It's no surprise that this one pops up often in JUnit tricky interview questions. JUnit is a great tool for Java developers because it provides many benefits that make unit testing easier. One of the great things about unit tests is that they can help you catch bugs early on in the development process. By writing comprehensive unit tests, you can ensure that your code is doing what it is supposed to do and catch any errors before they become big problems. Unit testing can also help you improve your code quality overall. As you write more unit tests, you will start to think more carefully about how your code is structured and how it can be made more robust. This can lead to cleaner, better-organized code that is easier to maintain in the long run. Finally, unit testing can save you a lot of time and effort in the debugging process. If you have a solid suite of unit tests in place, you can quickly identify which parts of your code are causing problems and focus your debugging efforts accordingly.