}

    @Override
    protected Client createClient() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String[] hosts =
                split(address, ",").get(stream -> stream.map(String::trim).filter(StringUtil::isNotEmpty).toArray(n -> new String[n]));
        final Builder builder = Settings.builder()
                .putList("http.hosts", hosts)

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String slackWebhookUrls = fessConfig.getSlackWebhookUrls();
        if (StringUtil.isBlank(slackWebhookUrls)) {
            return;
        }
        final String body = toSlackMessage(discloser);
        StreamUtil.split(slackWebhookUrls, "[,\\s]").of(stream -> stream.filter(StringUtil::isNotBlank).forEach(url -> {

                buf.append(ch);
            }
        }
        return new String(buf);
    }

    /**
     * Converts a {@link Document} to a string.
     *
     * @param document
     *            The document. Must not be {@literal null}.
     * @return The converted string.
     */
    public static String toString(final Document document) {
        assertArgumentNotNull("document", document);

        String toString1 = exception1.toString();
        assertNotNull(toString1);
        assertTrue(toString1.contains("CrawlerSystemException"));
        assertTrue(toString1.contains("Test message"));

        CrawlerSystemException exception2 = new CrawlerSystemException((String) null);
        String toString2 = exception2.toString();
        assertNotNull(toString2);

     * @return a DFS referral or null if not found
     * @throws SmbAuthException if authentication fails
     */
    public DfsReferral getReferral(final SmbTransport trans, final String domain, final String root, final String path,
            final NtlmPasswordAuthentication auth) throws SmbAuthException {
        if (DISABLED) {
            return null;
        }

        try {

        private static final String IMAGE_LOC_ELEMENT = "image:loc";

        private static final String IMAGE_CAPTION_ELEMENT = "image:caption";

        private static final String IMAGE_GEO_LOCATION_ELEMENT = "image:geo_location";

        private static final String IMAGE_TITLE_ELEMENT = "image:title";

        private static final String IMAGE_LICENSE_ELEMENT = "image:license";

            });
        }
        return Collections.emptyList();
    }

    /**
     * Converts a string to lowercase.
     *
     * @param term The string to convert.
     * @return The lowercase string.
     */
    private String toLowerCase(final String term) {
        return term != null ? term.toLowerCase(Locale.ROOT) : term;
    }

        }
        return new Extractor() {
            @Override
            public ExtractData getText(final InputStream in, final Map<String, String> params) {
                for (final Extractor extractor : extractors) {
                    try {
                        return extractor.getText(in, params);
                    } catch (final UnsupportedExtractException e) {

     *  @param expression A valid XPath string.
     *  @return An XPathEvaluationResult, which can be used to obtain a string, number, nodelist, etc, should never be null.
     *
     * @throws XPathExpressionException if an XPath expression error occurs.
     */
    public XPathEvaluationResult<?> eval(final Node contextNode, final String expression) throws XPathExpressionException {

     *
     * @param options
     */
    public StaticJAASConfiguration(Map<String, ?> options) {
        this.options = options;
    }

    /**
     * {@inheritDoc}
     *
     * @see javax.security.auth.login.Configuration#getAppConfigurationEntry(java.lang.String)
     */
    @Override
    public AppConfigurationEntry[] getAppConfigurationEntry(String name) {
        return new AppConfigurationEntry[] {