[8u] RFR 8202788: Explicitly reclaim cached thread-local direct buffers at thread exit

[Zhengyu Gu]

Thanks, Paul.

Will backport the followup once this is in.

-Zhengyu

On 8/5/21 1:12 PM, Hohensee, Paul wrote:
> Lgtm. There's a follow-on for this patch that should also be backported, JDK-8205540. It applies cleanly after JDK-8202788.
> 
> Thanks,
> Paul
> 
> -----Original Message-----
> From: jdk8u-dev <jdk8u-dev-retn at openjdk.java.net> on behalf of Zhengyu Gu <zgu at redhat.com>
> Date: Wednesday, August 4, 2021 at 12:09 PM
> To: jdk8u-dev <jdk8u-dev at openjdk.java.net>
> Subject: [8u] RFR 8202788: Explicitly reclaim cached thread-local direct buffers at thread exit
> 
> I would like to backport this patch to openjdk8u for parity with Oracle
> 8u321.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8202788
> Patch: http://hg.openjdk.java.net/jdk/jdk/rev/106dc156ce6b
> 
> The patch does not apply cleanly.
> 
> - Fixed instantiating generic classes due to inferring type arguments
> - NativeBuffer does not have free() method, replaced with
> buffer.cleaner().clean()
> - Conflicts on imports in NativeBuffers.java and Util.java
> 
> 8u webrev: http://cr.openjdk.java.net/~zgu/JDK-8202788-8u/webrev.00
> 
> Test:
>     Passed all three tests in patch.
> 
> Thanks,
> 
> -Zhengyu
> 
>