Reports the cases when your code prevents a class from being subclassed by some framework (e.g. Spring or Hibernate) at runtime.

The typical examples when subclassing is necessary but impossible are:

final classes marked with framework-specific annotations (e.g. Spring @Configuration)
final, static or private methods marked with framework-specific annotations (e.g. Spring @Transactional)
methods marked with framework-specific annotations inside final classes

The list of reported cases depends on the frameworks used.