Answer from the Hibernate Team: http://forums.hibernate.org/viewtopic.php?t=982687 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4119604#4119604 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4119604