The same applies to JBossWS 2.0.0 GA too. You have to use JDK 1.5 or above View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4087324#4087324 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4087324