Mocha is a Java decompiler, which allows programmers to translate a program's bytecode into source code.
A beta version of Mocha was released in 1996, by Dutch developer Hanpeter van Vliet, alongside an obfuscator named Crema. A controversy erupted and he temporarily withdrew Mocha from public distribution.[1] As of 2009 the program is still available for distribution, and may be used freely as long as it is not modified. Borland's JBuilder includes a decompiler based on Mocha.