QALab - Aggregates PMD + Checkstyle + FindBugs and tracks problems over time
XRadar - Using PMD, CPD, and lots of other projects to give measurements on standard software metrics such as package metrics and dependencies, code size and complexity, code duplications, coding violations and code-style violations.
Commercial products
Vanward Technology's Convergence - a quality management dashboard for the Java platform. Thanks to Vanward Technologies for their support of PMD by buying copies of PMD Applied!
