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@johanandren @patriknw So should we add an overloaded method to `Flow`? ```scala def collect[T](collector: java.util.stream.Collector[Out @uncheckedVariance, _

@johanandren @patriknw is this still relevant? I mean add to a `FlowOps#collect` which accepts a java collector.

I think this would be very cool, in the Kalix, the JDK version bumped to 11.

https://openjdk.java.net/jeps/410 ,some documents about the AOT in the Akka doc should be removed too.

@johanandren This one can be closed too?

Thanks for the review, @johanandren I( will update this once https://github.com/akka/akka/pull/31330 get merged.

I will continue it this weekend.

I will try to find time this weekend, super busy these days:)

I have updated this PR and I think it's nearly done, notes: 1. The tests is adjusted from `UnfoldResourceSourceSpec` , it not easy to come up good tests. 2. `close...

@johanandren @patriknw Any update about this, then I can continue it this weekend. I will not have much time soon because of the shopping anniversary