<i18n dev> RFR: 8346944: Update Unicode Data Files to 17.0.0 [v2]

[Joe Wang]

On Mon, 17 Nov 2025 19:15:50 GMT, Naoto Sato <naoto at openjdk.org> wrote:

>> Updates the JDK to use the latest Unicode 17.0.0, which also updates the ICU4J along with it ([8346947](https://bugs.openjdk.org/browse/JDK-8346947)
>> Update ICU4J to Version 78.1). The corresponding CSR has already been approved.
>
> Naoto Sato 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 11 additional commits since the last revision:
> 
>  - Merge branch 'master' into JDK-8346944-Unicode-17
>  - icudata path fix
>  - Update versions
>  - icu4j final
>  - .md file changes
>  - 17.0 final
>  - icudata78b(binary)
>  - CaseFolding.text -> 17, copyright symbol as is
>  - icudt78b
>  - 17-beta
>  - ... and 1 more: https://git.openjdk.org/jdk/compare/2b28d8c0...088cdaea

LGTM.

src/java.base/share/classes/jdk/internal/icu/util/VersionInfo.java line 57:

> 55:      */
> 56:     @Deprecated
> 57:     public static final String ICU_DATA_VERSION_PATH = "78b";

Now with fixed path "icudata", this seems to be no longer used.

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Marked as reviewed by joehw (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/28093#pullrequestreview-3475474397
PR Review Comment: https://git.openjdk.org/jdk/pull/28093#discussion_r2536321176