Cibyl is a programming environment that allows compiled C/C++ programs to execute on J2ME-capable phones. GPL

Cibyl 19
Cibyl uses GCC to compile programs to MIPS binaries, and these are then translated into Java bytecode. The use of binary translation and the simplicity of translating MIPS instructions means that Cibyl programs can be quite well-performing. With Cibyl, programs written in C/C++ can be ported to J2ME without switching languages.