Program: 821
Project: 821
Buggy source:
/** 
 * Request a sync with a generic   {@link android.content.SyncRequest} object. This will beeither: periodic OR one-off sync. and anonymous OR provider sync. Depending on the request, we enqueue to suit in the SyncManager.
 * @param request
 */
@Override public void sync(SyncRequest request){
  Bundle extras=request.getBundle();
  ContentResolver.validateSyncExtrasBundle(extras);
  long flextime=request.getSyncFlexTime();
  long runAtTime=request.getSyncRunTime();
  int userId=UserHandle.getCallingUserId();
  int uId=Binder.getCallingUid();
  long identityToken=clearCallingIdentity();
  try {
    SyncManager syncManager=getSyncManager();
    if (syncManager != null) {
      if (request.hasAuthority()) {
        final Account account=request.getAccount();
        final String provider=request.getProvider();
        if (request.isPeriodic()) {
          mContext.enforceCallingOrSelfPermission(Manifest.permission.WRITE_SYNC_SETTINGS,"String_Node_Str");
          if (runAtTime < 60) {
            Slog.w(TAG,"String_Node_Str" + runAtTime + "String_Node_Str");
            runAtTime=60;
          }
          PeriodicSync syncToAdd=new PeriodicSync(account,provider,extras,runAtTime,flextime);
          getSyncManager().getSyncStorageEngine().addPeriodicSync(syncToAdd,userId);
        }
 else {
          long beforeRuntimeMillis=(flextime) * 1000;
          long runtimeMillis=runAtTime * 1000;
          syncManager.scheduleSync(account,userId,uId,provider,extras,beforeRuntimeMillis,runtimeMillis,false);
        }
      }
 else {
        Log.w(TAG,"String_Node_Str");
      }
    }
  }
  finally {
    restoreCallingIdentity(identityToken);
  }
}

Fixed version (ground truth):
/** 
 * Request a sync with a generic   {@link android.content.SyncRequest} object. This will beeither: periodic OR one-off sync. and anonymous OR provider sync. Depending on the request, we enqueue to suit in the SyncManager.
 * @param request The request object. Validation of this object is done by its builder.
 */
@Override public void sync(SyncRequest request){
  Bundle extras=request.getBundle();
  long flextime=request.getSyncFlexTime();
  long runAtTime=request.getSyncRunTime();
  int userId=UserHandle.getCallingUserId();
  int uId=Binder.getCallingUid();
  long identityToken=clearCallingIdentity();
  try {
    SyncManager syncManager=getSyncManager();
    if (syncManager != null) {
      if (request.hasAuthority()) {
        final Account account=request.getAccount();
        final String provider=request.getProvider();
        if (request.isPeriodic()) {
          mContext.enforceCallingOrSelfPermission(Manifest.permission.WRITE_SYNC_SETTINGS,"String_Node_Str");
          if (runAtTime < 60) {
            Slog.w(TAG,"String_Node_Str" + runAtTime + "String_Node_Str");
            runAtTime=60;
          }
          PeriodicSync syncToAdd=new PeriodicSync(account,provider,extras,runAtTime,flextime);
          getSyncManager().getSyncStorageEngine().addPeriodicSync(syncToAdd,userId);
        }
 else {
          long beforeRuntimeMillis=(flextime) * 1000;
          long runtimeMillis=runAtTime * 1000;
          syncManager.scheduleSync(account,userId,uId,provider,extras,beforeRuntimeMillis,runtimeMillis,false);
        }
      }
 else {
        Log.w(TAG,"String_Node_Str");
      }
    }
  }
  finally {
    restoreCallingIdentity(identityToken);
  }
}