/* * Copyright (c) 2018, Google 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. */ package MyPackage; /** * @test * @build Frame HeapMonitor ThreadInformation * @summary Ensures the JVMTI Heap Monitor is not thread enable (test to change when it becomes so) * @compile HeapMonitorEventsForTwoThreadsTest.java * @run main/othervm/native -agentlib:HeapMonitorTest MyPackage.HeapMonitorEventsForTwoThreadsTest */ import java.util.List; public class HeapMonitorEventsForTwoThreadsTest { public native static boolean checkSamples(); public static void main(String[] args) { final int numThreads = 24; List threadList = ThreadInformation.createThreadList(numThreads); Thread firstThread = threadList.get(0).getThread(); Thread secondThread = threadList.get(1).getThread(); if (HeapMonitor.enableSamplingEventsForTwoThreads(firstThread, secondThread)) { throw new RuntimeException("Sampling event is thread enabled, that is unexpected."); } } }