EnterKeyCodeIsUndefined.java

package bugs.keyevent.RT23315;

import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.ComboBox;
import javafx.scene.input.KeyEvent;
import javafx.stage.Stage;

public class EnterKeyCodeIsUndefined extends Application {

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage stage) {
        stage.addEventHandler(KeyEvent.ANY, new EventHandler<KeyEvent>() {
            @Override
            public void handle(KeyEvent keyEvent) {
                System.out.println(keyEvent);
            }
        });
        ComboBox comboBox = new ComboBox();
        stage.setScene(new Scene(comboBox));
        stage.show();
    }
}