Hi all I found the bug. It is related to a bug in Messaging 1.0.1SP2, JBMESSAGING-682: The cause is version of jboss-remoting.jar in server/messaging/lib and server/messaging/deploy are different. The ant script that comes with JBoss Messaging does not overwrite jboss-remoting.jar in server/messaging/lib. After manually replacing the file, everything worked. Regards Alfred View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4011732#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...