Capture5.java revision 553:9d9f26857129 
1/*
2 * Copyright (c) 2004, 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 4916650
27 * @summary wildcards versus recursive F-bounds
28 * @author Peter von der Ahe
29 *
30 * @compile Capture5.java
31 */
32
33package capture5;
34
35interface R<T extends R<T>> {}
36class A implements R<A> {}
37class B<T> implements R<B<T>> {}
38class C implements R<C> {}
39
40class Recursive {
41    <t> t choose(t x, t y) {
42        return x;
43    }
44    void f(boolean b1, boolean b2, boolean b3, A a, B<String> b, C c) {
45        R<? extends R<? extends R<? extends R<? extends R<?>>>>> r = null;
46        r = b2 ? a : b;
47        r = b1 ? (b2 ? a : b) : (b3 ? b : c);
48        r = choose(a,c);
49        r = choose(choose(a,b), choose(b,c));
50    }
51}
52