1 /*
2 * Copyright (c) 2014, 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 8053938
27 * @summary Ensure that replaceAll operator cannot add bad elements
28 * @author Mike Duigou
29 */
30
31 import java.util.*;
32 import java.util.function.UnaryOperator;
33
34 public class CheckedListReplaceAll {
35 public static void main(String[] args) {
36 List unwrapped = Arrays.asList(new Object[]{1, 2, 3});
37 List<Object> wrapped = Collections.checkedList(unwrapped, Integer.class);
38
39 UnaryOperator evil = e -> (((int) e) % 2 != 0) ? e : "evil";
40
41 try {
42 wrapped.replaceAll(evil);
43 System.out.printf("Bwahaha! I have defeated you! %s\n", wrapped);
44 throw new RuntimeException("String added to checked List<Integer>");
45 } catch (ClassCastException thwarted) {
46 thwarted.printStackTrace(System.out);
47 System.out.println("Curses! Foiled again!");
48 }
49
50 unwrapped = Arrays.asList(new Object[]{}); // Empty list
51 wrapped = Collections.checkedList(unwrapped, Integer.class);
52 try {
53 wrapped.replaceAll((UnaryOperator)null);
54 System.out.printf("Bwahaha! I have defeated you! %s\n", wrapped);
55 throw new RuntimeException("NPE not thrown when passed a null operator");
56 } catch (NullPointerException thwarted) {
57 thwarted.printStackTrace(System.out);
58 System.out.println("Curses! Foiled again!");
59 }
60 }
61 }
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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 8053938
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.UnaryOperator;
35
36 public class CheckedListReplaceAll {
37
38 public static void main(String[] args) {
39 List unwrapped = Arrays.asList(new Object[]{1, 2, 3});
40 List<Object> wrapped = Collections.checkedList(unwrapped, Integer.class);
41
42 UnaryOperator evil = e -> (((int) e) % 2 != 0) ? e : "evil";
43
44 try {
45 wrapped.replaceAll(evil);
46 System.out.printf("Bwahaha! I have defeated you! %s\n", wrapped);
47 throw new RuntimeException("String added to checked List<Integer>");
48 } catch (ClassCastException thwarted) {
49 thwarted.printStackTrace(System.out);
50 System.out.println("Curses! Foiled again!");
51 }
52
53 unwrapped = Arrays.asList(new Object[]{}); // Empty list
54 wrapped = Collections.checkedList(unwrapped, Integer.class);
55 try {
56 wrapped.replaceAll((UnaryOperator)null);
57 System.out.printf("Bwahaha! I have defeated you! %s\n", wrapped);
58 throw new RuntimeException("NPE not thrown when passed a null operator");
59 } catch (NullPointerException thwarted) {
60 thwarted.printStackTrace(System.out);
61 System.out.println("Curses! Foiled again!");
62 }
63
64 List<VClass> vList = Collections.checkedList(new ArrayList<VClass>(Arrays.asList(new VClass(1, new int[] { 1 }))), VClass.class);
65 vList.replaceAll(v -> new VClass(v.x + 1, new int[] { v.x + 1 }));
66 if (!vList.get(0).equals(new VClass(2, new int[] { 2 })))
67 throw new RuntimeException("value checkedList replaceAll failed");
68
69 List raw = Collections.checkedList(new ArrayList<VClass>(Arrays.asList(new VClass(1, new int[] { 1 }))), VClass.class);
70 try {
71 raw.replaceAll(e -> "not a Tuple");
72 throw new RuntimeException("value checkedList replaceAll accepted wrong type");
73 } catch (ClassCastException expected) { }
74 }
75 }
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