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From Gordon Sim <g...@redhat.com>
Subject [java]: hang during AcknowledgeOnMessageTest.testAcking()?
Date Tue, 06 Oct 2009 10:06:45 GMT
I noticed the following hang in an automated build&test run. I believe 
it is using the java broker(?). Almost everything appears to be idle, 
but the test is blocked waiting for a latch.

Anyone else seeing this? Could this be a result of recent changes?

> --- 11576, /usr/lib/jvm/java/bin/java -Xmx1024M -classpath /usr/share/java/ant.jar:/usr/share/java/ant-launcher.jar:/usr/share/java/jaxp_parser_impl.jar:/usr/share/java/xml-commons-apis.jar:/usr/share/java/checkstyle.jar:/usr/share/java/antlr.jar:/usr/share/java/regexp.jar:/usr/share/java/jakarta-commons-beanutils.jar:/usr/share/java/jakarta-commons-cli.jar:/usr/share/java/jakarta-commons-logging.jar:/usr/share/java/jakarta-commons-collections.jar:/usr/share/java/jaxp_parser_impl.jar:/usr/share/java/jtidy.jar:/usr/share/java/xml-commons-apis.jar:/usr/share/java/junit.jar:/usr/share/java/ant/ant-junit.jar:/usr/share/java/ant/ant-nodeps.jar:/usr/lib/jvm/java/lib/tools.jar
-Dant.home=/usr/share/ant -Dant.library.dir=/usr/share/ant/lib org.apache.tools.ant.launch.Launcher
-cp  test -Dbuild.data=/tmp/tmp.KqrMk11573/data ---
> 2009-10-06 01:11:26
> Full thread dump Java HotSpot(TM) 64-Bit Server VM (11.3-b02 mixed mode):
>
> "Attach Listener" daemon prio=10 tid=0x00000000608d2c00 nid=0x37a0 runnable [0x0000000000000000..0x0000000000000000]
>    java.lang.Thread.State: RUNNABLE
>
> "Queue-housekeeping-localhost" daemon prio=10 tid=0x000000006060b400 nid=0x36df in Object.wait()
[0x00000000420c4000..0x00000000420c4c10]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaaeb629798> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x0000000060bb0800 nid=0x36de in Object.wait()
[0x0000000042ed2000..0x0000000042ed2c90]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaaeb28d330> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-development" daemon prio=10 tid=0x000000005fda1c00 nid=0x36dd in
Object.wait() [0x00000000447eb000..0x00000000447ebd10]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaaeaed9660> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x000000006009ac00 nid=0x36da in Object.wait()
[0x00000000455f9000..0x00000000455f9a90]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaaea684e30> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x0000000060bb1c00 nid=0x36d0 in Object.wait()
[0x00000000450f4000..0x00000000450f4b90]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaae7bf0030> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x0000000060606000 nid=0x36c5 in Object.wait()
[0x00000000431d5000..0x00000000431d5d10]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaae3ec8fe8> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "pool-516-thread-4" prio=10 tid=0x000000006079c400 nid=0x36bd waiting on condition [0x0000000042cd0000..0x0000000042cd0d10]
>    java.lang.Thread.State: WAITING (parking)
> 	at sun.misc.Unsafe.park(Native Method)
> 	- parking to wait for  <0x00002aaae19feea0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> 	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1925)
> 	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:358)
> 	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "pool-516-thread-3" prio=10 tid=0x0000000060236000 nid=0x36bc waiting on condition [0x0000000044bef000..0x0000000044befd90]
>    java.lang.Thread.State: WAITING (parking)
> 	at sun.misc.Unsafe.park(Native Method)
> 	- parking to wait for  <0x00002aaae19feea0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> 	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1925)
> 	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:358)
> 	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "pool-516-thread-2" prio=10 tid=0x0000000060773c00 nid=0x36bb waiting on condition [0x0000000040e0d000..0x0000000040e0da10]
>    java.lang.Thread.State: WAITING (parking)
> 	at sun.misc.Unsafe.park(Native Method)
> 	- parking to wait for  <0x00002aaae19feea0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> 	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1925)
> 	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:358)
> 	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "pool-516-thread-1" prio=10 tid=0x0000000060602c00 nid=0x36ba waiting on condition [0x00000000453f7000..0x00000000453f7a90]
>    java.lang.Thread.State: WAITING (parking)
> 	at sun.misc.Unsafe.park(Native Method)
> 	- parking to wait for  <0x00002aaae19feea0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> 	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1925)
> 	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:358)
> 	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x0000000060a62800 nid=0x36af in Object.wait()
[0x00000000432d6000..0x00000000432d6c10]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaadffcbef8> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x0000000060a62000 nid=0x36a4 in Object.wait()
[0x00000000451f5000..0x00000000451f5d90]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaaf1f280b8> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x0000000060ae0000 nid=0x3699 in Object.wait()
[0x0000000042dd1000..0x0000000042dd1b10]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaaf1f282d8> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x000000006079b400 nid=0x368e in Object.wait()
[0x00000000421c5000..0x00000000421c5c90]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaaf1f283e8> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x000000005fc25c00 nid=0x3683 in Object.wait()
[0x00000000448ec000..0x00000000448eca10]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaaf1f284f8> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "derby.rawStoreDaemon" daemon prio=10 tid=0x00000000608f2800 nid=0x3095 in Object.wait()
[0x00000000440e4000..0x00000000440e4c10]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at org.apache.derby.impl.services.daemon.BasicDaemon.rest(Unknown Source)
> 	- locked <0x00002aaab6b50dc0> (a org.apache.derby.impl.services.daemon.BasicDaemon)
> 	at org.apache.derby.impl.services.daemon.BasicDaemon.run(Unknown Source)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "derby.rawStoreDaemon" daemon prio=10 tid=0x00002aaaf84ff000 nid=0x3084 in Object.wait()
[0x0000000040569000..0x0000000040569c90]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at org.apache.derby.impl.services.daemon.BasicDaemon.rest(Unknown Source)
> 	- locked <0x00002aaab677ce60> (a org.apache.derby.impl.services.daemon.BasicDaemon)
> 	at org.apache.derby.impl.services.daemon.BasicDaemon.run(Unknown Source)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "derby.rawStoreDaemon" daemon prio=10 tid=0x00002aaaf819f400 nid=0x307a in Object.wait()
[0x0000000044aee000..0x0000000044aeed90]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at org.apache.derby.impl.services.daemon.BasicDaemon.rest(Unknown Source)
> 	- locked <0x00002aaab6c5aa40> (a org.apache.derby.impl.services.daemon.BasicDaemon)
> 	at org.apache.derby.impl.services.daemon.BasicDaemon.run(Unknown Source)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "Timer-1" daemon prio=10 tid=0x00002aaaf8518c00 nid=0x3079 in Object.wait() [0x00000000452f6000..0x00000000452f6a10]
>    java.lang.Thread.State: WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	- waiting on <0x00002aaab6f16598> (a java.util.TaskQueue)
> 	at java.lang.Object.wait(Object.java:485)
> 	at java.util.TimerThread.mainLoop(Timer.java:483)
> 	- locked <0x00002aaab6f16598> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "derby.antiGC" daemon prio=10 tid=0x00002aaaf84a8c00 nid=0x3078 in Object.wait() [0x00000000449ed000..0x00000000449eda90]
>    java.lang.Thread.State: WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	- waiting on <0x00002aaab6f130e8> (a org.apache.derby.impl.services.monitor.AntiGC)
> 	at java.lang.Object.wait(Object.java:485)
> 	at org.apache.derby.impl.services.monitor.AntiGC.run(Unknown Source)
> 	- locked <0x00002aaab6f130e8> (a org.apache.derby.impl.services.monitor.AntiGC)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "VmPipeIdleStatusChecker" daemon prio=10 tid=0x00002aaaf829f000 nid=0x2ff0 waiting on
condition [0x000000004020a000..0x000000004020aa90]
>    java.lang.Thread.State: TIMED_WAITING (sleeping)
> 	at java.lang.Thread.sleep(Native Method)
> 	at org.apache.mina.transport.vmpipe.support.VmPipeIdleStatusChecker$Worker.run(VmPipeIdleStatusChecker.java:78)
>
> "pool-17-thread-5" prio=10 tid=0x0000000060b12800 nid=0x2fde waiting on condition [0x0000000044ff3000..0x0000000044ff3a90]
>    java.lang.Thread.State: WAITING (parking)
> 	at sun.misc.Unsafe.park(Native Method)
> 	- parking to wait for  <0x00002aaab541ad60> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> 	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1925)
> 	at java.util.concurrent.ArrayBlockingQueue.take(ArrayBlockingQueue.java:317)
> 	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "pool-17-thread-4" prio=10 tid=0x00000000605d5400 nid=0x2fdd waiting on condition [0x0000000044ef2000..0x0000000044ef2b10]
>    java.lang.Thread.State: WAITING (parking)
> 	at sun.misc.Unsafe.park(Native Method)
> 	- parking to wait for  <0x00002aaab541ad60> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> 	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1925)
> 	at java.util.concurrent.ArrayBlockingQueue.take(ArrayBlockingQueue.java:317)
> 	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "pool-17-thread-3" prio=10 tid=0x0000000060076400 nid=0x2fdc waiting on condition [0x0000000044df1000..0x0000000044df1b90]
>    java.lang.Thread.State: WAITING (parking)
> 	at sun.misc.Unsafe.park(Native Method)
> 	- parking to wait for  <0x00002aaab541ad60> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> 	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1925)
> 	at java.util.concurrent.ArrayBlockingQueue.take(ArrayBlockingQueue.java:317)
> 	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "pool-17-thread-2" prio=10 tid=0x00000000605b6800 nid=0x2fdb waiting on condition [0x0000000044cf0000..0x0000000044cf0c10]
>    java.lang.Thread.State: WAITING (parking)
> 	at sun.misc.Unsafe.park(Native Method)
> 	- parking to wait for  <0x00002aaab541ad60> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> 	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1925)
> 	at java.util.concurrent.ArrayBlockingQueue.take(ArrayBlockingQueue.java:317)
> 	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "pool-17-thread-1" prio=10 tid=0x000000006086b800 nid=0x2fda waiting on condition [0x0000000040a55000..0x0000000040a55c90]
>    java.lang.Thread.State: WAITING (parking)
> 	at sun.misc.Unsafe.park(Native Method)
> 	- parking to wait for  <0x00002aaab541ad60> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> 	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1925)
> 	at java.util.concurrent.ArrayBlockingQueue.take(ArrayBlockingQueue.java:317)
> 	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "PooledByteBufferExpirer-0" daemon prio=10 tid=0x00002aaaf80ac800 nid=0x2fc1 waiting
on condition [0x00000000442e6000..0x00000000442e6b90]
>    java.lang.Thread.State: TIMED_WAITING (sleeping)
> 	at java.lang.Thread.sleep(Native Method)
> 	at org.apache.mina.common.PooledByteBufferAllocator$Expirer.run(PooledByteBufferAllocator.java:277)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x00002aaafc4d9000 nid=0x2fb2 in Object.wait()
[0x0000000043de1000..0x0000000043de1b10]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaab4d4d078> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x00002aaafc4d8000 nid=0x2fb0 in Object.wait()
[0x00000000446ea000..0x00000000446eac10]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaab4c95d40> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x00002aaafc4d7000 nid=0x2fae in Object.wait()
[0x00000000445e9000..0x00000000445e9d10]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaab503baa8> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x00002aaafc4d6400 nid=0x2fac in Object.wait()
[0x00000000444e8000..0x00000000444e8a10]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaab4dfebd8> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x00002aaafcbf7400 nid=0x2faa in Object.wait()
[0x0000000042fd3000..0x0000000042fd3b10]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaab4c92ea0> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "pool-13-thread-6" prio=10 tid=0x0000000060050800 nid=0x2f94 waiting on condition [0x0000000043ade000..0x0000000043adea10]
>    java.lang.Thread.State: WAITING (parking)
> 	at sun.misc.Unsafe.park(Native Method)
> 	- parking to wait for  <0x00002aaab45ae0f0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> 	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1925)
> 	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:358)
> 	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "PooledByteBufferExpirer-0" daemon prio=10 tid=0x00002aaaf8258400 nid=0x2f74 waiting
on condition [0x00000000443e7000..0x00000000443e7a10]
>    java.lang.Thread.State: TIMED_WAITING (sleeping)
> 	at java.lang.Thread.sleep(Native Method)
> 	at org.apache.mina.common.PooledByteBufferAllocator$Expirer.run(PooledByteBufferAllocator.java:277)
>
> "pool-13-thread-5" prio=10 tid=0x000000005fcac400 nid=0x2f64 waiting on condition [0x0000000043ee2000..0x0000000043ee2a10]
>    java.lang.Thread.State: WAITING (parking)
> 	at sun.misc.Unsafe.park(Native Method)
> 	- parking to wait for  <0x00002aaab45ae0f0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> 	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1925)
> 	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:358)
> 	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "FelixStartLevel" daemon prio=10 tid=0x000000005ff46000 nid=0x2f53 in Object.wait() [0x00000000441e5000..0x00000000441e5a90]
>    java.lang.Thread.State: WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	- waiting on <0x00002aaab511d768> (a java.util.ArrayList)
> 	at java.lang.Object.wait(Object.java:485)
> 	at org.apache.felix.framework.StartLevelImpl.run(StartLevelImpl.java:239)
> 	- locked <0x00002aaab511d768> (a java.util.ArrayList)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "FelixPackageAdmin" daemon prio=10 tid=0x0000000060140000 nid=0x2f52 in Object.wait()
[0x0000000043bdf000..0x0000000043bdfb10]
>    java.lang.Thread.State: WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	- waiting on <0x00002aaab5141130> (a org.apache.felix.framework.PackageAdminImpl)
> 	at java.lang.Object.wait(Object.java:485)
> 	at org.apache.felix.framework.PackageAdminImpl.run(PackageAdminImpl.java:245)
> 	- locked <0x00002aaab5141130> (a org.apache.felix.framework.PackageAdminImpl)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "FelixDispatchQueue" prio=10 tid=0x000000006013f800 nid=0x2f51 in Object.wait() [0x0000000043fe3000..0x0000000043fe3b90]
>    java.lang.Thread.State: WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	- waiting on <0x00002aaab51428f0> (a java.util.ArrayList)
> 	at java.lang.Object.wait(Object.java:485)
> 	at org.apache.felix.framework.util.EventDispatcher.run(EventDispatcher.java:764)
> 	- locked <0x00002aaab51428f0> (a java.util.ArrayList)
> 	at org.apache.felix.framework.util.EventDispatcher.access$000(EventDispatcher.java:29)
> 	at org.apache.felix.framework.util.EventDispatcher$1.run(EventDispatcher.java:77)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "pool-13-thread-4" prio=10 tid=0x00002aaaf8506400 nid=0x2ee4 waiting on condition [0x0000000043ce0000..0x0000000043ce0a10]
>    java.lang.Thread.State: WAITING (parking)
> 	at sun.misc.Unsafe.park(Native Method)
> 	- parking to wait for  <0x00002aaab45ae0f0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> 	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1925)
> 	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:358)
> 	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "pool-13-thread-2" prio=10 tid=0x00002aaaf80ccc00 nid=0x2ee0 waiting on condition [0x00000000438dc000..0x00000000438dcc10]
>    java.lang.Thread.State: WAITING (parking)
> 	at sun.misc.Unsafe.park(Native Method)
> 	- parking to wait for  <0x00002aaab45ae0f0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> 	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1925)
> 	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:358)
> 	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x00002aaaf8356c00 nid=0x2edb in Object.wait()
[0x00000000437db000..0x00000000437dba90]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaab45aeeb8> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x00002aaaf8253c00 nid=0x2ed9 in Object.wait()
[0x00000000439dd000..0x00000000439ddb90]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaab468d3a8> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x00002aaaf8266400 nid=0x2ed0 in Object.wait()
[0x00000000435d9000..0x00000000435d9c10]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaab46c59b0> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x00002aaaf8266c00 nid=0x2ecd in Object.wait()
[0x00000000434d8000..0x00000000434d8d90]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaab46c5ad0> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x00002aaaf820bc00 nid=0x2ecb in Object.wait()
[0x00000000436da000..0x00000000436daa90]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaab46c5bf0> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "Queue-housekeeping-test" daemon prio=10 tid=0x00002aaaf86ff400 nid=0x2ec9 in Object.wait()
[0x00000000433d7000..0x00000000433d7b90]
>    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	at java.util.TimerThread.mainLoop(Timer.java:509)
> 	- locked <0x00002aaab47964f8> (a java.util.TaskQueue)
> 	at java.util.TimerThread.run(Timer.java:462)
>
> "IoReceiver - /127.0.0.1:48490" daemon prio=10 tid=0x000000005fed9800 nid=0x2e5b runnable
[0x0000000042ace000..0x0000000042acea10]
>    java.lang.Thread.State: RUNNABLE
> 	at java.net.SocketInputStream.socketRead0(Native Method)
> 	at java.net.SocketInputStream.read(SocketInputStream.java:129)
> 	at org.apache.qpid.transport.network.io.IoReceiver.run(IoReceiver.java:123)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "IoSender - /127.0.0.1:48490" daemon prio=10 tid=0x000000005fed8800 nid=0x2e5a in Object.wait()
[0x00000000429cd000..0x00000000429cda90]
>    java.lang.Thread.State: WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	- waiting on <0x00002aaab41bf908> (a java.lang.Object)
> 	at java.lang.Object.wait(Object.java:485)
> 	at org.apache.qpid.transport.network.io.IoSender.run(IoSender.java:248)
> 	- locked <0x00002aaab41bf908> (a java.lang.Object)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "IoReceiver - localhost/127.0.0.1:12000" daemon prio=10 tid=0x00002aaaf849cc00 nid=0x2e59
runnable [0x00000000428cc000..0x00000000428ccb10]
>    java.lang.Thread.State: RUNNABLE
> 	at java.net.SocketInputStream.socketRead0(Native Method)
> 	at java.net.SocketInputStream.read(SocketInputStream.java:129)
> 	at org.apache.qpid.transport.network.io.IoReceiver.run(IoReceiver.java:123)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "IoSender - localhost/127.0.0.1:12000" daemon prio=10 tid=0x00002aaaf8357c00 nid=0x2e58
in Object.wait() [0x00000000424c8000..0x00000000424c8b90]
>    java.lang.Thread.State: WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	- waiting on <0x00002aaab41bfb60> (a java.lang.Object)
> 	at java.lang.Object.wait(Object.java:485)
> 	at org.apache.qpid.transport.network.io.IoSender.run(IoSender.java:248)
> 	- locked <0x00002aaab41bfb60> (a java.lang.Object)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "IoReceiver - /127.0.0.1:48489" daemon prio=10 tid=0x000000005fed7c00 nid=0x2e56 runnable
[0x0000000040ba7000..0x0000000040ba7c90]
>    java.lang.Thread.State: RUNNABLE
> 	at java.net.SocketInputStream.socketRead0(Native Method)
> 	at java.net.SocketInputStream.read(SocketInputStream.java:129)
> 	at org.apache.qpid.transport.network.io.IoReceiver.run(IoReceiver.java:123)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "IoReceiver - localhost/127.0.0.1:12000" daemon prio=10 tid=0x000000005fe08c00 nid=0x2e55
runnable [0x00000000425c9000..0x00000000425c9d10]
>    java.lang.Thread.State: RUNNABLE
> 	at java.net.SocketInputStream.socketRead0(Native Method)
> 	at java.net.SocketInputStream.read(SocketInputStream.java:129)
> 	at org.apache.qpid.transport.network.io.IoReceiver.run(IoReceiver.java:123)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "IoSender - /127.0.0.1:48489" daemon prio=10 tid=0x000000005fed3c00 nid=0x2e54 in Object.wait()
[0x00000000426ca000..0x00000000426cad90]
>    java.lang.Thread.State: WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	- waiting on <0x00002aaab3bb9f88> (a java.lang.Object)
> 	at java.lang.Object.wait(Object.java:485)
> 	at org.apache.qpid.transport.network.io.IoSender.run(IoSender.java:248)
> 	- locked <0x00002aaab3bb9f88> (a java.lang.Object)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "IoSender - localhost/127.0.0.1:12000" daemon prio=10 tid=0x000000005fed5c00 nid=0x2e53
in Object.wait() [0x00000000427cb000..0x00000000427cba10]
>    java.lang.Thread.State: WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	- waiting on <0x00002aaab3bba0b8> (a java.lang.Object)
> 	at java.lang.Object.wait(Object.java:485)
> 	at org.apache.qpid.transport.network.io.IoSender.run(IoSender.java:248)
> 	- locked <0x00002aaab3bba0b8> (a java.lang.Object)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "IoReceiver - /127.0.0.1:48474" daemon prio=10 tid=0x000000005fe07400 nid=0x2e2c runnable
[0x00000000423c7000..0x00000000423c7d90]
>    java.lang.Thread.State: RUNNABLE
> 	at java.net.SocketInputStream.socketRead0(Native Method)
> 	at java.net.SocketInputStream.read(SocketInputStream.java:129)
> 	at org.apache.qpid.transport.network.io.IoReceiver.run(IoReceiver.java:123)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "IoReceiver - localhost/127.0.0.1:12000" daemon prio=10 tid=0x00002aaafc0da000 nid=0x2e2b
runnable [0x0000000041f97000..0x0000000041f97a10]
>    java.lang.Thread.State: RUNNABLE
> 	at java.net.SocketInputStream.socketRead0(Native Method)
> 	at java.net.SocketInputStream.read(SocketInputStream.java:129)
> 	at org.apache.qpid.transport.network.io.IoReceiver.run(IoReceiver.java:123)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "IoSender - /127.0.0.1:48474" daemon prio=10 tid=0x000000005fe06400 nid=0x2e2a in Object.wait()
[0x0000000041e96000..0x0000000041e96a90]
>    java.lang.Thread.State: WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	- waiting on <0x00002aaab3bba2d8> (a java.lang.Object)
> 	at java.lang.Object.wait(Object.java:485)
> 	at org.apache.qpid.transport.network.io.IoSender.run(IoSender.java:248)
> 	- locked <0x00002aaab3bba2d8> (a java.lang.Object)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "IoSender - localhost/127.0.0.1:12000" daemon prio=10 tid=0x00002aaafc0d8800 nid=0x2e29
in Object.wait() [0x0000000040f0e000..0x0000000040f0eb10]
>    java.lang.Thread.State: WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	- waiting on <0x00002aaab41bf168> (a java.lang.Object)
> 	at java.lang.Object.wait(Object.java:485)
> 	at org.apache.qpid.transport.network.io.IoSender.run(IoSender.java:248)
> 	- locked <0x00002aaab41bf168> (a java.lang.Object)
> 	at java.lang.Thread.run(Thread.java:619)
>
> "Low Memory Detector" daemon prio=10 tid=0x000000005fa80800 nid=0x2dc1 runnable [0x0000000000000000..0x0000000000000000]
>    java.lang.Thread.State: RUNNABLE
>
> "CompilerThread1" daemon prio=10 tid=0x000000005fa7dc00 nid=0x2dc0 waiting on condition
[0x0000000000000000..0x0000000041a915a0]
>    java.lang.Thread.State: RUNNABLE
>
> "CompilerThread0" daemon prio=10 tid=0x000000005fa77000 nid=0x2dbf waiting on condition
[0x0000000000000000..0x0000000041881620]
>    java.lang.Thread.State: RUNNABLE
>
> "Signal Dispatcher" daemon prio=10 tid=0x000000005fa75000 nid=0x2dbe runnable [0x0000000000000000..0x000000004036c6a0]
>    java.lang.Thread.State: RUNNABLE
>
> "Finalizer" daemon prio=10 tid=0x000000005fa51800 nid=0x2db9 in Object.wait() [0x0000000041781000..0x0000000041781a90]
>    java.lang.Thread.State: WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	- waiting on <0x00002aaab36fe4f0> (a java.lang.ref.ReferenceQueue$Lock)
> 	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116)
> 	- locked <0x00002aaab36fe4f0> (a java.lang.ref.ReferenceQueue$Lock)
> 	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132)
> 	at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)
>
> "Reference Handler" daemon prio=10 tid=0x000000005fa4fc00 nid=0x2db8 in Object.wait()
[0x0000000041680000..0x0000000041680b10]
>    java.lang.Thread.State: WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	- waiting on <0x00002aaab36fe4a8> (a java.lang.ref.Reference$Lock)
> 	at java.lang.Object.wait(Object.java:485)
> 	at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
> 	- locked <0x00002aaab36fe4a8> (a java.lang.ref.Reference$Lock)
>
> "main" prio=10 tid=0x000000005f9c6000 nid=0x2db1 waiting on condition [0x0000000041099000..0x000000004109bed0]
>    java.lang.Thread.State: TIMED_WAITING (parking)
> 	at sun.misc.Unsafe.park(Native Method)
> 	- parking to wait for  <0x00002aaae37b60d8> (a java.util.concurrent.CountDownLatch$Sync)
> 	at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedNanos(AbstractQueuedSynchronizer.java:947)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireSharedNanos(AbstractQueuedSynchronizer.java:1239)
> 	at java.util.concurrent.CountDownLatch.await(CountDownLatch.java:253)
> 	at org.apache.qpid.test.unit.ack.AcknowledgeOnMessageTest.testAcking(AcknowledgeOnMessageTest.java:81)
> 	at org.apache.qpid.test.unit.ack.AcknowledgeTest.testNoAck(AcknowledgeTest.java:148)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at junit.framework.TestCase.runTest(TestCase.java:164)
> 	at junit.framework.TestCase.runBare(TestCase.java:130)
> 	at org.apache.qpid.test.utils.QpidTestCase.runBare(QpidTestCase.java:236)
> 	at junit.framework.TestResult$1.protect(TestResult.java:106)
> 	at junit.framework.TestResult.runProtected(TestResult.java:124)
> 	at junit.framework.TestResult.run(TestResult.java:109)
> 	at junit.framework.TestCase.run(TestCase.java:120)
> 	at org.apache.qpid.test.utils.QpidTestCase.run(QpidTestCase.java:295)
> 	at junit.framework.TestSuite.runTest(TestSuite.java:230)
> 	at junit.framework.TestSuite.run(TestSuite.java:225)
> 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:297)
> 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.executeInVM(JUnitTask.java:1072)
> 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.execute(JUnitTask.java:682)
> 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.executeOrQueue(JUnitTask.java:1434)
> 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.execute(JUnitTask.java:633)
> 	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
> 	at org.apache.tools.ant.Task.perform(Task.java:364)
> 	at org.apache.tools.ant.Target.execute(Target.java:341)
> 	at org.apache.tools.ant.Target.performTasks(Target.java:369)
> 	at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
> 	at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:37)
> 	at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
> 	at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:382)
> 	at org.apache.tools.ant.taskdefs.SubAnt.execute(SubAnt.java:277)
> 	at org.apache.tools.ant.taskdefs.SubAnt.execute(SubAnt.java:201)
> 	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
> 	at org.apache.tools.ant.Task.perform(Task.java:364)
> 	at org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:64)
> 	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
> 	at org.apache.tools.ant.Task.perform(Task.java:364)
> 	at org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:378)
> 	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
> 	at org.apache.tools.ant.Task.perform(Task.java:364)
> 	at org.apache.tools.ant.Target.execute(Target.java:341)
> 	at org.apache.tools.ant.Target.performTasks(Target.java:369)
> 	at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
> 	at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
> 	at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
> 	at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
> 	at org.apache.tools.ant.Main.runBuild(Main.java:668)
> 	at org.apache.tools.ant.Main.startAnt(Main.java:187)
> 	at org.apache.tools.ant.launch.Launcher.run(Launcher.java:246)
> 	at org.apache.tools.ant.launch.Launcher.main(Launcher.java:67)
>
> "VM Thread" prio=10 tid=0x000000005fa4a400 nid=0x2db7 runnable
>
> "GC task thread#0 (ParallelGC)" prio=10 tid=0x000000005f9d0800 nid=0x2db2 runnable
>
> "GC task thread#1 (ParallelGC)" prio=10 tid=0x000000005f9d2400 nid=0x2db3 runnable
>
> "GC task thread#2 (ParallelGC)" prio=10 tid=0x000000005f9d3c00 nid=0x2db4 runnable
>
> "GC task thread#3 (ParallelGC)" prio=10 tid=0x000000005f9d5400 nid=0x2db5 runnable
>
> "VM Periodic Task Thread" prio=10 tid=0x000000005fa82c00 nid=0x2dc2 waiting on condition
>
> JNI global references: 728

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Apache Qpid - AMQP Messaging Implementation
Project:      http://qpid.apache.org
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