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Re:Clojure 2011 Year in Review by gtani on Tuesday January 03, 2012 @01:47PM (#3420758)
There's a very finite amount of stuff you need to pick up and this is common to JRuby, groovy, scala too. Remember you can ask questions on Stackoverflow, IRC (freenode #clojure, google group, folks are supportive. Re: JVM for non-java programmers:

http://stackoverflow.com/questions/4741626/what-parts-of-the...

http://stackoverflow.com/questions/4230746/does-being-a-comp...

http://marxsoftware.blogspot.com/search/label/Java%20%28Gene...

(Bytecode for dummies, the Hotspot switches post are terrific)

http://stackoverflow.com/questions/5721496/learning-java-so-...

Re:Clojure 2011 Year in Review by gtani on Tuesday January 03, 2012 @03:33PM (#3421186)
Addendum: My recent pain point was downloading a self-extracting JDK installer from oracle's site, and it wouldn't extract. Also, the hotspot switches are not exactly very finite amounts of time to benchmark, but most people seem to bump the defaults for MaxInlineSize, Xmx, Xss, and Xms

http://www.theserverside.com/discussions/thread.tss?thread_i...