1 /* 2 * Copyright (c) 2016, 2020, 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 * @requires vm.hasJFR 43 * @library /test/lib /test/jdk 44 * @modules java.base/jdk.internal.misc 45 * @build jdk.jfr.event.runtime.TestClasses 46 * @run main/othervm jdk.jfr.event.runtime.TestClassDefineEvent 47 */ 48 public final class TestClassDefineEvent { 49 50 private final static String TEST_CLASS_NAME = "jdk.jfr.event.runtime.TestClasses"; 51 private final static String EVENT_NAME = EventNames.ClassDefine; 52 53 public static void main(String[] args) throws Throwable { 54 Recording recording = new Recording(); 55 recording.enable(EVENT_NAME); 56 TestClassLoader cl = new TestClassLoader(); 57 recording.start(); 58 cl.loadClass(TEST_CLASS_NAME); 59 recording.stop(); 60 61 List<RecordedEvent> events = Events.fromRecording(recording); 62 boolean foundTestClasses = false; 63 for (RecordedEvent event : events) { 64 System.out.println(event); 65 RecordedClass definedClass = event.getValue("definedClass"); 66 if (TEST_CLASS_NAME.equals(definedClass.getName())) { 67 RecordedClassLoader definingClassLoader = definedClass.getClassLoader(); 68 Asserts.assertNotNull(definingClassLoader, "Defining Class Loader should not be null"); 69 RecordedClass definingClassLoaderType = definingClassLoader.getType(); 70 Asserts.assertNotNull(definingClassLoaderType, "The defining Class Loader type should not be null"); 71 Asserts.assertEquals(cl.getClass().getName(), definingClassLoaderType.getName(), 72 "Expected type " + cl.getClass().getName() + ", got type " + definingClassLoaderType.getName()); 73 Asserts.assertEquals(cl.getName(), definingClassLoader.getName(), 74 "Defining Class Loader should have the same name as the original class loader"); 75 foundTestClasses = true; 76 } 77 } 78 Asserts.assertTrue(foundTestClasses, "No class define event found for " + TEST_CLASS_NAME); 79 } 80 }