response = getClient().get(c -> c.prepareSearchScroll(sid).setScroll(new TimeValue(scrollTimeout)).execute());
                if (!scrollId.equals(response.getScrollId())) {
                    getClient().clearScroll(scrollId);
                }
                scrollId = response.getScrollId();
            }
        } finally {
            getClient().clearScroll(scrollId);
        }
    }

                    config.initializeClientFactory(() -> ComponentUtil.getComponent(CrawlerClientFactory.class));
            final CrawlerClient client = crawlerClientFactory.getClient(url);
            if (client == null) {
                throw new ThumbnailGenerationException("No CrawlerClient: " + configId + ", url: " + url);
            }
            String u = url;

    InetAddress server = InetAddresses.forString(serverStr);
    assertEquals(server, teredo.getServer());

    InetAddress client = InetAddresses.forString(clientStr);
    assertEquals(client, teredo.getClient());

    assertEquals(port, teredo.getPort());
    assertEquals(flags, teredo.getFlags());
  }

  public void testTeredoAddress_nullServer() {

        final CrawlerClientFactory crawlerClientFactory =
                config.initializeClientFactory(() -> ComponentUtil.getComponent(CrawlerClientFactory.class));
        final CrawlerClient client = crawlerClientFactory.getClient(url);
        if (client == null) {
            throw new FessSystemException("No CrawlerClient: " + configId + ", url: " + url);
        }
        return writeContent(configId, url, client);
    }

                }
            }
        }
    }

    protected CrawlerClient getClient(final String url) {
        return clientFactory.getClient(url);
    }

    protected boolean isContentUpdated(final CrawlerClient client, final UrlQueue<?> urlQueue) {
        if (urlQueue.getLastModified() != null) {

                return e.getFirst();
            }
            return null;
        }).filter(StringUtil::isNotBlank).findFirst()//
                .map(s -> clientFactory.getClient(s + ":" + url))//
                .orElseGet(() -> clientFactory.getClient(url));
        if (logger.isDebugEnabled()) {
            logger.debug("CrawlerClient: {}", client.getClass().getCanonicalName());
        }
        return client;
    }

        try {
            responseData.setMethod(Constants.GET_METHOD);

            final FtpInfo ftpInfo = new FtpInfo(uri);
            responseData.setUrl(ftpInfo.toUrl());

            client = getClient(ftpInfo);

            FTPFile file = null;
            client.changeWorkingDirectory(ftpInfo.getParent());
            validateRequest(client);

            if (ftpInfo.getName() == null) {

        }

        final CrawlerClientFactory crawlerClientFactory = crawlingConfig.initializeClientFactory(ComponentUtil::getCrawlerClientFactory);
        final CrawlerClient client = crawlerClientFactory.getClient(url);
        if (client == null) {
            throw new CrawlingAccessException("CrawlerClient is null for " + url);
        }

        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();

        for ( KerberosTicket ticket : subject.getPrivateCredentials(KerberosTicket.class) ) {
            MIEName client = new MIEName(mech, ticket.getClient().getName());
            MIEName server = new MIEName(mech, ticket.getServer().getName());
            if ( src.equals(client) && targ.equals(server) ) {
                return ticket.getSessionKey();
            }

                return;
            }

            final String url = dataMap.get(fessConfig.getIndexFieldUrl()).toString();
            final CrawlerClient client = crawlerClientFactory.getClient(url);
            if (client == null) {
                logger.warn("CrawlerClient is null. Data: {}", dataMap);
                return;
            }