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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
This commit is contained in:
russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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191
test/jdk/java/util/Collections/WrappedNull.java Normal file
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/*
* Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 4189641
* @summary Wrapping a null collection/array should blow up sooner
* rather than later
*/
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.SortedMap;
import java.util.SortedSet;
import java.util.TreeMap;
import java.util.TreeSet;
public class WrappedNull {
public static void main(String[] args) throws Exception {
boolean testSucceeded = false;
try {
List l = Arrays.asList(null);
}
catch (NullPointerException e) {
testSucceeded = true;
}
if (!testSucceeded)
throw new Exception("Arrays.asList");
testSucceeded = false;
try {
Collection c = Collections.unmodifiableCollection(null);
}
catch (NullPointerException e) {
testSucceeded = true;
}
if (!testSucceeded)
throw new Exception("unmodifiableCollection");
testSucceeded = false;
try {
Set c = Collections.unmodifiableSet(null);
}
catch (NullPointerException e) {
testSucceeded = true;
}
if (!testSucceeded)
throw new Exception("unmodifiableSet");
testSucceeded = false;
try {
List c = Collections.unmodifiableList(null);
}
catch (NullPointerException e) {
testSucceeded = true;
}
if (!testSucceeded)
throw new Exception("unmodifiableList");
testSucceeded = false;
try {
Map c = Collections.unmodifiableMap(null);
}
catch (NullPointerException e) {
testSucceeded = true;
}
if (!testSucceeded)
throw new Exception("unmodifiableMap");
testSucceeded = false;
try {
SortedSet c = Collections.unmodifiableSortedSet(null);
}
catch (NullPointerException e) {
testSucceeded = true;
}
if (!testSucceeded)
throw new Exception("unmodifiableSortedSet");
testSucceeded = false;
try {
SortedMap c = Collections.unmodifiableSortedMap(null);
}
catch (NullPointerException e) {
testSucceeded = true;
}
if (!testSucceeded)
throw new Exception("unmodifiableSortedMap");
testSucceeded = false;
try {
Collection c = Collections.synchronizedCollection(null);
}
catch (NullPointerException e) {
testSucceeded = true;
}
if (!testSucceeded)
throw new Exception("synchronizedCollection");
testSucceeded = false;
try {
Set c = Collections.synchronizedSet(null);
}
catch (NullPointerException e) {
testSucceeded = true;
}
if (!testSucceeded)
throw new Exception("synchronizedSet");
testSucceeded = false;
try {
List c = Collections.synchronizedList(null);
}
catch (NullPointerException e) {
testSucceeded = true;
}
if (!testSucceeded)
throw new Exception("synchronizedList");
testSucceeded = false;
try {
Map c = Collections.synchronizedMap(null);
}
catch (NullPointerException e) {
testSucceeded = true;
}
if (!testSucceeded)
throw new Exception("synchronizedMap");
testSucceeded = false;
try {
SortedSet c = Collections.synchronizedSortedSet(null);
}
catch (NullPointerException e) {
testSucceeded = true;
}
if (!testSucceeded)
throw new Exception("synchronizedSortedSet");
testSucceeded = false;
try {
SortedMap c = Collections.synchronizedSortedMap(null);
}
catch (NullPointerException e) {
testSucceeded = true;
}
if (!testSucceeded)
throw new Exception("synchronizedSortedMap");
// Make sure that non-null arguments don't throw exc.
List l = Arrays.asList(new Object[0]);
Collection c = Collections.unmodifiableCollection(
Collections.EMPTY_SET);
Set s = Collections.unmodifiableSet(Collections.EMPTY_SET);
l = Collections.unmodifiableList(Collections.EMPTY_LIST);
Map m = Collections.unmodifiableMap(Collections.EMPTY_MAP);
SortedSet ss = Collections.unmodifiableSortedSet(new TreeSet());
SortedMap sm = Collections.unmodifiableSortedMap(new TreeMap());
c = Collections.synchronizedCollection(Collections.EMPTY_SET);
s = Collections.synchronizedSet(Collections.EMPTY_SET);
l = Collections.synchronizedList(Collections.EMPTY_LIST);
m = Collections.synchronizedMap(Collections.EMPTY_MAP);
ss = Collections.synchronizedSortedSet(new TreeSet());
sm = Collections.synchronizedSortedMap(new TreeMap());
}
}