Joe H. was reading through the documentation of his company's custom-built Java framework and came across today's bizarre example. It would seem that the framework builders (who have since moved on) preferred to use the EmptyList in a number of places in lieu of an Empty List.

package initech.foundation.util;
import java.util.AbstractList;

public class EmptyList extends AbstractList
{
  public EmptyList()
  {
          
  }

  public Object get(int index) 
  {
    return null;
  }

  public int size()
  {
    return 0;
  }

}