1 /*
2 * Copyright (c) 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.api.event;
27
28 import java.io.IOException;
29 import java.util.List;
30
31 import jdk.jfr.Event;
32 import jdk.jfr.EventType;
33 import jdk.jfr.FlightRecorder;
34 import jdk.jfr.Recording;
35 import jdk.jfr.Registered;
36 import jdk.jfr.consumer.RecordedEvent;
37 import jdk.test.lib.Asserts;
38 import jdk.test.lib.jfr.Events;
39
40 /**
41 * @test
42 * @summary Test enable/disable event and verify recording has expected events.
43 * @key jfr
44 *
45 * @library /lib /
46 * @run main/othervm jdk.jfr.api.event.TestClinitRegistration
47 */
48
49 public class TestClinitRegistration {
50
51 public static void main(String[] args) throws Exception {
52 // Test basic registration with or without auto registration
53 assertClinitRegister(AutoRegisteredEvent.class, true, false);
54 assertClinitRegister(NotAutoRegisterededEvent.class, false, false);
55 assertClinitRegister(AutoRegisteredUserClinit.class, true, true);
56 assertClinitRegister(NotAutoRegisteredUserClinit.class, false, true);
57
58 // Test complex <clinit>
59 assertClinitRegister(ComplexClInit.class, true, true);
60
61 // Test hierarchy
62 assertClinitRegister(DerivedClinit.class, true, true);
63 if (!isClinitExecuted(Base.class)) {
64 Asserts.fail("Expected <clinit> of base class to be executed");
65 }
66
67 // Test committed event in <clinit>
68 Recording r = new Recording();
69 r.start();
70 r.enable(EventInClinit.class);
71 triggerClinit(EventInClinit.class);
72 r.stop();
73 hasEvent(r, EventInClinit.class.getName());
74 }
75
76 private static void assertClinitRegister(Class<? extends Event> eventClass, boolean shouldExist, boolean setsProperty) throws ClassNotFoundException {
77 String className = eventClass.getName();
78 triggerClinit(eventClass);
79 boolean hasEventType = hasEventType(className);
80 boolean hasProperty = Boolean.getBoolean(className);
81 if (hasEventType && !shouldExist) {
82 Asserts.fail("Event class " + className + " should not be registered");
83 }
84 if (!hasEventType && shouldExist) {
85 Asserts.fail("Event class " + className + " is not registered");
86 }
87 if (setsProperty && !hasProperty) {
88 Asserts.fail("Expected clinit to be executed");
89 }
90 if (!setsProperty && hasProperty) {
91 Asserts.fail("Property in clinit should not been set. Test bug?");
92 }
93 }
94
95 private static boolean hasEventType(String name) {
96 for (EventType type : FlightRecorder.getFlightRecorder().getEventTypes()) {
97 if (type.getName().equals(name)) {
98 return true;
99 }
100 }
101 return false;
102 }
103
104 private static void triggerClinit(Class<?> clazz) throws ClassNotFoundException {
105 Class.forName(clazz.getName(), true, clazz.getClassLoader());
106 }
107
108 private static void setClinitExecuted(Class<? extends Event> eventClass) {
109 System.setProperty(eventClass.getName(), "true");
110 }
111
112 private static boolean isClinitExecuted(Class<? extends Event> eventClass) {
113 return "true".equals(System.getProperty(eventClass.getName(), "true"));
114 }
115
116 static class AutoRegisteredEvent extends Event {
117 }
118
119 @Registered(false)
120 static class NotAutoRegisterededEvent extends Event {
121 }
122
123 static class AutoRegisteredUserClinit extends Event {
124 static {
125 setClinitExecuted(AutoRegisteredUserClinit.class);
126 }
127 }
128
129 @Registered(false)
130 static class NotAutoRegisteredUserClinit extends Event {
131 static {
132 setClinitExecuted(NotAutoRegisteredUserClinit.class);
133 }
134 }
135
136 static class Base extends Event {
137 static {
138 setClinitExecuted(Base.class);
139 }
140 }
141
142 static class DerivedClinit extends Base {
143 static {
144 setClinitExecuted(DerivedClinit.class);
145 }
146
147 @Deprecated
148 void myVoidMethod() {
149 }
150 }
151
152 static class ComplexClInit extends Event {
153 static {
154 setClinitExecuted(ComplexClInit.class);
155 }
156 public static final long l = Long.parseLong("7");
157 public static final int i = Integer.parseInt("7");
158 public static final short s = Short.parseShort("7");
159 public static final double d = Double.parseDouble("7");
160 public static final float f = Float.parseFloat("7");
161 public static final boolean b = Boolean.parseBoolean("true");
162 public static final char c = (char) Integer.parseInt("48");
163 public static final String text = "ioio".substring(2);
164 public static final int[] primitivArray = new int[] { 7, 4 };
165 public static final Class<?> Object = ComplexClInit.class;
166
167 static {
168 String text = "";
169 long l = 56;
170 long i = 56;
171 if (i != l) {
172 throw new RuntimeException("unexpected result from comparison");
173 }
174 if (!isClinitExecuted(ComplexClInit.class)) {
175 throw new RuntimeException("Expected clinit flag to be set" + text);
176 }
177 }
178
179 static {
180 try {
181 throw new IllegalStateException("Exception");
182 } catch (IllegalStateException ise) {
183 // as expected
184 }
185 }
186 }
187
188 static class EventInClinit extends Event {
189 static {
190 EventInClinit eventInClinit = new EventInClinit();
191 eventInClinit.commit();
192 }
193 }
194
195 public static void hasEvent(Recording r, String name) throws IOException {
196 List<RecordedEvent> events = Events.fromRecording(r);
197 Events.hasEvents(events);
198
199 for (RecordedEvent event : events) {
200 if (event.getEventType().getName().equals(name)) {
201 return;
202 }
203 }
204 Asserts.fail("Missing event " + name + " in recording " + events.toString());
205 }
206 }