if (!response.wasSuccessful()) {
                URI effectiveUri = response.getEffectiveUri();
                throw new HttpErrorStatusCodeException(response.getMethod(), effectiveUri.toString(), response.getStatusLine().getStatusCode(), response.getStatusLine().getReasonPhrase());
            }
        }
    }

          builder.header(header,value);
        }
      }
      try {
        Response r = builder.get();

        int statusCode = r.getStatusInfo().getStatusCode();
        if (statusCode == Response.Status.OK.getStatusCode()) {
          try (StringReader stringReader = new StringReader(r.readEntity(String.class));
               JsonReader jsonReader = Json.createReader(stringReader)) {

        try (CloseableHttpResponse response = httpClient.execute(httpPost)) {
            if (response.getStatusLine().getStatusCode() != Constants.OK_STATUS_CODE) {
                logger.error("Failed to access {}, code: {}.", url, response.getStatusLine().getStatusCode());
                return null;
            }

            data.setContent(EntityUtils.toString(response.getEntity(), Charsets.UTF_8));

                httpRequest = new HttpGet(buf.toString());
            }

            executor.accept(httpRequest, (response, entity) -> {
                final int httpStatusCode = response.getStatusLine().getStatusCode();
                if (httpStatusCode < 400 || httpStatusCode == 401) {
                    parseTokenPage(tokenPattern, responseParams, entity);
                } else {
                    String content;

        gcsStorageClient.objects(*_) >> Mock(Storage.Objects) {
            get(*_) >> Mock(Storage.Objects.Get) {
                execute() >> { throw Mock(GoogleJsonResponseException) {
                    getStatusCode() >> 404
                } }
            }
        }

        when:
        gcsClient.getResource(uri)
        then:
        def ex = thrown(ResourceException)

            // If we throw, an attempt to publish will fail altogether even if we use ResourceExceptions#getMissing(uri).
            if (e.getStatusCode() == 404) {
                return null;
            }
            throw ResourceExceptions.getFailed(uri, e);
        } catch (IOException e) {
            throw ResourceExceptions.getFailed(uri, e);
        }

            });
        } catch (final WebApiException e) {
            logger.debug("Failed to access to Web API.", e);
            response.sendError(e.getStatusCode(), e.getMessage());
        }
    }

    protected void processRequest(final HttpServletRequest request, final HttpServletResponse response, final String path) {

        } catch (final WebApiException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to process a popularWord request.", e);
            }
            writeJsonResponse(e.getStatusCode(), e);
        } catch (final Exception e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to process a popularWord request.", e);
            }

        throw new HttpErrorStatusCodeException(response.getMethod(), effectiveUri.toString(), response.getStatusLine().getStatusCode(), response.getStatusLine().getReasonPhrase());
    }

    private synchronized CloseableHttpClient getClient() {
        if (client == null) {
            HttpClientBuilder builder = HttpClientBuilder.create();

            // get a content
            final HttpResponse response = executeHttpClient(httpGet);
            httpEntity = response.getEntity();

            final int httpStatusCode = response.getStatusLine().getStatusCode();
            if (httpStatusCode == 200) {

                // check file size
                final Header contentLengthHeader = response.getFirstHeader("Content-Length");