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 /** 25 * @test 26 * @bug 8031695 27 * @summary CHA ignores default methods during analysis leading to incorrect code generation 28 * 29 * @run main/othervm -Xbatch DefaultAndConcreteMethodsCHA 30 */ 31 interface I { 32 default int m() { return 0; } 33 } 34 35 class A implements I {} 36 37 class C extends A { } 38 class D extends A { public int m() { return 1; } } 39 40 public class DefaultAndConcreteMethodsCHA { 41 public static int test(A obj) { 42 return obj.m(); 43 } 44 public static void main(String[] args) { 45 for (int i = 0; i < 10000; i++) { 46 int idC = test(new C()); 47 if (idC != 0) { 48 throw new Error("C.m didn't invoke I.m: id "+idC); 49 } 50 51 int idD = test(new D()); 52 if (idD != 1) { 53 throw new Error("D.m didn't invoke D.m: id "+idD); 54 } 55 } 56 57 } 58 }