Looking For Servlet based Forum Software

I'm trying to set up my own forum site and is looking for Java servlet based forum software. Can anyone suggest one for me?

I heard about JForum and vbulletin but the latter one is a commerical product. I prefer free open source product where I can customize myself. I know Javaranch itself is based on JForum (as indicated at the end of the page :wink

. What is the View layer of JForum based on? I heard somebody says it's freemarker. I know about Jsp but have no experience with Freemarker. Is there any other similiar product that is MVC style but based on JSP?

What is the View layer of JForum based on?

As you said, the views are using FreeMarker.

Check out the list at http://java-source.net/open-source/forum-software

What's wrong with FreeMarker? It's lighter-weight than JSP.

Nothing wrong with Freemarker. Just I have no experience with it. Would it be easy to pick up Freemarker from a JSP background?

Depends on the person trying to pick it up. Like I said, it's substantially leaner and cleaner.

Just to put in another point of view; I'm not a FreeMarker fan. I think JSP can be kept just as mean and lean.

On the other hand, I'd urge you to learn FreeMarker so you can make your own informed decision, and it never hurts to have another technology under your belt.