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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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82
test/jdk/java/util/LinkedList/Clone.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 4216997
* @summary Cloning a subclass of LinkedList results in an object that isn't
* an instance of the subclass. The same applies to TreeSet and
* TreeMap.
*/
import java.util.LinkedList;
import java.util.TreeMap;
import java.util.TreeSet;
public class Clone {
public static void main(String[] args) {
LinkedList2 l = new LinkedList2();
LinkedList2 lClone = (LinkedList2) l.clone();
if (!(l.equals(lClone) && lClone.equals(l)))
throw new RuntimeException("LinkedList.clone() is broken 1.");
l.add("a");
lClone = (LinkedList2) l.clone();
if (!(l.equals(lClone) && lClone.equals(l)))
throw new RuntimeException("LinkedList.clone() is broken 2.");
l.add("b");
lClone = (LinkedList2) l.clone();
if (!(l.equals(lClone) && lClone.equals(l)))
throw new RuntimeException("LinkedList.clone() is broken 2.");
TreeSet2 s = new TreeSet2();
TreeSet2 sClone = (TreeSet2) s.clone();
if (!(s.equals(sClone) && sClone.equals(s)))
throw new RuntimeException("TreeSet.clone() is broken.");
s.add("a");
sClone = (TreeSet2) s.clone();
if (!(s.equals(sClone) && sClone.equals(s)))
throw new RuntimeException("TreeSet.clone() is broken.");
s.add("b");
sClone = (TreeSet2) s.clone();
if (!(s.equals(sClone) && sClone.equals(s)))
throw new RuntimeException("TreeSet.clone() is broken.");
TreeMap2 m = new TreeMap2();
TreeMap2 mClone = (TreeMap2) m.clone();
if (!(m.equals(mClone) && mClone.equals(m)))
throw new RuntimeException("TreeMap.clone() is broken.");
m.put("a", "b");
mClone = (TreeMap2) m.clone();
if (!(m.equals(mClone) && mClone.equals(m)))
throw new RuntimeException("TreeMap.clone() is broken.");
m.put("c", "d");
mClone = (TreeMap2) m.clone();
if (!(m.equals(mClone) && mClone.equals(m)))
throw new RuntimeException("TreeMap.clone() is broken.");
}
private static class LinkedList2 extends LinkedList {}
private static class TreeSet2 extends TreeSet {}
private static class TreeMap2 extends TreeMap {}
}