default void initializeDefaultHttpProxy(final Map<String, Object> paramMap) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String proxyHost = fessConfig.getHttpProxyHost();
        final String proxyPort = fessConfig.getHttpProxyPort();
        if (StringUtil.isNotBlank(proxyHost) && StringUtil.isNotBlank(proxyPort)) {

        String path = "/path/to/thumbnail.jpg";

        // Since createTask requires FessConfig, it may not work properly
        // We test that the method can be called without throwing exceptions
        try {
            emptyGenerator.createTask(path, docMap);
        } catch (Exception e) {
            // Expected when FessConfig is not available
        }
    }

        crudMode = CrudMode.CREATE;
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        includedUrls = fessConfig.getCrawlerDocumentHtmlDefaultIncludeIndexPatterns();
        excludedUrls = fessConfig.getCrawlerDocumentHtmlDefaultExcludeIndexPatterns();
        includedDocUrls = fessConfig.getCrawlerDocumentHtmlDefaultIncludeSearchPatterns();
        excludedDocUrls = fessConfig.getCrawlerDocumentHtmlDefaultExcludeSearchPatterns();

        return true;
    }

    @Test
    public void test_initializeClientFactory() {
        final Map<String, String> systemPropMap = new HashMap<>();
        FessProp.propMap.clear();
        FessConfig fessConfig = new FessConfig.SimpleImpl() {
            @Override
            public String getSystemProperty(final String key, final String defaultValue) {
                return systemPropMap.getOrDefault(key, defaultValue);
            }

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final List<String> list = new ArrayList<>();
        list.add(fessConfig.getRoleSearchUserPrefix() + getName());
        stream(getRoles()).of(stream -> stream.forEach(s -> list.add(fessConfig.getRoleSearchRolePrefix() + decode(s))));
        stream(getGroups()).of(stream -> stream.forEach(s -> list.add(fessConfig.getRoleSearchGroupPrefix() + decode(s))));

                    entity.remove(fessConfig.getIndexFieldVersion());
                    final Number seqNo = (Number) entity.remove(fessConfig.getIndexFieldSeqNo());
                    final Number primaryTerm = (Number) entity.remove(fessConfig.getIndexFieldPrimaryTerm());
                    if (seqNo != null && primaryTerm != null && oldId != null) {

     */
    @Override
    public Tuple3<String, String, String> createTask(final String path, final Map<String, Object> docMap) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String thumbnailId = DocumentUtil.getValue(docMap, fessConfig.getIndexFieldId(), String.class);
        final Tuple3<String, String, String> task = new Tuple3<>(getName(), thumbnailId, path);
        if (logger.isDebugEnabled()) {

     * then falls back to the URL configured in FessConfig.
     *
     * @return the HTTP URL for the OpenSearch server
     */
    public static String getFesenHttpUrl() {
        final String url = SystemUtil.getSearchEngineHttpAddress();
        if (url != null) {
            return url;
        }
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return fessConfig.getFesenHttpUrl();
    }

    /**

     * @return The search role.
     */
    protected String createSearchRole(final int type, final String name) {
        if (fessConfig.isLdapLowercasePermissionName()) {
            return type + fessConfig.getCanonicalLdapName(name).toLowerCase(Locale.ROOT);
        }
        return type + fessConfig.getCanonicalLdapName(name);
    }

        assertEquals("guest", permissionHelper.encode("guest"));

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @Override
            public String getRoleSearchUserPrefix() {
                return fessConfig.getRoleSearchUserPrefix();
            }

            @Override