Marathon - A GUI testing framework supporting applications developed using Java/Swing. The test scripts are composed of Python code. Marathon focuses on end-user testing. [Open Source, LGPL] - http://www.marathontesting.com/
The Liar View Bug Pattern - Article about testing problems related to using the model-view-controller architecture. - http://www-128.ibm.com/developerworks/library/j-diag5.html
jemmy - A module for the Netbeans IDE that is used to create automated tests for Java GUI applications. It contains methods to reproduce all user actions which can be performed on Swing/AWT components. - http://jemmy.netbeans.org/
jfcUnit - Enables developers to write unit test cases for Java Swing-based applications. It provides XML Recording and playback. This allows users to quickly and automatically generate/edit scripts to drive the testing. [Open Source, LGPL] - http://jfcunit.sourceforge.net/
Jacareto - Capture-and-Replay-Tool for Java applications and applets which can be used for GUI testing, with command line and GUI frontends. [Open Source, BSD] - http://jacareto.sourceforge.net/
GUIdancer - An automated GUI test tool for Java/Swing programs, which requires no programming. Created tests are reusable and robust against changes in the application under test [Commercial, trial version] - http://www.bredex.de/en/guidancer/index.html
UISpec4J - UISpec4J is an Open Source functional and unit testing framework for Swing-based Java applications, built on top of the JUnit test harness. - http://www.uispec4j.org
XEUS - A GUI (Graphical User Interface) automation test tool that uses XML as the scripting language. The tool can also be used for hands-free PC demonstrations. [Commercial] - http://www.xeus-tool.com/
JFCMark - Benchmark suite aimed at measuring and comparing performance of JFC/Swing and related APIs. Free download with full source code. - http://www.excelsior-usa.com/jfcmark.html
Pounder - A utility for testing Java GUIs. It allows developers to dynamically load components, record scripts, and then use those scripts to construct JUnit tests. Requires Java 1.4. [Open source, LGPL] - http://pounder.sourceforge.net/
Abbot - A framework using simple XML-based scripts to launch a GUI, play back arbitrary user actions on it and examine its state. Includes a script editor which can record user actions. [Open Source, Common Public License] - http://abbot.sourceforge.net/