16  *
  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 package jdk.jfr.event.oldobject;
  26 
  27 import java.util.ArrayList;
  28 import java.util.List;
  29 
  30 import jdk.jfr.Recording;
  31 import jdk.jfr.consumer.RecordedEvent;
  32 import jdk.jfr.internal.test.WhiteBox;
  33 import jdk.test.lib.jfr.EventNames;
  34 import jdk.test.lib.jfr.Events;
  35 
  36 /*
  37  * @test
  38  * @key jfr

  39  * @requires vm.gc == "null"
  40  * @library /test/lib /test/jdk
  41  * @modules jdk.jfr/jdk.jfr.internal.test
  42  * @run main/othervm -XX:TLABSize=2k jdk.jfr.event.oldobject.TestCircularReference
  43  */
  44 public class TestCircularReference {
  45 
  46     static class TestCircularReferrer {
  47         // Allocate array to trigger sampling code path for interpreter / c1
  48         final byte[] leak = new byte[1_0000_000];
  49         TestCircularReferrer reference;
  50 
  51         public void setReference(TestCircularReferrer reference) {
  52             this.reference = reference;
  53         }
  54     }
  55 
  56     public final static List<Object> referenceHolder = new ArrayList<>(OldObjects.MIN_SIZE);
  57 
  58     public static void main(String[] args) throws Exception {

  16  *
  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 package jdk.jfr.event.oldobject;
  26 
  27 import java.util.ArrayList;
  28 import java.util.List;
  29 
  30 import jdk.jfr.Recording;
  31 import jdk.jfr.consumer.RecordedEvent;
  32 import jdk.jfr.internal.test.WhiteBox;
  33 import jdk.test.lib.jfr.EventNames;
  34 import jdk.test.lib.jfr.Events;
  35 
  36 /**
  37  * @test
  38  * @key jfr
  39  * @requires vm.hasJFR
  40  * @requires vm.gc == "null"
  41  * @library /test/lib /test/jdk
  42  * @modules jdk.jfr/jdk.jfr.internal.test
  43  * @run main/othervm -XX:TLABSize=2k jdk.jfr.event.oldobject.TestCircularReference
  44  */
  45 public class TestCircularReference {
  46 
  47     static class TestCircularReferrer {
  48         // Allocate array to trigger sampling code path for interpreter / c1
  49         final byte[] leak = new byte[1_0000_000];
  50         TestCircularReferrer reference;
  51 
  52         public void setReference(TestCircularReferrer reference) {
  53             this.reference = reference;
  54         }
  55     }
  56 
  57     public final static List<Object> referenceHolder = new ArrayList<>(OldObjects.MIN_SIZE);
  58 
  59     public static void main(String[] args) throws Exception {