1 /* 2 * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.jfr.event.runtime; 27 28 import static jdk.test.lib.Asserts.assertFalse; 29 import static jdk.test.lib.Asserts.assertTrue; 30 31 import java.time.Duration; 32 import java.util.concurrent.CountDownLatch; 33 34 import jdk.jfr.Recording; 35 import jdk.jfr.consumer.RecordedEvent; 36 import jdk.test.lib.jfr.EventNames; 37 import jdk.test.lib.jfr.Events; 38 import jdk.test.lib.thread.TestThread; 39 import jdk.test.lib.thread.XRun; 40 41 /** 42 * @test 43 * @key jfr 44 * 45 * @library /lib / 46 * @run main/othervm jdk.jfr.event.runtime.TestJavaMonitorWaitEvent 47 */ 48 public class TestJavaMonitorWaitEvent { 49 50 private final static String EVENT_NAME = EventNames.JavaMonitorWait; 51 private static final long WAIT_TIME = 123456; 52 53 static class Lock { 54 } 55 56 static boolean silenceFindBugsNakedNotify; 57 58 public static void main(String[] args) throws Throwable { 59 Recording recording = new Recording(); 60 recording.enable(EVENT_NAME).withThreshold(Duration.ofMillis(0)); 61 62 final Lock lock = new Lock(); 63 final CountDownLatch latch = new CountDownLatch(1); 64 65 TestThread waitThread = new TestThread(new XRun() { 66 @Override 67 public void xrun() throws Throwable { 68 synchronized (lock) { 69 latch.countDown(); 70 lock.wait(WAIT_TIME); 71 silenceFindBugsNakedNotify = false; 72 } 73 } 74 }); 75 76 try { 77 recording.start(); 78 waitThread.start(); 79 latch.await(); 80 synchronized (lock) { 81 silenceFindBugsNakedNotify = true; 82 lock.notifyAll(); 83 } 84 } finally { 85 waitThread.join(); 86 recording.stop(); 87 } 88 89 boolean isAnyFound = false; 90 for (RecordedEvent event : Events.fromRecording(recording)) { 91 System.out.println("Event:" + event); 92 if ((long)Events.assertField(event, "timeout").getValue() != WAIT_TIME) { 93 continue; 94 } 95 96 assertFalse(isAnyFound, "Found more than 1 event"); 97 isAnyFound = true; 98 Events.assertEventThread(event, waitThread); 99 final String lockClassName = lock.getClass().getName().replace('.', '/'); 100 Events.assertField(event, "monitorClass.name").equal(lockClassName); 101 Events.assertField(event, "address").notEqual(0L); 102 Events.assertField(event, "timedOut").equal(false); 103 Events.assertEventThread(event, "notifier", Thread.currentThread()); 104 } 105 assertTrue(isAnyFound, "Correct event not found"); 106 } 107 }