Files are marked with suffixes Before and After,
to indicate the files before and after refactoring.
Sometimes there is a single .java file within the package.
It is understood that in real cases it would be appropriate to put each class in a separate file, instead of putting all the static classes together.
As well as unit tests should be created, before refactorings.
In the package refactoring there are refactorings that may be common to multiple Code Smell.