PMD - "Project Meets Deadline"

PMD, also known by its backronym "Project Meets Deadline", is a static code checker for Java (kind of a Java lint if you will) currently on version 4.2.5.

You run pmd via bin/pmd java-source-file text rulesets/unusedcode.xml, as an example. There are lots of different rulesets and you can even roll your own ruleset. It is quite interesting to see how pmd defines rules.

I ran pmd on some of my own modest programming efforts using options: basic,imports,unusedcode and found no problems.