1/*
2 * Copyright (c) 2011, 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 * Portions Copyright (c) 2011 IBM Corporation
26 */
27
28/*
29 * @test
30 * @bug 6312706
31 * @summary Iterator.remove() from Map.entrySet().iterator() invalidates returned Entry.
32 * @author Neil Richards <neil.richards@ngmr.net>, <neil_richards@uk.ibm.com>
33 */
34
35import java.util.EnumMap;
36import java.util.Iterator;
37import java.util.Map;
38
39public class EntrySetIteratorRemoveInvalidatesEntry {
40    static enum TestEnum { e00, e01, e02 }
41
42    public static void main(String[] args) throws Exception {
43        final EnumMap<TestEnum, String> enumMap = new EnumMap<>(TestEnum.class);
44
45        for (TestEnum e : TestEnum.values()) {
46            enumMap.put(e, e.name());
47        }
48
49        Iterator<Map.Entry<TestEnum, String>> entrySetIterator =
50            enumMap.entrySet().iterator();
51        Map.Entry<TestEnum, String> entry = entrySetIterator.next();
52
53        entrySetIterator.remove();
54
55        try {
56            entry.getKey();
57            throw new RuntimeException("Test FAILED: Entry not invalidated by removal.");
58        } catch (Exception e) { }
59    }
60}
61