Run the provided test, click the button

Acutal: focused window goes to bottom
Expected: Windows Z-order remains the same

Reproducible on Windows, not reproducible on Solaris

import java.awt.*;
import java.awt.event.*;

public class AwtTest {
    public static void main(String[] args) {
        final Frame frame1 = new Frame("Frame 1");
        frame1.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
        Frame frame2 = new Frame("Frame 2");
        final Window w = new Window(frame1);
        w.add(new Button("Window is here"));
        w.pack();
        Button comp = new Button("Click me");
        comp.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                w.setVisible(false);
                w.setVisible(true);
            }
        });
        frame2.add(comp);
        frame2.pack();
        frame1.setSize(100,100);
        frame1.setVisible(true);
        frame1.setLocationRelativeTo(null);
        frame2.setLocation(frame1.getX() + 50, frame1.getY());
        w.setLocation(frame1.getX(), frame1.getY() - 50);
        frame2.setVisible(true);
    }
}