<AWT Dev> [9] Review request for JDK-8046391: Hang displaying JFileChooser with Windows L&F

[Sergey Bylokhov]

This fix is identical to JDK-8042590, which was fixed in cpu workspace.
I guess the push under the new bugid will lead to integration problems 
in case of merge.

On 6/10/14 7:21 PM, Alexey Ivanov wrote:
> Hello AWT team,
>
> Could you please review the fix for bug:
>     bug: https://bugs.openjdk.java.net/browse/JDK-8046391
>     webrev: http://cr.openjdk.java.net/~aivanov/8046391/jdk9/webrev.01/
>
> Description:
> The fix for JDK-8039383 "NPE when changing Windows Theme" caused a 
> regression where JFileChooser hung. The root cause is the deadlock 
> between Windows Toolkit thread and AWT Event Queue which is caused by 
> the fact that ThemeReader.flush() is called on the toolkit thread.
>
> The fix:
> Modify ThemeReader so that flush() does not do the real work but marks 
> the current state as invalid. The old theme data are removed when 
> getTheme() is called which is done only from an Event Dispatch thread.
>
> Regards,
> Alexey.


-- 
Best regards, Sergey.