comparison test/compiler/inlining/InlineDefaultMethod.java @ 13021:4d3575d37a07

8026735: Stream tests throw java.lang.IncompatibleClassChangeError Summary: Put a band-aid to disable CHA-based inlining for interfaces with default methods in C1 Reviewed-by: kvn, twisti
author iveresov
date Wed, 30 Oct 2013 22:55:11 -0700
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13020:60a32bb8ff99 13021:4d3575d37a07
1 /*
2 * Copyright (c) 2013, 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 8026735
27 * @summary CHA in C1 should make correct decisions about default methods
28 * @run main/othervm -Xcomp -XX:CompileOnly=InlineDefaultMethod::test -XX:TieredStopAtLevel=1 InlineDefaultMethod
29 */
30
31
32 interface InterfaceWithDefaultMethod0 {
33 default public int defaultMethod() {
34 return 1;
35 }
36 }
37
38 interface InterfaceWithDefaultMethod1 extends InterfaceWithDefaultMethod0 { }
39
40 abstract class Subtype implements InterfaceWithDefaultMethod1 { }
41
42 class Decoy extends Subtype {
43 public int defaultMethod() {
44 return 2;
45 }
46 }
47
48 class Instance extends Subtype { }
49
50 public class InlineDefaultMethod {
51 public static int test(InterfaceWithDefaultMethod1 x) {
52 return x.defaultMethod();
53 }
54 public static void main(String[] args) {
55 InterfaceWithDefaultMethod1 a = new Decoy();
56 InterfaceWithDefaultMethod1 b = new Instance();
57 if (test(a) != 2 ||
58 test(b) != 1) {
59 System.err.println("FAILED");
60 System.exit(97);
61 }
62 System.err.println("PASSED");
63 }
64 }