public Builder setOrderTarget(org.bwapi.proxy.messages.GameMessages.UnitId value) {
        if (orderTargetBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          orderTarget_ = value;
          onChanged();
        } else {
          orderTargetBuilder_.setMessage(value);
        }
        bitField1_ |= 0x00000008;
        return this;
      }