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 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.test.lib.Asserts; 38 import jdk.test.lib.jfr.Events; 39 40 /** 41 * @test 42 * @summary Tests that abstract events are not part of metadata 43 * @key jfr 44 * @requires vm.hasJFR 45 * @library /test/lib 46 * @run main/othervm jdk.jfr.api.event.TestAbstractEvent 47 */ 48 public class TestAbstractEvent { 49 50 // Should not be included in metadata 51 @Experimental 52 static abstract class BaseEvent extends Event { 53 } 54 55 // Should be included 56 static class ConcreteEvent extends BaseEvent { 57 } 58 59 public static void main(String... args) throws IOException { 60 try { 61 EventType.getEventType(BaseEvent.class); 62 Asserts.fail("Should not accept abstract event classes"); 63 } catch (IllegalArgumentException iae) { 64 // OK, as expected 65 } 66 67 try { 68 FlightRecorder.register(BaseEvent.class); 69 Asserts.fail("Should not accept registering abstract event classes"); 70 } catch (IllegalArgumentException iae) { 71 // OK, as expected 72 } 73 74 try { 75 FlightRecorder.unregister(BaseEvent.class); 76 Asserts.fail("Should not accept unregistering abstract event classes"); 77 } catch (IllegalArgumentException iae) { 78 // OK, as expected 79 } 80 81 82 Recording r = new Recording(); 83 try { 84 r.enable(BaseEvent.class); 85 Asserts.fail("Should not accept abstract event classes"); 86 } catch (IllegalArgumentException iae) { 87 // OK, as expected 88 } 89 r.start(); 90 91 ConcreteEvent event = new ConcreteEvent(); 92 event.commit(); 93 r.stop(); 94 RecordingFile rf = Events.copyTo(r); 95 RecordedEvent re = rf.readEvent(); 96 if (!re.getEventType().getName().equals(ConcreteEvent.class.getName())) { 97 Asserts.fail("Expected " + ConcreteEvent.class.getName() + " event to be part of recording. Found " + re.getEventType().getName()); 98 } 99 if (rf.hasMoreEvents()) { 100 Asserts.fail("Expected only one event"); 101 } 102 rf.close(); 103 EventType concreteEventType = null; 104 for (EventType type : FlightRecorder.getFlightRecorder().getEventTypes()) { 105 if (type.getName().equals(BaseEvent.class.getName())) { 106 Asserts.fail("Abstract events should not be part of metadata"); 107 } 108 if (type.getName().equals(ConcreteEvent.class.getName())) { 109 concreteEventType = type; 110 } 111 } 112 Asserts.assertTrue(concreteEventType != null, "Could not find " + ConcreteEvent.class.getName() + " in metadata"); 113 Experimental exp = concreteEventType.getAnnotation(Experimental.class); 114 Asserts.assertTrue(exp != null, "Could not find inherited annotation" + Experimental.class.getName() + " from abstract event class"); 115 } 116 }