public void addServices( ClientService... services ) {
        for( ClientService s : services ) {
            super.addService(s);
        }
    }
Adds the specified services and initializes them.  If the service manager
 has already been started then the services will also be started.
 This is a convenience method that delegates to addService(), thus each
 service will be initialized (and possibly started) in sequence rather
 than doing them all at the end.
jme3-networking/src/main/java/com/jme3/network/service/ClientServiceManager.java