public synchronized void start() {
        if( isRunning ) {
            return;
        }
        server.start();
        isRunning = true;
    }
A simple test chat server.  When SM implements a set
 of standard chat classes this can become a lot simpler.

 @version   $Revision$
 @author    Paul Speed
jme3-examples/src/main/java/jme3test/network/TestChatServer.java