with out being 100% sure ... did you did updates on the tables ? you had a working directory and changed the structure of your db ? Perhaps if you change you persistence xml if it is from "update" to "create-drop" to drop and recreate the database. perhaps that may synchronize the db. Bare in mind you will loss everything with this. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4164485#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...