Wed, 26 Jan 2011 13:45:25 -0800
7013272: Automatically generate info about how compiler resource keys are used
Reviewed-by: mcimadamore
1 /*
2 * Copyright (c) 2003, 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 */
24 /*
25 * @test
26 * @bug 4912795
27 * @summary AbstractMethodError throws if not redeclare abstract iterator() method
28 * @author gafter
29 */
31 import java.util.AbstractCollection;
32 import java.util.Collection;
33 import java.util.Iterator;
35 interface Q<E> extends Collection<E> {}
37 abstract class AbstractQ<E> extends AbstractCollection<E> implements Q<E> {
38 // Uncomment this to avoid the AbstractMethodError:
39 //public abstract Iterator<E> iterator();
40 }
42 class ConcreteQ<E> extends AbstractQ<E> {
43 public int size() { return 0; }
44 public Iterator<E> iterator() { return null; }
45 }
47 public class SuperfluousAbstract {
48 public static void main(String[] args) {
49 try {
50 Q<Integer> q = new ConcreteQ<Integer>() ;
51 for (Integer i : q) {}
52 }
53 catch (AbstractMethodError e) {
54 e.printStackTrace(System.err);
55 }
56 catch (NullPointerException e) {
57 // expected, since iterator() returns null
58 }
59 }
60 }