Uses the new Quartz 2 framework from quartz-scheduler.org. The goal is to keep it as simple as possible while making it friendly for Groovy/Grails.
grails install-plugin quartz2
A plugin for Quartz 2+ that should work with Grails 2. It adds the ability to confgure jobs via config or BootStrap. This is (mostly) backward compatible with the original Quartz plugin too so the concept of Job artifacts should work as well. Docs and plenty of examples can be found here https://github.com/9ci/grails-quartz2