MCProtocolLib
MCProtocolLib is a simple library for communicating with a Minecraft client/server. It aims to allow people to make custom bots, clients, or servers for Minecraft easily.
Example Code
See example/com/github/steveice10/mc/protocol/test/MinecraftProtocolTest.java
Building the Source
MCProtocolLib uses Maven to manage dependencies. Simply run 'mvn clean install' in the source's directory.
License
MCProtocolLib is licensed under the MIT license.