RFR: 8353453: URLDecoder should use HexFormat

[Patrick Strawderman]

On Mon, 7 Apr 2025 09:55:20 GMT, Daniel Fuchs <dfuchs at openjdk.org> wrote:

>> Use `HexFormat.fromHexDigits` in URLDecoder, instead of `Integer.parseInt`.
>
> Tests came back green - a few unrelated failures.

@dfuch @jaikiran @RogerRiggs Thank you for taking a look at this PR; looks like I need a sponsor. Would any of you be willing to sponsor this change?

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PR Comment: https://git.openjdk.org/jdk/pull/24314#issuecomment-2802826628