Win32 only: Pressing OK, or Cancel in File Browser Dialog crashes.

Steps to reproduce
Compile and run the following code
Select File | Save from the menu
Press <Cancel>
// Note: or enter a file name and press OK

/* File Save Test
 * @author Kevin A. Smith
 */

import java.awt.*;

class FileSaveTest extends AppFrame
{

    public String sFileName = "";

    public static void main(String args[])
    {
       Frame f = new FileSaveTest("File Save test");
       f.show();
    }

    FileSaveTest(String name)
    {
       super(name);
       MenuBar menuBar = new MenuBar();
       Menu fileMenu = new Menu("File");
       fileMenu.add(new MenuItem("Save"));
       fileMenu.addSeparator();
       fileMenu.add(new MenuItem("Exit"));
       menuBar.add(fileMenu);
       setMenuBar(menuBar);

       resize(200, 200);
    }
    
    public boolean action(Event evt, Object obj)
    {
       if(evt.target instanceof MenuItem)
          return menuEvent(evt, obj);
       else
          return super.action(evt, obj);
    }

    public boolean menuEvent(Event evt, Object obj)
    {
       String label = obj.toString();

       if (label.equals("Save") )
       {
          FileDialog saveFD = new FileDialog(this,
                                             "File Save As",
                                             FileDialog.SAVE);
          saveFD.show();
          //sFileName = saveFD.getFile();
          repaint();
          return true;
       }
       else if( label.equals("Exit") )
       {
          postEvent(new Event(this, Event.WINDOW_DESTROY, null) );
          return true;
       }

       else
          return false;

    } // end menuEvent()

    public void paint(Graphics g)
    {
       Rectangle bounds = bounds();
       FontMetrics fm = g.getFontMetrics( g.getFont() );
       g.drawString(sFileName,
                    ( ( bounds.width - fm.stringWidth(sFileName) ) / 2),
                    ( ( bounds.height - fm.getHeight() ) / 2 ) );
    }
}

/* Generic Application Frame
 * @(#)AppFrame.java 1.2 08 Nov 1995 10:00:20
 * @author Kevin A. Smith
 */

import java.awt.Frame;
import java.awt.Event;

// Application Frame window
class AppFrame extends Frame
{
    // constructor needed to pass window title to class Frame
    public AppFrame(String name)
    {
       // call java.awt.Frame(String) constructor
       super(name);
    }

    // needed to allow window close
    public boolean handleEvent(Event e)
    {
       // Window Destroy event
       if (e.id == Event.WINDOW_DESTROY)
       {
          // exit the program
          System.exit(0);
          return true;
       }
       
       // it's good form to let the super class look at any
       // unhandled events
       return super.handleEvent(e);

    } // end handleEvent()
}