private SystemUtil() {
    }

    @SuppressWarnings("deprecation")
    public static String getSearchEngineHttpAddress() {
        final String value = System.getProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);
        if (value != null) {
            return value;
        }
        return System.getProperty(Constants.FESS_ES_HTTP_ADDRESS);
    }

    //

    // ===================================================================================
    //                                                                      Search Execute
    //                                                                      ==============

    @Execute
    public HtmlResponse index(final ErrorForm form) {
        return asHtml(virtualHost(path_Error_SystemJsp));

    // ===================================================================================
    //                                                                      Search Execute
    //                                                                      ==============

    @Execute
    public HtmlResponse index() {
        if (isLoginRequired()) {
            return redirectToLogin();

        return ROLE;
    }

    // ===================================================================================
    //                                                                      Search Execute
    //                                                                      ==============
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index(final SearchForm form) {

        }
        // TODO Long, Integer, String supported only.

        // setup condition
        cb.query().addOrderBy_Term_Asc();

        // search

    }

        }
        // TODO Long, Integer, String supported only.

        // setup condition
        cb.query().addOrderBy_SortOrder_Asc();
        cb.query().addOrderBy_Name_Asc();
        // search

    }

    public List<RoleType> getRoleTypeList() {
        return roleTypeBhv.selectList(cb -> {
            cb.query().addOrderBy_SortOrder_Asc();
            cb.query().addOrderBy_Name_Asc();

    // ===================================================================================
    // Hook
    // ======

    // ===================================================================================
    // Search Execute
    // ==============

    @Execute
    public HtmlResponse index() {
        return asIndexHtml();
    }

    @Execute
    public HtmlResponse changePassword(final ProfileForm form) {

	<script type="text/javascript" src="${fe:url('/js/bootstrap.min.js')}"></script>
	<script type="text/javascript" src="${fe:url('/js/suggestor.js')}"></script>
	<script type="text/javascript" src="${fe:url('/js/search.js')}"></script>
</body>
</html>

        return ROLE;
    }

    // ===================================================================================
    //                                                                      Search Execute
    //                                                                      ==============
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index(final SearchForm form) {

        return ROLE;
    }

    // ===================================================================================
    //                                                                      Search Execute
    //                                                                      ==============
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index(final SearchForm form) {