test/tools/javac/cast/4916620/T4916620.java

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1 /*
2 * Copyright (c) 2005, 2006, 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 4916620
27 * @summary legal cast is rejected
28 * @author Christian Plesner Hansen
29 * @compile/fail -Xlint:unchecked -Werror T4916620.java
30 * @compile -Xlint:unchecked T4916620.java
31 */
32
33 public class T4916620 {
34 static class BB<T, S> { }
35 static class BD<T> extends BB<T, T> { }
36
37 void f() {
38 BD<Number> bd = new BD<Number>();
39 BB<? extends Number, ? super Integer> bb = bd;
40 Object o = (BD<Number>) bb;
41 }
42 }

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