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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/java/math/BigInteger/TestValueExact.java Normal file
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/*
* Copyright (c) 2011, 2025, 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 6371401
* @summary Tests of fooValueExact methods
*/
import java.math.BigInteger;
public class TestValueExact {
public static void main(String... args) {
int errors = 0;
errors += testLongValueExact();
errors += testIntValueExact();
errors += testShortValueExact();
errors += testByteValueExact();
if (errors > 0)
throw new RuntimeException();
}
private static int testLongValueExact() {
int errors = 0;
BigInteger[] inRange = {
BigInteger.valueOf(Long.MIN_VALUE),
BigInteger.ZERO,
BigInteger.valueOf(Long.MAX_VALUE)
};
BigInteger[] outOfRange = {
BigInteger.valueOf(Long.MIN_VALUE).subtract(BigInteger.ONE),
BigInteger.valueOf(Long.MAX_VALUE).add(BigInteger.ONE)
};
for (BigInteger bi : inRange) {
if (bi.longValueExact() != bi.longValue()) {
System.err.println("Mismatching int conversion for " + bi);
errors++;
}
}
for (BigInteger bi : outOfRange) {
try {
long value = bi.longValueExact();
System.err.println("Failed to get expected exception on " +
bi + " got " + value);
errors++;
} catch(ArithmeticException ae) {
; // Expected
}
}
return errors;
}
private static int testIntValueExact() {
int errors = 0;
BigInteger[] inRange = {
BigInteger.valueOf(Integer.MIN_VALUE),
BigInteger.ZERO,
BigInteger.ONE,
BigInteger.TEN,
BigInteger.valueOf(Integer.MAX_VALUE)
};
BigInteger[] outOfRange = {
BigInteger.valueOf((long)Integer.MIN_VALUE - 1),
BigInteger.valueOf((long)Integer.MAX_VALUE + 1)
};
for (BigInteger bi : inRange) {
if (bi.intValueExact() != bi.intValue()) {
System.err.println("Mismatching int conversion for " + bi);
errors++;
}
}
for (BigInteger bi : outOfRange) {
try {
int value = bi.intValueExact();
System.err.println("Failed to get expected exception on " +
bi + " got " + value);
errors++;
} catch(ArithmeticException ae) {
; // Expected
}
}
return errors;
}
private static int testShortValueExact() {
int errors = 0;
BigInteger[] inRange = {
BigInteger.valueOf(Short.MIN_VALUE),
BigInteger.ZERO,
BigInteger.ONE,
BigInteger.TEN,
BigInteger.valueOf(Short.MAX_VALUE)
};
BigInteger[] outOfRange = {
BigInteger.valueOf((long)Integer.MIN_VALUE - 1),
BigInteger.valueOf((long)Integer.MIN_VALUE),
BigInteger.valueOf( (int)Short.MIN_VALUE - 1),
BigInteger.valueOf( (int)Short.MAX_VALUE + 1),
BigInteger.valueOf((long)Integer.MAX_VALUE),
BigInteger.valueOf((long)Integer.MAX_VALUE + 1)
};
for (BigInteger bi : inRange) {
if (bi.shortValueExact() != bi.shortValue()) {
System.err.println("Mismatching short conversion for " + bi);
errors++;
}
}
for (BigInteger bi : outOfRange) {
try {
int value = bi.shortValueExact();
System.err.println("Failed to get expected exception on " +
bi + " got " + value);
errors++;
} catch(ArithmeticException ae) {
; // Expected
}
}
return errors;
}
private static int testByteValueExact() {
int errors = 0;
BigInteger[] inRange = {
BigInteger.valueOf(Byte.MIN_VALUE),
BigInteger.valueOf(0),
BigInteger.ONE,
BigInteger.TEN,
BigInteger.valueOf(Byte.MAX_VALUE)
};
BigInteger[] outOfRange = {
BigInteger.valueOf((long)Integer.MIN_VALUE - 1),
BigInteger.valueOf((long)Integer.MIN_VALUE),
BigInteger.valueOf( (int)Short.MIN_VALUE - 1),
BigInteger.valueOf( (int)Short.MIN_VALUE),
BigInteger.valueOf( (int)Byte.MIN_VALUE - 1),
BigInteger.valueOf( (int)Byte.MAX_VALUE + 1),
BigInteger.valueOf( (int)Short.MAX_VALUE + 1),
BigInteger.valueOf( (int)Short.MAX_VALUE),
BigInteger.valueOf((long)Integer.MAX_VALUE),
BigInteger.valueOf((long)Integer.MAX_VALUE + 1)
};
for (BigInteger bi : inRange) {
if (bi.byteValueExact() != bi.byteValue()) {
System.err.println("Mismatching byte conversion for " + bi);
errors++;
}
}
for (BigInteger bi : outOfRange) {
try {
int value = bi.byteValueExact();
System.err.println("Failed to get expected exception on " +
bi + " got " + value);
errors++;
} catch(ArithmeticException ae) {
; // Expected
}
}
return errors;
}
}