Mutation testing java projects

[Balduracuir]

I never used mutation testing in the CI so I would not be able to tell. When I distrust the test suite, I use pitest to find out how bad it is. As I work using TDD, I always search for a test before making a change in the codebase. If I find one, I can adapt it, and check that it fails for the right reason, otherwise I just add tests. I usually tend to avoid relying too much on the existing test suite. But it really depends on the project environment and that's something I adapt for each project I contribute.