ADDITIONAL SYSTEM INFORMATION :
Only appears on Windows systems even my system local is in French

A DESCRIPTION OF THE PROBLEM :
Non-ASCII characters passed as arguments to the native launcher do not match those transmitted to the JVM.
Example of an argument with french chars:
$ app.exe mypath/élément.txt
JVM args => mypath/élément.txt

Therefore it is not possible to open files with non-ASCII characters by associating a mime type to the application.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1) Create a class FooClient.java, fill with the content below.
2) Add module-info.java:
module app {
    requires java.desktop;
}

3) Build app.jar
4) Build an installer: jpackage -n app -p C:\Users\myjarpath\target -m app/org.test.FooClient
5) Install app-1.0.exe
6) From cmd, run: app.exe mypath/élément.txt

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Result in JFrame: mypath/élément.txt
ACTUAL -
Result in JFrame: mypath/élément.txt

---------- BEGIN SOURCE ----------
package org.test;

import java.awt.BorderLayout;

import javax.swing.*;

public class FooClient {

    public static void main(String[] args) {
        javax.swing.SwingUtilities.invokeLater(() -> {
            JFrame frame = new JFrame("Test non ascii chars through args");
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            JPanel panel = new JPanel();
            BoxLayout boxLayout = new BoxLayout(panel, BoxLayout.Y_AXIS);
            panel.setLayout(boxLayout);
            
            for (int i = 0; i < args.length; i++) {
                JLabel jLabel = new JLabel(args[i]);
                panel.add(jLabel);
            }
            frame.getContentPane().add(panel, BorderLayout.CENTER);
            frame.pack();
            frame.toFront();
            frame.setVisible(true);
        });
    }
}
---------- END SOURCE ----------

FREQUENCY : always