Project Nashorn (pronounced: ˈnaːshɔɐ̯n)
Code base (OpenJDK8):
Code base (OpenJDK9):
NodeJS port on Nashorn (NodeJS on the JVM).
Here's a presentation from a BGJUG member at a Java conference in Sofia. It covers topics like Lambdas on Nashorn, AvatarJS, AvatarEE, etc...