RFR: 8334394: Race condition in Class::protectionDomain [v3]

[Chen Liang]

On Mon, 22 Jul 2024 12:42:48 GMT, Weijun Wang <weijun at openjdk.org> wrote:

>> Make sure `pd` is always the same object when `getProtectionDomain0` is null.
>
> Weijun Wang has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - var to real type
>  - rename

Marked as reviewed by liach (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/19752#pullrequestreview-2191574416