RFR: 8364007: Add no-argument codePointCount method to CharSequence and String [v11]

[Tatsunori Uchino]

On Wed, 28 Jan 2026 23:40:14 GMT, Tatsunori Uchino <duke at openjdk.org> wrote:

>> Adds `codePointCount()` overloads to `String`, `Character`, `(Abstract)StringBuilder`, and `StringBuffer` to make it possible to conveniently retrieve the length of a string as code points without extra boundary checks.
>> 
>> 
>> if (superTremendouslyLongExpressionYieldingAString().codePointCount() > limit) {
>>     throw new Exception("exceeding length");
>> }
>> 
>> 
>> Is a CSR required to this change?
>
> Tatsunori Uchino has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update year in copyright

"Create sysroot" fails:

s390x:


Run sudo debootstrap --no-merged-usr --arch=s390x --verbose --include=fakeroot,symlinks,build-essential,libx11-dev,libxext-dev,libxrender-dev,libxrandr-dev,libxtst-dev,libxt-dev,libcups2-dev,libfontconfig1-dev,libasound2-dev,libfreetype-dev,libpng-dev --resolve-deps --variant=minbase bullseye sysroot https://httpredir.debian.org/debian/
W: Cannot check Release signature; keyring file not available /usr/share/keyrings/debian-archive-keyring.gpg
I: Retrieving InRelease 
E: Invalid Release file, no entry for main/binary-s390x/Packages
Error: Process completed with exit code 1.


ppc64le:


Run sudo debootstrap --no-merged-usr --arch=ppc64el --verbose --include=fakeroot,symlinks,build-essential,libx11-dev,libxext-dev,libxrender-dev,libxrandr-dev,libxtst-dev,libxt-dev,libcups2-dev,libfontconfig1-dev,libasound2-dev,libfreetype-dev,libpng-dev --resolve-deps --variant=minbase bullseye sysroot https://httpredir.debian.org/debian/
W: Cannot check Release signature; keyring file not available /usr/share/keyrings/debian-archive-keyring.gpg
I: Retrieving InRelease 
E: Invalid Release file, no entry for main/binary-ppc64el/Packages
Error: Process completed with exit code 1.

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PR Comment: https://git.openjdk.org/jdk/pull/26461#issuecomment-3814551416