multicore « concurrency « Java Thread Q&A

1. Dataflow Programming API for Java?    stackoverflow.com

I am looking for a Dataflow / Concurrent Programming API for Java.
I know there's DataRush, but it's not free. What I'm interested in specifically is multicore data processing, ...

2. Multi-Core/Concurrent Programming and .NET/Java    stackoverflow.com

I often hear about other languages promoted as being more suitable for multi-core/concurrent programming e.g. Clojure, Scala, Erlang etc. but I'm a little confused about why I need to worry about ...

3. Concurrency supported by all multicore?    coderanch.com