test/tools/javac/generics/inference/6650759/T6650759i.java

changeset 0
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1 /*
2 * Copyright (c) 2009, 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 6650759
27 * @summary Inference of formal type parameter (unused in formal parameters) is not performed
28 * @compile T6650759i.java
29 */
30 public class T6650759i {
31
32 static class A<X extends A, Y extends B> {}
33
34 static class B<X extends B> {}
35
36 static class C<X extends A<X, Y>, Y extends B<Y>> {}
37
38 static <U extends A<U, V>, V extends B<V>> Class<U> m1(U x) {
39 return null;
40 }
41
42 static <U extends A<U, V>, V extends B<V>> U m2(Class<U> c) {
43 return null;
44 }
45
46 static <W, U extends A<U, V>, V extends B<V>> W m3(Class<W> c1, C<U, V> c2) {
47 return null;
48 }
49
50 static <U extends A<U, V>, V extends B<V>> void test(U u, C<U, V> c) {
51 m2(m1(u));
52 U res = m3(m1(u), c);
53 }
54 }

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