Hello, I had the exact same problem and got as far as fixing the StubExt issue, but now I am stuck at the "Unable to create WSRM sequence" exception. How did you fix that? My classpath seems to be correct. Here's the client: public void pingTest() { | System.err.println("java.class.path: " | + System.getProperty("java.class.path")); | System.err.println("java.endorsed.dirs: " | + System.getProperty("java.endorsed.dirs")); | | URL jaxwsThatIsUsed = javax.xml.ws.Service.class.getProtectionDomain() | .getCodeSource().getLocation(); | System.out.println("JAXWS that is used: " + jaxwsThatIsUsed); | | ssp.ping("test"); | } The output is: JAXWS that is used: file:/D:/Programs/jboss/as0/jboss-4.2.3.GA/client/jbossws-native-jaxws.jar | java.class.path: [lots of stuff...];D:\Programs\jboss\as0\jboss-4.2.3.GA\client\jbossws-native-core.jar;[...more stuff];D:\Programs\jboss\as0\jboss-4.2.3.GA\lib\endorsed\serializer.jar;D:\Programs\jboss\as0\jboss-4.2.3.GA\lib\endorsed\xalan.jar;D:\Programs\jboss\as0\jboss-4.2.3.GA\lib\endorsed\xercesImpl.jar | java.endorsed.dirs: D:\Programs\jboss\as0\jboss-4.2.3.GA\lib\endorsed What did I miss? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4169585#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...