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.Experimental; 37 import jdk.jfr.MetadataDefinition; 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.TestExperimental 47 */ 48 public class TestExperimental { 49 50 @MetadataDefinition 51 @Experimental 52 @Target({ ElementType.TYPE }) 53 @Retention(RetentionPolicy.RUNTIME) 54 @interface ExperimentalAnnotation { 55 } 56 57 @ExperimentalAnnotation 58 @Experimental 59 static class ExperimentalEvent extends Event { 60 @Experimental 61 boolean experimentalField; 62 } 63 64 public static void main(String[] args) throws Exception { 65 EventType t = EventType.getEventType(ExperimentalEvent.class); 66 67 // @Experimental on event 68 Experimental e = t.getAnnotation(Experimental.class); 69 Asserts.assertTrue(e != null, "Expected @Experimental annotation on event"); 70 71 // @Experimental on annotation 72 AnnotationElement a = Events.getAnnotationByName(t, ExperimentalAnnotation.class.getName()); 73 e = a.getAnnotation(Experimental.class); 74 Asserts.assertTrue(e != null, "Expected @Experimental on annotation"); 75 76 // @Experimental on field 77 a = Events.getAnnotation(t.getField("experimentalField"), Experimental.class); 78 Asserts.assertTrue(e != null, "Expected @Experimental on field"); 79 } 80 }