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Java Advent Calendar

Here is a really interesting Java advent calendar with lots of interesting, technical articles:

e.g.

http://www.javaadvent.com/2013/12/mastering-java-bytecode.html
http://www.javaadvent.com/2013/12/anatomy-of-java-decompiler.html
http://www.javaadvent.com/2013/12/applying-forkjoin-from-optimal-to-fast.html
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