15  * accompanied this code).
  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.List;
  28 
  29 import jdk.jfr.Recording;
  30 import jdk.jfr.consumer.RecordedEvent;
  31 import jdk.jfr.internal.test.WhiteBox;
  32 import jdk.test.lib.jfr.EventNames;
  33 import jdk.test.lib.jfr.Events;
  34 
  35 /*
  36  * @test
  37  * @key jfr

  38  * @requires vm.gc == "null"
  39  * @library /test/lib /test/jdk
  40  * @modules jdk.jfr/jdk.jfr.internal.test
  41  * @run main/othervm -XX:TLABSize=2k jdk.jfr.event.oldobject.TestReferenceChainLimit
  42  */
  43 public class TestReferenceChainLimit {
  44     private final static int TEST_CHAIN_LENGTH_FACTOR = 10; // scaling factor for the how long chain to be used in the test
  45 
  46     final static class ChainNode {
  47         final ChainNode next;
  48         byte[] leak;
  49 
  50         public ChainNode(ChainNode node) {
  51             next = node;
  52             leak = new byte[10_000];
  53         }
  54     }
  55 
  56     private static ChainNode createChain() {
  57         ChainNode node = null;

  15  * accompanied this code).
  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.List;
  28 
  29 import jdk.jfr.Recording;
  30 import jdk.jfr.consumer.RecordedEvent;
  31 import jdk.jfr.internal.test.WhiteBox;
  32 import jdk.test.lib.jfr.EventNames;
  33 import jdk.test.lib.jfr.Events;
  34 
  35 /**
  36  * @test
  37  * @key jfr
  38  * @requires vm.hasJFR
  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.TestReferenceChainLimit
  43  */
  44 public class TestReferenceChainLimit {
  45     private final static int TEST_CHAIN_LENGTH_FACTOR = 10; // scaling factor for the how long chain to be used in the test
  46 
  47     final static class ChainNode {
  48         final ChainNode next;
  49         byte[] leak;
  50 
  51         public ChainNode(ChainNode node) {
  52             next = node;
  53             leak = new byte[10_000];
  54         }
  55     }
  56 
  57     private static ChainNode createChain() {
  58         ChainNode node = null;