* see <a href="#param">common parameters</a>
*/
public <T> T createPortProxy( WSService service, WSBinding binding, SEIModel model,
Class<T> portInterface, Tube next, @Nullable WSEndpointReference epr ) {
SEIStub ps = new SEIStub((WSServiceDelegate)service,(BindingImpl)binding, (SOAPSEIModel)model, next, epr);
return portInterface.cast(
Proxy.newProxyInstance( portInterface.getClassLoader(),
new Class[]{portInterface, WSBindingProvider.class}, ps ));
}