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> erlangs stability is derived from the semantics of the language and that should transfer to the jvm fine.

From what I understand Erlang depends heavily on green threads, which are no longer available on the JVM.

You can implement green threads yourself.

How would you do that in Java given that you can't reify the stack?

Erjang is using Kilim (http://www.malhar.net/sriram/kilim/) which does bytecode rewriting to support coroutines (kind of green threads) on top of JVM. With Java 8, we're rumored to get coroutines in the JVM.

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