88 lines
3.0 KiB
Java
88 lines
3.0 KiB
Java
/*
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* Copyright (c) 2022, 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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/*
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* @test id=default
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* @summary Verifies JVMTI GetStackTrace does not truncate virtual thread stack trace with agent attach
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* @requires vm.jvmti
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* @enablePreview
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* @run main/othervm/native -Djdk.attach.allowAttachSelf=true VirtualStackTraceTest
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*/
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/*
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* @test id=no-vmcontinuations
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* @requires vm.continuations
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* @requires vm.jvmti
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* @enablePreview
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* @run main/othervm/native -Djdk.attach.allowAttachSelf=true -XX:+UnlockExperimentalVMOptions -XX:-VMContinuations VirtualStackTraceTest
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*/
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import com.sun.tools.attach.VirtualMachine;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Objects;
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public class VirtualStackTraceTest {
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private static final String AGENT_LIB = "VirtualStackTraceTest";
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public static native String[] getStackTrace();
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public static void main(String[] args) throws Exception {
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VirtualMachine vm = VirtualMachine.attach(String.valueOf(ProcessHandle.current().pid()));
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vm.loadAgentLibrary(AGENT_LIB);
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VirtualStackTraceTest t = new VirtualStackTraceTest();
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t.runTest();
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}
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void runTest() throws Exception {
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Thread thr = Thread.ofVirtual().name("VT").start(VirtualStackTraceTest::test);
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thr.join();
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}
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private static void test() {
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work();
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}
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private static void work() {
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inner();
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}
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private static void inner() {
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checkCurrentThread();
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}
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private static void checkCurrentThread() {
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System.out.println("Stack trace for " + Thread.currentThread() + ": ");
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var javaStackTrace = Arrays.stream(Thread.currentThread().getStackTrace()).map(StackTraceElement::getMethodName).toList();
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var jvmtiStackTrace = List.of(getStackTrace());
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System.out.println("JVMTI: " + jvmtiStackTrace);
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System.out.println("Java : " + javaStackTrace);
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if (!Objects.equals(jvmtiStackTrace, javaStackTrace)) {
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throw new RuntimeException("VirtualStackTraceTest failed: stack traces do not match");
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}
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}
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}
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