XPlanner+ is an open source (free) project planning and bug tracking tool for agile teams written on Java.
Xplanner+ is based on XPlanner, and has new and improved features, such as: fancy design, email notifications for tasks, redraw charts button, drag and drop stories.
Web Site: http://xplanner-plus.sourceforge.net
License and Pricing: LGPLv3 license, free
Support: SourceForge forum