What is the return value of getEntityManagerFactoryFromJndiOrValueBinding() called from line 77. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4081319#4081319 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4081319