Hmm, I've never used Netbeans, so I have no idea what it does special. If org.jboss.aop.advice.org.jboss.jms.client.container.SessionAspect_z_handleRedeliver_2030193044 is part of the messaging client jar, try removing it to see if that makes any difference. This class and similarly named classes: | org.jboss.aop.advice + <FullClassName>_ + <methodName>_ + <methodHash> | are generated as an aop interceptors per advice method. Maybe this is getting done more than once for some reason in your environment? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4264538#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...