final String lowerGroupDn = fessConfig.getLdapAdminGroupBaseDn().toLowerCase(Locale.ROOT);
                        final String lowerRoleDn = fessConfig.getLdapAdminRoleBaseDn().toLowerCase(Locale.ROOT);
                        processSearchRoles(result, (entryDn, name) -> {
                            final String lowerEntryDn = entryDn.toLowerCase(Locale.ROOT);
                            if (lowerEntryDn.indexOf(lowerGroupDn) != -1) {

            return normalizeQueryLanguages(requestLangs);
        }

        if (locales == null) {
            return StringUtil.EMPTY_STRINGS;
        }

        return normalizeQueryLanguages(Collections.list(locales).stream().map(locale -> {
            final String language = locale.getLanguage();
            final String country = locale.getCountry();
            if (StringUtil.isNotBlank(language)) {

        }

        @Override
        public Object getAttribute(final String name) {
            return request.getAttribute(name);
        }

        @Override
        public Locale getLocale() {
            return Locale.ROOT;
        }

        @Override
        public SearchRequestType getType() {
            return SearchRequestType.JSON;
        }

        @Override

     ...