RFR: 8268469: Update java.time to use switch expressions [v3]

[Chris Hegarty]

On Wed, 16 Jun 2021 10:59:59 GMT, Stephen Colebourne <scolebourne at openjdk.org> wrote:

>> Patrick Concannon 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 four additional commits since the last revision:
>> 
>>  - 8268469: Removed excessive spacing; corrected misplaced comments
>>  - Merge remote-tracking branch 'origin/master' into JDK-8268469
>>  - Merge remote-tracking branch 'origin/master' into JDK-8268469
>>  - 8268469: Update java.time to use switch expressions
>
> src/java.base/share/classes/java/time/Month.java line 480:
> 
>> 478:         int leap = leapYear ? 1 : 0;
>> 479:         return switch (this) {
>> 480:             case JANUARY   -> 1;
> 
> Unnecessary alignment

The vertical alignment improves readability in these short-line cases. Removing the spaces before the arrows will make it a little harder to discern the difference between the cases.

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PR: https://git.openjdk.java.net/jdk/pull/4433