You have forgotten to copy jgroups.jar and jboss-cache.jar to server/default/lib. Andreas View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3984441#3984441 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3984441