RFR: 8316540: StoreReproducibilityTest fails on some locales [v2]

[Naoto Sato]

On Wed, 20 Sep 2023 16:12:36 GMT, Naoto Sato <naoto at openjdk.org> wrote:

>> Fixing a test case that fails in some time zones. Making sure the test is run in `UTC` zone will fix the issue. Confirmed the fix by manually setting machine's time zone to Europe/Dublin.
>
> Naoto Sato has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Reflects review comments

Thanks, Jai.
Since `assertCurrentDate()` is apart from the actual JVM invoking test method `testEmptySysPropValue()`, I thought it would be safer to use UTC in all test cases so that if someone calls `assertCurrentDate()` in other test methods, the test wouldn't break. But you are right that they are not needed in other locations right now. I removed those locations and instead added some instructions in `assertCurrentDate()` for future proof.

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PR Comment: https://git.openjdk.org/jdk/pull/15829#issuecomment-1728050059