<i18n dev> RFR: 8307547: Support for multiple collations for a locale [v2]

[Alan Bateman]

On Wed, 10 May 2023 20:28:11 GMT, Naoto Sato <naoto at openjdk.org> wrote:

>> The fix to https://bugs.openjdk.org/browse/JDK-8306927 switched the default collation for Swedish to the modern one. In order to provide a means for users who need the old collation, this PR intends to make `Collator` recognize the `co` Unicode locale extension so that multiple implementations for a locale can be provided. I would also like reviews for the corresponding CSR.
>
> Naoto Sato has updated the pull request incrementally with one additional commit since the last revision:
> 
>   http -> https

src/java.base/share/classes/java/text/Collator.java line 131:

> 129:  * </blockquote>
> 130:  * may return a {@code Collator} instance with the traditional sorting, which
> 131:  * gives 'v' and 'w' the same sorting order.

The overall intent and wording looks okay but I wonder if it should be in the getInstance methods instead. Also wondering whether impNote is right because it's both informational for developers using the API and useful to implementors.

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PR Review Comment: https://git.openjdk.org/jdk/pull/13917#discussion_r1190915577