Hi all, Although the lock="UPGRADE" without the session.flush() solves the problem in 3.3.0.GA, the same solution in version 3.2.3 does not work. For our company this is not a problem, we can switch to 3.3.0.GA easily since we do not run production right now. I thought this was valuable information to share. Jan View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4197990#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...