I just found an old tools.jar sitting in my classpath; removing that has resolved the issue. Thanks for your help along the way. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4042617#4042617 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4042617