<AWT Dev> <Awt Dev> [9] Review Request for 8132664: closed/javax/swing/DataTransfer/DefaultNoDrop/DefaultNoDrop.java locks on Windows

Semyon Sadetsky semyon.sadetsky at oracle.com
Tue Aug 4 11:54:23 UTC 2015

On 8/3/2015 6:05 PM, Sergey Bylokhov wrote:
> Hi, Semyon
> Did you try to change dwMilliseconds from INFINITE to the timeout(10 
> seconds by default?) which is passed to the method? It does not help? 
> Because even when dnd is not used we should not wait event for 
> infinite time.
It would not help to fix the issue because 10 seconds is too big 
interval. But for consistency it is not bad to have a time limit.

> On 03.08.15 17:26, Semyon Sadetsky wrote:
>> Hello,
>> Please review fix for JDK9:
>> bug: https://bugs.openjdk.java.net/browse/JDK-8132664
>> webrev: http://cr.openjdk.java.net/~ssadetsky/8132664/webrev.00/
>> DoDragDrop() is blocking, so upon drag operation is triggered the 
>> toolkit thread is blocked and the WM_AWT_WAIT cannot be processed 
>> which in its turn blocks the AWT robot.
>> The solution is to escape AWT robot waiting in syncNativeQueue() if 
>> drag operation is in progress.
>> --Semyon

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