Hi Tim, These are my code. However, I can't reproduce the error. It seems my computer was tired, and couldn't access the queue :o Yesterday and today, my code worked well. So I think the problem lies on my side not on JBM. Thank you very much for your attention. Best Regards, Hendra | ic = new InitialContext(); | cf = (ConnectionFactory)ic.lookup("/ConnectionFactory"); | conn = cf.createConnection(); | Queue queue = (Queue)ic.lookup("/queue/A"); | Session sess = conn.createSession(false, Session.AUTO_ACKNOWLEDGE); | MessageProducer prod = sess.createProducer(queue); | Message mess = sess.createObjectMessage("Test Message"); | | prod.send(mess); | | MBeanServerConnection mbeanServerConnection = (MBeanServerConnection)ic.lookup("jmx/invoker/RMIAdaptor"); | ObjectName objName = new ObjectName("jboss.messaging.destination:service=Queue,name=A"); | List list = (List)mbeanServerConnection.invoke(objName, "listAllMessages", new Object[]{}, new String[]{}); | | for(java.util.Iterator iterator=list.iterator(); iterator.hasNext();) | { | Message msgInsideQueue = (Message)iterator.next(); | System.out.println("List message"); | } | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4075162#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...