JForum2
Bug fixes and enhancements for JForum 2.x
...It provides an attractive interface, an efficient forum engine, an easy to use administrative panel, an advanced permission control system and much more. Built from the ground up around an MVC framework , it can be deployed on any Servlet 3.1 container or application server running at least Java 8, such as Tomcat, Jetty and JBoss/WildFly. Its clean design and implementation make JForum easy to customize and extend.
There is extensive documentation of all aspects of the software at https://sourceforge.net/p/jforum2/wiki2/Home/
Source code and a beta build are available for running JForum on JakartaEE 10 environments such as Tomcat 10.1; it requires Java 11. ...