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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
commit 0a580b313d
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173
test/jdk/java/lang/reflect/Field/TestFieldReflectValueOf.java Normal file
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/*
* Copyright (c) 2014, 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 5043030
* @summary Verify that the method java.lang.reflect.Field.get(Object) makes
* use of the same caching mechanism as used for autoboxing
* when wrapping values of the primitive types.
* @author Andrej Golovnin
*/
import java.lang.reflect.Field;
public class TestFieldReflectValueOf {
@SuppressWarnings("unused")
private static boolean booleanStaticField;
@SuppressWarnings("unused")
private static byte byteStaticField;
@SuppressWarnings("unused")
private static char charStaticField;
@SuppressWarnings("unused")
private static int intStaticField;
@SuppressWarnings("unused")
private static long longStaticField;
@SuppressWarnings("unused")
private static short shortStaticField;
@SuppressWarnings("unused")
private static volatile boolean booleanStaticVolatileField;
@SuppressWarnings("unused")
private static volatile byte byteStaticVolatileField;
@SuppressWarnings("unused")
private static volatile char charStaticVolatileField;
@SuppressWarnings("unused")
private static volatile int intStaticVolatileField;
@SuppressWarnings("unused")
private static volatile long longStaticVolatileField;
@SuppressWarnings("unused")
private static volatile short shortStaticVolatileField;
@SuppressWarnings("unused")
private boolean booleanField;
@SuppressWarnings("unused")
private byte byteField;
@SuppressWarnings("unused")
private char charField;
@SuppressWarnings("unused")
private int intField;
@SuppressWarnings("unused")
private long longField;
@SuppressWarnings("unused")
private short shortField;
@SuppressWarnings("unused")
private volatile boolean booleanVolatileField;
@SuppressWarnings("unused")
private volatile byte byteVolatileField;
@SuppressWarnings("unused")
private volatile char charVolatileField;
@SuppressWarnings("unused")
private volatile int intVolatileField;
@SuppressWarnings("unused")
private volatile long longVolatileField;
@SuppressWarnings("unused")
private volatile short shortVolatileField;
public static void main(String[] args) {
testStaticFieldAccessors();
testStaticVolatileFieldAccessors();
testFieldAccessors();
testVolatileFieldAccessors();
}
private static void testStaticFieldAccessors() {
testFieldAccessors(true, false);
}
private static void testStaticVolatileFieldAccessors() {
testFieldAccessors(true, true);
}
private static void testFieldAccessors() {
testFieldAccessors(false, false);
}
private static void testVolatileFieldAccessors() {
testFieldAccessors(false, true);
}
private static void testFieldAccessors(boolean checkStatic,
boolean checkVolatile)
{
// Boolean#valueOf test
testField(Boolean.TYPE, Boolean.FALSE, checkStatic, checkVolatile);
testField(Boolean.TYPE, Boolean.TRUE, checkStatic, checkVolatile);
// Byte#valueOf test
for (int b = Byte.MIN_VALUE; b < (Byte.MAX_VALUE + 1); b++) {
testField(Byte.TYPE, Byte.valueOf((byte) b), checkStatic, checkVolatile);
}
// Character#valueOf test
for (char c = '\u0000'; c <= '\u007F'; c++) {
testField(Character.TYPE, Character.valueOf(c), checkStatic, checkVolatile);
}
// Integer#valueOf test
for (int i = -128; i <= 127; i++) {
testField(Integer.TYPE, Integer.valueOf(i), checkStatic, checkVolatile);
}
// Long#valueOf test
for (long l = -128L; l <= 127L; l++) {
testField(Long.TYPE, Long.valueOf(l), checkStatic, checkVolatile);
}
// Short#valueOf test
for (short s = -128; s <= 127; s++) {
testField(Short.TYPE, Short.valueOf(s), checkStatic, checkVolatile);
}
}
private static void testField(Class<?> primType, Object wrappedValue,
boolean checkStatic, boolean checkVolatile)
{
String fieldName = primType.getName();
if (checkStatic) {
fieldName += "Static";
}
if (checkVolatile) {
fieldName += "Volatile";
}
fieldName += "Field";
try {
Field field = TestFieldReflectValueOf.class.getDeclaredField(fieldName);
field.setAccessible(true);
TestFieldReflectValueOf obj = new TestFieldReflectValueOf();
field.set(obj, wrappedValue);
Object result = field.get(obj);
if (result != wrappedValue) {
throw new RuntimeException("The value " + wrappedValue
+ " is not cached for the type " + primType);
}
} catch ( NoSuchFieldException | SecurityException
| IllegalAccessException | IllegalArgumentException e)
{
throw new RuntimeException(e);
}
}
}