1 /* 2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. 3 * Copyright (c) 2018, Google and/or its affiliates. All rights reserved. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 */ 24 25 package MyPackage; 26 27 /** 28 * @test 29 * @build Frame HeapMonitor ThreadInformation 30 * @summary Ensures the JVMTI Heap Monitor is not thread enable (test to change when it becomes so) 31 * @compile HeapMonitorEventsForTwoThreadsTest.java 32 * @run main/othervm/native -agentlib:HeapMonitorTest MyPackage.HeapMonitorEventsForTwoThreadsTest 33 */ 34 35 import java.util.List; 36 37 public class HeapMonitorEventsForTwoThreadsTest { 38 public native static boolean checkSamples(); 39 40 public static void main(String[] args) { 41 final int numThreads = 24; 42 List<ThreadInformation> threadList = ThreadInformation.createThreadList(numThreads); 43 44 Thread firstThread = threadList.get(0).getThread(); 45 Thread secondThread = threadList.get(1).getThread(); 46 if (HeapMonitor.enableSamplingEventsForTwoThreads(firstThread, secondThread)) { 47 throw new RuntimeException("Sampling event is thread enabled, that is unexpected."); 48 } 49 } 50 }