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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/lang/invoke/condy/BootstrapMethodJumboArgsTest.java Normal file
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/*
* Copyright (c) 2017, 2026, 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 8186046
* @summary Test bootstrap methods throwing an exception
* @library /java/lang/invoke/common
* @build test.java.lang.invoke.lib.InstructionHelper
* @run junit BootstrapMethodJumboArgsTest
* @run junit/othervm -XX:+UnlockDiagnosticVMOptions -XX:UseBootstrapCallInfo=3 BootstrapMethodJumboArgsTest
*/
import test.java.lang.invoke.lib.InstructionHelper;
import java.lang.invoke.ConstantCallSite;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.util.stream.IntStream;
import static java.lang.invoke.MethodType.methodType;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
public class BootstrapMethodJumboArgsTest {
static final MethodHandles.Lookup L = MethodHandles.lookup();
static Object bsmZero(MethodHandles.Lookup l, String name, Object type,
Object... args) {
Object[] a = args.clone();
if (type instanceof MethodType) {
return new ConstantCallSite(MethodHandles.constant(Object[].class, a));
} else {
return a;
}
}
static Object bsmOne(MethodHandles.Lookup l, String name, Object type,
Object first, Object... args) {
Object[] a = new Object[args.length + 1];
a[0] = first;
System.arraycopy(args, 0, a, 1, args.length);
if (type instanceof MethodType) {
return new ConstantCallSite(MethodHandles.constant(Object[].class, a));
} else {
return a;
}
}
static Object bsmTwo(MethodHandles.Lookup l, String name, Object type,
Object first, Object second, Object... args) {
Object[] a = new Object[args.length + 2];
a[0] = first;
a[1] = second;
System.arraycopy(args, 0, a, 2, args.length);
if (type instanceof MethodType) {
return new ConstantCallSite(MethodHandles.constant(Object[].class, a));
} else {
return a;
}
}
@Test
public void testCondyWithJumboArgs() throws Throwable {
String[] expected = IntStream.range(0, 1000).mapToObj(Integer::toString).toArray(String[]::new);
{
MethodHandle mh = InstructionHelper.ldcDynamicConstant(
L, "name", Object[].class,
"bsmZero", methodType(Object.class, MethodHandles.Lookup.class, String.class,
Object.class, Object[].class), expected);
Object[] actual = (Object[]) mh.invoke();
assertArrayEquals(expected, actual);
}
{
MethodHandle mh = InstructionHelper.ldcDynamicConstant(
L, "name", Object[].class,
"bsmOne", methodType(Object.class, MethodHandles.Lookup.class, String.class,
Object.class, Object.class, Object[].class), expected);
Object[] actual = (Object[]) mh.invoke();
assertArrayEquals(expected, actual);
}
{
MethodHandle mh = InstructionHelper.ldcDynamicConstant(
L, "name", Object[].class,
"bsmTwo", methodType(Object.class, MethodHandles.Lookup.class, String.class,
Object.class, Object.class, Object.class, Object[].class), expected);
Object[] actual = (Object[]) mh.invoke();
assertArrayEquals(expected, actual);
}
}
@Test
public void testIndyWithJumboArgs() throws Throwable {
String[] expected = IntStream.range(0, 1000).mapToObj(Integer::toString).toArray(String[]::new);
{
MethodHandle mh = InstructionHelper.invokedynamic(
L, "name", methodType(Object[].class),
"bsmZero", methodType(Object.class, MethodHandles.Lookup.class, String.class,
Object.class, Object[].class), expected);
Object[] actual = (Object[]) mh.invoke();
assertArrayEquals(expected, actual);
}
{
MethodHandle mh = InstructionHelper.invokedynamic(
L, "name", methodType(Object[].class),
"bsmOne", methodType(Object.class, MethodHandles.Lookup.class, String.class,
Object.class, Object.class, Object[].class), expected);
Object[] actual = (Object[]) mh.invoke();
assertArrayEquals(expected, actual);
}
{
MethodHandle mh = InstructionHelper.invokedynamic(
L, "name", methodType(Object[].class),
"bsmTwo", methodType(Object.class, MethodHandles.Lookup.class, String.class,
Object.class, Object.class, Object.class, Object[].class), expected);
Object[] actual = (Object[]) mh.invoke();
assertArrayEquals(expected, actual);
}
}
}