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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.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
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test/jdk/sun/text/IntHashtable/patch-src/java.base/java/text/Bug4170614Test.java Normal file
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/*
* Copyright (c) 1999, 2022, 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.
*/
/*
* This file is available under and governed by the GNU General Public
* License version 2 only, as published by the Free Software Foundation.
* However, the following notice accompanied the original version of this
* file and, per its terms, should not be removed:
*
* (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved
* (C) Copyright IBM Corp. 1996 - 1998 - All Rights Reserved
*
* Portions copyright (c) 2007 Sun Microsystems, Inc.
* All Rights Reserved.
*
* The original version of this source code and documentation
* is copyrighted and owned by Taligent, Inc., a wholly-owned
* subsidiary of IBM. These materials are provided under terms
* of a License Agreement between Taligent and Sun. This technology
* is protected by multiple US and International patents.
*
* This notice and attribution to Taligent may not be removed.
* Taligent is a registered trademark of Taligent, Inc.
*
* Permission to use, copy, modify, and distribute this software
* and its documentation for NON-COMMERCIAL purposes and without
* fee is hereby granted provided that this copyright notice
* appears in all copies. Please refer to the file "copyright.html"
* for further important copyright and licensing information.
*
* SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
* THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
*
*/
/* @test
* @bug 4170614
* @summary Test internal hashCode() and equals() functions
* @library ../../../../patch-src
* @build java.base/java.text.Bug4170614Test
* @run main java.base/java.text.Bug4170614Test
*/
package java.text;
import sun.text.IntHashtable;
/**
* This class tests some internal hashCode() functions.
* Bug #4170614 complained that we had two internal classes that
* break the invariant that if a.equals(b) than a.hashCode() ==
* b.hashCode(). This is because these classes overrode equals()
* but not hashCode(). These are both purely internal classes, and
* the library itself doesn't actually call hashCode(), so this isn't
* actually causing anyone problems yet. But if these classes are
* ever exposed in the API, their hashCode() methods need to work right.
* PatternEntry will never be exposed in the API, but IntHashtable
* might be.
* @author Richard Gillam
*/
public class Bug4170614Test {
public static void main(String[] args) throws Exception {
testIntHashtable();
testPatternEntry();
}
public static void testIntHashtable() throws Exception {
IntHashtable fred = new IntHashtable();
fred.put(1, 10);
fred.put(2, 20);
fred.put(3, 30);
IntHashtable barney = new IntHashtable();
barney.put(1, 10);
barney.put(3, 30);
barney.put(2, 20);
IntHashtable homer = new IntHashtable();
homer.put(3, 30);
homer.put(1, 10);
homer.put(7, 900);
if (fred.equals(barney)) {
System.out.println("fred.equals(barney)");
}
else {
System.out.println("!fred.equals(barney)");
}
System.out.println("fred.hashCode() == " + fred.hashCode());
System.out.println("barney.hashCode() == " + barney.hashCode());
if (!fred.equals(barney)) {
throw new Exception("equals() failed on two hashtables that are equal");
}
if (fred.hashCode() != barney.hashCode()) {
throw new Exception("hashCode() failed on two hashtables that are equal");
}
System.out.println();
if (fred.equals(homer)) {
System.out.println("fred.equals(homer)");
}
else {
System.out.println("!fred.equals(homer)");
}
System.out.println("fred.hashCode() == " + fred.hashCode());
System.out.println("homer.hashCode() == " + homer.hashCode());
if (fred.equals(homer)) {
throw new Exception("equals() failed on two hashtables that are not equal");
}
if (fred.hashCode() == homer.hashCode()) {
throw new Exception("hashCode() failed on two hashtables that are not equal");
}
System.out.println();
System.out.println("testIntHashtable() passed.\n");
}
public static void testPatternEntry() throws Exception {
PatternEntry fred = new PatternEntry(1,
new StringBuilder("hello"),
new StringBuilder("up"));
PatternEntry barney = new PatternEntry(1,
new StringBuilder("hello"),
new StringBuilder("down"));
// (equals() only considers the "chars" field, so fred and barney are equal)
PatternEntry homer = new PatternEntry(1,
new StringBuilder("goodbye"),
new StringBuilder("up"));
if (fred.equals(barney)) {
System.out.println("fred.equals(barney)");
}
else {
System.out.println("!fred.equals(barney)");
}
System.out.println("fred.hashCode() == " + fred.hashCode());
System.out.println("barney.hashCode() == " + barney.hashCode());
if (!fred.equals(barney)) {
throw new Exception("equals() failed on two hashtables that are equal");
}
if (fred.hashCode() != barney.hashCode()) {
throw new Exception("hashCode() failed on two hashtables that are equal");
}
System.out.println();
if (fred.equals(homer)) {
System.out.println("fred.equals(homer)");
}
else {
System.out.println("!fred.equals(homer)");
}
System.out.println("fred.hashCode() == " + fred.hashCode());
System.out.println("homer.hashCode() == " + homer.hashCode());
if (fred.equals(homer)) {
throw new Exception("equals() failed on two hashtables that are not equal");
}
if (fred.hashCode() == homer.hashCode()) {
throw new Exception("hashCode() failed on two hashtables that are not equal");
}
System.out.println();
System.out.println("testPatternEntry() passed.\n");
}
}