1 /*
2 * Copyright (c) 2020, 2023, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 package jdk.jfr.event.runtime;
25
26 import java.time.Duration;
27 import java.util.*;
28
29 import jdk.jfr.Recording;
30 import jdk.jfr.consumer.RecordedEvent;
31 import jdk.jfr.consumer.RecordedThread;
32 import jdk.test.lib.jfr.EventNames;
33 import jdk.test.lib.jfr.Events;
34
35 /**
36 * @test
37 * @bug 8242263
38 * @requires vm.hasJFR
39 * @key jfr
40 * @library /test/lib
41 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:DiagnoseSyncOnValueBasedClasses=2 jdk.jfr.event.runtime.TestSyncOnValueBasedClassEvent
42 * @run main/othervm --enable-preview -XX:+UnlockDiagnosticVMOptions -XX:DiagnoseSyncOnValueBasedClasses=2 jdk.jfr.event.runtime.TestSyncOnValueBasedClassEvent
43 */
44 public class TestSyncOnValueBasedClassEvent {
45 static final String EVENT_NAME = EventNames.SyncOnValueBasedClass;
46 static String[] classesWanted = {"java/lang/Character", "java/lang/Boolean", "java/lang/Byte", "java/lang/Short",
47 "java/lang/Integer", "java/lang/Long", "java/lang/Float", "java/lang/Double",
48 "java/lang/Runtime$Version"};
49 static List<Object> testObjects = new ArrayList<Object>();
50 static Integer counter = 0;
51
52 private static void initTestObjects() {
53 testObjects.add(Character.valueOf('H'));
54 testObjects.add(Boolean.valueOf(true));
55 testObjects.add(Byte.valueOf((byte)0x40));
56 testObjects.add(Short.valueOf((short)0x4000));
57 testObjects.add(Integer.valueOf(0x40000000));
58 testObjects.add(Long.valueOf(0x4000000000000000L));
59 testObjects.add(Float.valueOf(1.20f));
60 testObjects.add(Double.valueOf(1.2345));
61 testObjects.add(Runtime.version());
62 }
63
64 public static void main(String[] args) throws Throwable {
65 initTestObjects();
66 Recording recording = new Recording();
67 recording.enable(EVENT_NAME).withThreshold(Duration.ofMillis(0));
68 recording.start();
69 for (Object obj : testObjects) {
70 synchronized (obj) {
71 counter++;
72 }
73 }
74 recording.stop();
75
76 List<String> classesFound = new ArrayList<String>();
77 List<RecordedEvent> events = Events.fromRecording(recording);
78 Events.hasEvents(events);
79 for (RecordedEvent event : events) {
80 String className = Events.assertField(event, "valueBasedClass.name").notEmpty().getValue();
81 RecordedThread jt = event.getThread();
82 if (Thread.currentThread().getName().equals(jt.getJavaName())) {
83 classesFound.add(className);
84 }
85 }
86 for (String classWanted : classesWanted) {
87 if (!classesFound.contains(classWanted)) {
88 throw new AssertionError("No matching event SyncOnValueBasedClass with \"valueBasedClass=" + classWanted + "\" and current thread as caller");
89 }
90 }
91 if (classesFound.size() != classesWanted.length) {
92 throw new AssertionError("Invalid number of SyncOnValueBasedClass events for current thread");
93 }
94 }
95 }