protected ActionForward findSuccess(
     ActionMapping mapping,
     ActionForm form,
     HttpServletRequest request,
     HttpServletResponse response) {
   String parameter = request.getParameter("parameter");
   if (parameter == null) {
     parameter = mapping.getParameter();
   }
   String value =
       ServletParameterHelper.replaceDynamicParameters(parameter, request.getParameterMap());
   ActionForward forward = null;
   if (StringUtil.asNull(value) != null) {
     forward = mapping.findForward("success-" + value);
   } else {
     forward = mapping.findForward("success-null");
   }
   if (forward != null) {
     return forward;
   } else {
     return super.findSuccess(mapping, form, request, response);
   }
 }