Open source
We at Agical are always looking for new ways to improve the way we work and the tools we use. We believe that the best way to learn new skills and develop existing ones is by using them actively. Those are some of the reasons why we contribute actively to the open source community.
Bumblebee
Bumblebee is a small run'n'report framework that builds on top of JUnit to create documentation by example. It is open source and Apache 2 licensed.
RMock
RMock is a mock framework that enforces a certain strictness in your tests. By nature your tests have to follow expect, execute and verify. One of the unique features of RMock is that you can intercept methods in concrete or abstract classes. RMock is not developed anymore but works well for JUnit 3.8.x tests.