RFR: 8338428: Print final VM flags for task [v2]

[David Holmes]

On Sun, 12 Jan 2025 15:47:15 GMT, Leonid Mesnik <lmesnik at openjdk.org> wrote:

>> Some VM flags might depend on the environment and it makes sense to log final flags so it is possible to get their value when investigating failures.
>> 
>> I added them to VMProps, so it is always dump final flags before running tests using "-XX:+PrintFlagsFinal".
>> 
>> Update:
>> There were intermittent compilation failures when I tried to use classes from testlibrary, so I rewrtite the code without them.
>
> Leonid Mesnik has updated the pull request incrementally with one additional commit since the last revision:
> 
>   The test lib is not ued

Does this mean that the execution of every single test must now first exec a new VM and use it to dump the flags?

And where does this output go?

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PR Comment: https://git.openjdk.org/jdk/pull/23054#issuecomment-2586078059