code: public Observable<ServiceResponse<Void>> reissueWithServiceResponseAsync(String resourceGroupName, String certificateOrderName, ReissueCertificateOrderRequest reissueCertificateOrderRequest) {
          if (resourceGroupName == null) {
              throw new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null.");
          }
          if (certificateOrderName == null) {
              throw new IllegalArgumentException("Parameter certificateOrderName is required and cannot be null.");
          }
          if (this.client.subscriptionId() == null) {
              throw new IllegalArgumentException("Parameter this.client.subscriptionId() is required and cannot be null.");
          }
          if (reissueCertificateOrderRequest == null) {
              throw new IllegalArgumentException("Parameter reissueCertificateOrderRequest is required and cannot be null.");
          }
          if (this.client.apiVersion() == null) {
              throw new IllegalArgumentException("Parameter this.client.apiVersion() is required and cannot be null.");
          }
          Validator.validate(reissueCertificateOrderRequest);
          return service.reissue(resourceGroupName, certificateOrderName, this.client.subscriptionId(), reissueCertificateOrderRequest, this.client.apiVersion(), this.client.acceptLanguage(), this.client.userAgent())
              .flatMap(new Func1<Response<ResponseBody>, Observable<ServiceResponse<Void>>>() {
                  @Override
                  public Observable<ServiceResponse<Void>> call(Response<ResponseBody> response) {
                      try {
                          ServiceResponse<Void> clientResponse = reissueDelegate(response);
                          return Observable.just(clientResponse);
                      } catch (Throwable t) {
                          return Observable.error(t);
                      }
                  }
              });
      }
docs: Reissue an existing certificate order.
  Reissue an existing certificate order.
  
  @param resourceGroupName Name of the resource group to which the resource belongs.
  @param certificateOrderName Name of the certificate order.
  @param reissueCertificateOrderRequest Parameters for the reissue.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceResponse} object if successful.