diff --git a/apex/jobscheduler/framework/java/android/app/job/JobScheduler.java b/apex/jobscheduler/framework/java/android/app/job/JobScheduler.java
index bf5781beb52b8..361325dae7fd3 100644
--- a/apex/jobscheduler/framework/java/android/app/job/JobScheduler.java
+++ b/apex/jobscheduler/framework/java/android/app/job/JobScheduler.java
@@ -169,6 +169,7 @@ public abstract class JobScheduler {
      * @param tag Debugging tag for dumps associated with this job (instead of the service class)
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS)
     public abstract @Result int scheduleAsPackage(@NonNull JobInfo job, @NonNull String packageName,
@@ -211,6 +212,7 @@ public abstract class JobScheduler {
      * Returns a list of all currently-executing jobs.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract List<JobInfo> getStartedJobs();
 
     /**
@@ -220,5 +222,6 @@ public abstract class JobScheduler {
      * <p class="note">This is a slow operation, so it should be called sparingly.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract List<JobSnapshot> getAllJobSnapshots();
 }
\ No newline at end of file
diff --git a/core/java/android/content/ContentResolver.java b/core/java/android/content/ContentResolver.java
index 422d3f7c6784c..e35fb037582a4 100644
--- a/core/java/android/content/ContentResolver.java
+++ b/core/java/android/content/ContentResolver.java
@@ -839,6 +839,7 @@ public abstract class ContentResolver implements ContentInterface {
     }
 
     /** @hide */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     protected abstract IContentProvider acquireProvider(Context c, String name);
 
@@ -855,15 +856,19 @@ public abstract class ContentResolver implements ContentInterface {
     }
 
     /** @hide */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract boolean releaseProvider(IContentProvider icp);
     /** @hide */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     protected abstract IContentProvider acquireUnstableProvider(Context c, String name);
     /** @hide */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract boolean releaseUnstableProvider(IContentProvider icp);
     /** @hide */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract void unstableProviderDied(IContentProvider icp);
 
diff --git a/core/java/android/content/Context.java b/core/java/android/content/Context.java
index 46d4f222a6b40..fb1366d6d9edc 100644
--- a/core/java/android/content/Context.java
+++ b/core/java/android/content/Context.java
@@ -811,6 +811,7 @@ public abstract class Context {
      * case {@link #getOpPackageName()} will be the name of the primary package in
      * that process (so that app ops uid verification will work with the name).
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract String getBasePackageName();
 
@@ -927,6 +928,7 @@ public abstract class Context {
      * @see #MODE_PRIVATE
      * @removed
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract SharedPreferences getSharedPreferences(File file, @PreferencesMode int mode);
 
     /**
@@ -957,6 +959,7 @@ public abstract class Context {
     public abstract boolean deleteSharedPreferences(String name);
 
     /** @hide */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract void reloadSharedPreferences();
 
     /**
@@ -1045,6 +1048,7 @@ public abstract class Context {
      * @see #getSharedPreferences(String, int)
      * @removed
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract File getSharedPreferencesPath(String name);
 
     /**
@@ -1516,6 +1520,7 @@ public abstract class Context {
      * There is no guarantee when these files will be deleted.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Nullable
     @SystemApi
     public abstract File getPreloadsFileCache();
@@ -2184,6 +2189,7 @@ public abstract class Context {
      * @see #sendOrderedBroadcast(Intent, String, BroadcastReceiver, Handler, int, String, Bundle)
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract void sendBroadcastAsUserMultiplePermissions(Intent intent, UserHandle user,
             String[] receiverPermissions);
 
@@ -2214,6 +2220,7 @@ public abstract class Context {
      * @see #sendOrderedBroadcast(Intent, String, BroadcastReceiver, Handler, int, String, Bundle)
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     public abstract void sendBroadcast(Intent intent,
             @Nullable String receiverPermission,
@@ -2224,6 +2231,7 @@ public abstract class Context {
      * of an associated app op as per {@link android.app.AppOpsManager}.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract void sendBroadcast(Intent intent,
             String receiverPermission, int appOp);
@@ -2339,6 +2347,7 @@ public abstract class Context {
      * @see android.app.Activity#RESULT_OK
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     public abstract void sendOrderedBroadcast(@NonNull Intent intent,
             @Nullable String receiverPermission, @Nullable Bundle options,
@@ -2351,6 +2360,7 @@ public abstract class Context {
      * of an associated app op as per {@link android.app.AppOpsManager}.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract void sendOrderedBroadcast(Intent intent,
             String receiverPermission, int appOp, BroadcastReceiver resultReceiver,
@@ -2404,6 +2414,7 @@ public abstract class Context {
      * @see #sendBroadcast(Intent, String, Bundle)
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @RequiresPermission(android.Manifest.permission.INTERACT_ACROSS_USERS)
     public abstract void sendBroadcastAsUser(@RequiresPermission Intent intent,
@@ -2426,6 +2437,7 @@ public abstract class Context {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @RequiresPermission(android.Manifest.permission.INTERACT_ACROSS_USERS)
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     public abstract void sendBroadcastAsUser(@RequiresPermission Intent intent,
@@ -2472,6 +2484,7 @@ public abstract class Context {
      *       BroadcastReceiver, Handler, int, String, Bundle)
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @RequiresPermission(android.Manifest.permission.INTERACT_ACROSS_USERS)
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     public abstract void sendOrderedBroadcastAsUser(Intent intent, UserHandle user,
@@ -2485,6 +2498,7 @@ public abstract class Context {
      *       BroadcastReceiver, Handler, int, String, Bundle)
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @RequiresPermission(android.Manifest.permission.INTERACT_ACROSS_USERS)
     @UnsupportedAppUsage
     public abstract void sendOrderedBroadcastAsUser(Intent intent, UserHandle user,
@@ -2699,6 +2713,7 @@ public abstract class Context {
      * @hide
      * This is just here for sending CONNECTIVITY_ACTION.
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Deprecated
     @RequiresPermission(allOf = {
             android.Manifest.permission.INTERACT_ACROSS_USERS,
@@ -2989,6 +3004,7 @@ public abstract class Context {
      * @see #sendBroadcast
      * @see #unregisterReceiver
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Nullable
     @RequiresPermission(android.Manifest.permission.INTERACT_ACROSS_USERS_FULL)
     @UnsupportedAppUsage
@@ -3099,6 +3115,7 @@ public abstract class Context {
     /**
      * @hide like {@link #startForegroundService(Intent)} but for a specific user.
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Nullable
     @RequiresPermission(android.Manifest.permission.INTERACT_ACROSS_USERS)
     public abstract ComponentName startForegroundServiceAsUser(Intent service, UserHandle user);
@@ -3137,6 +3154,7 @@ public abstract class Context {
     /**
      * @hide like {@link #startService(Intent)} but for a specific user.
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Nullable
     @RequiresPermission(android.Manifest.permission.INTERACT_ACROSS_USERS)
     @UnsupportedAppUsage
@@ -3145,6 +3163,7 @@ public abstract class Context {
     /**
      * @hide like {@link #stopService(Intent)} but for a specific user.
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @RequiresPermission(android.Manifest.permission.INTERACT_ACROSS_USERS)
     public abstract boolean stopServiceAsUser(Intent service, UserHandle user);
 
@@ -5282,6 +5301,7 @@ public abstract class Context {
     public abstract int checkPermission(@NonNull String permission, int pid, int uid);
 
     /** @hide */
+    @SuppressWarnings("HiddenAbstractMethod")
     @PackageManager.PermissionResult
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     public abstract int checkPermission(@NonNull String permission, int pid, int uid,
@@ -5509,6 +5529,7 @@ public abstract class Context {
             @Intent.AccessUriMode int modeFlags);
 
     /** @hide */
+    @SuppressWarnings("HiddenAbstractMethod")
     @PackageManager.PermissionResult
     public abstract int checkUriPermission(Uri uri, int pid, int uid,
             @Intent.AccessUriMode int modeFlags, IBinder callerToken);
@@ -5793,6 +5814,7 @@ public abstract class Context {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract Context createApplicationContext(ApplicationInfo application,
             @CreatePackageOptions int flags) throws PackageManager.NameNotFoundException;
@@ -6024,6 +6046,7 @@ public abstract class Context {
      * @see #isCredentialProtectedStorage()
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     public abstract Context createCredentialProtectedStorageContext();
 
@@ -6036,6 +6059,7 @@ public abstract class Context {
      * @return The compatibility info holder, or null if not required by the application.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract DisplayAdjustments getDisplayAdjustments(int displayId);
 
     /**
@@ -6070,12 +6094,14 @@ public abstract class Context {
      * @see #getDisplay()
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @TestApi
     public abstract int getDisplayId();
 
     /**
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract void updateDisplay(int displayId);
 
     /**
@@ -6104,6 +6130,7 @@ public abstract class Context {
      * @see #createCredentialProtectedStorageContext()
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     public abstract boolean isCredentialProtectedStorage();
 
@@ -6111,6 +6138,7 @@ public abstract class Context {
      * Returns true if the context can load unsafe resources, e.g. fonts.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract boolean canLoadUnsafeResources();
 
     /**
diff --git a/core/java/android/content/pm/PackageManager.java b/core/java/android/content/pm/PackageManager.java
index a77d8b17e1f73..2d3fb24c02cf0 100644
--- a/core/java/android/content/pm/PackageManager.java
+++ b/core/java/android/content/pm/PackageManager.java
@@ -3919,6 +3919,7 @@ public abstract class PackageManager {
      *             found on the system.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @RequiresPermission(Manifest.permission.INTERACT_ACROSS_USERS)
     @UnsupportedAppUsage
     public abstract PackageInfo getPackageInfoAsUser(@NonNull String packageName,
@@ -3985,6 +3986,7 @@ public abstract class PackageManager {
      *         does not contain such an activity.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract @Nullable Intent getCarLaunchIntentForPackage(@NonNull String packageName);
 
     /**
@@ -4050,6 +4052,7 @@ public abstract class PackageManager {
      *             found on the system.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract int getPackageUidAsUser(@NonNull String packageName, @UserIdInt int userId)
             throws NameNotFoundException;
@@ -4068,6 +4071,7 @@ public abstract class PackageManager {
      *             found on the system.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract int getPackageUidAsUser(@NonNull String packageName,
             @PackageInfoFlags int flags, @UserIdInt int userId) throws NameNotFoundException;
@@ -4110,6 +4114,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     public abstract boolean arePermissionsIndividuallyControlled();
 
@@ -4118,6 +4123,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract boolean isWirelessConsentModeEnabled();
 
     /**
@@ -4170,6 +4176,7 @@ public abstract class PackageManager {
             @ApplicationInfoFlags int flags) throws NameNotFoundException;
 
     /** {@hide} */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @UnsupportedAppUsage
     public abstract ApplicationInfo getApplicationInfoAsUser(@NonNull String packageName,
@@ -4360,6 +4367,7 @@ public abstract class PackageManager {
      *         deleted with {@code DELETE_KEEP_DATA} flag set).
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @SystemApi
     @RequiresPermission(android.Manifest.permission.INTERACT_ACROSS_USERS_FULL)
@@ -4408,6 +4416,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     @NonNull
     @TestApi
@@ -4521,6 +4530,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @RequiresPermission(android.Manifest.permission.GRANT_RUNTIME_PERMISSIONS)
     public abstract void grantRuntimePermission(@NonNull String packageName,
@@ -4547,6 +4557,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @RequiresPermission(android.Manifest.permission.REVOKE_RUNTIME_PERMISSIONS)
     public abstract void revokeRuntimePermission(@NonNull String packageName,
@@ -4591,6 +4602,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @RequiresPermission(anyOf = {
             android.Manifest.permission.GRANT_RUNTIME_PERMISSIONS,
@@ -4613,6 +4625,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @RequiresPermission(anyOf = {
             android.Manifest.permission.GRANT_RUNTIME_PERMISSIONS,
@@ -4888,6 +4901,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract boolean shouldShowRequestPermissionRationale(@NonNull String permName);
 
@@ -5003,6 +5017,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @TestApi
     public abstract @Nullable String[] getNamesForUids(int[] uids);
 
@@ -5019,6 +5034,7 @@ public abstract class PackageManager {
      *             found on the system.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract int getUidForSharedUser(@NonNull String sharedUserName)
             throws NameNotFoundException;
@@ -5062,6 +5078,7 @@ public abstract class PackageManager {
      *         deleted with {@code DELETE_KEEP_DATA} flag set).
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @TestApi
     public abstract List<ApplicationInfo> getInstalledApplicationsAsUser(
@@ -5074,6 +5091,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @RequiresPermission(Manifest.permission.ACCESS_INSTANT_APPS)
     public abstract @NonNull List<InstantAppInfo> getInstantApps();
@@ -5085,6 +5103,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @RequiresPermission(Manifest.permission.ACCESS_INSTANT_APPS)
     public abstract @Nullable Drawable getInstantAppIcon(String packageName);
@@ -5133,6 +5152,7 @@ public abstract class PackageManager {
      * deprecated
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract int getInstantAppCookieMaxSize();
 
     /**
@@ -5190,6 +5210,7 @@ public abstract class PackageManager {
     /**
      * @removed
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract boolean setInstantAppCookie(@Nullable byte[] cookie);
 
     /**
@@ -5228,6 +5249,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract @NonNull List<SharedLibraryInfo> getSharedLibrariesAsUser(
             @InstallFlags int flags, @UserIdInt int userId);
 
@@ -5240,6 +5262,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @RequiresPermission(Manifest.permission.ACCESS_SHARED_LIBRARIES)
     @SystemApi
@@ -5259,6 +5282,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     @TestApi
     public abstract @NonNull String getServicesSystemSharedLibraryPackageName();
@@ -5270,6 +5294,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     @TestApi
     public abstract @NonNull String getSharedSystemSharedLibraryPackageName();
@@ -5376,6 +5401,7 @@ public abstract class PackageManager {
      *         containing something else, such as the activity resolver.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Nullable
     @UnsupportedAppUsage
     public abstract ResolveInfo resolveActivityAsUser(@NonNull Intent intent,
@@ -5417,6 +5443,7 @@ public abstract class PackageManager {
      *         empty list is returned.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @UnsupportedAppUsage
     public abstract List<ResolveInfo> queryIntentActivitiesAsUser(@NonNull Intent intent,
@@ -5440,6 +5467,7 @@ public abstract class PackageManager {
      *         empty list is returned.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @RequiresPermission(Manifest.permission.INTERACT_ACROSS_USERS)
     @SystemApi
@@ -5502,6 +5530,7 @@ public abstract class PackageManager {
      *         no matching receivers, an empty list or null is returned.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @SystemApi
     @RequiresPermission(Manifest.permission.INTERACT_ACROSS_USERS)
@@ -5513,6 +5542,7 @@ public abstract class PackageManager {
     /**
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @UnsupportedAppUsage
     public abstract List<ResolveInfo> queryBroadcastReceiversAsUser(@NonNull Intent intent,
@@ -5551,6 +5581,7 @@ public abstract class PackageManager {
     /**
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Nullable
     public abstract ResolveInfo resolveServiceAsUser(@NonNull Intent intent,
             @ResolveInfoFlags int flags, @UserIdInt int userId);
@@ -5583,6 +5614,7 @@ public abstract class PackageManager {
      *         empty list or null is returned.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @UnsupportedAppUsage
     public abstract List<ResolveInfo> queryIntentServicesAsUser(@NonNull Intent intent,
@@ -5621,6 +5653,7 @@ public abstract class PackageManager {
      *         no matching services, an empty list or null is returned.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @UnsupportedAppUsage
     public abstract List<ResolveInfo> queryIntentContentProvidersAsUser(
@@ -5688,6 +5721,7 @@ public abstract class PackageManager {
      *         provider. If a provider was not found, returns null.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Nullable
     @UnsupportedAppUsage
     public abstract ProviderInfo resolveContentProviderAsUser(@NonNull String providerName,
@@ -6072,6 +6106,7 @@ public abstract class PackageManager {
      * @return the drawable or null if no drawable is required.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Nullable
     @UnsupportedAppUsage
     public abstract Drawable getUserBadgeForDensity(@NonNull UserHandle user, int density);
@@ -6090,6 +6125,7 @@ public abstract class PackageManager {
      * @return the drawable or null if no drawable is required.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Nullable
     @UnsupportedAppUsage
     public abstract Drawable getUserBadgeForDensityNoBackground(@NonNull UserHandle user,
@@ -6228,6 +6264,7 @@ public abstract class PackageManager {
      * TODO(b/170852794): mark maxTargetSdk as {@code Build.VERSION_CODES.S}
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170928809,
             publicAlternatives = "Use {@code Context#createContextAsUser(UserHandle, int)}"
@@ -6280,6 +6317,7 @@ public abstract class PackageManager {
      *
      * @deprecated use {@link PackageInstaller#installExistingPackage()} instead.
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Deprecated
     @SystemApi
     public abstract int installExistingPackage(@NonNull String packageName)
@@ -6292,6 +6330,7 @@ public abstract class PackageManager {
      *
      * @deprecated use {@link PackageInstaller#installExistingPackage()} instead.
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Deprecated
     @SystemApi
     public abstract int installExistingPackage(@NonNull String packageName,
@@ -6304,6 +6343,7 @@ public abstract class PackageManager {
      *
      * @deprecated use {@link PackageInstaller#installExistingPackage()} instead.
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Deprecated
     @RequiresPermission(anyOf = {
             Manifest.permission.INSTALL_EXISTING_PACKAGES,
@@ -6384,6 +6424,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @RequiresPermission(android.Manifest.permission.INTENT_FILTER_VERIFICATION_AGENT)
     public abstract void verifyIntentFilter(int verificationId, int verificationCode,
@@ -6409,6 +6450,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @RequiresPermission(Manifest.permission.INTERACT_ACROSS_USERS_FULL)
     public abstract int getIntentVerificationStatusAsUser(@NonNull String packageName,
@@ -6434,6 +6476,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @RequiresPermission(android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
     public abstract boolean updateIntentVerificationStatusAsUser(@NonNull String packageName,
@@ -6451,6 +6494,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @SystemApi
     public abstract List<IntentFilterVerificationInfo> getIntentFilterVerifications(
@@ -6467,6 +6511,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @SystemApi
     public abstract List<IntentFilter> getAllIntentFilters(@NonNull String packageName);
@@ -6481,6 +6526,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Nullable
     @SystemApi
     @RequiresPermission(Manifest.permission.INTERACT_ACROSS_USERS_FULL)
@@ -6498,6 +6544,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @RequiresPermission(allOf = {
             Manifest.permission.SET_PREFERRED_APPLICATIONS,
@@ -6524,6 +6571,7 @@ public abstract class PackageManager {
             @Nullable String installerPackageName);
 
     /** @hide */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @RequiresPermission(Manifest.permission.INSTALL_PACKAGES)
     public abstract void setUpdateAvailable(@NonNull String packageName, boolean updateAvaialble);
@@ -6544,6 +6592,7 @@ public abstract class PackageManager {
      *            indicate that no callback is desired.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @RequiresPermission(Manifest.permission.DELETE_PACKAGES)
     @UnsupportedAppUsage
     public abstract void deletePackage(@NonNull String packageName,
@@ -6564,6 +6613,7 @@ public abstract class PackageManager {
      * @param userId The user Id
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @RequiresPermission(anyOf = {
             Manifest.permission.DELETE_PACKAGES,
             Manifest.permission.INTERACT_ACROSS_USERS_FULL})
@@ -6581,6 +6631,7 @@ public abstract class PackageManager {
      *
      * @deprecated use {@link #getInstallSourceInfo(String)} instead
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Deprecated
     @Nullable
     public abstract String getInstallerPackageName(@NonNull String packageName);
@@ -6620,6 +6671,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract void clearApplicationUserData(@NonNull String packageName,
             @Nullable IPackageDataObserver observer);
@@ -6639,6 +6691,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract void deleteApplicationCacheFiles(@NonNull String packageName,
             @Nullable IPackageDataObserver observer);
@@ -6661,6 +6714,7 @@ public abstract class PackageManager {
      *            callback is desired.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract void deleteApplicationCacheFilesAsUser(@NonNull String packageName,
             @UserIdInt int userId, @Nullable IPackageDataObserver observer);
@@ -6694,6 +6748,7 @@ public abstract class PackageManager {
     }
 
     /** {@hide} */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract void freeStorageAndNotify(@Nullable String volumeUuid, long freeStorageSize,
             @Nullable IPackageDataObserver observer);
@@ -6727,6 +6782,7 @@ public abstract class PackageManager {
     }
 
     /** {@hide} */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract void freeStorage(@Nullable String volumeUuid, long freeStorageSize,
             @Nullable IntentSender pi);
@@ -6750,6 +6806,7 @@ public abstract class PackageManager {
      * @deprecated use {@link StorageStatsManager} instead.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Deprecated
     @UnsupportedAppUsage
     public abstract void getPackageSizeInfoAsUser(@NonNull String packageName,
@@ -6881,6 +6938,7 @@ public abstract class PackageManager {
      * an app to be responsible for a particular role and to check current role
      * holders, see {@link android.app.role.RoleManager}.
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Deprecated
     @UnsupportedAppUsage
     public abstract void replacePreferredActivity(@NonNull IntentFilter filter, int match,
@@ -6988,6 +7046,7 @@ public abstract class PackageManager {
      * default, if any.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Nullable
     @UnsupportedAppUsage
     public abstract ComponentName getHomeActivities(@NonNull List<ResolveInfo> outActivities);
@@ -7089,6 +7148,7 @@ public abstract class PackageManager {
      * @param userId Ther userId of the user whose restrictions are to be flushed.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract void flushPackageRestrictionsAsUser(@UserIdInt int userId);
 
@@ -7099,6 +7159,7 @@ public abstract class PackageManager {
      * or by installing it, such as with {@link #installExistingPackage(String)}
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract boolean setApplicationHiddenSettingAsUser(@NonNull String packageName,
             boolean hidden, @NonNull UserHandle userHandle);
@@ -7108,6 +7169,7 @@ public abstract class PackageManager {
      * @see #setApplicationHiddenSettingAsUser(String, boolean, UserHandle)
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract boolean getApplicationHiddenSettingAsUser(@NonNull String packageName,
             @NonNull UserHandle userHandle);
@@ -7141,6 +7203,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @RequiresPermission(Manifest.permission.OBSERVE_GRANT_REVOKE_PERMISSIONS)
     public abstract void addOnPermissionsChangeListener(
@@ -7153,6 +7216,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @RequiresPermission(Manifest.permission.OBSERVE_GRANT_REVOKE_PERMISSIONS)
     public abstract void removeOnPermissionsChangeListener(
@@ -7166,6 +7230,7 @@ public abstract class PackageManager {
      *        application's AndroidManifest.xml.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @UnsupportedAppUsage
     public abstract KeySet getKeySetByAlias(@NonNull String packageName, @NonNull String alias);
@@ -7173,6 +7238,7 @@ public abstract class PackageManager {
     /** Return the signing {@link KeySet} for this application.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @UnsupportedAppUsage
     public abstract KeySet getSigningKeySet(@NonNull String packageName);
@@ -7184,6 +7250,7 @@ public abstract class PackageManager {
      * Compare to {@link #isSignedByExactly(String packageName, KeySet ks)}.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract boolean isSignedBy(@NonNull String packageName, @NonNull KeySet ks);
 
@@ -7193,6 +7260,7 @@ public abstract class PackageManager {
      * {@link #isSignedBy(String packageName, KeySet ks)}.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract boolean isSignedByExactly(@NonNull String packageName, @NonNull KeySet ks);
 
@@ -7410,6 +7478,7 @@ public abstract class PackageManager {
      * @throws IllegalArgumentException if the package was not found.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract boolean isPackageSuspendedForUser(@NonNull String packageName, int userId);
 
@@ -7485,6 +7554,7 @@ public abstract class PackageManager {
      * @param packageName the package to change the category hint for.
      * @param categoryHint the category hint to set.
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract void setApplicationCategoryHint(@NonNull String packageName,
             @ApplicationInfo.Category int categoryHint);
 
@@ -7500,34 +7570,43 @@ public abstract class PackageManager {
     }
 
     /** {@hide} */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract int getMoveStatus(int moveId);
 
     /** {@hide} */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract void registerMoveCallback(@NonNull MoveCallback callback,
             @NonNull Handler handler);
     /** {@hide} */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract void unregisterMoveCallback(@NonNull MoveCallback callback);
 
     /** {@hide} */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     public abstract int movePackage(@NonNull String packageName, @NonNull VolumeInfo vol);
     /** {@hide} */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     public abstract @Nullable VolumeInfo getPackageCurrentVolume(@NonNull ApplicationInfo app);
     /** {@hide} */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     public abstract List<VolumeInfo> getPackageCandidateVolumes(
             @NonNull ApplicationInfo app);
 
     /** {@hide} */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract int movePrimaryStorage(@NonNull VolumeInfo vol);
     /** {@hide} */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract @Nullable VolumeInfo getPrimaryStorageCurrentVolume();
     /** {@hide} */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract @NonNull List<VolumeInfo> getPrimaryStorageCandidateVolumes();
 
     /**
@@ -7537,6 +7616,7 @@ public abstract class PackageManager {
      * @return identity that uniquely identifies current device
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     public abstract VerifierDeviceIdentity getVerifierDeviceIdentity();
 
@@ -7545,6 +7625,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract boolean isUpgrade();
 
@@ -7574,6 +7655,7 @@ public abstract class PackageManager {
      *            {@link #ONLY_IF_NO_MATCH_FOUND}.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract void addCrossProfileIntentFilter(@NonNull IntentFilter filter,
             @UserIdInt int sourceUserId, @UserIdInt int targetUserId, int flags);
@@ -7585,12 +7667,14 @@ public abstract class PackageManager {
      * @param sourceUserId The source user id.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract void clearCrossProfileIntentFilters(@UserIdInt int sourceUserId);
 
     /**
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @UnsupportedAppUsage
     public abstract Drawable loadItemIcon(@NonNull PackageItemInfo itemInfo,
@@ -7599,12 +7683,14 @@ public abstract class PackageManager {
     /**
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @NonNull
     @UnsupportedAppUsage
     public abstract Drawable loadUnbadgedItemIcon(@NonNull PackageItemInfo itemInfo,
             @Nullable ApplicationInfo appInfo);
 
     /** {@hide} */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract boolean isPackageAvailable(@NonNull String packageName);
 
@@ -7825,6 +7911,7 @@ public abstract class PackageManager {
      *         user, {@code INSTALL_REASON_UNKNOWN} is returned.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @TestApi
     @InstallReason
     public abstract int getInstallReason(@NonNull String packageName, @NonNull UserHandle user);
@@ -7853,6 +7940,7 @@ public abstract class PackageManager {
      * @see {@link android.content.Intent#ACTION_INSTANT_APP_RESOLVER_SETTINGS}
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Nullable
     @SystemApi
     public abstract ComponentName getInstantAppResolverSettingsComponent();
@@ -7864,6 +7952,7 @@ public abstract class PackageManager {
      * @see {@link android.content.Intent#ACTION_INSTALL_INSTANT_APP_PACKAGE}
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Nullable
     @SystemApi
     public abstract ComponentName getInstantAppInstallerComponent();
@@ -7874,6 +7963,7 @@ public abstract class PackageManager {
      * @see {@link android.provider.Settings.Secure#ANDROID_ID}
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @Nullable
     public abstract String getInstantAppAndroidId(@NonNull String packageName,
             @NonNull UserHandle user);
@@ -7918,6 +8008,7 @@ public abstract class PackageManager {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     public abstract void registerDexModule(@NonNull String dexModulePath,
             @Nullable DexModuleRegisterCallback callback);
diff --git a/core/java/android/hardware/camera2/CameraCaptureSession.java b/core/java/android/hardware/camera2/CameraCaptureSession.java
index f0a83f0b00b03..e8581595ad916 100644
--- a/core/java/android/hardware/camera2/CameraCaptureSession.java
+++ b/core/java/android/hardware/camera2/CameraCaptureSession.java
@@ -188,6 +188,7 @@ public abstract class CameraCaptureSession implements AutoCloseable {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract void prepare(int maxCount, @NonNull Surface surface)
             throws CameraAccessException;
 
@@ -227,6 +228,7 @@ public abstract class CameraCaptureSession implements AutoCloseable {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract void tearDown(@NonNull Surface surface) throws CameraAccessException;
 
     /**
diff --git a/core/java/android/hardware/radio/RadioTuner.java b/core/java/android/hardware/radio/RadioTuner.java
index 0edd05533dd3e..969db96561d78 100644
--- a/core/java/android/hardware/radio/RadioTuner.java
+++ b/core/java/android/hardware/radio/RadioTuner.java
@@ -257,6 +257,7 @@ public abstract class RadioTuner {
      * @throws IllegalArgumentException if id==0
      * @hide This API is not thoroughly elaborated yet
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract @Nullable Bitmap getMetadataImage(int id);
 
     /**
diff --git a/core/java/android/inputmethodservice/AbstractInputMethodService.java b/core/java/android/inputmethodservice/AbstractInputMethodService.java
index 3ca5207d867c1..cd436374b489b 100644
--- a/core/java/android/inputmethodservice/AbstractInputMethodService.java
+++ b/core/java/android/inputmethodservice/AbstractInputMethodService.java
@@ -202,6 +202,7 @@ public abstract class AbstractInputMethodService extends Service
      * @param args The arguments passed to the dump method.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     abstract void dumpProtoInternal(FileDescriptor fd, String[] args);
 
     /**
diff --git a/core/java/android/service/autofill/InternalTransformation.java b/core/java/android/service/autofill/InternalTransformation.java
index 0dba2b9bb9a61..d31ea99470cfa 100644
--- a/core/java/android/service/autofill/InternalTransformation.java
+++ b/core/java/android/service/autofill/InternalTransformation.java
@@ -45,6 +45,7 @@ public abstract class InternalTransformation implements Transformation, Parcelab
      * @param template the {@link RemoteViews presentation template}.
      * @param childViewId resource id of the child view inside the template.
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     abstract void apply(@NonNull ValueFinder finder, @NonNull RemoteViews template,
             int childViewId) throws Exception;
 
diff --git a/core/java/android/view/ViewStructure.java b/core/java/android/view/ViewStructure.java
index 606e8f99999a7..29ce231d5d87e 100644
--- a/core/java/android/view/ViewStructure.java
+++ b/core/java/android/view/ViewStructure.java
@@ -97,6 +97,7 @@ public abstract class ViewStructure {
     public abstract void setVisibility(int visibility);
 
     /** @hide */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract void setAssistBlocked(boolean state);
 
     /**
@@ -431,6 +432,7 @@ public abstract class ViewStructure {
     public abstract void asyncCommit();
 
     /** @hide */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract Rect getTempRect();
 
     /**
diff --git a/core/java/android/view/Window.java b/core/java/android/view/Window.java
index 8dd4b667d357c..9c163783124e9 100644
--- a/core/java/android/view/Window.java
+++ b/core/java/android/view/Window.java
@@ -1387,6 +1387,7 @@ public abstract class Window {
     }
 
     /** @hide */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract void alwaysReadCloseOnTouchAttr();
 
@@ -1567,6 +1568,7 @@ public abstract class Window {
      *
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract void clearContentView();
 
     /**
@@ -2636,18 +2638,21 @@ public abstract class Window {
      * Called when the activity changes from fullscreen mode to multi-window mode and visa-versa.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract void onMultiWindowModeChanged();
 
     /**
      * Called when the activity changes to/from picture-in-picture mode.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract void onPictureInPictureModeChanged(boolean isInPictureInPictureMode);
 
     /**
      * Called when the activity just relaunched.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract void reportActivityRelaunched();
 
     /**
diff --git a/core/java/android/webkit/CookieManager.java b/core/java/android/webkit/CookieManager.java
index f62a28ec0d074..023d9ff28f41b 100644
--- a/core/java/android/webkit/CookieManager.java
+++ b/core/java/android/webkit/CookieManager.java
@@ -154,6 +154,7 @@ public abstract class CookieManager {
      *               HTTP request header
      * @hide Used by Browser and by WebViewProvider implementations.
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     public abstract String getCookie(String url, boolean privateBrowsing);
 
@@ -230,6 +231,7 @@ public abstract class CookieManager {
      * @param privateBrowsing whether to use the private browsing cookie jar
      * @hide Used by Browser and WebViewProvider implementations.
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     public abstract boolean hasCookies(boolean privateBrowsing);
 
@@ -264,6 +266,7 @@ public abstract class CookieManager {
      *
      * @hide Only for use by WebViewProvider implementations
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     protected abstract boolean allowFileSchemeCookiesImpl();
 
@@ -299,6 +302,7 @@ public abstract class CookieManager {
      *
      * @hide Only for use by WebViewProvider implementations
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     protected abstract void setAcceptFileSchemeCookiesImpl(boolean accept);
 }
diff --git a/core/java/android/webkit/WebHistoryItem.java b/core/java/android/webkit/WebHistoryItem.java
index b9e704285f841..2cb37b4401285 100644
--- a/core/java/android/webkit/WebHistoryItem.java
+++ b/core/java/android/webkit/WebHistoryItem.java
@@ -35,6 +35,7 @@ public abstract class WebHistoryItem implements Cloneable {
      * @deprecated This method is now obsolete.
      * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1}
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @Deprecated
     public abstract int getId();
diff --git a/core/java/android/webkit/WebIconDatabase.java b/core/java/android/webkit/WebIconDatabase.java
index 08956e0f1b785..b705658160376 100644
--- a/core/java/android/webkit/WebIconDatabase.java
+++ b/core/java/android/webkit/WebIconDatabase.java
@@ -75,6 +75,7 @@ public abstract class WebIconDatabase {
 
     /** {@hide}
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     public abstract void bulkRequestIconForPageUrl(ContentResolver cr, String where,
             IconListener listener);
diff --git a/core/java/android/webkit/WebSettings.java b/core/java/android/webkit/WebSettings.java
index 91b9390745ef7..9b753f1b2d44d 100644
--- a/core/java/android/webkit/WebSettings.java
+++ b/core/java/android/webkit/WebSettings.java
@@ -268,6 +268,7 @@ public abstract class WebSettings {
      * @deprecated This method is now obsolete.
      * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1}
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @Deprecated
     public abstract void setNavDump(boolean enabled);
@@ -280,6 +281,7 @@ public abstract class WebSettings {
      * @deprecated This method is now obsolete.
      * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1}
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @Deprecated
     public abstract boolean getNavDump();
@@ -457,6 +459,7 @@ public abstract class WebSettings {
      * @deprecated This method is now obsolete.
      * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1}
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @Deprecated
     public abstract  void setUseWebViewBackgroundForOverscrollBackground(boolean view);
@@ -469,6 +472,7 @@ public abstract class WebSettings {
      * @deprecated This method is now obsolete.
      * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1}
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @Deprecated
     public abstract  boolean getUseWebViewBackgroundForOverscrollBackground();
@@ -534,6 +538,7 @@ public abstract class WebSettings {
      * Developers should access this via {@link CookieManager#setShouldAcceptThirdPartyCookies}.
      * @hide Internal API.
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     public abstract void setAcceptThirdPartyCookies(boolean accept);
 
@@ -542,6 +547,7 @@ public abstract class WebSettings {
      * Developers should access this via {@link CookieManager#getShouldAcceptThirdPartyCookies}.
      * @hide Internal API
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     public abstract boolean getAcceptThirdPartyCookies();
 
@@ -669,6 +675,7 @@ public abstract class WebSettings {
      * @deprecated Please use {@link #setUserAgentString} instead.
      * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1}
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @Deprecated
     public abstract void setUserAgent(int ua);
@@ -687,6 +694,7 @@ public abstract class WebSettings {
      * @deprecated Please use {@link #getUserAgentString} instead.
      * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1}
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @Deprecated
     public abstract int getUserAgent();
@@ -1050,6 +1058,7 @@ public abstract class WebSettings {
      *             {@link #setPluginState}
      * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR2}
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @Deprecated
     public abstract void setPluginsEnabled(boolean flag);
@@ -1259,6 +1268,7 @@ public abstract class WebSettings {
      * @deprecated This method has been replaced by {@link #getPluginState}
      * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR2}
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     @Deprecated
     public abstract boolean getPluginsEnabled();
@@ -1445,6 +1455,7 @@ public abstract class WebSettings {
      * WebView.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     public abstract void setVideoOverlayForEmbeddedEncryptedVideoEnabled(boolean flag);
 
@@ -1455,6 +1466,7 @@ public abstract class WebSettings {
      * @see #setVideoOverlayForEmbeddedEncryptedVideoEnabled
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @SystemApi
     public abstract boolean getVideoOverlayForEmbeddedEncryptedVideoEnabled();
 
diff --git a/core/java/android/widget/AbsListView.java b/core/java/android/widget/AbsListView.java
index 88c0809613ee7..e740cc2b1f7a1 100644
--- a/core/java/android/widget/AbsListView.java
+++ b/core/java/android/widget/AbsListView.java
@@ -5348,6 +5348,7 @@ public abstract class AbsListView extends AdapterView<ListAdapter> implements Te
      *
      * @param down true if the scroll is going down, false if it is going up
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     abstract void fillGap(boolean down);
 
     void hideSelector() {
@@ -5385,6 +5386,7 @@ public abstract class AbsListView extends AdapterView<ListAdapter> implements Te
      * @param y Where the user touched
      * @return The position of the first (or only) item in the row containing y
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     abstract int findMotionRow(int y);
 
@@ -5432,6 +5434,7 @@ public abstract class AbsListView extends AdapterView<ListAdapter> implements Te
      *
      * @param position the position of the new selection
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     abstract void setSelectionInt(int position);
 
     /**
diff --git a/core/java/android/widget/AbsSpinner.java b/core/java/android/widget/AbsSpinner.java
index daf6914ff030d..76e97ad7a0f6b 100644
--- a/core/java/android/widget/AbsSpinner.java
+++ b/core/java/android/widget/AbsSpinner.java
@@ -310,6 +310,7 @@ public abstract class AbsSpinner extends AdapterView<SpinnerAdapter> {
         }
     }
 
+    @SuppressWarnings("HiddenAbstractMethod")
     abstract void layout(int delta, boolean animate);
 
     @Override
diff --git a/media/java/android/media/Image.java b/media/java/android/media/Image.java
index 610bffe13eae2..0ef4b94f6e372 100644
--- a/media/java/android/media/Image.java
+++ b/media/java/android/media/Image.java
@@ -200,6 +200,7 @@ public abstract class Image implements AutoCloseable {
      * @return The window transformation that needs to be applied for this frame.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract int getTransform();
 
     /**
@@ -207,6 +208,7 @@ public abstract class Image implements AutoCloseable {
      * @return The scaling mode that needs to be applied for this frame.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract int getScalingMode();
 
     /**
diff --git a/telecomm/java/android/telecom/InCallService.java b/telecomm/java/android/telecom/InCallService.java
index 982e5f30e28c9..07de61759d592 100644
--- a/telecomm/java/android/telecom/InCallService.java
+++ b/telecomm/java/android/telecom/InCallService.java
@@ -680,6 +680,7 @@ public abstract class InCallService extends Service {
     public static abstract class VideoCall {
 
         /** @hide */
+        @SuppressWarnings("HiddenAbstractMethod")
         public abstract void destroy();
 
         /**
diff --git a/telephony/java/android/telephony/CellLocation.java b/telephony/java/android/telephony/CellLocation.java
index 8f5ec365e65c8..e595002d175be 100644
--- a/telephony/java/android/telephony/CellLocation.java
+++ b/telephony/java/android/telephony/CellLocation.java
@@ -98,12 +98,14 @@ public abstract class CellLocation {
     /**
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract void fillInNotifierBundle(Bundle bundle);
 
     /**
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     @UnsupportedAppUsage
     public abstract boolean isEmpty();
 
@@ -111,6 +113,7 @@ public abstract class CellLocation {
      * Invalidate this object.  The location area code and the cell id are set to -1.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract void setStateInvalid();
 
     /**
diff --git a/telephony/java/android/telephony/ims/feature/ImsFeature.java b/telephony/java/android/telephony/ims/feature/ImsFeature.java
index b0a7b62c88ab9..96ca0225040f0 100644
--- a/telephony/java/android/telephony/ims/feature/ImsFeature.java
+++ b/telephony/java/android/telephony/ims/feature/ImsFeature.java
@@ -509,6 +509,7 @@ public abstract class ImsFeature {
      * @return true if the capability is enabled, false otherwise.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     public abstract boolean queryCapabilityConfiguration(int capability, int radioTech);
 
     /**
@@ -547,5 +548,6 @@ public abstract class ImsFeature {
      * @return Binder instance that the framework will use to communicate with this feature.
      * @hide
      */
+    @SuppressWarnings("HiddenAbstractMethod")
     protected abstract IInterface getBinder();
 }