1 /*
   2  * Copyright (c) 2019, 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 /*
  25  * @test
  26  * @bug 8226798
  27  * @summary Check that the vTable for class C gets set up without causing
  28  *          an assertion failure.
  29  * @compile pkg/A.java
  30  * @run main VTableTest
  31  */
  32 
  33 public class VTableTest {
  34 
  35     interface Intf {
  36         public default void m() { }
  37         public default void unusedButNeededToReproduceIssue() { }
  38     }
  39 
  40     static class B extends pkg.A implements Intf {
  41     }
  42 
  43     static class C extends B {
  44         public void m() { System.out.println("In C.m()"); }
  45     }
  46 
  47     public static void main(String[] args) {
  48         new C().m();
  49     }
  50 }