"petemuir" wrote : No. This question is to do with hibernate not Seam so I would suggest asking on the Hibernate forums I encountered this problem using EJBs (3.0) while using Seam and found a solution. If you were using EJBs when you encountered it put your posting in the EJB forum and I will post the solution or contact me directly by e-mail. (Is an EJB mapping issue.) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3981564#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...