77 lines
3.1 KiB
Java
77 lines
3.1 KiB
Java
/*
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* Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.lang.instrument.ClassFileTransformer;
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import java.lang.instrument.IllegalClassFormatException;
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import java.lang.instrument.Instrumentation;
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import java.security.ProtectionDomain;
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import jdk.test.lib.thread.VThreadPinner;
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/*
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* @test
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* @summary javaagent + tracePinnedThreads will cause jvm crash/ run into deadlock when the virtual thread is pinned
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* @library /test/lib
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* @requires vm.continuations
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* @requires vm.jvmti
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* @modules java.base/java.lang:+open
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* @compile TestPinCaseWithCFLH.java
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* @build jdk.test.lib.Utils
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* @run driver jdk.test.lib.util.JavaAgentBuilder
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* TestPinCaseWithCFLH TestPinCaseWithCFLH.jar
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* @run main/othervm/timeout=100 -Djdk.virtualThreadScheduler.maxPoolSize=1
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* -Djdk.tracePinnedThreads=full --enable-native-access=ALL-UNNAMED
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* -javaagent:TestPinCaseWithCFLH.jar TestPinCaseWithCFLH
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*/
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public class TestPinCaseWithCFLH {
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public static class TestClassFileTransformer implements ClassFileTransformer {
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public byte[] transform(ClassLoader loader, String className, Class<?> classBeingRedefined,
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ProtectionDomain protectionDomain, byte[] classfileBuffer)
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throws IllegalClassFormatException {
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return classfileBuffer;
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}
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}
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// Called when agent is loaded at startup
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public static void premain(String agentArgs, Instrumentation instrumentation) throws Exception {
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instrumentation.addTransformer(new TestClassFileTransformer());
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}
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private static int result = 0;
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public static void main(String[] args) throws Exception{
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Thread t1 = Thread.ofVirtual().name("vthread-1").start(() -> {
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VThreadPinner.runPinned(() -> {
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try {
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// try yield, will pin,
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// javaagent + tracePinnedThreads should not lead to crash
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// (because of the class `PinnedThreadPrinter`)
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Thread.sleep(500);
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} catch (Exception e) {
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e.printStackTrace();
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}
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});
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});
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t1.join();
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}
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} |