RFR: 7902982: jcstress: Add samples for some mutex algorithms [v8]

[Michael Mirwaldt]

On Tue, 29 Jun 2021 14:59:09 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> mmirwaldt for openjdk has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   replaced approach with taken1 and taken2 by the approach of using non atomic int increments
>
> jcstress-samples/src/main/java/org/openjdk/jcstress/samples/concurreny/mutex/Mutex_01_NoAlgorithm.java line 55:
> 
>> 53:  */
>> 54: @JCStressTest
>> 55: @Outcome(expect = ACCEPTABLE, desc = "Both actors have entered the critical section whenever they wanted")
> 
> Here and later, let's list the outcomes, though, in case there are some completely surprising ones:
> 
> 
> @Outcome(id = {"1, 2", "2, 1"}, expect = ACCEPTABLE, desc = "Sequential execution.")
> @Outcome(id = "1, 1", expect = ACCEPTABLE_INTERESTING, desc = "Both actors came up with the same value: lock failure.")

Done

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PR: https://git.openjdk.java.net/jcstress/pull/85