A DESCRIPTION OF THE PROBLEM :
this change broke selecting combobox items via up/down arrows:
https://github.com/openjdk/jfx/commit/77a183e70b1a8a94f2525d235ed22f6bb1dff86d#diff-b7552c89404b578338100a9dec6ad6bc8ff7efb87e732417cc187c1a41aa691bL51
modules/javafx.controls/src/main/java/com/sun/javafx/scene/control/behavior/ComboBoxListViewBehavior.java


REGRESSION : Last worked in version 14

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
- Create a combobox with multiple items
- Focus it
- Press down


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
first item is selected
ACTUAL -
nothing happens

---------- BEGIN SOURCE ----------
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.scene.Scene;
import javafx.scene.control.ComboBox;
import javafx.scene.control.TextField;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

import java.util.List;

public class App extends Application {

  @Override
  public void start(Stage primaryStage) throws Exception {
    var root = new StackPane();
    var scene = new Scene(root);
    primaryStage.setScene(scene);
    var box = new VBox();
    var text = new TextField();
    var comboBox = new ComboBox<String>();
    comboBox.itemsProperty().set(FXCollections.observableArrayList(List.of("foo", "bar")));
    box.getChildren().addAll(text, comboBox);
    root.getChildren().add(box);
    primaryStage.show();
  }
}
---------- END SOURCE ----------

FREQUENCY : always