OnJava8-Examples/generics/HijackedInterface.java

// generics/HijackedInterface.java
// <20>2016 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
// {CompileTimeError} (Won't compile)

class Cat extends ComparablePet implements Comparable<Cat>{
  // Error: Comparable cannot be inherited with
  // different arguments: <Cat> and <Pet>
  public int compareTo(Cat arg) { return 0; }
}