/* * Copyright (c) 2018, 2023, 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 8153629 * @summary Need to cover JVMTI's GetOwnedMonitorStackDepthInfo function * @requires vm.jvmti * @compile GetOwnedMonitorStackDepthInfoTest.java * @run main/othervm/native -agentlib:GetOwnedMonitorStackDepthInfoTest GetOwnedMonitorStackDepthInfoTest */ public class GetOwnedMonitorStackDepthInfoTest { static { try { System.loadLibrary("GetOwnedMonitorStackDepthInfoTest"); } catch (UnsatisfiedLinkError ule) { System.err.println("Could not load GetOwnedMonitorStackDepthInfoTest library"); System.err.println("java.library.path: " + System.getProperty("java.library.path")); throw ule; } } private static native int verifyOwnedMonitors(); private static volatile int results = -1; public static void main(String[] args) throws Exception { new GetOwnedMonitorStackDepthInfoTest().runTest(true); new GetOwnedMonitorStackDepthInfoTest().runTest(false); } public void runTest(boolean isVirtual) throws Exception { var threadFactory = isVirtual ? Thread.ofVirtual().factory() : Thread.ofPlatform().factory(); final Object lock1 = new Lock1(); Thread t1 = threadFactory.newThread(() -> { synchronized (lock1) { System.out.println("Thread in sync section 1: " + Thread.currentThread().getName()); test1(); } }); t1.start(); t1.join(); if (results != 0) { throw new RuntimeException("FAILED status returned from the agent"); } } private synchronized void test1() { test2(); } private void test2() { Object lock2 = new Lock2(); synchronized (lock2) { System.out.println("Thread in sync section 2: " + Thread.currentThread().getName()); results = verifyOwnedMonitors(); } } private static class Lock1 { } private static class Lock2 { } }