doesn't compile with spring master.
looks like hoijui added a parameter to the ConfigureJavaSkirmishAI macro.
https://github.com/spring/spring/blob/master/AI/Interfaces/Java/CMakeLists.txt#L25
change this to
ConfigureJavaSkirmishAI(JavaOO)
and it seems to work (but fails at some point later...)
at best you create a pureint branch for that, as spring master changed a lot of things.