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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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,

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package jdk.jfr.event.oldobject;

import java.time.Duration;

import java.util.ArrayList;

import java.util.List;

import jdk.jfr.Recording;

import jdk.jfr.consumer.RecordedEvent;

import jdk.jfr.internal.test.WhiteBox;

import jdk.test.lib.jfr.EventNames;

import jdk.test.lib.jfr.Events;

/**

 * @test

 * @key jfr

 * @requires vm.hasJFR

 * @requires vm.gc == "null"

 * @library /test/lib /test/jdk

 * @modules jdk.jfr/jdk.jfr.internal.test

 * @run main/othervm -XX:TLABSize=2k jdk.jfr.event.oldobject.TestObjectAge

 */

public class TestObjectAge {

    public final static List<Object[]> leak = new ArrayList<>(OldObjects.MIN_SIZE);

    public static void main(String[] args) throws Exception {

        WhiteBox.setWriteAllObjectSamples(true);

        try (Recording recording = new Recording()) {

            recording.enable(EventNames.OldObjectSample).withStackTrace().with("cutoff", "1 h");

            recording.start();

            // Allocate array to trigger sampling code path for interpreter / c1

            for (int i = 0; i < OldObjects.MIN_SIZE; i++) {

                leak.add(new Object[0]);

            }

            recording.stop();

            List<RecordedEvent> events = Events.fromRecording(recording);

            // OK if we sometimes don't get an event

            for (RecordedEvent event : events) {

                Duration objectAge = event.getDuration("objectAge");

                // Sanity check

                if (objectAge.isNegative() || objectAge.toMinutes() > 60) {

                    throw new Exception("Object age " + objectAge + " is not reasonable");

                }

            }

        }

    }

}