Tool to remove unnecessary dependencies in a Java project

Question

I have a Java project that currently has a lot of JARs in its libraries directory, which are all included in the resulting package when building. I know, however, that some

Answer 1

You also can't tell if JARs that you don't import are required dependencies of dependencies. For example, if you use Spring it comes with its own dependencies, even if you don't import or call those classes in your code. I'm ignorant of ProGuard - does it check for those cases?