This document summarizes advanced features in JUnit, including: 1. It discusses features like @ClassRule and @Rule in JUnit advanced, which allow implementing custom rules for tests. 2. It mentions experimental features in JUnit like the Enclosed runner, which allows grouping tests into logical blocks. 3. It provides links to resources on Mockito, a mocking framework, comparing it to other mocking frameworks like EasyMock and JMock. Mockito allows stubbing and verifying method calls on mock objects.