}
            langSet.remove(Constants.ALL_LANGUAGES);
            return langSet.toArray(new String[langSet.size()]);
        }
        if (ComponentUtil.getFessConfig().isBrowserLocaleForSearchUsed()) {
            final Set<String> langSet = new HashSet<>();
            final Enumeration<Locale> locales = request.getLocales();
            if (locales != null) {

    }

    default boolean isSearchFileProxyEnabled() {
        return getSystemPropertyAsBoolean(Constants.SEARCH_FILE_PROXY_PROPERTY, true);
    }

    default boolean isBrowserLocaleForSearchUsed() {
        return getSystemPropertyAsBoolean(Constants.USE_BROWSER_LOCALE_FOR_SEARCH_PROPERTY, false);
    }

    default String[] getDefaultSortValues(final OptionalThing<FessUserBean> userBean) {