code: public Observable<ServiceResponse<Void>> rotateDiskEncryptionKeyWithServiceResponseAsync(String resourceGroupName, String clusterName, ClusterDiskEncryptionParameters parameters) {
          if (this.client.subscriptionId() == null) {
              throw new IllegalArgumentException("Parameter this.client.subscriptionId() is required and cannot be null.");
          }
          if (resourceGroupName == null) {
              throw new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null.");
          }
          if (clusterName == null) {
              throw new IllegalArgumentException("Parameter clusterName is required and cannot be null.");
          }
          if (this.client.apiVersion() == null) {
              throw new IllegalArgumentException("Parameter this.client.apiVersion() is required and cannot be null.");
          }
          if (parameters == null) {
              throw new IllegalArgumentException("Parameter parameters is required and cannot be null.");
          }
          Validator.validate(parameters);
          Observable<Response<ResponseBody>> observable = service.rotateDiskEncryptionKey(this.client.subscriptionId(), resourceGroupName, clusterName, this.client.apiVersion(), parameters, this.client.acceptLanguage(), this.client.userAgent());
          return client.getAzureClient().getPostOrDeleteResultAsync(observable, new TypeToken<Void>() { }.getType());
      }
docs: Rotate disk encryption key of the specified HDInsight cluster.
  
  @param resourceGroupName The name of the resource group.
  @param clusterName The name of the cluster.
  @param parameters The parameters for the disk encryption operation.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable for the request