RFR: 8302354: InstanceKlasss init state/thread should be atomic

[Coleen Phillimore]

On Mon, 13 Feb 2023 18:56:19 GMT, Robbin Ehn <rehn at openjdk.org> wrote:

> Hi, please consider.
> 
> These states are read 'lock-less' should thus be atomic.
> Also the assert setting init thread state can be stricter.
> 
> Passes t1-4

This looks good but can you edit the bug and PR to not have so many 'sss' in InstanceKlass ?

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Marked as reviewed by coleenp (Reviewer).

PR: https://git.openjdk.org/jdk/pull/12542