The application given below exhibits differing behavior on Solaris
and NT 4.0.

On Solaris, the FileDialog that the application displays blocks the
whole application (the FileDialog's parent frame as well as the
application's frame), while on WinNT, it blocks only the FileDialog's
parent frame.

To recreate, start the application, and:
- Click on the "Show Frame" button in the application's frame; this will
  display a frame ("My Frame") with 2 buttons
- Click on the "Show File Dialog" button in "My Frame"; this will
  display a file dialog whose parent frame is "My Frame"

At this point, on Solaris, both "My Frame" and the application's frame
get blocked.
On WinNT, only "My Frame" gets blocked.

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/* FileDialogDisplayer.java
 * Displays a file dialog
 */

import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;

public class FileDialogDisplayer extends Applet implements ActionListener
{
  static Frame theFrame = new Frame("FileDialog Displayer");
  static FileDialog filedialog;
  Button showfrmButton = new Button("Show Frame");
  Button showfdButton = new Button("Show File Dialog");
  Button button1 = new Button("button1");
  Button button2 = new Button("button2");
  MyFrame myframe = new MyFrame();

  public FileDialogDisplayer() {
      filedialog = new FileDialog(myframe);
      theFrame.setSize(200, 200);
      setLayout(new FlowLayout());
      add(showfrmButton);
      add(button1);
      showfrmButton.addActionListener(this);
      button1.addActionListener(this);
  }

  public void actionPerformed(ActionEvent e) {
      if (e.getActionCommand() == "Show Frame")
        myframe.setVisible(true);
      else if (e.getActionCommand() == "button1")
        System.out.println("button1 clicked");
      else { }
  }

  public static void main(String s[]) {
      FileDialogDisplayer displayer = new FileDialogDisplayer();
      theFrame.add("Center", displayer);
      theFrame.pack();
      theFrame.setSize(200, 200);
      theFrame.show();
      theFrame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
if (filedialog != null)
         filedialog.dispose();
       theFrame.dispose();
       System.exit(0);
   }
public void windowClosed(WindowEvent e) {
       if (filedialog != null)
         filedialog.dispose();
       theFrame.dispose();
   }
      });
  }

  public void start() {}
  public void stop() {}
  public void destroy() {}

  class MyFrame extends Frame {
MyFrame() {
super("My Frame");
setLayout(new FlowLayout());
add(showfdButton);
add(button2);
pack();
setSize(200, 100);
showfdButton.addActionListener(new aListener());
button2.addActionListener(new aListener());
}
  }

  class aListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
          if (e.getActionCommand() == "Show File Dialog")
            filedialog.setVisible(true);
          else if (e.getActionCommand() == "button2")
            System.out.println("button2 clicked");
          else { }
        }
  }
}


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