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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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test/jdk/java/lang/module/ClassFileVersionsTest.java Normal file
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/*
* Copyright (c) 2017, 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
* @modules java.base/jdk.internal.module
* @library /test/lib
* @build jdk.test.lib.util.ModuleInfoWriter
* @run testng ClassFileVersionsTest
* @summary Test parsing of module-info.class with different class file versions
*/
import java.lang.classfile.ClassFile;
import java.lang.module.InvalidModuleDescriptorException;
import java.lang.module.ModuleDescriptor;
import java.lang.module.ModuleDescriptor.Requires.Modifier;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import static java.lang.module.ModuleDescriptor.Requires.Modifier.*;
import jdk.test.lib.util.ModuleInfoWriter;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import static org.testng.Assert.*;
public class ClassFileVersionsTest {
private static final int PREVIEW_MINOR_VERSION =
ClassFile.PREVIEW_MINOR_VERSION;
private static final int FEATURE;
static {
FEATURE = Runtime.version().feature();
assert FEATURE >= 10;
}
// major, minor, modifiers for requires java.base
@DataProvider(name = "supported")
public Object[][] supported() {
/*
* There are four test cases for JDK 9, one test case
* for each subsequent JDK version from JDK 10 to the current
* feature release, and two tests for the current release with
* a preview flag set, for a total of (4 + (FEATURE - 9) + 2)
* rows.
*/
List<Object[]> result = new ArrayList<>(4 + (FEATURE - 9) + 2);
// Class file version of JDK 9 is 53.0
result.add(new Object[]{ 53, 0, Set.of()});
result.add(new Object[]{ 53, 0, Set.of(STATIC) });
result.add(new Object[]{ 53, 0, Set.of(TRANSITIVE) });
result.add(new Object[]{ 53, 0, Set.of(STATIC, TRANSITIVE) });
// Major class file version of JDK N is 44 + n. Create rows
// for JDK 10 through FEATURE.
for (int i = 10; i <= FEATURE; i++) {
result.add(new Object[]{ 44 + i, 0, Set.of()});
result.add(new Object[]{ 44 + i, 0, Set.of(TRANSITIVE)});
}
result.add(new Object[]{ 44 + FEATURE,
PREVIEW_MINOR_VERSION,
Set.of()});
result.add(new Object[]{ 44 + FEATURE,
PREVIEW_MINOR_VERSION,
Set.of(TRANSITIVE) });
return result.toArray(s -> new Object[s][]);
}
// major, minor, modifiers for requires java.base
@DataProvider(name = "unsupported")
public Object[][] unsupported() {
/*
* There are three test cases for releases prior to JDK 9,
* three test cases for each JDK version from JDK 10 to the
* current feature release, two tests for the current release with
* the preview flag set, plus one addition test case for
* the next release for a total of (3 + (FEATURE - 9) * 3 + 2 + 1)
* rows.
*/
List<Object[]> result = new ArrayList<>(3 + (FEATURE - 9) * 3 + 2 + 1);
result.add(new Object[]{50, 0, Set.of()}); // JDK 6
result.add(new Object[]{51, 0, Set.of()}); // JDK 7
result.add(new Object[]{52, 0, Set.of()}); // JDK 8
for (int i = 10; i <= FEATURE ; i++) {
// Major class file version of JDK N is 44+n
result.add(new Object[]{i + 44, 0, Set.of(STATIC)});
result.add(new Object[]{i + 44, 0, Set.of(STATIC, TRANSITIVE)});
}
result.add(new Object[]{FEATURE + 44,
PREVIEW_MINOR_VERSION,
Set.of(STATIC)});
result.add(new Object[]{FEATURE + 44,
PREVIEW_MINOR_VERSION,
Set.of(STATIC, TRANSITIVE)});
result.add(new Object[]{FEATURE+1+44, 0, Set.of()});
return result.toArray(s -> new Object[s][]);
}
@Test(dataProvider = "supported")
public void testSupported(int major, int minor, Set<Modifier> ms) {
ModuleDescriptor descriptor = ModuleDescriptor.newModule("foo")
.requires(ms, "java.base")
.build();
ByteBuffer bb = ModuleInfoWriter.toByteBuffer(descriptor);
classFileVersion(bb, major, minor);
descriptor = ModuleDescriptor.read(bb);
assertEquals(descriptor.name(), "foo");
}
@Test(dataProvider = "unsupported",
expectedExceptions = InvalidModuleDescriptorException.class)
public void testUnsupported(int major, int minor, Set<Modifier> ms) {
ModuleDescriptor descriptor = ModuleDescriptor.newModule("foo")
.requires(ms, "java.base")
.build();
ByteBuffer bb = ModuleInfoWriter.toByteBuffer(descriptor);
classFileVersion(bb, major, minor);
// throws InvalidModuleDescriptorException
ModuleDescriptor.read(bb);
}
private void classFileVersion(ByteBuffer bb, int major, int minor) {
bb.putShort(4, (short) minor);
bb.putShort(6, (short) major);
}
}