Ajax Forums
A simple, powerful, secure and scalable discussion forum system. [Shareware]
DigiPosts
A message board with rich graphical user interface (GUI), complete DigiChat integration, and fully integrated mailing list (listserv) functionality. [Commercial]
eForum
Enables geographically distant participants to share ideas and enhance teamwork via the Web. Supports moderation and email notifications. [Open Source, BSD-like]
EyeBrowse
Servlet-based, mailing list archive browser. Includes source, mailing list, and documentation. [Open Source, Apache]
Jive Forums
A highly configurable and extensible web forum software, written in Java. [Shareware]
LightningBoard
A bulletin board system written in Java. [Open source, Apache style license]
Magic Cookie
Bulletin board discussion software. [Freeware]
Meinds
Java based messaging and information database system. [Open source]
mvnForum
A bulletin board (forum) built on the J2EE technology(Jsp/Servlet). mvnForum is compatible with any Servlet Container which supports Jsp 1.1 and Servlet 2.2. [Open source, GPL]
SPFOL JSP Forum
A JSP forum application solutions built on the Java J2EE technology (Jsp/Servlet and JavaBean). [Commercial]
Suckage Open Message Architecture (SOMA)
Web messaging engine, similar to Slash, but written in Java. [Open Source]
The Java Technologies Behind the New Developer For
By Dana Nourie. This article focuses on the Java technologies used in the general architecture of Jive forums, as well as the configurations and changes to code for the Jive special forum features.
Yazd
Java based forum software, with 3 different discussion forum looks (skins). [Open source, Apache License]