Mockito is one of the leading mocking frameworks for Java testing. Used in conjunction with a unit testing tool like JUnit, Mockito makes it fast and easy to write automated Java tests.

Microsoft's Visual Studio Code team has added initial support for the JUnit 5 testing framework, along with other Java functionality via extensions to the open source, cross-platform code editor.

Code Intelligence's CI Fuzz CLI tool now allows to Java developers to incorporate fuzz testing into their existing JUnit setups.