FindBugs - Find Bugs in Java Programs
FindBugs is in the Java World a well known plugin to check Java Code against typicall errors. Information about the FindBugs Project are here available.
FindBugs also supports the Java Guidance of Josha Bloch's Effective Java -> a must read!
FindBugs for DominoDesigner makes the FindBugs Plugin available for the Domino Designer. The Plugin can easily be installed by drag and drop the following File to the widget sidbar.