final String proxyHost = fessConfig.getHttpProxyHost();
        final String proxyPort = fessConfig.getHttpProxyPort();
        if (StringUtil.isNotBlank(proxyHost) && StringUtil.isNotBlank(proxyPort)) {
            paramMap.put(Param.Client.PROXY_HOST, proxyHost);
            paramMap.put(Param.Client.PROXY_PORT, proxyPort);
            final String proxyUsername = fessConfig.getHttpProxyUsername();

        final String proxyHost = paramMap.get(CRAWLER_WEB_PREFIX + "proxyHost");
        final String proxyPort = paramMap.get(CRAWLER_WEB_PREFIX + "proxyPort");
        if (StringUtil.isNotBlank(proxyHost) && StringUtil.isNotBlank(proxyPort)) {
            factoryParamMap.put(HcHttpClient.PROXY_HOST_PROPERTY, proxyHost);
            factoryParamMap.put(HcHttpClient.PROXY_PORT_PROPERTY, proxyPort);

        final String proxyHost = (String) paramMap.get(Param.Client.PROXY_HOST);
        final String proxyPort = (String) paramMap.get(Param.Client.PROXY_PORT);
        if (StringUtil.isNotBlank(proxyHost) && StringUtil.isNotBlank(proxyPort)) {
            // proxy credentials

  @AfterEach
  fun tearDown() {
    java.net.Authenticator.setDefault(null)
    System.clearProperty("proxyHost")
    System.clearProperty("proxyPort")
    System.clearProperty("http.proxyHost")
    System.clearProperty("http.proxyPort")
    System.clearProperty("https.proxyHost")
    System.clearProperty("https.proxyPort")
    if (cache != null) {
      cache!!.delete()
    }
  }

  @Test