SessionUtils.validSessionVerification(request, mapping);
  public ActionForward execute(ActionMapping mapping, ActionForm form,                                HttpServletRequest request,                                HttpServletResponse response)      throws Exception {    DynaActionForm escolherDisciplinaETipoForm = (DynaActionForm) form;        HttpSession sessao = request.getSession(false);    if (sessao != null) {	  ArrayList infoDisciplinasExecucao = (ArrayList) sessao.getAttribute("infoDisciplinasExecucao");	  int i = ((Integer) escolherDisciplinaETipoForm.get("indexDisciplinaExecucao")).intValue() - 1;	  sessao.setAttribute("infoDisciplinaExecucao",(InfoExecutionCourse) infoDisciplinasExecucao.get(i));      return mapping.findForward("Sucesso");    } else      throw new Exception();  // nao ocorre... pedido passa pelo filtro Autorizacao   }