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 8041663
27 */
28
29public class AmbiguityErrorTest {
30
31    public interface A { }
32
33    public interface B extends A { }
34
35    public interface C {
36        A m(B strategy);
37    }
38
39    public interface D {
40        A m(A strategy);
41        A m(B strategy);
42    }
43
44    public interface T1 extends C, D { }
45    public interface T2 extends D, C { }
46
47    int count;
48
49    class T1Impl implements T1, T2 {
50        public A m(B strategy) {
51            count++;
52            return null;
53        }
54        public A m(A strategy) {
55            throw new AssertionError("Should not get here.");
56        }
57    }
58
59    public static void main(String... args) {
60        new AmbiguityErrorTest().test();
61    }
62
63    void test() {
64        T1 t1 = new T1Impl();
65        T2 t2 = new T1Impl();
66        final B b = new B() { };
67        t1.m(b);
68        t2.m(b);
69
70        if (count != 2) {
71            throw new IllegalStateException("Did not call the methods properly");
72        }
73    }
74
75}
76