* <pre>
     * <span style="font-size: 130%; color: #553000">[Small Helper]</span>
     * o saveInfo() <span style="color: #3F7E5E">// save messages to session</span>
     * o write() <span style="color: #3F7E5E">// write text to specified file</span>
     * o copyBeanToBean() <span style="color: #3F7E5E">// copy bean to bean by BeanUtil</span>
     * o getServletContext() <span style="color: #3F7E5E">// get servlet context</span>
     * </pre>

    public static final String LOAD_EXTERNAL_DTD_FEATURE = "nonvalidating/load-external-dtd";

    public static final String FESEN_TYPE_CLOUD = "cloud";

    public static final String FESEN_TYPE_AWS = "aws";

    public static final String FESEN_USERNAME = "fesen.username";

    public static final String FESEN_PASSWORD = "fesen.password";

        String httpAddress = SystemUtil.getSearchEngineHttpAddress();
        if (StringUtil.isBlank(httpAddress) && (runner == null)) {
            switch (fessConfig.getFesenType()) {
            case Constants.FESEN_TYPE_CLOUD:
            case Constants.FESEN_TYPE_AWS:
                httpAddress = org.codelibs.fess.util.ResourceUtil.getFesenHttpUrl();
                break;
            default:
                runner = new OpenSearchRunner();

        final FessConfig fessConfig = ComponentUtil.getFessConfig();

        final String fesenType = fessConfig.getFesenType();
        switch (fesenType) {
        case Constants.FESEN_TYPE_CLOUD:
        case Constants.FESEN_TYPE_AWS:
            // nothing
            break;
        default:
            for (final String path : getDictionaryPaths()) {

        setSystemPropertyAsBoolean(Constants.RESULT_COLLAPSED_PROPERTY, value);
    }

    default boolean isResultCollapsed() {
        return switch (getFesenType()) {
        case Constants.FESEN_TYPE_CLOUD, Constants.FESEN_TYPE_AWS -> false;
        default -> getSystemPropertyAsBoolean(Constants.RESULT_COLLAPSED_PROPERTY, false);
        };
    }

    default void setLoginLinkEnabled(final boolean value) {