RFR: 7902989: jcstress: Add samples for high-level race conditions [v2]

[Andrew Haley]

On Thu, 1 Jul 2021 09:10:47 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Michael Mirwaldt has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   change FORBIDDEN outcomes to ACCEPTABLE_INTERESTING
>
> jcstress-samples/src/main/java/org/openjdk/jcstress/samples/high/race/condition/RaceCondition_01_ReadModifyWriteSequence.java line 2:
> 
>> 1: /*
>> 2:  * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
> 
> Here and later, the year is 2021.

It's the 2020 that never seems to end...

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PR: https://git.openjdk.java.net/jcstress/pull/88