Looks like a classloading problem to me. Do you have you jboss-app.xml files? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3986882#3986882 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3986882