A Java Virtual Machine for OpenJDK
Manifold is a Java compiler plugin, features include Metaprogramming
A reverse engineering suite (decompiler, editor, debugger and more)
An Eclipse Plugin to integrate different Class Decompiler seamlessly i
Translate java source into another language
a DSL for type systems, reduction rules, interpreters for Xtext langs
An HDL alternative to PCB graphical schematic capture tools.
A tool to convert C++ definitions into XML