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Does anybody know how to integrate this into OSX so that it is known to the Java Preferences app ? (/Applicatons/Utilities/Java Preferences.app)

I've been using Oracle supplied JDK in the last five months and it's been always present there: http://cl.ly/image/07422e283m0G

Thanks. I had only installed the JRE. When I installed the JDK it showed up in there for me too.