public Builder setScenarioExecutionEndingRequest(main.Messages.ScenarioExecutionEndingRequest value) {
        if (scenarioExecutionEndingRequestBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          scenarioExecutionEndingRequest_ = value;
          onChanged();
        } else {
          scenarioExecutionEndingRequestBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000040;
        return this;
      }