planning to use jforum to support my application

Anything I should beware?

Can you be more precise what you're wondering about?

I asking whether someone has experience setting this forum up, and if it had encountered any problems setting it up and using it.
Is it less/more robust than other open source Java based forums?

This answered some of my question though:
http://stackoverflow.com/questions/235729/whats-the-best-java-based-forum-software

When I first set up JForum 2.1.8 I found it quite easy - create the DB, install the web app, run the installer portion of the web app. That was about it. Haven't used any other Java-based forum software, so I can't compare it to anything.

JavaRanch is likely the largest JForum installation in existence (it was a couple of years ago), so our moderators are quite knowledgable about it :-)

You can read about some of our experiences here: http://www.javaranch.com/journal/2009/02/Journal200902.jsp

Thanks for the link. For a regular forum with a few subforums hope is not too much for me alone to administer. I don't plan on doing much page design, only set it up and let it loose on the internet.

It is the largest, that's why I asked here

http://jforum.net/production.jsp

From http://www.javaranch.com/journal/2009/02/Journal200902.jsp

Freemarker template language – While this serves the same purpose as a JSP (view) it uses a separate language that forces the Java code to stay out of the view. If we were writing software from scratch we probably would have used JSPs/EL since we had to go and learn Freemarker to use it.

I'm not extatic about Freemarker myself, but I suppose it worth putting up with it for a free forum in Java

Only problem I had was having to edit the jforum\WEB-INF\config\database\mysql\mysql_db_struct.sql file with TYPE to ENGINE.