1 /*

     2  * Copyright (c) 2003, 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  * @summary Test subtyping for wildcards with related type bounds.

    27  *

    28  * @compile/fail  AssignmentDifferentTypes3.java

    29  */

    30 

    31 public class AssignmentDifferentTypes3 {

    32 

    33     public static void main(String[] args) {

    34         Ref<Der> derexact = null;

    35         Ref<Base> baseexact = null;

    36         Ref<? extends Der> derext = null;

    37         Ref<? extends Base> baseext = null;

    38         Ref<? super Der> dersuper = null;

    39         Ref<? super Base> basesuper = null;

    40 

    41         baseexact = derexact;   // <<fail>> <Base> = <Der>

    42     }

    43 }

    44 

    45 class Ref<T> {}

    46 class Base {}

    47 class Der extends Base {}