Get CapsLock-state in JavaFX

I'm trying to build an input form with several checks. One of those is to check if CapsLock is active. It works if I try to build this function together with Java Swing, see code below. But in JavaFX, it DOES not work at all. I get the same state every time I check; it seems like my application just asks for the initial state, and then saves it, and present it further...

JavaSwing (Works just fine)

frame.addKeyListener(new KeyListener() {
        public void keyTyped(KeyEvent e) {
            if(e.getKeyCode() == KeyEvent.VK_CAPS_LOCK){
                System.out.println(Toolkit.getDefaultToolkit().getLockingKeyState(KeyEvent.VK_CAPS_LOCK));
            } else if(e.isShiftDown()){
                System.out.println("SHIFT");
            }
        }

        public void keyPressed(KeyEvent e) {
            if(e.getKeyCode() == KeyEvent.VK_CAPS_LOCK){
                System.out.println(Toolkit.getDefaultToolkit().getLockingKeyState(KeyEvent.VK_CAPS_LOCK));
            } else if(e.isShiftDown()){
                System.out.println("SHIFT");
            }
        }

        public void keyReleased(KeyEvent e) {
            if(e.getKeyCode() == KeyEvent.VK_CAPS_LOCK){
                System.out.println(Toolkit.getDefaultToolkit().getLockingKeyState(KeyEvent.VK_CAPS_LOCK));
            } else if(e.isShiftDown()){
                System.out.println("SHIFT");
            }
        }
});

JavaFX (Always present the same state)

scene.setOnKeyReleased(new EventHandler<javafx.scene.input.KeyEvent>() {
    @Override
    public void handle(javafx.scene.input.KeyEvent event) {
        if(event.getCode() == KeyCode.CAPS){
            System.out.println("CAPS");
            System.out.println(Toolkit.getDefaultToolkit().getLockingKeyState(KeyEvent.VK_CAPS_LOCK));
        }
    }
});

Does anyone know why? What can i do?