1 /*
   2  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package compiler.types.correctness.hierarchies;
  25 
  26 public class DefaultMethodInterface {
  27     private DefaultMethodInterface() {
  28     }
  29 
  30     public static class Hierarchy
  31             extends TypeHierarchy<DefaultMethodInterface.A, DefaultMethodInterface.B> {
  32         public Hierarchy() {
  33             super(new DefaultMethodInterface.A(), new DefaultMethodInterface.B(),
  34                     DefaultMethodInterface.A.class, DefaultMethodInterface.B.class);
  35         }
  36     }
  37 
  38     public static interface I2 extends TypeHierarchy.I {
  39         default int m() {
  40             return TypeHierarchy.ANSWER;
  41         }
  42     }
  43 
  44     public static class A implements I2 {
  45         // use default method from I2
  46     }
  47 
  48     public static class B extends A {
  49         @Override
  50         public int m() {
  51             return TypeHierarchy.YEAR;
  52         }
  53     }
  54 }