Hello.
I’m going to make a multiplayer game with physics. Is there any library which can provide synchronization of objects and other stuff related to multiplayer physics? 
Look at jme3test.network.sync in JME3 Examples for synchronization 
Yeah… but I’m talking about JME2, not JME3 
If you are using JME2, what you want to look for is JGN
here is their forum
http://forum.captiveimagination.com/index.php?board=4.0
Yeah! It’s exactly what I need!
But I can’t even get jgn to work 
This link is a bit outdated https://wiki.jmonkeyengine.org/legacy/doku.php/eclipse_guide_to_jgn
http://svn.javagn.org/ is not working, so I used the link on their forums and successfully got JGN from svn, nice!
But I cannot run any test in JGN, it says “The selection cannot be launched, and there are no recent launches”
What can I do ?
(I’m using eclipse)