Surrogate is a complimentary unit testing framework, especially suitable for unit testing of large, complex Java systems. The framework integrates seamlessly with JUnit, MockEJB and various mock object implementations and is based on the AspectJ technology.

If you are tired of broken unit tests because of time-dependence, external dependencies or low quality on the tests, Surrogate might provide the answer.

Surrogate can be downloaded via the Surrogate site.