JavaFX Enter key issue on ComboBox

So I came with this nasty solution to differentiate the enter event. The fix is as below:

• Created a custom combo skin to indentify the listView and set a flag when an "enter" key is pressed on listview.
• In the Custom combo event dispatcher,check the flag if the enter is pressed while the popup is opened and then consume the event in dispatcher.

The question is still open for any better ideas.

import com.sun.javafx.scene.control.skin.ComboBoxListViewSkin;
import javafx.application.Application;
import javafx.event.EventDispatcher;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.ComboBox;
import javafx.scene.control.ListView;
import javafx.scene.control.Skin;
import javafx.scene.control.TextField;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyEvent;
import javafx.scene.layout.Priority;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

public class ComboBoxEnterKeyIssue extends Application {

    private DateFormat df = new SimpleDateFormat("hh:mm:ss");

    @Override
    public void start(Stage primaryStage) throws Exception {
        TextField textField1 = new TextField();
        textField1.setMaxWidth(150);

        MyComboBox<String> comboBox = new MyComboBox<>();
        comboBox.setPrefWidth(150);
        comboBox.getItems().addAll("Item 1", "Item 2", "Item 3", "Item 4", "Item 5");
        comboBox.addEventFilter(KeyEvent.KEY_RELEASED, ke -> {
            if (ke.getCode() == KeyCode.DOWN && !comboBox.isShowing()) {
                comboBox.show();
                ke.consume();
            } else if (ke.getCode() == KeyCode.ENTER) {
                ke.consume(); // Has no effect !!
            }
        });
        comboBox.addEventHandler(KeyEvent.KEY_RELEASED, ke -> {
            if (ke.getCode() == KeyCode.ENTER) {
                ke.consume(); // Has no effect !!
            }
        });

        TextField textField2 = new TextField();
        textField2.setMaxWidth(150);

        ListView<String> output = new ListView<>();
        VBox.setVgrow(output, Priority.ALWAYS);

        VBox pane = new VBox(textField1, comboBox, textField2, output);
        pane.setPadding(new Insets(10));
        pane.setSpacing(10);
        pane.setOnKeyReleased(ke -> {
            if (ke.getCode() == KeyCode.ENTER) {
                output.getItems().add(df.format(new Date()) + " :: Enter key released on pane...");
                // Form submission/validation is performed here !!
            }
        });

        Scene scene = new Scene(pane, 500, 400);
        primaryStage.setScene(scene);
        primaryStage.setTitle("ComboBox enter key issue");
        primaryStage.show();
    }

    class MyComboBox<T> extends ComboBox<T> {
        boolean hiddenByEnter = false;

        public MyComboBox() {
            init();
        }

        public void setHiddenByEnter(boolean hiddenByEnter) {
            this.hiddenByEnter = hiddenByEnter;
        }

        private void init() {
            final EventDispatcher initial = getEventDispatcher();
            setEventDispatcher((event, tail) -> {
                // Consuming the event only if the popup is hidden by 'enter' key event.
                if (event instanceof KeyEvent && ((KeyEvent) event).getCode() == KeyCode.ENTER && hiddenByEnter) {
                    hiddenByEnter = false;
                    return null;
                }
                return initial.dispatchEvent(event, tail);
            });
        }

        @Override
        protected Skin<?> createDefaultSkin() {
            return new MyComboBoxSkin<>(this);
        }
    }

    class MyComboBoxSkin<T> extends ComboBoxListViewSkin<T> {

        private ListView<T> listView;

        public MyComboBoxSkin(MyComboBox<T> comboBox) {
            super(comboBox);
            /* Identifying the "ENTER" event on listView in popup, to differentiate the events. */
            getPopup().showingProperty().addListener((obs, old, showing) -> {
                if (showing) {
                    comboBox.setHiddenByEnter(false);
                    if (listView == null) {
                        listView = (ListView) getPopup().getScene().getRoot().lookup(".list-view");
                        listView.addEventFilter(KeyEvent.KEY_PRESSED, ke -> {
                            if (ke.getCode() == KeyCode.ENTER) {
                                comboBox.setHiddenByEnter(true);
                            }
                        });
                    }
                }
            });
        }
    }
}