Integrate PHP based SOAP RPS game server in another language, JAVA desktop GUI

Now that we have a Web Service ready to consume (even though it is SOAP based), it should be pretty easy to extend to Java, which also means it should be possible with a little bit of effort to create a Desktop GUI.
For more on creating a Java-based SOAP server to have an all-Java version of this solution, see:
https://netbeans.org/kb/docs/websvc/jax-ws.html
See the other parts here:
- Part 1: Creating a basic Rock Paper Scissors game in PHP
- Part 2: Moving a command-line PHP Rock Paper Scissors game to the Browser
- Part 3: Exposing your PHP Rock Paper Scissors game via SOAP Web Services
- Part 4: Integrate PHP based SOAP RPS game server in another language, JAVA desktop GUI <– you are here