Looks like there is an old version of log4j.jar around somewhere - TRACE level had been included since log4j version 1.2.12. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4173565#4173565 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4173565