RFR: 8325679: Optimize ArrayList subList sort

[Jim Laskey]

On Mon, 12 Feb 2024 22:52:51 GMT, Attila Szegedi <attila at openjdk.org> wrote:

> Somewhat surprisingly, `ArrayList$Sublist.sort()` is not specialized and will thus fall back to slower default method of `List.sort()` instead of sorting a range of the array in-place in its backing root `ArrayList`. 
> 
> This doesn't change observable behavior, so haven't added tests, and `tier1` tests still all pass except for `test/jdk/java/util/Locale/LocaleProvidersFormat.java` which also currently fails on master too on the machine I tested on.

Been there since day one?

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PR Comment: https://git.openjdk.org/jdk/pull/17818#issuecomment-1939788165