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

[Philip Race]

OK. Please push to jdk/client.

-phil.

On 8/28/20, 1:44 PM, Dmitry Markov wrote:
> Hi Phil,
>
> I ran all client test using mach5. All related test passed, see 
> https://mach5.us.oracle.com/mdash/jobs?search=id:dmarkov-jdk-client-20200828-1219-13803609
>
> Regards,
> Dmitry
>
>> On 28 Aug 2020, at 21:00, Philip Race <philip.race at oracle.com 
>> <mailto:philip.race at oracle.com>> wrote:
>>
>> Looks Ok to me but please confirm that all related tests pass.
>>
>> -phil.
>>
>> 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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