Looks like it has not deployed the persistence unit named "mmogwidgets". Is persistence.xml deployed correctly? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4061422#4061422 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4061422