I've brought this up on the Hibernate forum: http://forum.hibernate.org/viewtopic.php?t=972301 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4029479#4029479 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4029479