You have all of the required Jars in your EAR. Do you have all of the proper manifest.mf classpath entries? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3969459#3969459 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3969459