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  */

    30 import java.util.*;

    31 

    32 public 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 

    42 class 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 

    57 class 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 }