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