public Builder clearExecutionEndingRequest() {
        if (executionEndingRequestBuilder_ == null) {
          executionEndingRequest_ = main.Messages.ExecutionEndingRequest.getDefaultInstance();
          onChanged();
        } else {
          executionEndingRequestBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000200);
        return this;
      }