@Override
 public void onError(WebContext ctx, HandledException error) {
   if (error != null) {
     UserContext.message(Message.error(error.getMessage()));
   }
   defaultRoute.accept(ctx);
 }
 public void showSavedMessage() {
   UserContext.message(Message.info(NLS.get("BizController.changesSaved")));
 }
 public void showDeletedMessage() {
   UserContext.message(Message.info(NLS.get("BizController.objectDeleted")));
 }