When unselecting items in ListView by pressing Control key, no event is firing.
Thanks.

The listener is never called:
...
        // Selection
        listView.getSelectionModel().selectedItemProperty().addListener(
                new ChangeListener<Recipient>() {

                    public void changed(ObservableValue<? extends Recipient> ov,
                            Recipient old_val, Recipient new_val) {
                        System.err.println("OLD:"+old_val+", NEW:"+new_val);
                    }
                });