public void broadcast(FacesEvent event) throws AbortProcessingException {
        if (TransactionTokenUtil.isDoOnce(getId())) {
            final FacesContext context = FacesContext.getCurrentInstance();
            if (TransactionTokenUtil.verify(context)) {
                super.broadcast(event);
            } else {
                final Map requestMap = context.getExternalContext()
                        .getRequestMap();
                if (PostbackUtil.isPostback(requestMap)) {
                    context.renderResponse();
                    return;
                }
                String path = RedirectScope.getRedirectingPath(context);
                if (path == null) {
                    path = RedirectScope.getRedirectedPath(context);
                }
                if (path != null) {
                    NavigationHandlerUtil.assertNotAlreadyRedirect(context);
                    NavigationHandlerUtil.redirect(context, path);
                }
                context.renderResponse();
            }
            return;
        }
        super.broadcast(event);
    }