RFR: 8353453: URLDecoder should use HexFormat

[Roger Riggs]

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`.

src/java.base/share/classes/java/net/URLDecoder.java line 208:

> 206:                     while ( ((i+2) < numChars) &&
> 207:                             (c=='%')) {
> 208:                         int v = HexFormat.fromHexDigits(s, i + 1, i + 3);

Its worth noting that the exceptions thrown by HexFormat.fromHexDigits are different than those thrown by Integer.parseInt, as to the specific type and exception message.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/24314#discussion_r2023532637