RFR: 8364007: Add no-argument codePointCount method to CharSequence and String [v14]

[Naoto Sato]

On Fri, 30 Jan 2026 15:21:39 GMT, Tatsunori Uchino <duke at openjdk.org> wrote:

>> test/jdk/java/lang/StringBuilder/Supplementary.java line 218:
>> 
>>> 216: 
>>> 217:     /**
>>> 218:      * Test codePointCount(int, int) & codePointCount()
>> 
>> I think a separate test method needs to be added solely for `codePointCount()` to follow the pattern in this test file. Bonus if you could rename each `testX` to `testMethodName`
>> (This test seems to have a lot of room for refactoring, but they are for another time)
>
>> Bonus if you could rename each testX to testMethodName
> 
> "`testCodePointCount`" has already been occupied:
> 
> https://github.com/tats-u/jdk/blob/585ce36e125ec2f79483311512d8789ff39b0df9/test/jdk/java/lang/StringBuilder/Supplementary.java#L365-L376
> 
> https://github.com/tats-u/jdk/blob/585ce36e125ec2f79483311512d8789ff39b0df9/test/jdk/java/lang/StringBuilder/Supplementary.java#L247-L251

We could distinguish them like `testCodePointCountNoArg` and `testCodePointCountTwoArgs`

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PR Review Comment: https://git.openjdk.org/jdk/pull/26461#discussion_r2747019135