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/*
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* Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package jdk.jfr.event.gc.objectcount;
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import java.util.List;
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import java.util.Optional;
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import java.util.stream.Collectors;
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import jdk.jfr.Recording;
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import jdk.jfr.consumer.RecordedEvent;
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import jdk.test.lib.Asserts;
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import jdk.test.lib.jfr.EventNames;
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import jdk.test.lib.jfr.Events;
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/*
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* @test
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* @key jfr
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* @requires vm.gc == "Serial" | vm.gc == null
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* @library /test/lib /test/jdk
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* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:-UseFastUnorderedTimeStamps -XX:+UseSerialGC -XX:-UseCompressedOops -XX:MarkSweepDeadRatio=0 -XX:+IgnoreUnrecognizedVMOptions jdk.jfr.event.gc.objectcount.TestObjectCountEvent
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*/
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public class TestObjectCountEvent {
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private static final String objectCountEventPath = EventNames.ObjectCount;
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private static final String heapSummaryEventPath = EventNames.GCHeapSummary;
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public static void main(String[] args) throws Exception {
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Recording recording = new Recording();
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recording.enable(objectCountEventPath);
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recording.enable(heapSummaryEventPath);
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ObjectCountEventVerifier.createTestData();
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System.gc();
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recording.start();
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recording.stop();
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List<RecordedEvent> events = Events.fromRecording(recording);
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for (RecordedEvent event : events) {
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System.out.println("Event: " + event);
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}
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Optional<RecordedEvent> heapSummaryEvent = events.stream()
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.filter(e -> Events.isEventType(e, heapSummaryEventPath))
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.filter(e -> "After GC".equals(Events.assertField(e, "when").getValue()))
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.findFirst();
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Asserts.assertTrue(heapSummaryEvent.isPresent(), "No heapSummary with cause='After GC'");
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System.out.println("Found heapSummaryEvent: " + heapSummaryEvent.get());
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Events.assertField(heapSummaryEvent.get(), "heapUsed").atLeast(0L).getValue();
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int gcId = Events.assertField(heapSummaryEvent.get(), "gcId").getValue();
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List<RecordedEvent> objCountEvents = events.stream()
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.filter(e -> Events.isEventType(e, objectCountEventPath))
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.filter(e -> isGcId(e, gcId))
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.collect(Collectors.toList());
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Asserts.assertFalse(objCountEvents.isEmpty(), "No objCountEvents for gcId=" + gcId);
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ObjectCountEventVerifier.verify(objCountEvents);
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}
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private static boolean isGcId(RecordedEvent event, int gcId) {
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return gcId == (int)Events.assertField(event, "gcId").getValue();
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}
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}
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