I have a command line utility that calls (exit 0) at the end of
(-main). It looks like this:
(defn exit [status]
(shutdown-agents)
(flush)
(System/exit status))
Yet, despite this, the JVM never exits. Here is a snippet of jstack
output:
--8<---------------cut here---------------start------------->8---
"DestroyJavaVM" prio=10 tid=0x00000000406c7c00 nid=0x445d waiting on
condition [0x0000000000000000..0x0000000041e48d10]
java.lang.Thread.State: RUNNABLE
Locked ownable synchronizers:
- None
"pool-1-thread-10" prio=10 tid=0x00007fd9744fac00 nid=0x447c waiting on
condition [0x0000000042e58000..0x0000000042e58da0]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00007fd981140198> (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$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
--8<---------------cut here---------------end--------------->8---
What else can I try to force everything to shut down?
Thanks!
-Drew
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2009-04-03 12:47:08
Full thread dump Java HotSpot(TM) 64-Bit Server VM (11.2-b01 mixed mode):
"Attach Listener" daemon prio=10 tid=0x00007fd974552800 nid=0x4d33 waiting on
condition [0x0000000000000000..0x0000000000000000]
java.lang.Thread.State: RUNNABLE
Locked ownable synchronizers:
- None
"DestroyJavaVM" prio=10 tid=0x00000000406c7c00 nid=0x445d waiting on condition
[0x0000000000000000..0x0000000041e48d10]
java.lang.Thread.State: RUNNABLE
Locked ownable synchronizers:
- None
"pool-1-thread-10" prio=10 tid=0x00007fd9744fac00 nid=0x447c waiting on
condition [0x0000000042e58000..0x0000000042e58da0]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00007fd981140198> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$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)
Locked ownable synchronizers:
- None
"pool-1-thread-9" prio=10 tid=0x00007fd97444d400 nid=0x447b waiting on
condition [0x0000000042d57000..0x0000000042d57a20]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00007fd981140198> (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$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"pool-1-thread-8" prio=10 tid=0x00007fd974323000 nid=0x447a waiting on
condition [0x0000000042c56000..0x0000000042c56aa0]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00007fd981140198> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$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)
Locked ownable synchronizers:
- None
"pool-1-thread-7" prio=10 tid=0x00007fd9740c5800 nid=0x4479 waiting on
condition [0x0000000042b55000..0x0000000042b55b20]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00007fd981140198> (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$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"pool-1-thread-6" prio=10 tid=0x00007fd974194c00 nid=0x4478 waiting on
condition [0x0000000042a54000..0x0000000042a54ba0]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00007fd981140198> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$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)
Locked ownable synchronizers:
- None
"pool-1-thread-5" prio=10 tid=0x00007fd97474d000 nid=0x4477 waiting on
condition [0x0000000042953000..0x0000000042953c20]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00007fd981140198> (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$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"pool-1-thread-4" prio=10 tid=0x00007fd97a91e000 nid=0x4476 waiting on
condition [0x00000000403af000..0x00000000403afca0]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00007fd981140198> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$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)
Locked ownable synchronizers:
- None
"pool-1-thread-3" prio=10 tid=0x00007fd97ad83c00 nid=0x4475 waiting on
condition [0x0000000042852000..0x0000000042852d20]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00007fd981140198> (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$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"pool-1-thread-2" prio=10 tid=0x00007fd97ac48000 nid=0x4474 waiting on
condition [0x0000000042751000..0x0000000042751da0]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00007fd981140198> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$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)
Locked ownable synchronizers:
- None
"pool-1-thread-1" prio=10 tid=0x00007fd974003800 nid=0x4473 waiting on
condition [0x0000000042650000..0x0000000042650a20]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00007fd981140198> (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$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"Low Memory Detector" daemon prio=10 tid=0x00007fd97ade8800 nid=0x446c runnable
[0x0000000000000000..0x0000000000000000]
java.lang.Thread.State: RUNNABLE
Locked ownable synchronizers:
- None
"CompilerThread1" daemon prio=10 tid=0x00007fd97ade5800 nid=0x446b waiting on
condition [0x0000000000000000..0x000000004159f5b0]
java.lang.Thread.State: RUNNABLE
Locked ownable synchronizers:
- None
"CompilerThread0" daemon prio=10 tid=0x00007fd97ade3800 nid=0x446a waiting on
condition [0x0000000000000000..0x000000004149e630]
java.lang.Thread.State: RUNNABLE
Locked ownable synchronizers:
- None
"Signal Dispatcher" daemon prio=10 tid=0x0000000040749400 nid=0x4469 runnable
[0x0000000000000000..0x000000004139e6b0]
java.lang.Thread.State: RUNNABLE
Locked ownable synchronizers:
- None
"Finalizer" daemon prio=10 tid=0x000000004073a400 nid=0x4468 in Object.wait()
[0x0000000040849000..0x0000000040849aa0]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00007fd981143428> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116)
- locked <0x00007fd981143428> (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)
Locked ownable synchronizers:
- None
"Reference Handler" daemon prio=10 tid=0x0000000040738400 nid=0x4467 in
Object.wait() [0x00000000405cd000..0x00000000405cdb20]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00007fd981143578> (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 <0x00007fd981143578> (a java.lang.ref.Reference$Lock)
Locked ownable synchronizers:
- None
"VM Thread" prio=10 tid=0x0000000040732c00 nid=0x4466 runnable
"GC task thread#0 (ParallelGC)" prio=10 tid=0x00000000406d2800 nid=0x445e
runnable
"GC task thread#1 (ParallelGC)" prio=10 tid=0x00000000406d4000 nid=0x445f
runnable
"GC task thread#2 (ParallelGC)" prio=10 tid=0x00000000406d5c00 nid=0x4460
runnable
"GC task thread#3 (ParallelGC)" prio=10 tid=0x00000000406d7400 nid=0x4461
runnable
"GC task thread#4 (ParallelGC)" prio=10 tid=0x00000000406d8c00 nid=0x4462
runnable
"GC task thread#5 (ParallelGC)" prio=10 tid=0x00000000406da800 nid=0x4463
runnable
"GC task thread#6 (ParallelGC)" prio=10 tid=0x00000000406dc000 nid=0x4464
runnable
"GC task thread#7 (ParallelGC)" prio=10 tid=0x00000000406dd800 nid=0x4465
runnable
"VM Periodic Task Thread" prio=10 tid=0x00007fd97adea400 nid=0x446d waiting on
condition
JNI global references: 1177
