RFR: 8326718: Test java/util/Formatter/Padding.java should timeout on large inputs before fix in JDK-8299677 [v3]

[Raffaello Giulietti]

On Tue, 5 Mar 2024 23:00:16 GMT, Chad Rakoczy <duke at openjdk.org> wrote:

>> [JDK-8299677](https://bugs.openjdk.java.net/browse/JDK-8299677) fixes a bug with Formatter.format taking a long time when there is a lot of padding. This test runs Formatter.format with very large padding. Test fails before [JDK-8299677](https://bugs.openjdk.java.net/browse/JDK-8299677) and passes after.
>> 
>> Timeout for the test was set to 10 seconds. Test passes locally with as low as 1 (after [JDK-8299677](https://bugs.openjdk.java.net/browse/JDK-8299677)) and fails as high as 120 (before [JDK-8299677](https://bugs.openjdk.java.net/browse/JDK-8299677)) so it should be consistent.
>
> Chad Rakoczy has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Add underscores to large number

Marked as reviewed by rgiulietti (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/18033#pullrequestreview-1920152315