RFR: 8273300: Check Mutex ranking during a safepoint [v3]

[Coleen Phillimore]

On Mon, 13 Sep 2021 15:12:51 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> src/hotspot/share/memory/universe.cpp line 125:
>> 
>>> 123: LatestMethodCache* Universe::_do_stack_walk_cache     = NULL;
>>> 124: 
>>> 125: long Universe::verify_flags                           = Universe::Verify_All;
>> 
>> This cleanup seems completely unrelated to your mutex change and is best left to a separate cleanup RFE.
>
> I could do it in a trivial other RFE.

Done.

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PR: https://git.openjdk.java.net/jdk/pull/5467