ParkingRequestSearch parkingRequestSearch = (ParkingRequestSearch) getRendererObject();
ParkingRequestSearch parkingRequestSearch = (ParkingRequestSearch) getRendererObject("parkingRequestSearch");
    public ActionForward showParkingRequests(ActionMapping mapping, ActionForm actionForm,            HttpServletRequest request, HttpServletResponse response) throws Exception {        // verificar autorizao        ParkingRequestSearch parkingRequestSearch = (ParkingRequestSearch) getRendererObject();        if (parkingRequestSearch == null) {            parkingRequestSearch = new ParkingRequestSearch();            String parkingRequestState = request.getParameter("parkingRequestState");            if (!StringUtils.isEmpty(parkingRequestState)) {                parkingRequestSearch.setParkingRequestState(ParkingRequestState                        .valueOf(parkingRequestState));            }            String parkingPartyClassification = request.getParameter("parkingPartyClassification");            if (!StringUtils.isEmpty(parkingPartyClassification)) {                parkingRequestSearch.setParkingPartyClassification(ParkingPartyClassification                        .valueOf(parkingPartyClassification));            }            String personName = request.getParameter("personName");            if (!StringUtils.isEmpty(personName)) {                parkingRequestSearch.setPersonName(personName);            }            String carPlateNumber = request.getParameter("carPlateNumber");            if (!StringUtils.isEmpty(carPlateNumber)) {                parkingRequestSearch.setCarPlateNumber(carPlateNumber);            }        }        request.setAttribute("parkingRequestSearch", parkingRequestSearch);        return mapping.findForward("showParkingRequests");    }