RFR: 8302590: Add String.indexOf(int ch, int fromIndex, int toIndex)

[Raffaello Giulietti]

On Fri, 24 Feb 2023 16:35:25 GMT, Raffaello Giulietti <rgiulietti at openjdk.org> wrote:

>> Personally I would expect `string.substring(fromIndex, toIndex).indexOf(ch)` to behave isomorphically to `string.indexOf(ch, fromIndex, toIndex)`
>
> Then you would also expect `string.substring(fromIndex).indexOf(ch)` to behave isomorphically to `string.indexOf(ch, fromIndex)` in current releases, right?
> It does not.

(I guess you are referring to the fact that `substring()` can throw.)

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PR: https://git.openjdk.org/jdk/pull/12600