url = loginUrl + "?service=" + serviceProperties.getService();
url = loginUrl + "?service=" + URLEncoder.encode(serviceProperties.getService(), "UTF-8");
    public void commence(ServletRequest request, ServletResponse response)        throws IOException, ServletException {        String url;        if (serviceProperties.isSendRenew()) {            url = loginUrl + "?renew=true" + "&service="                + serviceProperties.getService();        } else {            url = loginUrl + "?service=" + serviceProperties.getService();        }        ((HttpServletResponse) response).sendRedirect(url);    }