Task scheduling in J2SE / J2EE with Quartz

Recently I had to implement a module that would execute a given task once a day. At first I wanted to use Timer class but than I found Quartz.
Quartz is a library for task scheduling for JAVA/J2EE. It is very easy to configure and use. Here are some features that I like:

• works in both J2SE and J2EE
• different jobs storing modes (memory or DB)
• jobs can be declared in XML (no need to compile the code after changes)
• different triggering modes (e.g. Cron like one)
• predefined set of triggers e.g. minutely, daily etc.
• it's for free (Apache License 2.0)

Check it out at: www.opensymphony.com/quartz/