code: public Observable<ServiceResponse<ApplicationGatewaySslPredefinedPolicyInner>> getSslPredefinedPolicyWithServiceResponseAsync(String predefinedPolicyName) {
          if (this.client.subscriptionId() == null) {
              throw new IllegalArgumentException("Parameter this.client.subscriptionId() is required and cannot be null.");
          }
          if (predefinedPolicyName == null) {
              throw new IllegalArgumentException("Parameter predefinedPolicyName is required and cannot be null.");
          }
          final String apiVersion = "2018-07-01";
          return service.getSslPredefinedPolicy(this.client.subscriptionId(), predefinedPolicyName, apiVersion, this.client.acceptLanguage(), this.client.userAgent())
              .flatMap(new Func1<Response<ResponseBody>, Observable<ServiceResponse<ApplicationGatewaySslPredefinedPolicyInner>>>() {
                  @Override
                  public Observable<ServiceResponse<ApplicationGatewaySslPredefinedPolicyInner>> call(Response<ResponseBody> response) {
                      try {
                          ServiceResponse<ApplicationGatewaySslPredefinedPolicyInner> clientResponse = getSslPredefinedPolicyDelegate(response);
                          return Observable.just(clientResponse);
                      } catch (Throwable t) {
                          return Observable.error(t);
                      }
                  }
              });
      }
docs: Gets Ssl predefined policy with the specified policy name.
  
  @param predefinedPolicyName Name of Ssl predefined policy.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the ApplicationGatewaySslPredefinedPolicyInner object