TargetType69.java revision 2868:816bd88d33a8 
1/*
2 * Copyright (c) 2013, 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 8010303 8062373
27 * @summary Graph inference: missing incorporation step causes spurious inference error
28 * @compile TargetType69.java
29 */
30import java.util.*;
31
32class TargetType69 {
33
34    interface Function<X,Y> {
35        Y m(X x);
36    }
37
38    abstract class TabulationAssertion<T, U> { }
39
40    class GroupedMapAssertion<K, M1 extends Map<K, ?>> extends TabulationAssertion<Integer, M1> {
41        GroupedMapAssertion(Function<Integer, K> classifier) { }
42    }
43
44
45    <T, M2 extends Map> void exerciseMapTabulation(Function<T, ? extends M2> collector,
46                                                             TabulationAssertion<T, M2> assertion)  { }
47
48    void test(Function<Integer, Integer> classifier, Function<Integer, Map<Integer, List<Integer>>> coll) {
49        exerciseMapTabulation(coll, new GroupedMapAssertion<>(classifier));
50        exerciseMapTabulation(coll, new GroupedMapAssertion<>(classifier) {});
51    }
52}
53