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.metadata.eventtype;
  27 
  28 import java.util.Arrays;
  29 
  30 import jdk.jfr.Category;
  31 import jdk.jfr.Description;
  32 import jdk.jfr.Enabled;
  33 import jdk.jfr.Event;
  34 import jdk.jfr.EventType;
  35 import jdk.jfr.Label;
  36 import jdk.test.lib.Asserts;
  37 
  38 /**
  39  * @test
  40  * @summary Test getAnnotations()
  41  * @key jfr
  42  *
  43  * @library /lib /
  44  * @run main/othervm jdk.jfr.api.metadata.eventtype.TestGetAnnotation
  45  */
  46 public class TestGetAnnotation {
  47 
  48     public static void main(String[] args) throws Throwable {
  49         EventType type = EventType.getEventType(MyEvent.class);
  50 
  51         Label label = type.getAnnotation(Label.class);
  52         if (label == null) {
  53             Asserts.fail("Annotation label was null");
  54         }
  55         Asserts.assertEquals(label.value(), "myLabel", "Wrong value for annotation label");
  56 
  57         Category category = type.getAnnotation(Category.class);
  58         if (category == null) {
  59             Asserts.fail("Annotation @Description was null");
  60         }
  61 
  62         Asserts.assertTrue(Arrays.equals(category.value(), new String[] {"Stuff"}), "Wrong value for annotation enabled");
  63 
  64         Description description = type.getAnnotation(Description.class);
  65         if (description != null) {
  66             Asserts.fail("Annotation description should be null");
  67         }
  68 
  69         try {
  70             type.getAnnotation(null);
  71             Asserts.fail("No exception when getAnnotation(null)");
  72         } catch(Exception e) {
  73             // Expected exception
  74         }
  75     }
  76 
  77     @Label("myLabel")
  78     @Enabled(false)
  79     @Category("Stuff")
  80     private static class MyEvent extends Event {
  81     }
  82 }