RFR: 8289003: JavaThread::check_is_terminated() implementation should rely on Thread-SMR

[Daniel D. Daugherty]

On Fri, 15 Jul 2022 06:08:43 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> A small fix to change `JavaThread::check_is_terminated()` to rely on Thread-SMR.
>> The change is textually trivial, but requires a bit of thinking about the JavaThread
>> lifecycle. Since this is a cleanup of some old Thread-SMR related changes, I also
>> took the time to cleanup some comments and white space while I was visiting the
>> uses of `_vm_exited`.
>> 
>> Mach5 Tier1 has no related failures. Mach5 Tier[23] testing has just started.
>
> Looks fine.
> 
> Thanks,
> David

@dholmes-ora - Thanks for the review and for catching the typo. Will fix shortly.
Got hit by a thunderstorm last night so I'm still trying to figure out what all got fried...

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PR: https://git.openjdk.org/jdk/pull/9502