Modular XSL-FO Implementation for Java.
OpenDDS is open source publish/subscribe middleware
RSS/Atom/OPML reader in Javascript + CORS proxy in Java
Remote web interfaced file manager
Gross greylisting server
Booking/reservation of meeting rooms/equipment with e-mail invitations
Enanced JUnixSocket library
software for email automation (newsletters, transaction mails, etc.)
SimpleTester
IrcAppender forwards important log4j messages to an IRC channel
A P2P Java app demonstrating JXTA API capabilities.
Stream manager