IsInstanceTest.java revision 11707:ad7af1afda7a 
1/*
2 * Copyright (c) 2012, 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 6894807
27 * @summary No ClassCastException for HashAttributeSet constructors if run with -Xcomp
28 *
29 * @run main compiler.c2.IsInstanceTest
30*/
31
32package compiler.c2;
33
34public class IsInstanceTest {
35
36    public static void main(String[] args) {
37        BaseInterface baseInterfaceImpl = new BaseInterfaceImpl();
38        for (int i = 0; i < 100000; i++) {
39            if (isInstanceOf(baseInterfaceImpl, ExtendedInterface.class)) {
40                throw new AssertionError("Failed at index:" + i);
41            }
42        }
43        System.out.println("Done!");
44    }
45
46    public static boolean isInstanceOf(BaseInterface baseInterfaceImpl, Class... baseInterfaceClasses) {
47        for (Class baseInterfaceClass : baseInterfaceClasses) {
48            if (baseInterfaceClass.isInstance(baseInterfaceImpl)) {
49                return true;
50            }
51        }
52        return false;
53    }
54
55    private interface BaseInterface {
56    }
57
58    private interface ExtendedInterface extends BaseInterface {
59    }
60
61    private static class BaseInterfaceImpl implements BaseInterface {
62    }
63}
64