The session replication does not appear to be a factor. I can recreate the error with session replication turned off. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3985179#3985179 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3985179