With connection.start() everything works fine. Connection con = cf.createConnection(); | con.start(); //new line | Session session = con.createSession(false, Session.AUTO_ACKNOWLEDGE); I had some problems when i added connection.stop() method to my code. So i removed stop() method call, and again everything works corectly. Best regards vitor_b View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4031179#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...