RFR: 8309748: Improve host selection in `External Specifications` page [v3]

[Nizar Benalla]

On Thu, 19 Feb 2026 07:59:52 GMT, Hannes Wallnöfer <hannesw at openjdk.org> wrote:

>> Please review a change to improve selection by host name in the External Specifications page. After trying a list of checkboxes as used in the API summary pages and finding it not a suitable solution, I found that a select/dropdown menu works best for this page. 
>> 
>>  - [New external specs page](https://cr.openjdk.org/~hannesw/8309748/api.00/external-specs.html)
>>  - [Old external specs page](https://docs.oracle.com/en/java/javase/25/docs/api/external-specs.html) for comparsion
>> 
>> I also updated `@spec` tags in `java.lang.Character` to point to `www.unicode.org` rather than `unicode.org` to avoid a  `unicode.org` entry in the host list (other `@spec` tags use the `www.unicode.org` host name). The short `unicode.org` URL is still used elsewhere in the `java.lang.Character` class, I can update those links to the canonical host name as well if desired.
>
> Hannes Wallnöfer has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update copyright headers

Looks good.

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Marked as reviewed by nbenalla (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/28863#pullrequestreview-3862871362