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).
------------- Commit messages: - JDK-8331851 Add specific regression leap year tests for Calendar.roll() Changes: https://git.openjdk.org/jdk/pull/19247/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19247&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8331851 Stats: 190 lines in 1 file changed: 190 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/19247.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/19247/head:pull/19247 PR: https://git.openjdk.org/jdk/pull/19247
