JavaFX Accelerator using Numeric keys (Ctrl+1) not cross plateform? - javafx

Question

I have a JavaFX project that has a menu bar, and keyboard shortcuts assigned to the menu buttons. These shortcuts works fine, until I try to use the numeric keys (1234567890). I'm trying to assign shortcuts to tabs, so that Ctrl+1 selects the first tab, Ctrl+2 the second, and so on. Theses work fine on Windows, but the Ctrl+1 and Ctrl+0 shorcuts don't work on macOS, and not a single one works on Linux (Mint 21.1).
All the keyboards are french (Azerty).
I tried to override the fxml accelerator in the window controller initalizer, using KeyCode.SOFTKEY_1, DIGIT1 and AMPERSAND, but none of them work (see HelloControler.java)
In a new JavaFX project:
hello-view.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.layout.VBox?>
<?import javafx.scene.control.MenuItem?>
<?import javafx.scene.control.MenuBar?>
<?import javafx.scene.control.Menu?>
<VBox xmlns:fx="http://javafx.com/fxml" fx:controller="com.example.minrepex.HelloController">
<MenuBar fx:id="mainMenuBar">
<Menu text="Vue">
<MenuItem text="Manatee" accelerator="Ctrl+1" fx:id="button1"/>
<MenuItem text="Manatee" accelerator="Ctrl+2" fx:id="button2"/>
<MenuItem text="Manatee" accelerator="Ctrl+3" fx:id="button3"/>
<MenuItem text="Manatee" accelerator="Ctrl+4" fx:id="button4"/>
<MenuItem text="Manatee" accelerator="Ctrl+5" fx:id="button5"/>
<MenuItem text="Manatee" accelerator="Ctrl+6" fx:id="button6"/>
<MenuItem text="Manatee" accelerator="Ctrl+7" fx:id="button7"/>
<MenuItem text="Manatee" accelerator="Ctrl+8" fx:id="button8"/>
<MenuItem text="Manatee" accelerator="Ctrl+9" fx:id="button9"/>
<MenuItem text="Manatee" accelerator="Ctrl+0" fx:id="button0"/>
</Menu>
</MenuBar>
</VBox>
HelloController.java:
package com.example.minrepex;
import javafx.fxml.FXML;
import javafx.scene.control.MenuBar;
import javafx.scene.control.MenuItem;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyCodeCombination;
import javafx.scene.input.KeyCombination;
public class HelloController {
private final boolean isMacos;
#FXML private MenuBar mainMenuBar;
#FXML private MenuItem button1;
#FXML private MenuItem button2;
#FXML private MenuItem button3;
#FXML private MenuItem button4;
#FXML private MenuItem button5;
#FXML private MenuItem button6;
#FXML private MenuItem button7;
#FXML private MenuItem button8;
#FXML private MenuItem button9;
#FXML private MenuItem button0;
public HelloController() {
final String os = System.getProperty("os.name");
this.isMacos = (os != null && os.startsWith("Mac"));
}
#FXML
public void initialize() {
if (isMacos){
// Use macOS menu bar
mainMenuBar.setUseSystemMenuBar(true);
}
button1.setAccelerator(new KeyCodeCombination(KeyCode.AMPERSAND, KeyCombination.CONTROL_DOWN));
// button1.setAccelerator(new KeyCodeCombination(KeyCode.AMPERSAND, KeyCombination.CONTROL_DOWN));
// button2.setAccelerator(new KeyCodeCombination(KeyCode.AMPERSAND, KeyCombination.CONTROL_DOWN));
// button3.setAccelerator(new KeyCodeCombination(KeyCode.AMPERSAND, KeyCombination.CONTROL_DOWN));
// button4.setAccelerator(new KeyCodeCombination(KeyCode.AMPERSAND, KeyCombination.CONTROL_DOWN));
// button5.setAccelerator(new KeyCodeCombination(KeyCode.AMPERSAND, KeyCombination.CONTROL_DOWN));
// button6.setAccelerator(new KeyCodeCombination(KeyCode.AMPERSAND, KeyCombination.CONTROL_DOWN));
// button7.setAccelerator(new KeyCodeCombination(KeyCode.AMPERSAND, KeyCombination.CONTROL_DOWN));
// button8.setAccelerator(new KeyCodeCombination(KeyCode.AMPERSAND, KeyCombination.CONTROL_DOWN));
// button9.setAccelerator(new KeyCodeCombination(KeyCode.AMPERSAND, KeyCombination.CONTROL_DOWN));
// button0.setAccelerator(new KeyCodeCombination(KeyCode.AMPERSAND, KeyCombination.CONTROL_DOWN));
}
}
HelloApplication.java (app)
package com.example.minrepex;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.stage.Stage;
import java.io.IOException;
public class HelloApplication extends Application {
#Override
public void start(Stage stage) throws IOException {
FXMLLoader fxmlLoader = new FXMLLoader(HelloApplication.class.getResource("hello-view.fxml"));
Scene scene = new Scene(fxmlLoader.load(), 320, 240);
stage.setTitle("Hello!");
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
launch();
}
}
Main.java
package com.example.minrepex;
public class Main {
public static void main(String[] args) {
HelloApplication.main(args);
}
}
What is going on ?