1 /*
   2  * Copyright (c) 2015, 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 8069263
  27  * @summary Deoptimization between array allocation and arraycopy may result in non initialized array
  28  * @run main/othervm -XX:-BackgroundCompilation -XX:CompileOnly=DefaultMethodsDependencies::test -XX:CompileOnly=DefaultMethodsDependencies$I2::m1 DefaultMethodsDependencies
  29  *
  30  */
  31 
  32 public class DefaultMethodsDependencies {
  33 
  34     interface I1 {
  35         void m1();
  36         // triggers processing of default methods in C1
  37         default void m2() {
  38         }
  39     }
  40 
  41     interface I2 extends I1 {
  42         // added to C2 as default method
  43         default void m1() {
  44         }
  45     }
  46 
  47     static abstract class C1 implements I1 {
  48     }
  49 
  50     static class C2 extends C1 implements I2 {
  51     }
  52 
  53     static void test(C1 obj) {
  54         obj.m1();
  55     }
  56 
  57     static public void main(String[] args) {
  58         C2 obj = new C2();
  59         for (int i = 0; i < 20000; i++) {
  60             test(obj);
  61         }
  62     }
  63 }