1 /* 2 * Copyright (c) 2018, 2019, 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 30 import jdk.jfr.Event; 31 import jdk.jfr.EventType; 32 import jdk.jfr.Experimental; 33 import jdk.jfr.FlightRecorder; 34 import jdk.jfr.Recording; 35 import jdk.jfr.consumer.RecordedEvent; 36 import jdk.jfr.consumer.RecordingFile; 37 import jdk.testlibrary.Asserts; 38 import jdk.testlibrary.jfr.Events; 39 40 /* 41 * @test 42 * @summary Tests that abstract events are not part of metadata 43 * @key jfr 44 * @library /lib/testlibrary 45 * @run main/othervm jdk.jfr.api.event.TestAbstractEvent 46 */ 47 public class TestAbstractEvent { 48 49 // Should not be included in metadata 50 @Experimental 51 static abstract class BaseEvent extends Event { 52 } 53 54 // Should be included 55 static class ConcreteEvent extends BaseEvent { 56 } 57 58 public static void main(String... args) throws IOException { 59 try { 60 EventType.getEventType(BaseEvent.class); 61 Asserts.fail("Should not accept abstract event classes"); 62 } catch (IllegalArgumentException iae) { 63 // OK, as expected 64 } 65 66 try { 67 FlightRecorder.register(BaseEvent.class); 68 Asserts.fail("Should not accept registering abstract event classes"); 69 } catch (IllegalArgumentException iae) { 70 // OK, as expected 71 } 72 73 try { 74 FlightRecorder.unregister(BaseEvent.class); 75 Asserts.fail("Should not accept unregistering abstract event classes"); 76 } catch (IllegalArgumentException iae) { 77 // OK, as expected 78 } 79 80 81 Recording r = new Recording(); 82 try { 83 r.enable(BaseEvent.class); 84 Asserts.fail("Should not accept abstract event classes"); 85 } catch (IllegalArgumentException iae) { 86 // OK, as expected 87 } 88 r.start(); 89 90 ConcreteEvent event = new ConcreteEvent(); 91 event.commit(); 92 r.stop(); 93 RecordingFile rf = Events.copyTo(r); 94 RecordedEvent re = rf.readEvent(); 95 if (!re.getEventType().getName().equals(ConcreteEvent.class.getName())) { 96 Asserts.fail("Expected " + ConcreteEvent.class.getName() + " event to be part of recording. Found " + re.getEventType().getName()); 97 } 98 if (rf.hasMoreEvents()) { 99 Asserts.fail("Expected only one event"); 100 } 101 rf.close(); 102 EventType concreteEventType = null; 103 for (EventType type : FlightRecorder.getFlightRecorder().getEventTypes()) { 104 if (type.getName().equals(BaseEvent.class.getName())) { 105 Asserts.fail("Abstract events should not be part of metadata"); 106 } 107 if (type.getName().equals(ConcreteEvent.class.getName())) { 108 concreteEventType = type; 109 } 110 } 111 Asserts.assertTrue(concreteEventType != null, "Could not find " + ConcreteEvent.class.getName() + " in metadata"); 112 Experimental exp = concreteEventType.getAnnotation(Experimental.class); 113 Asserts.assertTrue(exp != null, "Could not find inherited annotation" + Experimental.class.getName() + " from abstract event class"); 114 } 115 }