[jdk17u-dev] RFR: 8277946: NMT: Remove VM.native_memory shutdown jcmd command option

[Thomas Stuefe]

On Wed, 25 Jan 2023 13:50:32 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

> Hi all,
> 
> This is *not* a clean downport. The upstream variant in JDK 18 outright removes the NMT shutdown dcmd option. For JDK 17, I leave it in but deprecate it and stub it out. See associated CSR backport: https://bugs.openjdk.org/browse/JDK-8299848 
> 
> Original issue: https://bugs.openjdk.org/browse/JDK-8277946
> Original CSR: https://bugs.openjdk.org/browse/JDK-8277947
> Backport CSR: https://bugs.openjdk.org/browse/JDK-8299848
> Backport Issue: https://bugs.openjdk.org/browse/JDK-8299846
> 
> 
> Differences to original CSR:
> 
> The original CSR was about removing the sub-option. That was fine for a head release.
> 
> This CSR, aimed at a maintenance release, proposes to deprecate it instead:
> 
>     jcmd would still accept the "shutdown" sub option and return 0 as exit code.
>     But jcmd should report "This option has been deprecated" instead of "NMT is shutting down"
> 
> 
>     Thanks!

Test errors unrelated.

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PR: https://git.openjdk.org/jdk17u-dev/pull/1112