MTOMFeature feature = new MTOMFeature(true);
Dispatch<String> dispatch = service.createDispatch(portQName, String.class, Service.Mode.MESSAGE, feature);
assertNotNull(dispatch);
String result = dispatch.invoke(echoBodyContent_MESSAGE);
TestClientInvocationController testController = getInvocationController();
InvocationContext ic = testController.getInvocationContext();
MessageContext requestMC = ic.getRequestMessageContext();
OperationDescription opDesc = requestMC.getOperationDescription();
assertNotNull("OpDesc from request MC should not be null", opDesc);
// Make sure we get the correct Operation Description