RFR: 8345120: A likely bug in StringSupport::chunkedStrlenShort [v3]

[Per Minborg]

On Mon, 2 Dec 2024 14:26:08 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

>> As this is an internal API, I tried to keep it as similar as possible to the other bulk operations. But as you say, the value used here for the last parameter is always `segment.byteSize()`. We could easily change it. What's your preference here?
>
> If the method works correctly on all end offsets (even when the offset is different from the segment size), then I'm ok leaving it as is. I'm mostly trying to make sure that endOffset = size is not an hidden invariant we depend on.

I've added a test for the end offset.

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PR Review Comment: https://git.openjdk.org/jdk/pull/22451#discussion_r1866102021