WABClient is a 100 % Pure Java implementation of a thin client application framework. It's very small, about 70K and therefore fast to install on a client machine. The content of the application is dynamic and depends on the XML input.
sBugs is a defect tracking system written in Java, using JSP and PostgreSQL. It aims to be easy to install, maintain, and use. It does not have all the bells and whistles of a system like Bugzilla, but is feature-rich and extendable.
Webploy is an open source pluggable install system for Java based web applications. If you deliver web based applications that others will install, Webploy is exactly what you need.
TestManagement is a test case repository. The goal of the project, is that the tool should be very easy to install, prepare and setup, intuitive, and easy to use.
An web system for small university courses, typically postgrad. Simple to install/maintain, easy for "teachers" with any scripting skills to extend. Alternative to big-iron VLEs/LMSs. Forums, quizzes, timetables, cms, year and user management, etc.