It's a hibernate thing, not seam-related. Check out http://www.hibernate.org/381.html View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4041682#4041682 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4041682