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## Oracle JDK vs. OpenJDK

"We build our JDK by taking the open source OpenJDK code base and replace/add certain proprietary (non-OSS) components to it." -- Henrik Stahl at https://blogs.oracle.com/henrik/entry/moving_to_openjdk_as_the#comment-1307877302754

## Java on Mac

On Mac, `java` looks in `/Library/Java/JavaVirtualMachines`.

## Misc

http://docs.oracle.com/javase/7/docs/api/java/lang/UnsupportedOperationException.html

    throw new UnsupportedOperationException("Not yet implemented");