JTrac

JTrac is an open source and highly customizable issue-tracking web-application written in Java.

Features

• Add custom fields and drop downs
• Per-project customizable workflow
• Field-level permissions
• Detailed history view
• E-mail notifications
• File attachments
• Full text search
• Filter searches even by custom fields
• Detailed dashboard view of statistics
• Export data and search results to Excel
• Support for anonymous browsing of projects
• Cross-reference items to each other, e.g. "duplicate of", "depends on" etc.
• Support for all popular databases
• Support for multiple languages
• Embedded database and web-app server - download and start using right away!

http://jtrac.info/