Ask HN: Tail call optimization for Java JDK 8 or 9? - Scala, Clojure

With the growing popularity of Scala and Clojure does anyone know if people are working on Tail call optimization for Java JDK 8 or 9? Seems like with the growing support with JVM based languages this is a necessary next step to support functional languages.

We now have JSR 335 (Lambda Expressions for the JavaTM Programming Language)

2010 Discussion http://mail.openjdk.java.net/pipermail/mlvm-dev/2010-October/002016.html

References: http://openjdk.java.net/projects/lambda/ https://www.jcp.org/en/jsr/detail?id=335