<AWT Dev> [16] RFR 8252470: java/awt/dnd/DisposeFrameOnDragCrash/DisposeFrameOnDragTest.java fails on Windows

Philip Race philip.race at oracle.com
Fri Aug 28 20:00:07 UTC 2020

Looks Ok to me but please confirm that all related tests pass.


On 8/28/20, 12:54 PM, Dmitry Markov wrote:
> Hello,
> Could you review the fix for JDK 16, please?
> bug: https://bugs.openjdk.java.net/browse/JDK-8252470
> webrev: http://cr.openjdk.java.net/~dmarkov/8252470/webrev.00/ 
> <http://cr.openjdk.java.net/%7Edmarkov/8252470/webrev.00/>
> Problem description:
> After integration of JDK-8232114 if an IME API is invoked from a DND 
> call a hang may take place.
> The DND operation runs on a toolkit thread. The IME functions should 
> be executed on the toolkit thread, as well. So if, for example, the 
> IME function is called from one of the methods of DropTargetListener 
> the corresponding IME message will be blocked in the toolkit thread 
> message queue because because the toolkit thread is busy executing DND 
> operation.
> Fix:
> If DND operation is active then we shouldn’t post the IME messages to 
> the toolkit thread queue and use SendMessage() function instead.
> Regards,
> Dmitry
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