PMD is a Java source code analyzer. It finds
unused variables, empty catch blocks, unnecessary
object creation, and more. It includes CPD, a tool to detect chunks of identical code.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
This release has support for checking JSP/JSF pages. It has five new Java rules (AvoidThreadGroup, UnsynchronizedStaticDateFormatter, InefficientEmptyStringCheck, InsufficientStringBufferDeclaration, and SimplifyBooleanAssertion), many bugfixes, and many improvements to current rules.