/* * Copyright (c) 2013, 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.util.ArrayList; import java.util.List; import jdk.test.lib.process.ProcessTools; import sun.management.VMManagement; public class JMapHProfLargeHeapProc { private static final List heapGarbage = new ArrayList<>(); public static void main(String[] args) throws Exception { buildLargeHeap(args); // Print our pid on stdout System.out.println("PID[" + ProcessTools.getProcessId() + "]"); // Wait for input before termination System.in.read(); } private static void buildLargeHeap(String[] args) { for (long i = 0; i < Integer.parseInt(args[0]); i++) { heapGarbage.add(new byte[1024]); } } }