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.util.List;
29 
30 import jdk.jfr.Event;
31 import jdk.jfr.FlightRecorder;
32 import jdk.jfr.Recording;
33 import jdk.jfr.Registered;
34 import jdk.jfr.consumer.RecordedEvent;
35 import jdk.test.lib.Asserts;
36 import jdk.test.lib.jfr.Events;
37 
38 /**
39  * @test
40  * @summary Tests that a cloned event can be successfully committed.
41  * @key jfr
42  * @requires vm.hasJFR
43  * @library /test/lib
44  * @run main/othervm jdk.jfr.api.event.TestClonedEvent
45  */
46 
47 public class TestClonedEvent  {
48 
main(String[] args)49     public static void main(String[] args) throws Throwable {
50         Recording r = new Recording();
51         r.enable(MyEvent.class);
52 
53         r.start();
54 
55         MyEvent event = new MyEvent();
56 
57         MyEvent event2 = (MyEvent)event.clone();
58 
59         FlightRecorder.register(MyEvent.class);
60         event.commit();
61         event2.commit();
62 
63         r.stop();
64 
65         List<RecordedEvent> events = Events.fromRecording(r);
66         Asserts.assertEquals(2, events.size());
67 
68         r.close();
69 
70         FlightRecorder.unregister(MyEvent.class);
71 
72         Recording r2 = new Recording();
73         r2.enable(MyEvent.class);
74 
75         r2.start();
76         event.commit();
77         event2.commit();
78 
79         r2.stop();
80 
81         events = Events.fromRecording(r2);
82         Asserts.assertEquals(0, events.size());
83 
84         r2.close();
85     }
86 
87     @Registered(false)
88     private static class MyEvent extends Event implements Cloneable {
89 
clone()90         public Object clone() throws CloneNotSupportedException {
91             return super.clone();
92         }
93 
94     }
95 
96 }
97