RFR: 8288532: additional review changes for JDK-8286830 [v3]

[Daniel D. Daugherty]

On Fri, 17 Jun 2022 21:43:50 GMT, Daniel D. Daugherty <dcubed at openjdk.org> wrote:

>> Update a couple of tests that were modified by JDK-8286830. Now the tests properly
>> honor any specified time limit by splitting the time between both sub-tests.
>> Also pick up a sanity check based on JDK-8288497 that I've been using in recent
>> stress testing.
>
> Daniel D. Daugherty has updated the pull request incrementally with one additional commit since the last revision:
> 
>   VMThread can get to check in AsyncExceptionHandshake() dtr via a bailout.

The Mach5 Tier8 run had no failures. All testing looks great.

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PR: https://git.openjdk.org/jdk19/pull/32