That's a classloading problem, of your classes. Check your ear structure - post it if you're stuck. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3995568#3995568 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3995568