/* * Copyright (c) 2003, 2022, 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. * * 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. */ import java.io.*; /* * @test * * @summary converted from VM Testbase nsk/jvmti/ClassLoad/classload001. * VM Testbase keywords: [quick, jpda, jvmti, onload_only_logic, noras] * VM Testbase readme: * DESCRIPTION * The test exercises the JVMTI event Class Load. * It verifies that the event will be sent for the auxiliary class * 'TestedClass' and not sent for array of type 'TestedClass' and for * primitive classes and arrays of primitive types in accordance with * the ClassLoad spec: * "Array class creation does not generate a class load event. The * creation of a primitive class (for example, java.lang.Integer.TYPE) * does not generate a class load event." * COMMENTS * Fixed the 5031200 bug. * * @library /test/lib * @compile --enable-preview -source ${jdk.version} classload01.java * @run main/othervm/native --enable-preview -agentlib:classload01 classload01 */ /** * The test exercises the JVMTI event Class Load.
* It verifies that the event will be sent for the auxiliary class * TestedClass and array of type TestedClass * and vise versa for primitive classes and arrays of primitive types * in accordance with the ClassLoad spec:
* Arrays of non-primitive types have class load events. Arrays of * primitive types do not have class load events. Primitive classes (for * example, java.lang.Integer.TYPE) do not have class load events. */ public class classload01 { static { try { System.loadLibrary("classload01"); } catch (UnsatisfiedLinkError ule) { System.err.println("Could not load \"classload01\" library"); System.err.println("java.library.path:" + System.getProperty("java.library.path")); throw ule; } } native int check(); public static void main(String args[]) { Runnable virtualThreadTest = () -> { System.out.println("Loading class inside of virtual thread ..."); loadClass(); System.out.println("Loading class inside of virtual thread ..."); }; Thread thread = Thread.startVirtualThread(virtualThreadTest); try { thread.join(); } catch (InterruptedException e) { throw new RuntimeException(e); } int result = new classload01().check(); if (result != 0) { throw new RuntimeException("Check returned " + result); } } static void loadClass() { Object obj = new TestedClassVirtual(); } // classes & arrays used to verify an assertion in the agent Class boolCls = Boolean.TYPE; Class byteCls = Byte.TYPE; Class charCls = Character.TYPE; Class doubleCls = Double.TYPE; Class floatCls = Float.TYPE; Class intCls = Integer.TYPE; Class longCls = Long.TYPE; Class shortCls = Short.TYPE; Class boolClArr[] = {Boolean.TYPE, Boolean.TYPE}; Class byteClArr[] = {Byte.TYPE, Byte.TYPE}; Class charClArr[] = {Character.TYPE}; Class doubleClArr[] = {Double.TYPE}; Class floatClArr[] = {Float.TYPE, Float.TYPE}; Class intClArr[] = {Integer.TYPE}; Class longClArr[] = {Long.TYPE}; Class shortClArr[] = {Short.TYPE, Short.TYPE}; boolean boolArr[] = {false, true}; byte byteArr[] = {Byte.MAX_VALUE}; char charArr[] = {'a'}; double doubleArr[] = {Double.MIN_VALUE}; float floatArr[] = {Float.MAX_VALUE}; int intArr[] = {Integer.MIN_VALUE}; long longArr[] = {Long.MAX_VALUE}; short shortArr[] = {Short.MIN_VALUE}; TestedClass testedCls[] = {new TestedClass()}; class TestedClass {} } class TestedClassVirtual { TestedClassVirtual() { System.out.println(this.getClass().getName() + " loading in virtual thread."); } }