@UiHandler("btnClear")
 void onClear(ClickEvent e) {
   acList.clearErrorOrSuccess();
 }
 @UiHandler("btnError")
 void onError(ClickEvent e) {
   acList.setError("This is an error message for autocomplete.");
 }
 @UiHandler("btnSuccess")
 void onSuccess(ClickEvent e) {
   acList.setSuccess("This is a success message for autocomplete");
 }
  @Inject
  ErrorsView(Binder uiBinder) {
    initWidget(uiBinder.createAndBindUi(this));

    acList.setSuggestions(getSimpleSuggestions());
  }