backGroundThreads.add(thread);
      private static ReadHandler[] create(int workerThreads, ConnectionTableNIO ct, ThreadGroup tg)      {         ReadHandler[] handlers = new ReadHandler[workerThreads];         for (int looper = 0; looper < workerThreads; looper++)         {            handlers[looper] = new ReadHandler(ct);            Thread thread = new Thread(tg, handlers[looper], "nioReadHandlerThread");            thread.setDaemon(true);            thread.start();         }         return handlers;      }