Bugzilla is the leading open-source/free software bug tracking system, with high-profile installations at mozilla.org, GNOME, Red Hat, and NASA, among others. It features a comprehensive set of fields, attachment management, inter-bug dependencies, email notification of changes, a powerful query interface, reporting, and Web, XML, email, and console interfaces. It can be managed entirely using a Web-based UI. The user UI is customizable using templates.
Jitterbit is an integration tool for designing, configuring, testing, and deploying integration solutions. It supports many document types and most standards-based protocols, including XML, Web Services, popular databases, text files, FTP, HTTP, and others. The integration server runs on both Windows and Linux and is configured using a Java-based user interface that is designed to make integration quick, easy, and intuitive to complete. With the UI, users can define their integration operations from start to finish: adding source and target systems, using drag-and-drop mapping to transform data, setting schedules, creating success/failure events, and tracking all of their deployed integration operations.
MMBase is an Open Source Java-based content management system that can be used for publishing Internet content (e.g. Web sites, mailing lists, etc). It covers the whole spectrum needed to import, manage, maintain, export, and publish information. In other words, it contains Web-based editors for editorial people to insert, manipulate, and delete information. MMBase uses a jsp-taglib for Web designers to publish the information dynamically.