Text not updated when changing the ResourceBundle

Question

this is an abstraction of what i have on my code:
controller
public class controller extends VBox{
     @FXML protected Label ex2;
     public CtrlMainMenu() throws Exception{
          FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("/view/View.fxml"));
          fxmlLoader.setController(this);
          fxmlLoader.setRoot(this);
          fxmlLoader.setResources(CtrlLanguage.resource);
          fxmlLoader.load();
     @Override public void initialize(URL arg0, ResourceBundle arg1) {
          ex2.setText(arg1.getString("ex2"));
}View
<fx:root type="VBox" xmlns:fx="http://javafx.com/fxml">
     <children>
          <Label text="%ex1"/>
          <Label fx:id="ex2"/>
     <children>
</fx:root>Language controller
public class CtrlLanguage{
     private static String PATH =
          new File(
               CtrlImageLoader.class.getProtectionDomain().getCodeSource().getLocation().getPath()
          ).getParentFile().getPath() + "/language/";
     public static ResourceBundle resource;
     public static void setLanguage(String file) throws Exception{
          try {
               if(new File(PATH + file).exists())
                    resource = new PropertyResourceBundle(new FileInputStream(PATH + file));
               else
                    resource = new PropertyResourceBundle(CtrlLanguage.class.getResourceAsStream("/language/"+file));
          } catch (Exception e) {
               resource = new PropertyResourceBundle(CtrlLanguage.class.getResourceAsStream("/language/EN"));
     public static String get(String key){
          try {
               return resource.getString(key);
          } catch (Exception e) {
               return key;
}problem comes when I try to change the language without changing the current root
the elements of the view are not updated when the bundle is changed (CtrlLanguage.setLanguage("file");) until the root is changed/loaded again
is there any way so i can make the content change without having to reload again the root?

Answer 1

A method which returns an instance of the following class:
* A localizable read only property for internationalization of string properties.
* @author Christian Schudt
public final class LocalizableStringProperty extends ReadOnlyStringProperty {
    private String resourceKey;
    private StringProperty text;
    private String baseName;
    private ClassLoader classLoader;
    // Keep the listener as hard reference in the class, so that it won't get GCed, until this class has no references any more.
    private ChangeListener<Locale> changeListener;
    public LocalizableStringProperty(LocaleManager localeManager, String baseName, String resourceKey) {
        this(localeManager, baseName, resourceKey, null);
    public LocalizableStringProperty(LocaleManager localeManager, String baseName, String resourceKey, ClassLoader classLoader) {
        changeListener = new ChangeListener<Locale>() {
            @Override
            public void changed(ObservableValue<? extends Locale> observableValue, Locale locale, Locale locale1) {
                localeChanged(locale1);
        localeManager.localeProperty().addListener(new WeakChangeListener<Locale>(changeListener));
        this.baseName = baseName;
        this.classLoader = classLoader;
        this.resourceKey = resourceKey;
        text = new SimpleStringProperty();
        localeChanged(localeManager.getLocale());
    private void localeChanged(Locale locale) {
        ResourceBundle resourceBundle;
        Locale.setDefault(locale);
        if (classLoader == null) {
            resourceBundle = ResourceBundle.getBundle(baseName, locale);
        } else {
            resourceBundle = ResourceBundle.getBundle(baseName, locale, classLoader);
        text.set(resourceBundle.getString(resourceKey));
    @Override
    public String get() {
        return text.get();
    @Override
    public Object getBean() {
        return text.getBean();
    @Override
    public String getName() {
        return text.getName();
    @Override
    public void addListener(ChangeListener<? super String> changeListener) {
        text.addListener(changeListener);
    @Override
    public void removeListener(ChangeListener<? super String> changeListener) {
        text.removeListener(changeListener);
    @Override
    public void addListener(InvalidationListener invalidationListener) {
        text.addListener(invalidationListener);
    @Override
    public void removeListener(InvalidationListener invalidationListener) {
        text.removeListener(invalidationListener);
}