private void initFields() {
      init_ = JInPiqi.init.getDefaultInstance();
      handleUserJoin_ = JInPiqi.handle_user_join.getDefaultInstance();
      handleUserLeave_ = JInPiqi.handle_user_leave.getDefaultInstance();
      handleAction_ = JInPiqi.handle_action.getDefaultInstance();
      handleTimer_ = JInPiqi.handle_timer.getDefaultInstance();
      handleTimerComplete_ = JInPiqi.handle_timer_complete.getDefaultInstance();
      system_ = JSystemPiqi.system_response.getDefaultInstance();
    }