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1. Re: Thread pools...
clebert.suconic Apr 14, 2009 2:38 PM (in response to clebert.suconic)Please, ignore this...
I was seeing these references, when I was navigating through the memory using JVMTI. Those runnables were being executed at the same time the printReferences was called. If I waited 5 seconds to print the references, all of this went away.<br>!--!-- FieldReference final java.lang.Runnable java.util.concurrent.Executors$RunnableAdapter.task=OBJ(java.util.concurrent.Executors$RunnableAdapter@884010469) <br>!--!--!-- FieldReference private final java.util.concurrent.Callable java.util.concurrent.FutureTask$Sync.callable=OBJ(java.util.concurrent.FutureTask$Sync@1691493474) <br>!--!--!--!-- FieldReference private final java.util.concurrent.FutureTask$Sync java.util.concurrent.FutureTask.sync=OBJ(java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@490829456) <br>!--!--!--!--!-- arrayRef [Ljava.lang.Object;[6] id=@885978865 <br>!--!--!--!--!--!-- FieldReference private transient java.lang.Object[] java.util.PriorityQueue.queue=OBJ(java.util.PriorityQueue@1602698930) <br>!--!--!--!--!--!--!-- FieldReference private final java.util.PriorityQueue java.util.concurrent.DelayQueue.q=OBJ(java.util.concurrent.DelayQueue@673532189) <br>!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.DelayQueue::take <br>!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.DelayQueue::take <br>!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.DelayQueue::take <br>!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.DelayQueue::take <br>!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.DelayQueue::take <br>!--!--!--!--!--!--!--!-- FieldReference private final java.util.concurrent.DelayQueue java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.dq=OBJ(java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue@669197186) <br>!--!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue::take <br>!--!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue::take <br>!--!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue::take <br>!--!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue::take <br>!--!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue::take <br>!--!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue::take <br>!--!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue::take <br>!--!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue::take <br>!--!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue::take <br>!--!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue::take <br>!--!--!--!--!--!--!--!--!-- FieldReference private final java.util.concurrent.BlockingQueue java.util.concurrent.ThreadPoolExecutor.workQueue=OBJ(java.util.concurrent.ScheduledThreadPoolExecutor@1456146415) <br>!--!--!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.ThreadPoolExecutor::getTask <br>!--!--!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.ThreadPoolExecutor::getTask <br>!--!--!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.ThreadPoolExecutor::getTask <br>!--!--!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.ThreadPoolExecutor::getTask <br>!--!--!--!--!--!--!--!--!--!-- Reference inside a method - java.util.concurrent.ThreadPoolExecutor::getTask <br>!--!--!--!--!--!--!--!--!--!-- StaticFieldReference private static java.util.concurrent.ScheduledThreadPoolExecutor org.jboss.messaging.core.client.impl.ConnectionManagerImpl.pingExecutor <br>!--!--!--!--!--!--!--!--!--!-- FieldReference final java.util.concurrent.ThreadPoolExecutor java.util.concurrent.ThreadPoolExecutor$Worker.this$0=OBJ(java.util.concurrent.ThreadPoolExecutor$Worker@431709193) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference final java.util.concurrent.ThreadPoolExecutor java.util.concurrent.ThreadPoolExecutor$Worker.this$0=OBJ(java.util.concurrent.ThreadPoolExecutor$Worker@1871151428) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference final java.util.concurrent.ThreadPoolExecutor java.util.concurrent.ThreadPoolExecutor$Worker.this$0=OBJ(java.util.concurrent.ThreadPoolExecutor$Worker@1155557696) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference final java.util.concurrent.ThreadPoolExecutor java.util.concurrent.ThreadPoolExecutor$Worker.this$0=OBJ(java.util.concurrent.ThreadPoolExecutor$Worker@1608577782) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference final java.util.concurrent.ThreadPoolExecutor java.util.concurrent.ThreadPoolExecutor$Worker.this$0=OBJ(java.util.concurrent.ThreadPoolExecutor$Worker@1567434291) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference final java.util.concurrent.ScheduledThreadPoolExecutor java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.this$0=OBJ(java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@729155693) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference private final java.util.concurrent.ScheduledExecutorService org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl.pingExecutor=OBJ(org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl@148643588) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference final java.util.concurrent.ScheduledThreadPoolExecutor java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.this$0=OBJ(java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@490829456) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference private final java.util.concurrent.ScheduledExecutorService org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl.pingExecutor=OBJ(org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl@1278255007) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference final java.util.concurrent.ScheduledThreadPoolExecutor java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.this$0=OBJ(java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@729302055) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference private final java.util.concurrent.ScheduledExecutorService org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl.pingExecutor=OBJ(org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl@1690464956) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference final java.util.concurrent.ScheduledThreadPoolExecutor java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.this$0=OBJ(java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@435865682) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference private final java.util.concurrent.ScheduledExecutorService org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl.pingExecutor=OBJ(org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl@527797457) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference final java.util.concurrent.ScheduledThreadPoolExecutor java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.this$0=OBJ(java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@1584397689) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference private final java.util.concurrent.ScheduledExecutorService org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl.pingExecutor=OBJ(org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl@174736223) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference final java.util.concurrent.ScheduledThreadPoolExecutor java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.this$0=OBJ(java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@1181554512) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference private final java.util.concurrent.ScheduledExecutorService org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl.pingExecutor=OBJ(org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl@605399375) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference final java.util.concurrent.ScheduledThreadPoolExecutor java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.this$0=OBJ(java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@169776139) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference private final java.util.concurrent.ScheduledExecutorService org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl.pingExecutor=OBJ(org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl@1569284957) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference final java.util.concurrent.ScheduledThreadPoolExecutor java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.this$0=OBJ(java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@1725603492) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference private final java.util.concurrent.ScheduledExecutorService org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl.pingExecutor=OBJ(org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl@451237309) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!--!--!--!--!--!-- FieldReference private java.lang.Object java.lang.ref.Reference.referent=OBJ(java.lang.ref.Finalizer@1188706162) <br>!--!--!--!--!--!--!--!--!--!--!--<b>MaxLevel</b> <br>!--!--!--!--!-- FieldReference final java.util.concurrent.FutureTask java.util.concurrent.FutureTask$Sync.this$0=OBJ(java.util.concurrent.FutureTask$Sync@1691493474) <br>!--!--!--!--!--!-- object instanceOf class java.util.concurrent.FutureTask$Sync@1691493474 was already described before on this report <br>!--!--!--!--!-- FieldReference private java.util.concurrent.ScheduledFuture org.jboss.messaging.core.remoting.impl.RemotingConnectionImpl.future=OB ...