TestZRelocationSetEvent.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package jdk.jfr.event.gc.detailed;

import java.util.List;

import static gc.testlibrary.Allocation.blackHole;
import jdk.jfr.Recording;
import jdk.jfr.consumer.RecordedEvent;
import jdk.test.lib.jfr.EventNames;
import jdk.test.lib.jfr.Events;

/**
 * @test TestZRelocationSetEvent
 * @requires vm.hasJFR & vm.gc.Z
 * @key jfr
 * @library /test/lib /test/jdk /test/hotspot/jtreg
 * @run main/othervm -XX:+UseZGC -Xmx32M jdk.jfr.event.gc.detailed.TestZRelocationSetEvent
 */

public class TestZRelocationSetEvent {
    public static void main(String[] args) throws Exception {
        try (Recording recording = new Recording()) {
            // Activate the event we are interested in and start recording
            recording.enable(EventNames.ZRelocationSet);
            recording.start();

            // Collect
            System.gc();

            recording.stop();

            // Verify recording
            List<RecordedEvent> events = Events.fromRecording(recording);
            System.out.println("Events: " + events.size());
            Events.hasEvents(events);
        }
    }
}