There is an a optimization in our `projectTest` config which filters
  out some compiled test classes if they didn't contain specified test
  (if user ran :test task with --tests flag). This optimization for one
  tests left only one .class file which contains test. But JUnit 5 for
  tests in inner classes (with @Nested annotation) requires not only
  target class, but and all it's containers

Test: package.SomeTest$Nested.testMethod
JUnit4: package/SomeTest$Nested.class
JUnit5:
- package/SomeTest.class
- package/SomeTest$Nested.class