;
 import android.net.NetworkRequest;
@@ -202,6 +203,7 @@
      * JobInfo priority if it is smaller).
      * @hide
      */
+    @UnsupportedAppUsage
     public static final int PRIORITY_FOREGROUND_APP = 30;
 
     /**
@@ -240,6 +242,7 @@
      *
      * @hide
      */
+    @UnsupportedAppUsage
     public static final int FLAG_WILL_BE_FOREGROUND = 1 << 0;
 
     /**
@@ -282,11 +285,13 @@
      */
     public static final int CONSTRAINT_FLAG_STORAGE_NOT_LOW = 1 << 3;
 
+    @UnsupportedAppUsage
     private final int jobId;
     private final PersistableBundle extras;
     private final Bundle transientExtras;
     private final ClipData clipData;
     private final int clipGrantFlags;
+    @UnsupportedAppUsage
     private final ComponentName service;
     private final int constraintFlags;
     private final TriggerContentUri[] triggerContentUris;
@@ -306,6 +311,7 @@
     private final long initialBackoffMillis;
     private final int backoffPolicy;
     private final int priority;
+    @UnsupportedAppUsage
     private final int flags;
 
     /**
@@ -1009,12 +1015,14 @@
         }
 
         /** @hide */
+        @UnsupportedAppUsage
         public Builder setPriority(int priority) {
             mPriority = priority;
             return this;
         }
 
         /** @hide */
+        @UnsupportedAppUsage
         public Builder setFlags(int flags) {
             mFlags = flags;
             return this;
diff --git a/core/java/android/app/job/JobParameters.java b/core/java/android/app/job/JobParameters.java
index d67f11b..578a9ae 100644
--- a/core/java/android/app/job/JobParameters.java
+++ b/core/java/android/app/job/JobParameters.java
@@ -18,6 +18,7 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.UnsupportedAppUsage;
 import android.app.job.IJobCallback;
 import android.content.ClipData;
 import android.net.Network;
@@ -59,11 +60,13 @@
         }
     }
 
+    @UnsupportedAppUsage
     private final int jobId;
     private final PersistableBundle extras;
     private final Bundle transientExtras;
     private final ClipData clipData;
     private final int clipGrantFlags;
+    @UnsupportedAppUsage
     private final IBinder callback;
     private final boolean overrideDeadlineExpired;
     private final Uri[] mTriggeredContentUris;
@@ -273,6 +276,7 @@
     }
 
     /** @hide */
+    @UnsupportedAppUsage
     public IJobCallback getCallback() {
         return IJobCallback.Stub.asInterface(callback);
     }
diff --git a/core/java/android/app/job/JobWorkItem.java b/core/java/android/app/job/JobWorkItem.java
index 995f522..bfc6df2 100644
--- a/core/java/android/app/job/JobWorkItem.java
+++ b/core/java/android/app/job/JobWorkItem.java
@@ -19,6 +19,7 @@
 import static android.app.job.JobInfo.NETWORK_BYTES_UNKNOWN;
 
 import android.annotation.BytesLong;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Intent;
 import android.os.Parcel;
 import android.os.Parcelable;
@@ -29,11 +30,15 @@
  * {@link JobParameters#dequeueWork() JobParameters.dequeueWork} for more details.
  */
 final public class JobWorkItem implements Parcelable {
+    @UnsupportedAppUsage
     final Intent mIntent;
     final long mNetworkDownloadBytes;
     final long mNetworkUploadBytes;
+    @UnsupportedAppUsage
     int mDeliveryCount;
+    @UnsupportedAppUsage
     int mWorkId;
+    @UnsupportedAppUsage
     Object mGrants;
 
     /**
@@ -219,6 +224,7 @@
         }
     };
 
+    @UnsupportedAppUsage
     JobWorkItem(Parcel in) {
         if (in.readInt() != 0) {
             mIntent = Intent.CREATOR.createFromParcel(in);
diff --git a/core/java/android/app/trust/TrustManager.java b/core/java/android/app/trust/TrustManager.java
index fb27bed..27abdcf 100644
--- a/core/java/android/app/trust/TrustManager.java
+++ b/core/java/android/app/trust/TrustManager.java
@@ -19,6 +19,7 @@
 import android.Manifest;
 import android.annotation.RequiresPermission;
 import android.annotation.SystemService;
+import android.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.hardware.biometrics.BiometricSourceType;
 import android.os.Handler;
@@ -74,6 +75,7 @@
      *
      * Requires the {@link android.Manifest.permission#ACCESS_KEYGUARD_SECURE_STORAGE} permission.
      */
+    @UnsupportedAppUsage
     public void reportUnlockAttempt(boolean successful, int userId) {
         try {
             mService.reportUnlockAttempt(successful, userId);
diff --git a/core/java/android/app/usage/ConfigurationStats.java b/core/java/android/app/usage/ConfigurationStats.java
index 080216c..dff9b61 100644
--- a/core/java/android/app/usage/ConfigurationStats.java
+++ b/core/java/android/app/usage/ConfigurationStats.java
@@ -15,6 +15,7 @@
  */
 package android.app.usage;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.res.Configuration;
 import android.os.Parcel;
 import android.os.Parcelable;
@@ -28,31 +29,37 @@
     /**
      * {@hide}
      */
+    @UnsupportedAppUsage
     public Configuration mConfiguration;
 
     /**
      * {@hide}
      */
+    @UnsupportedAppUsage
     public long mBeginTimeStamp;
 
     /**
      * {@hide}
      */
+    @UnsupportedAppUsage
     public long mEndTimeStamp;
 
     /**
      * {@hide}
      */
+    @UnsupportedAppUsage
     public long mLastTimeActive;
 
     /**
      * {@hide}
      */
+    @UnsupportedAppUsage
     public long mTotalTimeActive;
 
     /**
      * {@hide}
      */
+    @UnsupportedAppUsage
     public int mActivationCount;
 
     /**
diff --git a/core/java/android/app/usage/NetworkStatsManager.java b/core/java/android/app/usage/NetworkStatsManager.java
index 9f46f20..59ae334 100644
--- a/core/java/android/app/usage/NetworkStatsManager.java
+++ b/core/java/android/app/usage/NetworkStatsManager.java
@@ -21,6 +21,7 @@
 import android.annotation.Nullable;
 import android.annotation.SystemService;
 import android.annotation.TestApi;
+import android.annotation.UnsupportedAppUsage;
 import android.app.usage.NetworkStats.Bucket;
 import android.content.Context;
 import android.net.ConnectivityManager;
@@ -121,6 +122,7 @@
     /**
      * {@hide}
      */
+    @UnsupportedAppUsage
     public NetworkStatsManager(Context context) throws ServiceNotFoundException {
         this(context, INetworkStatsService.Stub.asInterface(
                 ServiceManager.getServiceOrThrow(Context.NETWORK_STATS_SERVICE)));
diff --git a/core/java/android/app/usage/UsageEvents.java b/core/java/android/app/usage/UsageEvents.java
index 3e90af3..9f22ad1 100644
--- a/core/java/android/app/usage/UsageEvents.java
+++ b/core/java/android/app/usage/UsageEvents.java
@@ -17,6 +17,7 @@
 
 import android.annotation.IntDef;
 import android.annotation.SystemApi;
+import android.annotation.UnsupportedAppUsage;
 import android.content.res.Configuration;
 import android.os.Parcel;
 import android.os.Parcelable;
@@ -177,27 +178,32 @@
         /**
          * {@hide}
          */
+        @UnsupportedAppUsage
         public String mPackage;
 
         /**
          * {@hide}
          */
+        @UnsupportedAppUsage
         public String mClass;
 
         /**
          * {@hide}
          */
+        @UnsupportedAppUsage
         public long mTimeStamp;
 
         /**
          * {@hide}
          */
+        @UnsupportedAppUsage
         public int mEventType;
 
         /**
          * Only present for {@link #CONFIGURATION_CHANGE} event types.
          * {@hide}
          */
+        @UnsupportedAppUsage
         public Configuration mConfiguration;
 
         /**
@@ -380,24 +386,30 @@
     }
 
     // Only used when creating the resulting events. Not used for reading/unparceling.
+    @UnsupportedAppUsage
     private List<Event> mEventsToWrite = null;
 
     // Only used for reading/unparceling events.
+    @UnsupportedAppUsage
     private Parcel mParcel = null;
+    @UnsupportedAppUsage
     private final int mEventCount;
 
+    @UnsupportedAppUsage
     private int mIndex = 0;
 
     /*
      * In order to save space, since ComponentNames will be duplicated everywhere,
      * we use a map and index into it.
      */
+    @UnsupportedAppUsage
     private String[] mStringPool;
 
     /**
      * Construct the iterator from a parcel.
      * {@hide}
      */
+    @UnsupportedAppUsage
     public UsageEvents(Parcel in) {
         byte[] bytes = in.readBlob();
         Parcel data = Parcel.obtain();
@@ -482,6 +494,7 @@
         }
     }
 
+    @UnsupportedAppUsage
     private int findStringIndex(String str) {
         final int index = Arrays.binarySearch(mStringPool, str);
         if (index < 0) {
@@ -493,6 +506,7 @@
     /**
      * Writes a single event to the parcel. Modify this when updating {@link Event}.
      */
+    @UnsupportedAppUsage
     private void writeEventToParcel(Event event, Parcel p, int flags) {
         final int packageIndex;
         if (event.mPackage != null) {
@@ -536,6 +550,7 @@
     /**
      * Reads a single event from the parcel. Modify this when updating {@link Event}.
      */
+    @UnsupportedAppUsage
     private void readEventFromParcel(Parcel p, Event eventOut) {
         final int packageIndex = p.readInt();
         if (packageIndex >= 0) {
diff --git a/core/java/android/app/usage/UsageStats.java b/core/java/android/app/usage/UsageStats.java
index 2b14841..0659a23 100644
--- a/core/java/android/app/usage/UsageStats.java
+++ b/core/java/android/app/usage/UsageStats.java
@@ -17,6 +17,7 @@
 package android.app.usage;
 
 import android.annotation.SystemApi;
+import android.annotation.UnsupportedAppUsage;
 import android.os.Bundle;
 import android.os.Parcel;
 import android.os.Parcelable;
@@ -31,32 +32,38 @@
     /**
      * {@hide}
      */
+    @UnsupportedAppUsage
     public String mPackageName;
 
     /**
      * {@hide}
      */
+    @UnsupportedAppUsage
     public long mBeginTimeStamp;
 
     /**
      * {@hide}
      */
+    @UnsupportedAppUsage
     public long mEndTimeStamp;
 
     /**
      * Last time used by the user with an explicit action (notification, activity launch).
      * {@hide}
      */
+    @UnsupportedAppUsage
     public long mLastTimeUsed;
 
     /**
      * {@hide}
      */
+    @UnsupportedAppUsage
     public long mTotalTimeInForeground;
 
     /**
      * {@hide}
      */
+    @UnsupportedAppUsage
     public int mLaunchCount;
 
     /**
@@ -67,6 +74,7 @@
     /**
      * {@hide}
      */
+    @UnsupportedAppUsage
     public int mLastEvent;
 
     /**
diff --git a/core/java/android/app/usage/UsageStatsManager.java b/core/java/android/app/usage/UsageStatsManager.java
index 72d209a..0994332 100644
--- a/core/java/android/app/usage/UsageStatsManager.java
+++ b/core/java/android/app/usage/UsageStatsManager.java
@@ -21,6 +21,7 @@
 import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
+import android.annotation.UnsupportedAppUsage;
 import android.app.PendingIntent;
 import android.content.Context;
 import android.content.pm.ParceledListSlice;
@@ -231,9 +232,12 @@
     @SystemApi
     public static final String EXTRA_TIME_USED = "android.app.usage.extra.TIME_USED";
 
+    @UnsupportedAppUsage
     private static final UsageEvents sEmptyResults = new UsageEvents();
 
+    @UnsupportedAppUsage
     private final Context mContext;
+    @UnsupportedAppUsage
     private final IUsageStatsManager mService;
 
     /**