processTasks (Collections.EMPTY_LIST);
processTasks (new ArrayList());
  protected void execute() {    super.execute ();        // processTasks is ordinarily only called when tasks have accumulated    // in the buffer and the buffer dispatch condition has been met.    //     // This ensures that if there are delayed tasks, they are re-examined,    // whether there's something in the buffer or not.    //    // Fix for bug #13455    if (!delayedTasks.isEmpty ()) {      processTasks (Collections.EMPTY_LIST);    }  }