code: public ServiceFuture<List<SourceControlInner>> listSourceControlsAsync(final ListOperationCallback<SourceControlInner> serviceCallback) {
          return AzureServiceFuture.fromPageResponse(
              listSourceControlsSinglePageAsync(),
              new Func1<String, Observable<ServiceResponse<Page<SourceControlInner>>>>() {
                  @Override
                  public Observable<ServiceResponse<Page<SourceControlInner>>> call(String nextPageLink) {
                      return listSourceControlsNextSinglePageAsync(nextPageLink);
                  }
              },
              serviceCallback);
      }
docs: Gets the source controls available for Azure websites.
  Gets the source controls available for Azure websites.
  
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object