Apache Ant - Ant is a Java-based build tool, a great make-like tool for Java projects. Ant integrates well with other XP tools like JUnit. According to Ant's original author, James Duncan Davidson, the name is an acronym for "Another Neat Tool".
AspectJ Project - Aspect is a Java tool for implementing Aspect Oriented Programming (AOP).
Danube - Danube Technologies, Inc. is a project success company specializing in the improvement of management and engineering practices for software development organizations. A leader in Agile transition services, the company provides training, mentoring, staffing and other professional services to development teams around the globe including ISVs, Enterprises, and governmental organizations.
Diamond Sky Software - Diamond Skys tools to help developers plan Extreme/Agile projects.
XP Tracker (Twiki plugin) - A Twiki plugin for tracking eXtreme Programming projects. Information is entered for stories and their associated tasks. Information for all other levels in the hierarchy is automatically generated.
XPlanner - XPlanner is a (free) project planning and tracking tool for eXtreme Programming (XP) teams. Includes a simple planning model, virtual note cards, tracking at multiple levels, and more.