You have some problems with the installation, as jbossws-native classes are being used (org.jboss.ws.core.soap.SOAPMessageImpl). If you want to use jbossws-cxf, please get rid of jbossws libraries in your classpath. For instance, check you don't have jbossws-*.jar libs in the endorsed dir of your application server. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4234696#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...