JFileChooser crashes JVM - bug basically ignored. What can I do?

Question

See:
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7160713
The bug has been marked as incomplete,needs more info, and "Low Prioroty" - Yet there is no mechanism to provide any more information. There is no way to add comments, or vote. The bug brings down the entire JVM with a native crash and it is trivial to reproduce.
I would provide any information that is asked of me - but I need a way to do it. I think I got an email request for info (It's been a while now), but replies to the email bounced, and as noted above the bug page has no way to give feedback.
Use any JFileChooser, click on the "Details" view. Then start clicking on column headings... after a few clicks the JVM crashes. Tested again with 7u6 - still crashes.

Answer 1

This reproduces the problem more reliably for me.
* JFileChooser Windows Crash
package filechoosercrash;
import java.awt.AWTEvent;
import java.awt.BorderLayout;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.Window;
import java.awt.event.AWTEventListener;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.util.concurrent.CountDownLatch;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.LookAndFeel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UIManager.LookAndFeelInfo;
import javax.swing.UnsupportedLookAndFeelException;
* @author scott
public class FileChooserCrash {
     static CountDownLatch latch = new CountDownLatch(1);
     static JFrame frame;
     static JButton button;
     static JFileChooser chooser;
     static Robot robot;
     private static AWTEventListener terminator = new AWTEventListener() {
          @Override
          public void eventDispatched(AWTEvent event) {
               System.exit(10);
      * @param args the command line arguments
     public static void main(final String[] args) throws Exception {
          SwingUtilities.invokeLater(new Runnable() {
               @Override
               public void run() {
                    try {
                         swingMain(args);
                    } catch (Exception ex) {
                         Logger.getLogger(FileChooserCrash.class.getName()).log(Level.SEVERE, null, ex);
          latch.await();
          // do the clicks
          sleep(3000);
          Toolkit.getDefaultToolkit().addAWTEventListener(terminator, AWTEvent.KEY_EVENT_MASK);
          long now = System.currentTimeMillis();
          for (int c = 0; c < 10; c++) {
               Window w = JDialog.getWindows()[1]; // better be there!
               System.out.println("w=" + w);
               int detailsX = w.getX() + w.getWidth() - 36;
               int detailY = w.getY() + 50;
               int headingY = w.getY() + 100;
               System.out.println("details at " + detailsX + ", " + detailY);
               // Click details
               robot.mouseMove(detailsX, detailY);
               clickMouse();
               sleep(100);
               // Click column headings
               while (System.currentTimeMillis() - now < 2 * 1000) {
                    int headingX = w.getX() + (w.getWidth()/2) + (int) (Math.random() * (w.getWidth()/2));
                    robot.mouseMove(headingX, headingY);
                    clickMouse();
                    sleep(300);
               // Cancel
               robot.mouseMove(w.getX() + w.getWidth() - 36, w.getY() + w.getHeight() - 36);
               clickMouse();
               sleep(300);
               // re-open
               robot.mouseMove(frame.getX() + 36, frame.getY() + 36);
               clickMouse();
               sleep(1000);
               now = System.currentTimeMillis();
     private static void sleep(int millis) {
          try {
               Thread.sleep(millis);
          } catch (InterruptedException ex) {
     private static void clickMouse() {
          robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
          sleep(100);
          robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
     private static void swingMain(String[] args) throws Exception {
          //switchToNimbus();
          robot = new Robot();
          frame = new JFrame("JFileChooser Crash Test");
          button = new JButton("Start...");
          button.addActionListener(new ActionListener() {
               @Override
               public void actionPerformed(ActionEvent e) {
                    showFileChooser(frame);
          frame.getContentPane().add(button, BorderLayout.CENTER);
          frame.getContentPane().add(new JLabel("Press \"Start...\" and let go of the mouse.  Robot will be used to change FileChooser to details view and then quickly click column headings until the crash."), BorderLayout.SOUTH);
          frame.pack();
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setVisible(true);
     static void showFileChooser(JFrame parent) {
          chooser = new JFileChooser("C:\\");
          latch.countDown();
          chooser.showOpenDialog(parent);
     private static void switchToNimbus() throws UnsupportedLookAndFeelException, IllegalAccessException, InstantiationException, ClassNotFoundException {
          for (LookAndFeelInfo laf : UIManager.getInstalledLookAndFeels()) {
               if (laf.getName().startsWith("Nimbus")) {
                    System.out.println("Using " + laf.getName());
                    UIManager.setLookAndFeel(laf.getClassName());
                    break;
}