Surrogate is a complimentary unit testing framework, especially suitable for unit testing of large, complex Java systems. Surrogate integrates seamlessly with JUnit, MockEJB and various mock object implementations and is based on the AspectJ technology
VirtualMock is a Unit Testing tool. It uses Junit, Aspect-Oriented Programming (AOP) and the Mock Objects testing approach. Through AOP, it supports features which are not possible with other pure-java mock object frameworks.
Provides possibility to adapt the interface of tested class. Enables to set a state of the class while writing tests by accessing the members that are not usually accessible.
Enterprise JUnit Beans 3 is a JUnit extension framework that allows regular JUnit tests to test Entities and Session Beans from the EJB 3.0 spec with Dependency Injection for the test classes and running on standalone EJB3 containers.
M3Actions is a framework to define operational semantics in MOF metamodels. It provides a graphical action language to define model behaviour, a simulator, debugger and execution trace recorder, build on top of eclipse modeling projects (EMP).
Swing Spy is java based Swing/AWT spy agent that prints the widget under the cursor (like Spy++ for Windows/MFC and SWT Spy for Java-SWT). Download from the homepage: http://www.nenoff.com/swingspy/