Abbot
A framework for testing Java GUIs. Using simple XML-based scripts, you can launch a GUI, play back arbitrary user actions on it, and examine its state. Includes a script editor which can record user actions.
JFCMark
Benchmark suite aimed at measuring and comparing performance of JFC/Swing and related APIs. Free download with full source code.
Marathon
A GUI testing framework. Supports applications developed using Java/Swing.
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]
The Liar View Bug Pattern
Article about testing problems related to using the model-view-controller architecture
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]