I had a very similar issue. I thought I'd post the cause here in case it helps anyone else when it turns up on a search. The "does not support sequences" error went away once I'd removed the @Entity from another class that wasn't explicitly included in persistence.xml It appears it was simply searching the classpath and picking it up. The other class didn't have a matching DB table - which seemed to be what was causing the above, rather misleading error. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4208915#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...