T6650759m.java revision 2890:e903011dafc7 
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 8078024
27 * @summary Inference of formal type parameter (unused in formal parameters) is not performed
28 * @compile/fail/ref=T6650759m.out T6650759m.java -XDrawDiagnostics
29 */
30
31import java.util.*;
32
33class T6650759m {
34    <Z> List<? super Z> m(List<? extends List<? super Z>> ls) {
35        return ls.get(0);
36    }
37
38    void test() {
39        ArrayList<ArrayList<Integer>> lli = new ArrayList<ArrayList<Integer>>();
40        ArrayList<Integer> li = new ArrayList<Integer>();
41        li.add(2);
42        lli.add(li);
43        List<? super String> ls = m(lli); //here
44        ls.add("crash");
45        Integer i = li.get(1);
46    }
47}
48