1 /*
   2  * Copyright 2003-2004 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  20  * CA 95054 USA or visit www.sun.com if you need additional information or
  21  * have any questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 4949303 4960369 4965756
  27  * @summary Additional unit tests for covariant returns
  28  * @author gafter
  29  *
  30  * @compile  Covar2.java
  31  * @run main Covar2
  32  */
  33 
  34 public class Covar2 {
  35     static class A1 {
  36         public Long f() { return 12L; }
  37     }
  38     static class B1 extends A1 {
  39         public Long f() { return 12L; }
  40     }
  41 
  42     static class B2 {
  43         public int f() { return 12; }
  44     }
  45     static class C2 extends B2 {
  46         public int f() { return (short)12; }
  47     }
  48 
  49     static class C3 extends B2 {
  50         public int f() { return (short)12; }
  51     }
  52 
  53     public static void main(String[] args) {
  54         A1 b1 = new B1();
  55         System.out.println(b1.f());
  56 
  57         B2 c2 = new C2();
  58         System.out.println(c2.f());
  59 
  60         B2 c3 = new C3();
  61         System.out.println(c3.f());
  62     }
  63 }