Jaguar Version 2

Java-based Front-End 
Rewrite Java bytecode to Jaguar bytecode

GCJ-based Back-End
Static Java compiler based on GCC
Very efficient code generation
All open source

Pros:
Easy to add new Jaguar Drivers
Platform independent
Can verify type-safety of Jaguar Drivers

Cons:
Must add Jaguar bytecode support to compiler/JVM
No current source available for Sun Linux JVM