I get the same error, but i can mapped a table Persons whit the same project Can i help me please View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4005930#4005930 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4005930