I develop some open source projects.

KefirBB - the Java library for text translation. Initially it was developed for BB2HTML translation. But now it also can be used for escaping HTML, textile and others transformations of text.

Grails Asynchronous Mail plugin - the Grails plugin for sending emails asynchronously. It saves messages in the DB and send them by a quartz job.

Grails BB plugin - the simple Grails plugin for BB-codes uses the KefirBB.

I also contribute the Grails Quartz plugin.