[capableweb]

Ok, so then what is this discussion about? Java Streams have existed basically forever, as a 3rd party library, but that doesn't matter here in our conversation about Java language features, where 3rd party libraries somehow changes what the language is...

[EnergyAmy]

I guess it's nice for Java that they did this, but the OP's assertion that no other language handles this as nicely doesn't really stand. For example, this quote:

> In other mature languages, streams are very rigid and feel non-composable

I'd like to see some motivating examples that make me say to myself, "Yeah, Java's got a neat trick there".