public ServerAlreadyActive(int _serverId) {
   super(ServerAlreadyActiveHelper.id());
   serverId = _serverId;
 } // ctor
 public ServerAlreadyActive(String $reason, int _serverId) {
   super(ServerAlreadyActiveHelper.id() + "  " + $reason);
   serverId = _serverId;
 } // ctor
 public ServerAlreadyActive() {
   super(ServerAlreadyActiveHelper.id());
 } // ctor