A tool to help eliminate NullPointerExceptions (NPEs) in your code
TLC is an explicit state model checker for specifications in TLA+
Java byte code compatibility analyser
Free and open-source style and grammar editor
Generates Latin squares and counts their transversals
Tools for the payments type!
Library of linguistic tools
Java library can be used in JUnit testcases for beans coverage
Validation of complex Apache Oozie Hadoop workflow