ContainsValue.java revision 12745:f068a4ffddd2 
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 4212425
27 * @summary TreeMap.containsValue throws NullPointerExc for empty TreeMap
28 */
29
30import java.util.*;
31
32public class ContainsValue {
33    public static void main (String[] args) {
34        Map map = new TreeMap();
35
36        if (map.containsValue ("gemutlichkeit"))
37            throw new RuntimeException("containsValue optimistic (non-null)");
38
39        if (map.containsValue (null))
40            throw new RuntimeException("containsValue optimistic (null)");
41
42        map.put("a", null);
43        map.put("b", "gemutlichkeit");
44
45        if (!map.containsValue ("gemutlichkeit"))
46            throw new RuntimeException("containsValue pessimistic (non-null)");
47
48        if (!map.containsValue (null))
49            throw new RuntimeException("containsValue pessimistic (null)");
50    }
51}
52