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

jvm-hang.txt 11K Download