On Fri, 14 Aug 2026 08:05:57 GMT, Tatsunori Uchino <[email protected]> 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?
>>
>> - [x] I confirm that I make this contribution in accordance with the
>> [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai).
>
> Tatsunori Uchino has updated the pull request incrementally with one
> additional commit since the last revision:
>
> Reapply JavaDoc
src/java.base/share/classes/java/lang/String.java line 1939:
> 1937: * @since 28
> 1938: */
> 1939: public int codePointCount() {
The simpler/updated proposal looks good. The other methods that operate on code
points will use "unpaired surrogates" and I think we should do the same here
rather than switching to "Isolated surrogate code units".
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PR Review Comment: https://git.openjdk.org/jdk/pull/26461#discussion_r3784071977
