code: protected HttpResponse fetchMetadata(final String metadataLocation, final CriteriaSet criteriaSet) {
          LOGGER.debug("Fetching metadata from [{}]", metadataLocation);
          return HttpUtils.executeGet(metadataLocation, new LinkedHashMap<>());
      }
docs: Fetch metadata http response.
  
  @param metadataLocation the metadata location
  @param criteriaSet      the criteria set
  @return the http response