RenderUtils.invalidateViewState();
    public ActionForward submitBlueprint(ActionMapping mapping, ActionForm form,            HttpServletRequest request, HttpServletResponse response) throws FenixActionException,            FenixFilterException, FenixServiceException {        final IViewState viewState = RenderUtils.getViewState("spaceBlueprintVersion");        final CreateBlueprintSubmissionBean blueprintSubmissionBean = (CreateBlueprintSubmissionBean) viewState                .getMetaObject().getObject();        try {            ServiceUtils.executeService(getUserView(request), "CreateNewBlueprintVersion",                    new Object[] { blueprintSubmissionBean });        } catch (DomainException ex) {            saveActionMessageOnRequest(request, ex.getKey(), ex.getArgs());            RenderUtils.invalidateViewState();        } catch (FileManagerException ex) {            saveActionMessageOnRequest(request, ex.getKey(), ex.getArgs());            RenderUtils.invalidateViewState();        }                       request.setAttribute("blueprintBean", blueprintSubmissionBean);        setMostRecentBlueprintFile(request, blueprintSubmissionBean.getSpaceInformation());        setSpaceInfo(request, blueprintSubmissionBean.getSpaceInformation());        return mapping.findForward("showBlueprintVersions");    }