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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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229
test/jdk/java/lang/String/UnicodeCasingTest.java Normal file
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/*
* Copyright (c) 2018, 2024, 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 4397357 6565620 6959267 7070436 7198195 8032446 8072600 8221431
* @summary Confirm normal case mappings are handled correctly.
* @library /lib/testlibrary/java/lang
* @run main/timeout=200 UnicodeCasingTest
*/
import java.io.BufferedReader;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Locale;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class UnicodeCasingTest {
private static boolean err = false;
// Locales which are used for testing
private static List<Locale> locales = new ArrayList<>();
static {
locales.add(Locale.of("az"));
locales.addAll(java.util.Arrays.asList(Locale.getAvailableLocales()));
}
// Default locale
private static String defaultLang;
// List for Unicode characters whose mappings are included in
// SpecialCasing.txt and mappings in UnicodeData.txt isn't applicable.
private static Map<String, String> excludeList = new HashMap<>();
public static void main(String[] args) {
UnicodeCasingTest specialCasingTest = new UnicodeCasingTest();
specialCasingTest.test();
}
private void test() {
Locale defaultLocale = Locale.getDefault();
BufferedReader in = null;
try {
// First, we create exclude lists of characters whose mappings exist
// in SpecialCasing.txt and mapping rules in UnicodeData.txt aren't
// applicable.
in = Files.newBufferedReader(UCDFiles.SPECIAL_CASING.toRealPath());
String line;
while ((line = in.readLine()) != null) {
if (line.length() == 0 || line.charAt(0) == '#') {
continue;
}
updateExcludeList(line);
}
in.close();
in = null;
int locale_num = locales.size();
for (int l = 0; l < locale_num; l++) {
Locale locale = locales.get(l);
Locale.setDefault(locale);
defaultLang = locale.getLanguage();
System.err.println("Testing on " + locale + " locale....");
in = Files.newBufferedReader(UCDFiles.UNICODE_DATA.toRealPath());
while ((line = in.readLine()) != null) {
if (line.length() == 0 || line.charAt(0) == '#') {
continue;
}
test(line);
}
in.close();
in = null;
}
}
catch (IOException e) {
err = true;
e.printStackTrace();
}
finally {
if (in != null) {
try {
in.close();
}
catch (IOException e) {
}
}
Locale.setDefault(defaultLocale);
if (err) {
throw new RuntimeException("UnicodeCasingTest failed.");
} else {
System.out.println("*** UnicodeCasingTest passed.");
}
}
}
private void updateExcludeList(String line) {
int index = line.indexOf('#');
if (index != -1) {
line = line.substring(0, index);
}
String lang = null;
String condition = null;
String[] fields = line.split("; ");
// If the given character is mapped to multiple characters under the
// normal condition, add it to the exclude list.
if (fields.length == 4) {
excludeList.put(fields[0], "all");
} else if (fields.length == 5) {
if (fields[4].length() == 2) { /// locale
if (excludeList.get(fields[0]) == null) {
excludeList.put(fields[0], fields[4]);
}
}
}
}
private void test(String line) {
String[] fields = line.split(";", 15);
String orig = convert(fields[0]);
String lang = excludeList.get(fields[0]);
if (!"all".equals(lang) && !defaultLang.equals(lang)) {
if (fields[12].length() == 0) {
testUpperCase(orig, convert(fields[0]));
} else {
testUpperCase(orig, convert(fields[12]));
}
if (fields[13].length() == 0) {
testLowerCase(orig, convert(fields[0]));
} else {
testLowerCase(orig, convert(fields[13]));
}
}
}
private void testUpperCase(String orig, String expected) {
String got = orig.toUpperCase();
// Ugly workaround for special mappings for az and tr locales....
if (orig.equals("\u0069") &&
(defaultLang.equals("az") || defaultLang.equals("tr"))) {
expected = "\u0130";
}
if (!expected.equals(got)) {
err = true;
System.err.println("toUpperCase(" +
") failed.\n\tOriginal: " + toString(orig) +
"\n\tGot: " + toString(got) +
"\n\tExpected: " + toString(expected));
}
}
private void testLowerCase(String orig, String expected) {
String got = orig.toLowerCase();
// Ugly workaround for special mappings for az and tr locales....
if (orig.equals("\u0049") &&
(defaultLang.equals("az") || defaultLang.equals("tr"))) {
expected = "\u0131";
}
if (!expected.equals(got)) {
err = true;
System.err.println("toLowerCase(" +
") failed.\n\tOriginal: " + toString(orig) +
"\n\tGot: " + toString(got) +
"\n\tExpected: " + toString(expected));
}
}
StringBuilder sb = new StringBuilder();
private String convert(String str) {
sb.setLength(0);
String[] tokens = str.split(" ");
for (String token : tokens) {
int j = Integer.parseInt(token, 16);
if (j < Character.MIN_SUPPLEMENTARY_CODE_POINT) {
sb.append((char)j);
} else {
sb.append(Character.toChars(j));
}
}
return sb.toString();
}
private String toString(String str) {
sb.setLength(0);
int len = str.length();
for (int i = 0; i < len; i++) {
sb.append("0x").append(Integer.toHexString(str.charAt(i)).toUpperCase()).append(" ");
}
return sb.toString();
}
}