import javafx.application.Application; 
import javafx.scene.Scene; 
import javafx.scene.control.ComboBox; 
import javafx.scene.layout.StackPane; 
import javafx.stage.Stage; 

public class AccessibilityTest extends Application { 

@Override 
public void start(final Stage primaryStage) throws Exception { 
final ComboBox<String> comboBox = new ComboBox<>(); 
comboBox.getItems().setAll("a", "b", "c"); 

final Scene scene = new Scene(new StackPane(comboBox), 400, 200); 
primaryStage.setScene(scene); 
primaryStage.show(); 
} 

}