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.gc.collection;
  27 
  28 import static jdk.test.lib.Asserts.assertTrue;
  29 
  30 import java.time.Duration;
  31 
  32 import jdk.jfr.Recording;
  33 import jdk.jfr.consumer.RecordedEvent;
  34 import jdk.test.lib.jfr.Events;
  35 import jdk.test.lib.jfr.GCHelper;
  36 
  37 /*
  38  * @test
  39  * @key jfr

  40  * @library /test/lib
  41  * @run main/othervm -Xlog:gc*=debug -XX:+UnlockExperimentalVMOptions -XX:-UseFastUnorderedTimeStamps jdk.jfr.event.gc.collection.TestGCGarbageCollectionEvent
  42  */
  43 public class TestGCGarbageCollectionEvent {
  44 
  45     private final static String EVENT_NAME = GCHelper.event_garbage_collection;
  46 
  47     public static void main(String[] args) throws Exception {
  48         Recording recording = new Recording();
  49         recording.enable(EVENT_NAME).withThreshold(Duration.ofMillis(0));
  50         recording.start();
  51         System.gc();
  52         recording.stop();
  53 
  54         boolean isAnyFound = false;
  55         for (RecordedEvent event : Events.fromRecording(recording)) {
  56             if (!EVENT_NAME.equals(event.getEventType().getName())) {
  57                 continue;
  58             }
  59             System.out.println("Event: " + event);

  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.gc.collection;
  27 
  28 import static jdk.test.lib.Asserts.assertTrue;
  29 
  30 import java.time.Duration;
  31 
  32 import jdk.jfr.Recording;
  33 import jdk.jfr.consumer.RecordedEvent;
  34 import jdk.test.lib.jfr.Events;
  35 import jdk.test.lib.jfr.GCHelper;
  36 
  37 /**
  38  * @test
  39  * @key jfr
  40  * @requires vm.hasJFR
  41  * @library /test/lib
  42  * @run main/othervm -Xlog:gc*=debug -XX:+UnlockExperimentalVMOptions -XX:-UseFastUnorderedTimeStamps jdk.jfr.event.gc.collection.TestGCGarbageCollectionEvent
  43  */
  44 public class TestGCGarbageCollectionEvent {
  45 
  46     private final static String EVENT_NAME = GCHelper.event_garbage_collection;
  47 
  48     public static void main(String[] args) throws Exception {
  49         Recording recording = new Recording();
  50         recording.enable(EVENT_NAME).withThreshold(Duration.ofMillis(0));
  51         recording.start();
  52         System.gc();
  53         recording.stop();
  54 
  55         boolean isAnyFound = false;
  56         for (RecordedEvent event : Events.fromRecording(recording)) {
  57             if (!EVENT_NAME.equals(event.getEventType().getName())) {
  58                 continue;
  59             }
  60             System.out.println("Event: " + event);