JForum
jforum is a powerful and robust discussion board system implemented in Java
Disclaimer: I am not actively working on the code anymore, as I moved to another projects and priorities over the years. I keep it here for historical reasons and because it may be useful to someone
To build jforum just run mvn package
You can find database initialization scripts in src/main/resources/jforumConfig/database folder.
original : https://github.com/rafaelsteil/jforum3