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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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package jdk.jfr.event.gc.collection;
import static jdk.test.lib.Asserts.assertTrue;
import java.time.Duration;
import jdk.jfr.Recording;
import jdk.jfr.consumer.RecordedEvent;
import jdk.test.lib.jfr.Events;
import jdk.test.lib.jfr.GCHelper;
/**
* @test
* @key jfr
* @requires vm.hasJFR
* @library /test/lib
* @run main/othervm -Xlog:gc*=debug -XX:+UnlockExperimentalVMOptions -XX:-UseFastUnorderedTimeStamps jdk.jfr.event.gc.collection.TestGCGarbageCollectionEvent
*/
public class TestGCGarbageCollectionEvent {
private final static String EVENT_NAME = GCHelper.event_garbage_collection;
public static void main(String[] args) throws Exception {
Recording recording = new Recording();
recording.enable(EVENT_NAME).withThreshold(Duration.ofMillis(0));
recording.start();
System.gc();
recording.stop();
boolean isAnyFound = false;
for (RecordedEvent event : Events.fromRecording(recording)) {
if (!EVENT_NAME.equals(event.getEventType().getName())) {
continue;
}
System.out.println("Event: " + event);
isAnyFound = true;
long longestPause = Events.assertField(event, "longestPause").atLeast(0L).getValue();
Events.assertField(event, "sumOfPauses").atLeast(longestPause);
}
assertTrue(isAnyFound, "No matching event found");
}
}