Files required for Apache Roller
The first thing to do before deploying Apache Roller on your computer is getting all the required files—the JavaMail API and the Java Application Framework (JAF) for Roller's e-mail notification features, and the JDBC driver for connecting to the roller MySQL database.
The JavaMail API
With the JavaMail API, you can build mail and messaging applications. Roller uses this API to send e-mails from your blog, so that you and your readers can receive notifications when they leave a comment.