public Builder clear() {
        super.clear();
        stopTimer_ = "";
        bitField0_ = (bitField0_ & ~0x00000001);
        if (startTimerBuilder_ == null) {
          startTimer_ = JOutPiqi.timer.getDefaultInstance();
        } else {
          startTimerBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000002);
        if (kickPlayerBuilder_ == null) {
          kickPlayer_ = JOutPiqi.userid_list.getDefaultInstance();
        } else {
          kickPlayerBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000004);
        if (messageBuilder_ == null) {
          message_ = JOutPiqi.message.getDefaultInstance();
        } else {
          messageBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000008);
        return this;
      }