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class Base implements Cloneable {
  public Object clone() throws CloneNotSupportedException {
    return new Base();	 
  }
  protected static void doLogic() {
    System.out.println("Superclass doLogic");
  }
}

class Subclass1 extends Base {
  public Object clone() throws CloneNotSupportedException {
    return super.clone();
  }
  protected static void doLogic() {
    System.out.println("Subclass doLogic");
  }
  public static void main(String[] args) {
    Subclass1 s = new Subclass1();
    try {
      Object sc = s.clone(); // get's Base obj instead of subclass'
      System.out.println(sc.getClass().hashCode()); // a possible mistake
      // ((Subclass1)sc).doLogic(); // Produces ClassCastException, disqualified
    } catch (CloneNotSupportedException e) { /* ... */ }
  }
}