package com.siyeh.igtest.inheritance.abstract_class_never_implemented; public abstract class AbstractClassNeverImplemented {} abstract class AbstractClassWithOnlyOneDirectInheritor {} class Inheritor extends AbstractClassWithOnlyOneDirectInheritor {} abstract class AbstractClassWithTwoInheritors {} class Inheritor1 extends AbstractClassWithTwoInheritors {} class Inheritor2 extends AbstractClassWithTwoInheritors {}