Have you configured your <jta-data-source/> name of your persistence.xml in the jboss-beans.xml? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4054852#4054852 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4054852