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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/hotspot/jtreg/runtime/handshake/MixedHandshakeWalkStackTest.java Normal file
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/*
* Copyright (c) 2020, 2022, 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 MixedHandshakeWalkStackTest
* @library /testlibrary /test/lib
* @build MixedHandshakeWalkStackTest
* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI MixedHandshakeWalkStackTest
*/
import jdk.test.lib.Asserts;
import jdk.test.whitebox.WhiteBox;
public class MixedHandshakeWalkStackTest {
public static Thread testThreads[];
public static void main(String... args) throws Exception {
testThreads = new Thread[Runtime.getRuntime().availableProcessors()];
for (int i = 0; i < testThreads.length; i++) {
testThreads[i] = new Thread(() -> handshake());
}
for (Thread t : testThreads) {
t.start();
}
handshake();
for (Thread t : testThreads) {
t.join();
}
}
public static void handshake() {
WhiteBox wb = WhiteBox.getWhiteBox();
java.util.concurrent.ThreadLocalRandom rand = java.util.concurrent.ThreadLocalRandom.current();
long end = System.currentTimeMillis() + 20000;
while (end > System.currentTimeMillis()) {
wb.asyncHandshakeWalkStack(testThreads[rand.nextInt(testThreads.length)]);
wb.handshakeWalkStack(testThreads[rand.nextInt(testThreads.length)], false);
wb.handshakeWalkStack(testThreads[rand.nextInt(testThreads.length)], true);
}
}
}