1 /* 2 * Copyright (c) 2015, 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.metadata.annotations; 27 28 import java.lang.annotation.ElementType; 29 import java.lang.annotation.Retention; 30 import java.lang.annotation.RetentionPolicy; 31 import java.lang.annotation.Target; 32 33 import jdk.jfr.AnnotationElement; 34 import jdk.jfr.Event; 35 import jdk.jfr.EventType; 36 import jdk.jfr.MetadataDefinition; 37 import jdk.jfr.ValueDescriptor; 38 import jdk.test.lib.Asserts; 39 import jdk.test.lib.jfr.Events; 40 41 /** 42 * @test 43 * @key jfr 44 * @requires vm.hasJFR 45 * @library /test/lib 46 * @run main/othervm jdk.jfr.api.metadata.annotations.TestMetadata 47 */ 48 public class TestMetadata { 49 50 @Target({ ElementType.ANNOTATION_TYPE, ElementType.TYPE, ElementType.FIELD }) 51 @Retention(RetentionPolicy.RUNTIME) 52 @interface OtherAnnotation { 53 } 54 55 @MetadataDefinition 56 @SecondJFRAnnotation 57 @Target({ ElementType.ANNOTATION_TYPE, ElementType.TYPE, ElementType.FIELD }) 58 @Retention(RetentionPolicy.RUNTIME) 59 @interface FirstJFRAnnotation { 60 } 61 62 @MetadataDefinition 63 @Target({ ElementType.ANNOTATION_TYPE, ElementType.TYPE, ElementType.FIELD }) 64 @Retention(RetentionPolicy.RUNTIME) 65 @interface SecondJFRAnnotation { 66 } 67 68 @FirstJFRAnnotation 69 @OtherAnnotation 70 static class MetadataEvent extends Event { 71 @OtherAnnotation 72 @FirstJFRAnnotation 73 String field; 74 } 75 76 public static void main(String[] args) throws Exception { 77 EventType t = EventType.getEventType(MetadataEvent.class); 78 ValueDescriptor field = t.getField("field"); 79 Events.hasAnnotation(field, FirstJFRAnnotation.class); 80 Asserts.assertTrue(field.getAnnotation(OtherAnnotation.class) == null, "Only annotation annotated with @Metadata should exist"); 81 82 AnnotationElement a = Events.getAnnotationByName(t, FirstJFRAnnotation.class.getName()); 83 Asserts.assertTrue(a.getAnnotation(SecondJFRAnnotation.class) != null , "Annotations with @Metadata should be followed for indirect annotations"); 84 } 85 }