RFR: 8357013: Optimize response code parsing in HttpURLConnection

[Daniel Fuchs]

On Thu, 15 May 2025 05:14:02 GMT, Patrick Strawderman <duke at openjdk.org> wrote:

> Avoid allocating a substring to parse the response code in HttpURLConnection#getResponseCode, but instead use the Integer.parseInt overload that accepts String indices.

Marked as reviewed by dfuchs (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/25245#pullrequestreview-2854323316