RFR: 8277969: HttpClient SelectorManager shuts down when custom Executor rejects a task [v9]

[Daniel Fuchs]

On Sat, 16 Apr 2022 11:06:21 GMT, Daniel Fuchs <dfuchs at openjdk.org> wrote:

>> These changes make sure that pending requests are terminated if the selector manager thread exits due to exceptions.
>> This includes:
>>    1. completing CompletableFutures that were returned to the caller code
>>    2. cancelling requests that are in flight
>>    3. calling onError on BodySubscribers that may not have been completed
>> Note that step 3 is necessary as certain CompletableFutures, such as those returned by `BodySubscribers.ofInputStream`, complete immediately, the operation being eventually completed when the last bite of the response is read. Completing a completable future that is already completed has no effect, this case is handled by completing the BodySubscriber too.
>
> Daniel Fuchs has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fixed accepted exception logging in tests

Thanks Michael!

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PR: https://git.openjdk.java.net/jdk/pull/7196