1 /*
 2  * Copyright (c) 2014, 2026, 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     8047795
27  * @summary Ensure that replaceAll operator cannot add bad elements
28  * @author  Mike Duigou
29  * @library /test/lib
30  */
31 
32 import jdk.test.lib.valueclass.VClass;
33 import java.util.*;
34 import java.util.function.BiFunction;
35 
36 public class CheckedMapReplaceAll {
37 
38     public static void main(String[] args) {
39         Map<Integer,Double> unwrapped = new HashMap<>();
40         unwrapped.put(1, 1.0);
41         unwrapped.put(2, 2.0);
42         unwrapped.put(3, 3.0);
43 
44         Map<Integer,Double> wrapped = Collections.checkedMap(unwrapped, Integer.class, Double.class);
45 
46         BiFunction evil = (k, v) -> (((int)k) % 2 != 0) ? v : "evil";
47 
48         try {
49             wrapped.replaceAll(evil);
50             System.out.printf("Bwahaha! I have defeated you! %s\n", wrapped);
51             throw new RuntimeException("String added to checked Map<Integer,Double>");
52         } catch (ClassCastException thwarted) {
53             thwarted.printStackTrace(System.out);
54             System.out.println("Curses! Foiled again!");
55         }
56 
57         Map<VClass,VClass> vMap = Collections.checkedMap(new HashMap<>(), VClass.class, VClass.class);
58         vMap.put(new VClass(1, new int[] { 1 }), new VClass(2, new int[] { 2 }));
59         vMap.replaceAll((k, v) -> new VClass(v.x + 1, new int[] { v.x + 1 }));
60         if (!vMap.get(new VClass(1, new int[] { 1 })).equals(new VClass(3, new int[] { 3 })))
61             throw new RuntimeException("value checkedMap replaceAll failed");
62 
63         Map raw = Collections.checkedMap(new HashMap<VClass,VClass>(), VClass.class, VClass.class);
64         raw.put(new VClass(1, new int[] { 1 }), new VClass(2, new int[] { 2 }));
65         try {
66             raw.replaceAll((k, v) -> "not a Tuple");
67             throw new RuntimeException("value checkedMap replaceAll accepted wrong type");
68         } catch (ClassCastException expected) { }
69     }
70 }
--- EOF ---