Hi Thanks for the response. Please look at 5.1 , second last paragraph. It says "Both container-managed entity managers and application-managed entity managers and their persistence contexts are required to be supported in Java EE web containers and EJB containers. " Would not that imply that the EntityManagerFactory factory = Persistence .createEntityManagerFactory("titan"); should work as well? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4068613#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...