A new build and a new structured concurrency API

[Alan Bateman]

On 18/11/2021 09:36, Alex Otenko wrote:
> I still fail to see what you win by not invoking onComplete. I see a 
> lot of problems from indeterminism in other similar contexts.

It would be useful for the discussion to outline your example where it 
useful to continue to collect results after the executor is shutdown. As 
Ron says, the shutdown method in this API is to say that you are done 
and no longer interested in any more results. All remaining threads are 
interrupted. I read your mail about borrowing a connection but that 
sounds like try-finally in the task, nothing to do with notification of 
completed task.

-Alan