hi
ProGuard is a free Java class file shrinker, optimizer, and obfuscator. It removes unused classes, fields, methods, and attributes. It then optimizes the bytecode. It then renames the remaining classes, fields, and methods using short meaningless names.
March 1, 2007
link:
http://rapidshare.com/files/22514774/proguard3.8.zip
March 15, 2007
link for 4.0 beta:
http://rapidshare.com/files/22514778/proguard4.0beta.zip
