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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/hotspot/jtreg/runtime/ErrorHandling/StackWalkNativeToJava.java Normal file
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/*
* Copyright (c) 2023, 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.
*
*/
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.Utils;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/*
* @test StackWalkNativeToJava
* @bug 8316309
* @summary Check that walking the stack works fine when going from C++ frame to Java frame.
* @requires os.arch=="amd64" | os.arch=="x86_64" | os.arch=="aarch64" | os.arch=="riscv64"
* @requires os.family != "windows"
* @requires vm.flagless
* @library /test/lib
* @run driver StackWalkNativeToJava
*/
public class StackWalkNativeToJava {
public static void main(String[] args) throws Exception {
// Check stack walking works fine when sender of C++ frame
// is a Java native method.
testStackWalkNativeToJavaNative("-Xint");
testStackWalkNativeToJavaNative("-Xcomp", "-XX:CompileCommand=dontinline,StackWalkNativeToJava$TestNativeToJavaNative::*");
// Check stack walking works fine when sender of C++ frame
// is a runtime stub or interpreted Java method (VM call from Java).
testStackWalkNativeToJava("-Xint");
testStackWalkNativeToJava("-Xcomp", "-XX:TieredStopAtLevel=3",
"-XX:CompileCommand=dontinline,StackWalkNativeToJava$TestNativeToJava::*");
}
public static void testStackWalkNativeToJavaNative(String... extraFlags) throws Exception {
List<String> commands = new ArrayList<>();
commands.add("-Xbootclasspath/a:.");
commands.add("-XX:-CreateCoredumpOnCrash");
commands.add("-XX:+UnlockDiagnosticVMOptions");
commands.add("-XX:AbortVMOnException=java.lang.IllegalMonitorStateException");
commands.add("-XX:+ErrorFileToStdout");
commands.addAll(Arrays.asList(extraFlags));
commands.add("StackWalkNativeToJava$TestNativeToJavaNative");
ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder(commands);
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldNotContain("java.lang.RuntimeException: Reached statement after obj.wait()");
output.shouldNotContain("[error occurred during error reporting (printing native stack");
String[] res = output.getOutput().split("StackWalkNativeToJava\\$TestNativeToJavaNative\\.callNativeMethod\\(\\)V");
if (res.length != 3) {
output.reportDiagnosticSummary();
}
assertTrue(res.length == 3, res.length);
output.shouldNotHaveExitValue(0);
}
public static class TestNativeToJavaNative {
public static void main(String[] args) throws Exception {
TestNativeToJavaNative test = new TestNativeToJavaNative();
test.callNativeMethod();
}
public void callNativeMethod() throws Exception {
Object obj = new Object();
// Trigger a fatal exit due to IllegalMonitorStateException during
// a call to the VM from a Java native method.
obj.wait();
throw new RuntimeException("Reached statement after obj.wait()");
}
}
public static void testStackWalkNativeToJava(String... extraFlags) throws Exception {
List<String> commands = new ArrayList<>();
commands.add("-Xbootclasspath/a:.");
commands.add("-XX:-CreateCoredumpOnCrash");
commands.add("-XX:+UnlockDiagnosticVMOptions");
commands.add("-XX:DiagnoseSyncOnValueBasedClasses=1");
commands.add("-XX:+ErrorFileToStdout");
commands.addAll(Arrays.asList(extraFlags));
commands.add("StackWalkNativeToJava$TestNativeToJava");
ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder(commands);
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldNotContain("java.lang.RuntimeException: Reached statement after synchronized");
output.shouldNotContain("[error occurred during error reporting (printing native stack");
String[] res = output.getOutput().split("StackWalkNativeToJava\\$TestNativeToJava\\.callVMMethod\\(\\)V");
if (res.length != 3) {
output.reportDiagnosticSummary();
}
assertTrue(res.length == 3, res.length);
output.shouldNotHaveExitValue(0);
}
public static class TestNativeToJava {
static Integer counter = 0;
public static void main(String[] args) throws Exception {
TestNativeToJava test = new TestNativeToJava();
test.callVMMethod();
}
public void callVMMethod() throws Exception {
// Trigger a fatal exit for trying to synchronize on a value based class
// during a call to the VM from a Java method.
synchronized (counter) {
counter++;
}
throw new RuntimeException("Reached statement after synchronized");
}
}
private static void assertTrue(boolean condition, int count) {
if (!condition) {
throw new RuntimeException("Count error: count was " + count);
}
}
}