JForum Discussion Board
JForum is a powerful open source Forum software written in Java. JForum can be hosted on any servlet container based application server.
JForum is fast and secure and the entire user interface can be easily customized. Installation can be done through the Web interface. JForum also supports multiple forums.
JForum supports multiple databases such as MySQL, PostgreSQL, Oracle and HSQLDB. JForum also includes built-in cache for fast access. Posting messages support attachements, BBCode support and integrated message system.