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 jdk.jfr.AnnotationElement;
  29 import jdk.jfr.Label;
  30 import jdk.jfr.MetadataDefinition;
  31 import jdk.jfr.Timestamp;
  32 import jdk.test.lib.Asserts;
  33 
  34 /**
  35  * @test
  36  * @key jfr
  37  *
  38  * @library /lib /
  39  * @run main/othervm jdk.jfr.api.metadata.annotations.TestHasValue
  40  */
  41 
  42 @MetadataDefinition
  43 @interface CustomAnnotation {
  44     String value();
  45 }
  46 
  47 public class TestHasValue {
  48 
  49     public static void main(String[] args) throws Exception {
  50 
  51         testHasValue(Label.class);
  52         testHasValue(Timestamp.class);
  53         testHasValue(CustomAnnotation.class);
  54     }
  55 
  56     private static void testHasValue(Class<? extends java.lang.annotation.Annotation> clz) {
  57 
  58         System.out.println("class=" + clz);
  59 
  60         AnnotationElement a = new AnnotationElement(clz, "value");
  61         Asserts.assertTrue(a.hasValue("value"));
  62         Asserts.assertFalse(a.hasValue("nosuchvalue"));
  63 
  64     }
  65 }