/* * 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 Verifies the JVMTI Heap Monitor is only availabe for a single agent. * @compile HeapMonitorOnlyOneAgent.java * @run main/othervm/native -agentlib:HeapMonitorTest MyPackage.HeapMonitorOnlyOneAgent */ import java.util.List; public class HeapMonitorOnlyOneAgent { private native static boolean enablingSamplingInSecondaryAgent(); public static void main(String[] args) { HeapMonitor.enableSamplingEvents(); if (enablingSamplingInSecondaryAgent() == true) { throw new RuntimeException("Enabling sampling in second agent did not fail..."); } } }