Program: 192308
Project: 192308
Buggy source:
/** 
 * Updates an Activity's Resources object with overrideConfig. The Resources object that was previously returned by  {@link #getResources(IBinder,String,String[],String[],String[],int,Configuration,CompatibilityInfo,ClassLoader)} isstill valid and will have the updated configuration.
 * @param activityToken The Activity token.
 * @param overrideConfig The configuration override to update.
 */
public void updateResourcesForActivity(@NonNull IBinder activityToken,@Nullable Configuration overrideConfig){
synchronized (this) {
    final ActivityResources activityResources=getOrCreateActivityResourcesStructLocked(activityToken);
    if (Objects.equals(activityResources.overrideConfig,overrideConfig)) {
      return;
    }
    final Configuration oldConfig=new Configuration(activityResources.overrideConfig);
    if (overrideConfig != null) {
      activityResources.overrideConfig.setTo(overrideConfig);
    }
 else {
      activityResources.overrideConfig.setToDefaults();
    }
    final boolean activityHasOverrideConfig=!activityResources.overrideConfig.equals(Configuration.EMPTY);
    final int refCount=activityResources.activityResources.size();
    for (int i=0; i < refCount; i++) {
      WeakReference<Resources> weakResRef=activityResources.activityResources.get(i);
      Resources resources=weakResRef.get();
      if (resources == null) {
        continue;
      }
      final ResourcesKey oldKey=findKeyForResourceImplLocked(resources.getImpl());
      if (oldKey == null) {
        Slog.e(TAG,"String_Node_Str" + resources.getImpl());
        continue;
      }
      final Configuration rebasedOverrideConfig=new Configuration();
      if (overrideConfig != null) {
        rebasedOverrideConfig.setTo(overrideConfig);
      }
      if (activityHasOverrideConfig && oldKey.hasOverrideConfiguration()) {
        Configuration overrideOverrideConfig=Configuration.generateDelta(oldConfig,oldKey.mOverrideConfiguration);
        rebasedOverrideConfig.updateFrom(overrideOverrideConfig);
      }
      final ResourcesKey newKey=new ResourcesKey(oldKey.mResDir,oldKey.mSplitResDirs,oldKey.mOverlayDirs,oldKey.mLibDirs,oldKey.mDisplayId,rebasedOverrideConfig,oldKey.mCompatInfo);
      ResourcesImpl resourcesImpl=findResourcesImplForKeyLocked(newKey);
      if (resourcesImpl == null) {
        resourcesImpl=createResourcesImpl(newKey);
      }
      if (resourcesImpl != resources.getImpl()) {
        resources.setImpl(resourcesImpl);
      }
    }
  }
}

Fixed version (ground truth):
/** 
 * Updates an Activity's Resources object with overrideConfig. The Resources object that was previously returned by  {@link #getResources(IBinder,String,String[],String[],String[],int,Configuration,CompatibilityInfo,ClassLoader)} isstill valid and will have the updated configuration.
 * @param activityToken The Activity token.
 * @param overrideConfig The configuration override to update.
 */
public void updateResourcesForActivity(@NonNull IBinder activityToken,@Nullable Configuration overrideConfig){
synchronized (this) {
    final ActivityResources activityResources=getOrCreateActivityResourcesStructLocked(activityToken);
    if (Objects.equals(activityResources.overrideConfig,overrideConfig)) {
      return;
    }
    final Configuration oldConfig=new Configuration(activityResources.overrideConfig);
    if (overrideConfig != null) {
      activityResources.overrideConfig.setTo(overrideConfig);
    }
 else {
      activityResources.overrideConfig.setToDefaults();
    }
    if (DEBUG) {
      Throwable here=new Throwable();
      here.fillInStackTrace();
      Slog.d(TAG,"String_Node_Str" + activityToken + "String_Node_Str"+ Configuration.resourceQualifierString(oldConfig)+ "String_Node_Str"+ Configuration.resourceQualifierString(activityResources.overrideConfig),here);
    }
    final boolean activityHasOverrideConfig=!activityResources.overrideConfig.equals(Configuration.EMPTY);
    final int refCount=activityResources.activityResources.size();
    for (int i=0; i < refCount; i++) {
      WeakReference<Resources> weakResRef=activityResources.activityResources.get(i);
      Resources resources=weakResRef.get();
      if (resources == null) {
        continue;
      }
      final ResourcesKey oldKey=findKeyForResourceImplLocked(resources.getImpl());
      if (oldKey == null) {
        Slog.e(TAG,"String_Node_Str" + resources.getImpl());
        continue;
      }
      final Configuration rebasedOverrideConfig=new Configuration();
      if (overrideConfig != null) {
        rebasedOverrideConfig.setTo(overrideConfig);
      }
      if (activityHasOverrideConfig && oldKey.hasOverrideConfiguration()) {
        Configuration overrideOverrideConfig=Configuration.generateDelta(oldConfig,oldKey.mOverrideConfiguration);
        rebasedOverrideConfig.updateFrom(overrideOverrideConfig);
      }
      final ResourcesKey newKey=new ResourcesKey(oldKey.mResDir,oldKey.mSplitResDirs,oldKey.mOverlayDirs,oldKey.mLibDirs,oldKey.mDisplayId,rebasedOverrideConfig,oldKey.mCompatInfo);
      if (DEBUG) {
        Slog.d(TAG,"String_Node_Str" + resources + "String_Node_Str"+ oldKey+ "String_Node_Str"+ newKey);
      }
      ResourcesImpl resourcesImpl=findResourcesImplForKeyLocked(newKey);
      if (resourcesImpl == null) {
        resourcesImpl=createResourcesImpl(newKey);
        mResourceImpls.put(newKey,new WeakReference<>(resourcesImpl));
      }
      if (resourcesImpl != resources.getImpl()) {
        resources.setImpl(resourcesImpl);
      }
    }
  }
}