Several stack config settings have been deprecated in 2.6, which is why JGroups is producing those warnings. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4123973#4123973 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4123973