CheckNoClassCastException.java revision 2813:2d2baba27992 
1/*
2 * Copyright (c) 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 8069265
27 * @summary ClassCastException when compiled with JDK 9b08+, JDK8 compiles OK.
28 * @run main CheckNoClassCastException
29 */
30import java.util.*;
31
32public class CheckNoClassCastException {
33    static String result = "";
34    public static void main(String[] args) {
35        ListFail.main(null);
36        MapFail.main(null);
37        if (!result.equals("ListFailDoneMapFailDone"))
38            throw new AssertionError("Incorrect result");
39    }
40}
41
42class ListFail {
43    static interface Foo {
44    }
45
46    public static void main(String[] args) {
47        List<Date> list = new ArrayList<>();
48        list.add(new Date());
49
50        List<Foo> cList = (List<Foo>) (List<?>) list;
51        Date date = (Date) cList.get(0);
52        CheckNoClassCastException.result += "ListFailDone";
53    }
54}
55
56
57class MapFail {
58    static interface Foo {
59    }
60
61    public static void main(String[] args) {
62        Map<String,Date> aMap = new HashMap<>();
63        aMap.put("test",new Date());
64
65        Map<String,Foo> m = (Map<String,Foo>) (Map<?,?>) aMap;
66        Date q = (Date) m.get("test");
67        CheckNoClassCastException.result += "MapFailDone";
68    }
69}
70