RFR: 8283279: [Testbug] Improve TestGetSwapSpaceSize [v2]

[Severin Gehwolf]

On Wed, 23 Mar 2022 09:27:07 GMT, Severin Gehwolf <sgehwolf at openjdk.org> wrote:

>> Please review this container test improvement. The test in question only makes sense iff the total swap space size as reported by the container aware OperatingSystemMXBean is `0`. If that's not the case, then something else might be amiss, e.g. OperatingSystemMXBean reporting the host swap limits. In such a case a passing test tells us nothing. Certainly not if the
>> fix from [JDK-8242480](https://bugs.openjdk.java.net/browse/JDK-8242480) is present or not.
>> 
>> Testing:
>> - [x] Manual with and without the code fix of JDK-8242480. Still passes with the fix, and fails without. Tested the test on cgroups v1 and cgroups v2.
>
> Severin Gehwolf has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:
> 
>  - Incorporate review feedback
>  - Merge branch 'master' into test_getswapspace_improvement_8283279
>  - 8283279: [Testbug] Improve TestGetSwapSpaceSize

Thanks for the review!

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PR: https://git.openjdk.java.net/jdk/pull/7854