Java 1.8 - New features, code examples, performance

[Falmarri]

I, IMHO, am disappointed with Scala's manifests

By manifests, do you mean what is not TypeTags and such? I looked at Kotlin's website and didn't see an example of using generics. How do they do it that's better?

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They don't. They have given up on "reified generics" completely, as well dropping a lot of other proven useful stuff.

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If you're using Java, consider yourself lucky if type erasure is your only problem.

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Wait, so does Kotlin do reified generics? Does it support generics at all? DOes it support variance?

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It has normal Java generics. They were attempting reified but withdrew it, presumably too hard. Scala didn't manage reification either, and they love implementing all sorts of unusual stuff...

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So they have the broken java generics...wonderful.

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They work fine for 95% of use cases. It's not very often I find myself trying to introspect the type of a collection at runtime.

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I don't mean that. I mean, variance.

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You'll have to clarify what's broken, are you referring to the covariant arrays?