code: public void doHttpPut(String url, HttpResponse result, Map<String, Object> headers, String contentType) {
          httpClient.put(url, result, headers, contentType);
      }
docs: Performs PUT to supplied url of result's request.
  @param url url to put to.
  @param result result containing request, its response will be filled.
  @param headers headers to add.
  @param contentType contentType for request.