I am using mysql and I am using the mysql-persistence-service.xml file from the 1.2/examples/config directory. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3997576#3997576 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3997576