Java control Windows Media Player with Java

I have seen some Java servers which can control WMP with an Android device or such. But how do you make a server that controls WMP? What do you need for it?

Windows Media Player supports UPnP for server discovering and DLNA for remote controlling.

Say if you want to create a client app (Android or whatsoever using Java) to remote control Windows Media Player:

• Use UPnP to discover available WMP server on network with zero configuration.

• Use DLNA to remote control available WMP server on network, for example, expose playlist, control volume and etc.

Java library implements UPnP/DLNA: Cling

Hope this make sense.