There is an ant/eclipse project to reproduce the problem right here: http://page.mi.fu-berlin.de/schmidtm/jbossws-jaxb/TestJBossWS.zip The download is quite big as it contains all those library dependencies. Run ant to get a WAR that can be used for deployment on JBoss 4.2.2GA. Also tried with the current jbossws-3.0.1-native-2.0.4.GA, but seems to be not fixed yet. The included WSDL was generated using wsprovide, now doing wsconsume to generate the service interface which is then implemented by one simple class. I might also upload the original sources used to generate the WSDL if necessary. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4147501#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...