if (list == null) {
            final String value = getSystemProperty(Constants.DEFAULT_SORT_VALUE_PROPERTY);
            if (StringUtil.isBlank(value)) {
                list = Collections.emptyList();
            } else {
                final Set<String> keySet = new HashSet<>();

                        final String userCode = userInfoHelper.getUserCode();

                        if (StringUtil.isBlank(userCode)) {
                            throw new WebApiException(HttpServletResponse.SC_BAD_REQUEST, "No user session.");
                        }
                        if (StringUtil.isBlank(favoriteUrl)) {
                            throw new WebApiException(HttpServletResponse.SC_BAD_REQUEST, "URL is null.");

     *
     * @param path The path to normalize.
     * @return The normalized path.
     */
    public String normalizeConfigPath(final String path) {

        if (StringUtil.isBlank(path)) {
            return StringUtils.EMPTY;
        }

        final String p = path.trim();
        if (p.startsWith("#")) {
            return StringUtils.EMPTY;
        }

    private static final long serialVersionUID = 1L;

    @Override
    public String getScriptType() {
        final String st = super.getScriptType();
        if (StringUtil.isBlank(st)) {
            return "groovy";
        }
        return st;
    }

    public boolean isLoggingEnabled() {
        return Constants.T.equals(getJobLogging());
    }

        String value = ComponentUtil.getFessConfig().getSystemProperty(ENTRAID_DEFAULT_GROUPS);
        if (StringUtil.isBlank(value)) {
            value = ComponentUtil.getFessConfig().getSystemProperty(AAD_DEFAULT_GROUPS);
        }
        if (StringUtil.isBlank(value)) {
            return Collections.emptyList();
        }

        if (xpath == null) {
            xpath = fessConfig.getCrawlerDocumentHtmlCanonicalXpath();
        }
        if (StringUtil.isBlank(xpath)) {
            return null;
        }
        final String canonicalUrl = getSingleNodeValue(document, xpath, node -> node);
        if (StringUtil.isBlank(canonicalUrl)) {
            return null;
        }
        return normalizeCanonicalUrl(responseData.getUrl(), canonicalUrl);
    }

     * @throws CrawlerSystemException if data deserialization fails
     */
    public Map<String, Object> processRequest(final CrawlingConfig crawlingConfig, final String crawlingInfoId, final String url) {
        if (StringUtil.isBlank(crawlingInfoId)) {
            throw new CrawlingAccessException("sessionId is null. Cannot access document without a valid session ID.");
        }

        assertEquals("", basePath);

        basePath = virtualHostHelper.getVirtualHostBasePath("  ", new HtmlNext("/test"));
        assertEquals("", basePath); // StringUtil.isBlank considers whitespace as blank
    }

    @Test
    public void test_getVirtualHostKey() {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

                        message != null ? message.length() : 0, clearParam);
            }

            if (StringUtil.isBlank(message)) {
                if ("true".equals(clearParam) && StringUtil.isNotBlank(sessionId)) {
                    final String clearUserId = getUserId(request);

     * @param version the version of the artifact
     * @return the artifact if found, null otherwise
     */
    public Artifact getArtifact(final String name, final String version) {
        if (StringUtil.isBlank(name) || StringUtil.isBlank(version)) {
            return null;
        }
        for (final Artifact artifact : getAvailableArtifacts(ArtifactType.getType(name))) {