1 /*
   2  * Copyright (c) 2016, 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.event.runtime;
  27 
  28 import java.util.List;
  29 
  30 import jdk.jfr.Recording;
  31 import jdk.jfr.consumer.RecordedClass;
  32 import jdk.jfr.consumer.RecordedClassLoader;
  33 import jdk.jfr.consumer.RecordedEvent;
  34 import jdk.test.lib.Asserts;
  35 import jdk.test.lib.jfr.EventNames;
  36 import jdk.test.lib.jfr.Events;
  37 import jdk.test.lib.jfr.TestClassLoader;
  38 
  39 /*
  40  * @test
  41  * @key jfr
  42  * @library /test/lib /test/jdk
  43  * @build jdk.jfr.event.runtime.TestClasses
  44  * @run main/othervm jdk.jfr.event.runtime.TestClassDefineEvent
  45  */
  46 public final class TestClassDefineEvent {
  47 
  48     private final static String TEST_CLASS_NAME = "jdk.jfr.event.runtime.TestClasses";
  49     private final static String EVENT_NAME = EventNames.ClassDefine;
  50 
  51     public static void main(String[] args) throws Throwable {
  52         Recording recording = new Recording();
  53         recording.enable(EVENT_NAME);
  54         TestClassLoader cl = new TestClassLoader();
  55         recording.start();
  56         cl.loadClass(TEST_CLASS_NAME);
  57         recording.stop();
  58 
  59         List<RecordedEvent> events = Events.fromRecording(recording);
  60         boolean foundTestClasses = false;
  61         for (RecordedEvent event : events) {
  62             System.out.println(event);
  63             RecordedClass definedClass = event.getValue("definedClass");
  64             if (TEST_CLASS_NAME.equals(definedClass.getName())) {
  65                 RecordedClassLoader definingClassLoader = definedClass.getClassLoader();
  66                 Asserts.assertNotNull(definingClassLoader, "Defining Class Loader should not be null");
  67                 RecordedClass definingClassLoaderType = definingClassLoader.getType();
  68                 Asserts.assertNotNull(definingClassLoaderType, "The defining Class Loader type should not be null");
  69                 Asserts.assertEquals(cl.getClass().getName(), definingClassLoaderType.getName(),
  70                     "Expected type " + cl.getClass().getName() + ", got type " + definingClassLoaderType.getName());
  71                 Asserts.assertEquals(cl.getName(), definingClassLoader.getName(),
  72                     "Defining Class Loader should have the same name as the original class loader");
  73                 foundTestClasses = true;
  74             }
  75         }
  76         Asserts.assertTrue(foundTestClasses, "No class define event found for " + TEST_CLASS_NAME);
  77     }
  78 }