1/*
2 * Copyright (c) 1999, 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 4189896
27 * @summary AbstractList iterators previously checked for co-modification
28 *          *after* the set/add/remove operations were performed.
29 */
30
31import java.util.*;
32
33public class FailFastIterator {
34    public static void main(String[] args) throws Exception {
35        List orig = new ArrayList(100);
36        for (int i=0; i<100; i++)
37            orig.add(new Integer(i));
38
39        List copy = new ArrayList(orig);
40        try {
41            ListIterator i = copy.listIterator();
42            i.next();
43            copy.remove(99);
44            copy.add(new Integer(99));
45            i.remove();
46            throw new Exception("remove: iterator didn't fail fast");
47        } catch (ConcurrentModificationException e) {
48        }
49        if (!copy.equals(orig))
50            throw new Exception("remove: iterator didn't fail fast enough");
51
52        try {
53            ListIterator i = copy.listIterator();
54            i.next();
55            copy.remove(99);
56            copy.add(new Integer(99));
57            i.set(new Integer(666));
58            throw new Exception("set: iterator didn't fail fast");
59        } catch (ConcurrentModificationException e) {
60        }
61        if (!copy.equals(orig))
62            throw new Exception("set: iterator didn't fail fast enough");
63
64        try {
65            ListIterator i = copy.listIterator();
66            copy.remove(99);
67            copy.add(new Integer(99));
68            i.add(new Integer(666));
69            throw new Exception("add: iterator didn't fail fast");
70        } catch (ConcurrentModificationException e) {
71        }
72        if (!copy.equals(orig))
73            throw new Exception("add: iterator didn't fail fast enough");
74    }
75}
76