Unit tests for JAXWS WebServices (except WSDL and SOAP transport part)

The WS are hard to test, because in order to run them it is needed a Web Server running.
There is a class written (WSClient) which can be run manually as standalone Java application. It shows the correctness of the deployed WS. But for automatic unit testing, it could be good to have simple tests which call directly the WS' methods, and not through SOAP WS protocol. That would prove the correctness of the business logic included in the WS.