Open Source Java Cross Compilers for Mac

Mouseth is a cross between the Mouse and Forth programming languages. The programs are compiled to a very compact, machine independant bytecode, which can then be run on its extremely small virtual machine.

OpenXL provides a flexible, platform-independent SOA/Web Service middleware and workflow programming language (SLL). OpenXL supports the creation, provisioning and execution of Web Services as well as the integration of code written in BPEL, Java, etc.

Junicon is a Java-based implementation of Unicon, a very high level object-oriented goal-directed programming language that lives at Unicon.org. Junicon features seamless Java object access, interactive interpretation, and numerous cleanups and enhancements while retaining Unicon's core expression-evaluation semantics. Please see the Junicon Project Web Site for publications about Junicon.

Water: a fast, secure, dynamic OO language and database. Water is an all-purpose language (and meta-language) that runs Web applications in the browser or server-side. Water is compatible with .NET, Java, and C on Windows, Linux and Mac OS X system.

Waxeye is a parser generator based on parsing expression grammars (PEGs). It supports C, Java, Javascript, Python, Ruby and Scheme.

Proteus Cross Compiler system allows the generation and compilation of Java Code from llvm-gcc compatible languages (C/C++/fortran). The generated code will execute at up to 50% of native code.