> code written in Java, Scala, Groovy, Clojure, Kotlin, Ceylon, Frege, etc
Your list of 7 JVM languages (both here and in your earlier comment on this submission) seems to be from most widely used to least. Yet in your HN comment from 2 days ago at https://news.ycombinator.com/item?id=14068664 you ordered that list differently, i.e. "Java, Scala, Clojure, Groovy, Kotlin, Ceylon, Frege, etc". Have you changed your mind about the relative adoption of Clojure and Apache Groovy in the last two days?