I think JDK1.5 is not ready for primetime. Try JRockit. It fixed my "PermGen space" classloader issue. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3982048#3982048 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3982048