JawFlow is a Workflow Engine partially conformal to WfMC (www.wfmc.org) directives, completely written in Java using JMX technology. It understands XML Process Definition Language (XPDL) and can be customized using activities written in Java or in any scripting language supported by BSF
The original GlassFish Update Center. Also serves as the parent project for Update Center 2 (used in GlassFish 3.x)
Online store implemented using Grails
Domain Object Explorer is a desktop application that auto-generates the user interface for your JPA / EJB3 entity beans.
The Proctor community is building free, open source monitoring
Rss4jsf is an open source tag lib that adds show rss content capability to JSF applications without writing complex code.