Assertions in Eclipse
A small trick I found. While running unit tests, I realized that the Maven Surefire plug-in enables assertions during the test run, while Eclipse does not do so (at least, not by default). Looking for a way to enable assertions at unit test time, I found that you can go to Windows | Preferences... > Java | JUnit and select the "Enable assertions for new JUnit launch configurations" checkbox. Hope this helps somebody somehow.