Arrow in menubar

Question

Hi guys,
I've a small problem. I've a BorderPain and in the top I've a MenuBar with some MenuItem (1 ord two for every Menu). When I click in the menu the menu is opened but is displayed a down arrow and only one menuitem is displayed!!!
It's very strage, infact after I clicked on the arrow the menu is show entirely and no arrow is displayed.
Any suggestion?
Thanks very much

Answer 1

Sorry but that is the only code that create the menu. It's very strange infact in my scenebuilder in preview mode I've not this problem but after, when I run the application I have the arrow in the menu.
This is the controller of the main app where there is the menu:
public class OdontoxController implements Initializable {
    private Main application;
    @FXML //  fx:id="container"
    private Pane container; // Value injected by FXMLLoader
//    @FXML //  fx:id="itemLavorazioni"
//    private MenuItem itemLavorazioni; // Value injected by FXMLLoader
//    @FXML //  fx:id="itemClienti"
//    private MenuItem itemClienti; // Value injected by FXMLLoader
//    @FXML //  fx:id="itemMovimenti"
//    private MenuItem itemMovimenti; // Value injected by FXMLLoader
//    @FXML //  fx:id="itemProdotti"
//    private MenuItem itemProdotti; // Value injected by FXMLLoader
//    @FXML //  fx:id="menuAnagrafiche"
//    private Menu menuAnagrafiche; // Value injected by FXMLLoader
//    @FXML //  fx:id="menuLavorazioni"
//    private Menu menuLavorazioni; // Value injected by FXMLLoader
//    @FXML //  fx:id="menubar"
//    private MenuBar menubar; // Value injected by FXMLLoader
//    @FXML //  fx:id="menucontabilita"
//    private Menu menucontabilita; // Value injected by FXMLLoader
    @FXML //  fx:id="vbox"
    private VBox vbox; // Value injected by FXMLLoader
    @FXML //  fx:id="headerApp"
    private Pane headerApp; // Value injected by FXMLLoader
    @Override // This method is called by the FXMLLoader when initialization is complete
    public void initialize(URL fxmlFileLocation, ResourceBundle resources) {
//        assert itemClienti != null : "fx:id=\"itemClienti\" was not injected: check your FXML file 'Odontox.fxml'.";
//        assert itemLavorazioni != null : "fx:id=\"itemLavorazioni\" was not injected: check your FXML file 'Odontox.fxml'.";
//        assert itemMovimenti != null : "fx:id=\"itemMovimenti\" was not injected: check your FXML file 'Odontox.fxml'.";
//        assert itemProdotti != null : "fx:id=\"itemProdotti\" was not injected: check your FXML file 'Odontox.fxml'.";
//        assert menuAnagrafiche != null : "fx:id=\"menuAnagrafiche\" was not injected: check your FXML file 'Odontox.fxml'.";
//        assert menuLavorazioni != null : "fx:id=\"menuLavorazioni\" was not injected: check your FXML file 'Odontox.fxml'.";
//        assert menubar != null : "fx:id=\"menubar\" was not injected: check your FXML file 'Odontox.fxml'.";
//        assert menucontabilita != null : "fx:id=\"menucontabilita\" was not injected: check your FXML file 'Odontox.fxml'.";
        assert vbox != null : "fx:id=\"vbox\" was not injected: check your FXML file 'Odontox.fxml'.";
        // initialize your logic here: all @FXML variables will have been injected
        start();
    private void start() {
    public void setApp(Main application) {
        this.application = application;
    // Handler for Menu[fx:id="menuLavorazioni"] onAction
    public void processLavorazioni(ActionEvent event) {
        try {
            LavoriController controller = (LavoriController) replaceSceneContent("lavori/Lavori.fxml");
            controller.setOdontoxController(this);
        } catch (Exception ex) {
            ex.printStackTrace();
    public void processNuovaLavorazione(ActionEvent event) {
        try {
            LavoriDettaglioController controller = (LavoriDettaglioController) replaceSceneContent("lavori/LavoriDettaglio.fxml");
            controller.setOdontoxController(this);
        } catch (Exception ex) {
            ex.printStackTrace();
    // Handler for Menu[fx:id="menuLavorazioni"] onAction
    public void processClienti(ActionEvent event) {
        try {
            ClientiController controller = (ClientiController) replaceSceneContent("clienti/Clienti.fxml");
            controller.setApp(application);
        } catch (Exception ex) {
            ex.printStackTrace();
    // Handler for MenuItem[fx:id="itemMovimenti"] onAction
    public void processMovimenti(ActionEvent event) {
        try {
            MovimentiController controller = (MovimentiController) replaceSceneContent("movimenti/Movimenti.fxml");
            controller.setApp(application);
        } catch (Exception ex) {
            ex.printStackTrace();
    // Handler for MenuItem[fx:id="itemProdotti"] onAction
    public void processProdotti(ActionEvent event) {
        try {
            ProdottiController controller = (ProdottiController) replaceSceneContent("prodotti/Prodotti.fxml");
            controller.setApp(application);
        } catch (Exception ex) {
            ex.printStackTrace();
    public Initializable replaceSceneContent(String fxml) throws Exception {
        FXMLLoader loader = new FXMLLoader();
        InputStream in = OdontoxController.class.getResourceAsStream(fxml);
        loader.setBuilderFactory(new JavaFXBuilderFactory());
        loader.setLocation(OdontoxController.class.getResource(fxml));
        AnchorPane page;
        try {
            page = (AnchorPane) loader.load(in);
        } finally {
            if (in != null) {
                in.close();
        container.getChildren().clear();
        container.getChildren().add(page);
        return (Initializable) loader.getController();
}As you can see I have commented the code that refers the menu as test but not even in this case the menu works fine.
Any ideas?
Thanks