When running on OpenJDK, the JCaptcha.jar needs replacing, or CAPTCHA-based views and operations will fail. See the post on JCaptcha needs patching
Which database should I use? HSQLDB is provided for assessment (and, as an embedded database, needs no installation). A standalone DB is recommended for production, though - most databases with a JDBC driver will work; see the link above.
The following notes and links are for those interested in developing JForum code within the Eclipse IDE.
JForum can appear to work in Eclipse without any setup, or after use of the installer, but this will cause problems later. For further Eclipse quirks, and the original post on database behaviour in Eclipse, see,
On both the original site, and the JForum2 bugfix site, JForum is supplied as a pre-compiled binary download. Like other advanced forum softwares, JForum is a specialised CMS, and can be configured and templated without touching source.
The two sites differ in their binary publishing - the original JForum supplies a .jar, the Google-based JForum2 supplies .wars. The following may be of interest to users of Eclipse and other IDEs also,
If the intention is to make internal changes, or contribute to a JForum codebase, source code will need to be imported into Eclipse. Here is a post based on the Google-based JForum2 recommended method (which uses a svn download),
JForum has an extended, well-developed configuration system.The system listens to configuration files for changes, for example, so there is no need to recompile or reload servers. For a fuller list of features, see About the features of the JForum configuration system