|
1 /* |
|
2 * Copyright 2005-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
|
20 * CA 95054 USA or visit www.sun.com if you need additional information or |
|
21 * have any questions. |
|
22 */ |
|
23 |
|
24 /** |
|
25 * @test |
|
26 * @bug 6365166 |
|
27 * @summary javac (generic) unable to resolve methods |
|
28 * @ignore waiting for 6365166 |
|
29 * @compile NewTest.java |
|
30 */ |
|
31 |
|
32 import java.util.*; |
|
33 |
|
34 public class NewTest<A,B> { |
|
35 private List<A> toAdd; |
|
36 |
|
37 public NewTest(List<A> toAdd) { |
|
38 this.toAdd = toAdd; |
|
39 } |
|
40 |
|
41 private List<A> getRelated(B b) { |
|
42 //some application logic |
|
43 //for demo |
|
44 return toAdd; |
|
45 } |
|
46 |
|
47 @SuppressWarnings("unchecked") |
|
48 public <L extends List<? super A>,LF extends Factory<L>> L addOrCreate4(B b,L l,LF lf) { |
|
49 if (l == null) { |
|
50 l = lf.create(); |
|
51 } |
|
52 ((List<? super A>)l).addAll(getRelated(b)); //to get round the compiler bug |
|
53 return l; |
|
54 } |
|
55 |
|
56 public static class ListFactory<T> implements Factory<List<T>>{ |
|
57 public List<T> create() { |
|
58 return new ArrayList<T>(); |
|
59 } |
|
60 } |
|
61 public static interface Factory<T> { |
|
62 public T create(); |
|
63 } |
|
64 |
|
65 public static void main(String ... args) { |
|
66 ListFactory<Number> lf = new ListFactory<Number>(); |
|
67 List<Long> longs = new ArrayList<Long>(); |
|
68 longs.add(new Long(1)); |
|
69 NewTest<Long,Number> test = new NewTest<Long,Number>(longs); |
|
70 |
|
71 List<Number> ret4 = null; |
|
72 |
|
73 ret4 = test.addOrCreate4(1, ret4,lf); |
|
74 |
|
75 } |
|
76 } |