which DB do you use? the default hsqldn with jboss server or other DB? have a check of persistence.xml see if the configuration is right. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3958733#3958733 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3958733