--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/api/consumer/TestRecordedClassLoader.java Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.jfr.api.consumer;
+
+import java.util.List;
+
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordedClass;
+import jdk.jfr.consumer.RecordedClassLoader;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.test.lib.Asserts;
+import jdk.test.lib.jfr.EventNames;
+import jdk.test.lib.jfr.Events;
+import jdk.test.lib.jfr.TestClassLoader;
+
+/*
+ * @test
+ * @summary Verifies the methods of the RecordedClassLoader
+ * @key jfr
+ * @library /test/lib
+ * @run main/othervm jdk.jfr.api.consumer.TestRecordedClassLoader
+ */
+public class TestRecordedClassLoader {
+ private final static String TEST_CLASS_NAME = "jdk.jfr.api.consumer.TestRecordedClassLoader$MyTestClass";
+ private final static String EVENT_NAME = EventNames.ClassDefine;
+
+ static class MyTestClass {
+ }
+
+ public static void main(String[] args) throws Exception {
+ Recording recording = new Recording();
+ recording.enable(EVENT_NAME).withoutStackTrace();
+ TestClassLoader cl = new TestClassLoader();
+ recording.start();
+ cl.loadClass(TEST_CLASS_NAME);
+ recording.stop();
+
+ List<RecordedEvent> events = Events.fromRecording(recording);
+ boolean isDefined = false;
+ for (RecordedEvent event : events) {
+ RecordedClass definedClass = event.getValue("definedClass");
+ if (TEST_CLASS_NAME.equals(definedClass.getName())) {
+ System.out.println(event);
+
+ // get the RecordedClassLoader from the RecordedClass, the "definedClass"
+ RecordedClassLoader definingClassLoader = definedClass.getClassLoader();
+ Asserts.assertNotNull(definingClassLoader, "Defining Class Loader should not be null");
+
+ // invoke RecordedClassLoader.getType() in order to validate the type of the RecordedClassLoader
+ RecordedClass definingClassLoaderType = definingClassLoader.getType();
+ Asserts.assertNotNull(definingClassLoaderType, "The defining Class Loader type should not be null");
+
+ // verify matching types
+ Asserts.assertEquals(cl.getClass().getName(), definingClassLoaderType.getName(),
+ "Expected type " + cl.getClass().getName() + ", got type " + definingClassLoaderType.getName());
+
+ // get a RecordedClassLoader directly from the "definingClassLoader" field as well
+ RecordedClassLoader definingClassLoaderFromField = event.getValue("definingClassLoader");
+ Asserts.assertNotNull(definingClassLoaderFromField,
+ "Defining Class Loader instantatiated from field should not be null");
+
+ // ensure that the class loader instance used in the test actually has a name
+ Asserts.assertNotNull(cl.getName(),
+ "Expected a valid name for the TestClassLoader");
+
+ // invoke RecordedClassLoader.getName() to get the name of the class loader instance
+ Asserts.assertEquals(cl.getName(), definingClassLoader.getName(),
+ "Defining Class Loader should have the same name as the original class loader");
+ Asserts.assertEquals(definingClassLoaderFromField.getName(), definingClassLoader.getName(),
+ "Defining Class Loader representations should have the same class loader name");
+
+ // invoke uniqueID()
+ Asserts.assertGreaterThan(definingClassLoader.getId(), 0L, "Invalid id assignment");
+
+ // second order class loader information ("check class loader of the class loader")
+ RecordedClassLoader classLoaderOfDefClassLoader = definingClassLoaderType.getClassLoader();
+ Asserts.assertNotNull(classLoaderOfDefClassLoader,
+ "The class loader for the definining class loader should not be null");
+ Asserts.assertEquals(cl.getClass().getClassLoader().getName(), classLoaderOfDefClassLoader.getName(),
+ "Expected class loader name " + cl.getClass().getClassLoader().getName() + ", got name " + classLoaderOfDefClassLoader.getName());
+
+ RecordedClass classLoaderOfDefClassLoaderType = classLoaderOfDefClassLoader.getType();
+ Asserts.assertNotNull(classLoaderOfDefClassLoaderType,
+ "The class loader type for the defining class loader should not be null");
+ Asserts.assertEquals(cl.getClass().getClassLoader().getClass().getName(), classLoaderOfDefClassLoaderType.getName(),
+ "Expected type " + cl.getClass().getClassLoader().getClass().getName() + ", got type " + classLoaderOfDefClassLoaderType.getName());
+
+ Asserts.assertGreaterThan(definingClassLoader.getId(), classLoaderOfDefClassLoader.getId(),
+ "expected id assignment invariant broken for Class Loaders");
+
+ isDefined = true;
+ }
+ }
+ Asserts.assertTrue(isDefined, "No class define event found to verify RecordedClassLoader");
+ }
+}