RFR: 8309602: update JVMTI history table for jdk 21 [v2]

[Alan Bateman]

On Wed, 7 Jun 2023 12:57:34 GMT, Serguei Spitsyn <sspitsyn at openjdk.org> wrote:

>> This is a minor update of the `jvmti.xml` file.
>> The JVM TI history table needs to be updated to list:
>>  - Virtual threads finalized to be a permanent feature.
>>  - Agent start-up in the live phase now specified to print a warning.
>> 
>> The JVM TI history table is maintained for convenience only and does not require a CSR.
>
> Serguei Spitsyn has updated the pull request incrementally with one additional commit since the last revision:
> 
>   review: simplified the latest history entries

A small suggestion for the 19.0.0 note, otherwise good.

src/hotspot/share/prims/jvmti.xml line 15459:

> 15457:   </change>
> 15458:   <change date="27 April 2022" version="19.0.0">
> 15459:       Preview feature - Support for virtual threads:

Maybe "Support for virtual threads as preview feature" or "Support for Virtual Threads (Preview)".

src/hotspot/share/prims/jvmti.xml line 15474:

> 15472:       Virtual threads finalized to be a permanent feature.
> 15473:       Agent start-up in the live phase now specified to print a warning.
> 15474:   </change>

This is just the history text, no normative changes, shouldn't need a CSR.

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Marked as reviewed by alanb (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/14352#pullrequestreview-1467588938
PR Review Comment: https://git.openjdk.org/jdk/pull/14352#discussion_r1221548406
PR Review Comment: https://git.openjdk.org/jdk/pull/14352#discussion_r1221549609