RFR: 8252374: Add a new factory method to concatenate a sequence of BodyPublisher instances into a single publisher. [v6]

[Daniel Fuchs]

On Mon, 5 Oct 2020 10:14:57 GMT, Pavel Rappo <prappo at openjdk.org> wrote:

>> Scheduler is a final variable in `AggregateSubscription`. Fixed to:
>> 
>> `    this.scheduler = ....;`
>> 
>> (though the `this.` is not strictly needed in this third instantiation)
>
> Daniel, I believe Chris' concern is the escape of `this` before the (`AggregateSubscription`) object is fully
> constructed.

Sorry - where does it escape? It doesn't escape anywhere. We have used this idiom everywhere where a sequential
scheduler was needed.

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PR: https://git.openjdk.java.net/jdk/pull/57