assertNotNull(service);
JAXBContext jc = JAXBContext.newInstance("org.apache.hello_world_soap_http.types");
Dispatch<Object> disp = service.createDispatch(portName, jc, Service.Mode.PAYLOAD);
SayHi s = new SayHi();
Object response = disp.invoke(s);
assertNotNull(response);
assertTrue(response instanceof SayHiResponse);
}