RFR: 8353453: URLDecoder should use HexFormat

[Mikhail Yankelevich]

On Sat, 29 Mar 2025 17:27:20 GMT, Patrick Strawderman <duke at openjdk.org> wrote:

> Use `HexFormat.fromHexDigits` in URLDecoder, instead of `Integer.parseInt`.

Hi! 
This commit must refer to an issue. Could you please create one and provide some background for the change here. 
Thank you

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PR Comment: https://git.openjdk.org/jdk/pull/24314#issuecomment-2766466586