RFR: 8331851: Add specific regression leap year tests for Calendar.roll()

[Naoto Sato]

On Wed, 15 May 2024 09:39:16 GMT, serhiysachkov <duke at openjdk.org> wrote:

> Add specific regression tests for Calendar.roll() method to explicitly various leap year test scenarios. This is inspired by the ambiguity which occurred in leap year unaware test creation as in case with Calendar.add() in swing component test case as detailed in (https://bugs.openjdk.org/browse/JDK-8327088).

LGTM. I might want to remove those test case names as they are apparent from the parameters, but it's OK.

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Marked as reviewed by naoto (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/19247#pullrequestreview-2064330497