activationCount = new SynchronizedInt(0);
   public MessageCallbackHandler(boolean isCC, int ackMode, Executor executor, Executor pooledExecutor)   {      buffer = new SynchronousChannel();            isConnectionConsumer = isCC;             receiverLock = new Object();            this.ackMode = ackMode;            this.onMessageExecutor = executor;            this.pooledExecutor = pooledExecutor;   }