RenderUtils.invalidateViewState();
    public ActionForward createNewInvitedPerson(ActionMapping mapping, ActionForm actionForm,	    HttpServletRequest request, HttpServletResponse response) throws Exception {	final IViewState viewState = RenderUtils.getViewState("invitedPersonBeanWithLoginInfo");	InvitedPersonBean invitedPersonBean = (InvitedPersonBean) viewState.getMetaObject().getObject();	Object[] args = { invitedPersonBean };	Invitation invitation = null;	try {	    invitation = (Invitation) executeService("CreateNewInvitedPerson", args);	} catch (DomainException e) {	    addActionMessage(request, e.getMessage());	    request.setAttribute("invitedPersonBean", invitedPersonBean);	    return mapping.findForward("prepareCreateInvitedPerson");	}	RenderUtils.invalidateViewState();	request.setAttribute("createdPerson", invitation != null ? invitation.getInvitedPerson() : null);	return prepareSearchExistentPersonBeforeCreateNewInvitedPerson(mapping, actionForm, request, response);    }