[jdk22u] RFR: 8325587: Shenandoah: ShenandoahLock should allow blocking in VM

[Liang Mao]

On Fri, 10 May 2024 07:33:03 GMT, Liang Mao <lmao at openjdk.org> wrote:

> Clean backport of fixing rare long hand shake while mutator threads in heavy contention on ShenandoahLock.

@shipilev ，shall I integrate this into 22u?

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PR Comment: https://git.openjdk.org/jdk22u/pull/192#issuecomment-2120085913