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.
PMD now has support for parsing JDK 1.5 source
code, including enumerations, generics,
annotations, and variable length arguments. There
are also 17 new rules, and several of the existing
rules have been optimized.
