Hi, i have found the persistence.xml generated by doing the code generation and selecting the seam skelet. <entity-manager> <persistence-unit name="entityManager"> org.hibernate.ejb.HibernatePersistence <jta-data-source>java:/DefaultDS</jta-data-source> </persistence-unit> </entity-manager> do i need to do change something in here? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3983732#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...