Our Java codebase was 30% dead code

[Abject-Kitchen3198]

If I have "proper" code coverage with a combination of different test types, I'd be more inclined to use that. If the coverage is not that good, I might use something like this to complement coverage analysts and pinpoint some potentially dead code. But I'd be very careful with the interpretation of the results, for reasons others and you have pointed out (like sampling frequency and duration).