98333 - open file dialog in java freezes mozilla UI

Status: RESOLVED WORKSFORME

(Core Graveyard :: Java: OJI, defect)

Description

[jeremy.m]

From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0)
BuildID:    2001090408

Opening a file dialog from A Java Applet will freeze the user interface for 
mozilla browser window.  Only way of killing browser is with cntrl-alt-del.

Code for Applet that demonstrates the problem:

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


public class MozillaTest extends Applet implements ActionListener
{
    Button openFileBut, beepBut;
    Label output;
    Frame f;

    /**Construct the applet*/
    public MozillaTest()
    {
    }

    /**Initialize the applet*/
    public void init()
    {
        f = new Frame();

       openFileBut = new Button( "Open File");
       openFileBut.addActionListener(this);

       beepBut = new Button( "I Beep Therefore I am");
       beepBut.addActionListener(this);

       add( openFileBut );
       add( beepBut );
    }

    public void actionPerformed(ActionEvent e)
    {
        String cmd = e.getActionCommand();

        if( cmd == "I Beep Therefore I am" )
            Toolkit.getDefaultToolkit().beep();
        else if( cmd == "Open File" )
            doOpenFile();
    }

    private void p( String s )
    {
        System.out.println(s);
    }

    private void doOpenFile()
    {
        try
        {
            FileDialog fd = new FileDialog( f );
            fd.setModal(true);
            fd.setVisible(true);
        }
        catch( Exception e )
        {
            p( "Couldn't Open file because of: " + e  );
        }
    }

}

Reproducible: Always
Steps to Reproduce:
1.Open Applet In Browser.
2.Click Open File button.
3.Click Cancel in file Dialog
4.Observe Locked up Mozilla

Actual Results:  Mozilla UI frozen.

Comment 1

[sairuh (rarely reading bugmail)]

->oji?

Comment 2

[Patty Mac]

Humm...it works fine on windows 2000 (commercial trunk: 2001-09-05-10-trunk)
that I follow the 'steps to reproduce'.

Comment 3

[jeremy.m]

Checked again with build 2001090703 under win2K, behaviour persists.

Comment 4

[edburns]

I can't reproduce this on WinNT.

Comment 5

[edburns]

Attachment: tar.gz of test case, compiled

Comment 6

[edburns]

I've asked our QA to test it.

Comment 7

[Oleg Khokhlov]

My results.
On Win2000 5.00.2195:
Mozilla 0.9.3 with JDK 1.3.1 and 1.4; Build 2001091303 with JDK 1.3.1 and 1.4;
Applet works and mozilla doesn't freeze.
But I can't type anything in the address bar after pressing 'Cancel' button.
I need to switch to another window and back to mozilla in order to type again.