RFR: 7904027: JOL: Add test cases for ZGC and object alignments [v2]

[Anton Rybochkin]

On Fri, 6 Jun 2025 16:01:44 GMT, Anton Rybochkin <duke at openjdk.org> wrote:

>> This test reveals incorrect object alignment detection when using generational ZGC which results in high object size reported (512k on aarch64 and 64k otherwise)
>
> Anton Rybochkin has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fixed default alignment on 32-bit platforms

> > Yes, they illustrate incorrect object alignment calculation in generational ZGC
> 
> OK, so we cannot really integrate without the fix? I am trying to see whether there is a path to always green tests. Is #65 fixing it?

Yes, #65 must fix it

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PR Comment: https://git.openjdk.org/jol/pull/64#issuecomment-2949753913