http://openjdk.java.net/jeps/335
https://bugs.openjdk.java.net/browse/JDK-8202786 The javascript Nashorn engine is deprecated and slated to be removed in the next long term support release of Java. https://github.com/apache/incubator-druid/issues/5589 is the ticket for maintaining future java support in Druid. Not quite sure what the best way forward is. Should we revert back to rhino https://developer.mozilla.org/en-US/docs/Mozilla/Projects/Rhino ?
