RFR: 8350019: HttpClient: DelegatingExecutor should resort to the fallback executor only on RejectedExecutionException

[Daniel Fuchs]

On Thu, 20 Feb 2025 14:31:38 GMT, Volkan Yazici <vyazici at openjdk.org> wrote:

> Updates `HttpClientImpl.DelegatingExecutor` to resort to the fallback executor only on `RejectedExecutionException`. `DelegatingExecutorTest` is added to verify the behavior of `DelegatingExecutor`. `tier1,2` reports are attached to the ticket.

Thanks for noticing this glitch and fixing it @vy. This looks good to me. Approving on the condition you have double checked that the tests are still stable.

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Marked as reviewed by dfuchs (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/23713#pullrequestreview-2630567465