Da Vinci Machine

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Contents

The Da Vinci Report

John Rose - Sun

Project
http://openjdk.java.net/projects/mlvm
Blog
http://blogs.sun.com/jrose
Slides
File:DaVinciMachineTalk.pdf

Abstract

We will survey the present state of the Da Vinci Machine Project, with special emphasis on the implementation and use of method handles and invokedynamic.

Background

  • project goal: changes to the JVM bytecode architecture
  • JVM has been language-independent from the beginning, but hasn't necessarily been optimal for non-Java languages
  • first code posted in 2008, along with draft specifications for reviewer (JSR 292)
  • balancing specification with implementation: tail-calls, interface injection, invoke dynamic ("indy")

Current Status

  • active developer community on mailing list, IRC
  • programmers assigned to a number of key tasks in JSR 292

Future

  • fixnums and tuples handled better in the JVM

Key Issues for Discussion

(please expand cooperatively)

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