Don't use a cache loader with the 4.2.1 distributed session manager. The session management code was not designed for that. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4087937#4087937 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4087937