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.
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23 
24 /*
25  * @test
26  * @bug 4892571
27  * @summary generics: type cast with instance of
28  * @author gafter
29  *
30  * @compile  -Werror InstanceOf.java
31  */
32 
33 class InstanceOf<T> {
34     static interface I1<T> {
toArray()35         public T[] toArray();
36     }
37     static interface I2<T> extends I1<T> {
toArray()38         public T[] toArray();
39     }
40     static interface I3<T> extends I2<T> {    }
InstanceOf()41     InstanceOf() {
42         I1<T> inv = null;
43         I1<? extends T> cov = null;
44         I1<? super T> con = null;
45         boolean b;
46         b = inv instanceof I3; // <<pass>>
47         b = cov instanceof I3; // <<pass>>
48         b = con instanceof I3; // <<pass>>
49     }
50 }
51