1 package testproxy; 2 3 public class Target127 { 4 public interface Item { } 5 public interface CovariantItem extends Item { } 6 7 public interface Super { item()8 Item item(); 9 } 10 11 public interface Sub extends Super { item()12 CovariantItem item(); 13 } 14 15 public static class RealSub implements Sub { item()16 public CovariantItem item() { 17 return null; 18 } 19 } 20 } 21