We are working towards eliminate needs of scoping for JBossMessaging. I believe if you upgrade jboss-remoting.jar by this one: http://repository.jboss.com/jboss/remoting/2.2.0.SP2/lib/jboss-remoting.jar If you synchronize all your jar versions with the ones on jboss-messaging.sar I think you wouldn't have problems any more. Don't use jboss-all.client.jar though as it will include those old jars on it. (that's another thing we will fix soon). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4040760#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...