[OpenJDK 2D-Dev] [9] Review Request: 8028486 java/awt/Window/WindowsLeak/WindowsLeak.java fails

Anton Tarasov anton.tarasov at jetbrains.com
Tue May 31 16:04:06 UTC 2016

Hi Sergey,

Would you mind backporting the fix to jdk8u?


On 5/2/2016 11:26 PM, Sergey Bylokhov wrote:
> Hello,
> Please review the fix for jdk9.
> Bug evaluation was done by Anton:
> http://mail.openjdk.java.net/pipermail/awt-dev/2016-April/011177.html
> This is a cross-platform bug it affects d3d/ogl pipelines. The problem 
> is that BufferedContex cached information to skip some native 
> reconfigurations. But this cache cause a memory leak if some 
> data(src/dst surfaces) was cached and there was no new rendering in 
> this context(we create context per-d3d_device/ogl_config).
> In the fix I changed all these caches to weak references. Note that i 
> use a references as initial values instead of null, just to eliminate 
> the null checks in the body of the method.
> The test was updated to be more stable(flushed the EDT + flushed the 
> Disposer thread).
> Bug: https://bugs.openjdk.java.net/browse/JDK-8028486
> Webrev can be found at: 
> http://cr.openjdk.java.net/~serb/8028486/webrev.00

More information about the 2d-dev mailing list