I tried to implement MessageListener, but it dosen't work, but when I use MessageListner, it doesn't work. So what should I do that MessageListener starts working, I'm using jboss 4.02.

recv.receive(); // This works

recv.setMessageListener(new ExListener()); // This doesn't work

    public static class ExListener 
    implements MessageListener
    {
        public void onMessage(Message msg)
        {
            TextMessage tm = (TextMessage) msg;
            try {
                System.out.println("onMessage, recv text="+tm.getText());
            } catch(Throwable t) {
                t.printStackTrace();
            }
        }
    }