1 /* 2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.jfr.event.oldobject; 27 28 import java.util.ArrayList; 29 import java.util.List; 30 31 import jdk.jfr.Recording; 32 import jdk.jfr.consumer.RecordedEvent; 33 import jdk.jfr.internal.test.WhiteBox; 34 import jdk.test.lib.jfr.EventNames; 35 import jdk.test.lib.jfr.Events; 36 37 /* 38 * @test 39 * @key jfr 40 * @requires vm.gc == "null" 41 * @summary Test leak profiler with Parallel GC 42 * @library /test/lib /test/jdk 43 * @modules jdk.jfr/jdk.jfr.internal.test 44 * @run main/othervm -XX:TLABSize=2k -XX:+UseParallelGC jdk.jfr.event.oldobject.TestParallel 45 */ 46 public class TestParallel { 47 48 static private class FindMe { 49 } 50 51 public static List<FindMe[]> list = new ArrayList<>(OldObjects.MIN_SIZE); 52 53 public static void main(String[] args) throws Exception { 54 WhiteBox.setWriteAllObjectSamples(true); 55 56 try (Recording r = new Recording()) { 57 r.enable(EventNames.OldObjectSample).withStackTrace().with("cutoff", "infinity"); 58 r.start(); 59 allocateFindMe(); 60 System.gc(); 61 r.stop(); 62 List<RecordedEvent> events = Events.fromRecording(r); 63 System.out.println(events); 64 if (OldObjects.countMatchingEvents(events, FindMe[].class, null, null, -1, "allocateFindMe") == 0) { 65 throw new Exception("Could not find leak with " + FindMe[].class); 66 } 67 } 68 } 69 70 public static void allocateFindMe() { 71 for (int i = 0; i < OldObjects.MIN_SIZE; i++) { 72 // Allocate array to trigger sampling code path for interpreter / c1 73 list.add(new FindMe[0]); 74 } 75 } 76 77 }