Ghidra is a software reverse engineering (SRE) framework

Desktop/Android/HTML5/iOS Java game development framework

The Hypersistence Utils library (previously known as Hibernate Types) gives you Spring and Hibernate utilities that can help you get the most out of your data access layer.

A Minecraft plugin API

A Forge mod that implements SpongeAPI

A Java entity system inspired by Ash & Artemis.

Home of the DSub Android client fork

An IRC client library in Java

An open-source implementation of the Minecraft server software.

sIRC is a general purpose IRC library for Java, to be used as a foundation for IRC clients or bots. Using an event-driven architecture for recieving messages and a easy way of sending messages, sIR…

A simple and lightweight asynchronous wrapper library for JDBC.

Fastest Java web server in the West

A Bukkit plugin that lets you run scripts when people vote through votifier.