1 /* 2 * Copyright (c) 2015, 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.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.Experimental; 37 import jdk.jfr.MetadataDefinition; 38 import jdk.testlibrary.Asserts; 39 import jdk.testlibrary.jfr.Events; 40 41 /* 42 * @test 43 * @key jfr 44 * @library /lib/testlibrary 45 * @run main/othervm jdk.jfr.api.metadata.annotations.TestExperimental 46 */ 47 public class TestExperimental { 48 49 @MetadataDefinition 50 @Experimental 51 @Target({ ElementType.TYPE }) 52 @Retention(RetentionPolicy.RUNTIME) 53 @interface ExperimentalAnnotation { 54 } 55 56 @ExperimentalAnnotation 57 @Experimental 58 static class ExperimentalEvent extends Event { 59 @Experimental 60 boolean experimentalField; 61 } 62 63 public static void main(String[] args) throws Exception { 64 EventType t = EventType.getEventType(ExperimentalEvent.class); 65 66 // @Experimental on event 67 Experimental e = t.getAnnotation(Experimental.class); 68 Asserts.assertTrue(e != null, "Expected @Experimental annotation on event"); 69 70 // @Experimental on annotation 71 AnnotationElement a = Events.getAnnotationByName(t, ExperimentalAnnotation.class.getName()); 72 e = a.getAnnotation(Experimental.class); 73 Asserts.assertTrue(e != null, "Expected @Experimental on annotation"); 74 75 // @Experimental on field 76 a = Events.getAnnotation(t.getField("experimentalField"), Experimental.class); 77 Asserts.assertTrue(e != null, "Expected @Experimental on field"); 78 } 79 }