if (forward.endsWith("?")) { forward = forward.substring(0, forward.length() - 1); }
    public ActionForward execute(ActionMapping mapping,                                 ActionForm form,                                 HttpServletRequest request,                                 HttpServletResponse response)        throws Exception {        HttpSession session = request.getSession();        String forward = request.getParameter("forward");        String id = request.getParameter("id");        Map collapsed = SessionMethods.getCollapsedMap(session);        Boolean b = (Boolean.TRUE == collapsed.get(id) ? Boolean.FALSE : Boolean.TRUE);        collapsed.put(id, b);        return new ActionForward(forward, true);    }