}

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

    default String[] getDefaultSortValues(final OptionalThing<FessUserBean> userBean) {
        @SuppressWarnings("unchecked")
        List<Pair<String, String>> list = (List<Pair<String, String>>) propMap.get(DEFAULT_SORT_VALUES);
        if (list == null) {