public void add(boolean priority,CreateMarkerTask c){
  lock.lock();
  sendEmptyMessage(BLANK);
  if (priority) {
    mOnScreenCreateMarkerTasks.add(c);
  }
 else {
    mCreateMarkerTasks.add(c);
  }
  lock.unlock();
}

public void add ( boolean priority , CreateMarkerTask c ) { lock . lock ( ) ; sendEmptyMessage ( BLANK ) ; if ( priority ) { mOnScreenCreateMarkerTasks . add ( c ) ; } else { mCreateMarkerTasks . add ( c ) ; } lock . unlock ( ) ; }
creates markers for a cluster some time in the future .
