Server deadlock on stop

Found one Java-level deadlock:
=============================
"undefined":
  waiting to lock monitor 0x00007fbaa806d448 (object 0x00000000e0a5a6f8, a org.jboss.as.threads.ScheduledThreadPoolService),
  which is held by "MSC service thread 1-2"
"MSC service thread 1-2":
  waiting for ownable synchronizer 0x00000000e0a5a680, (a java.util.concurrent.locks.ReentrantLock$NonfairSync),
  which is held by "undefined"

Java stack information for the threads listed above:
===================================================
"undefined":
	at org.jboss.as.threads.ScheduledThreadPoolService$ExecutorImpl.terminated(ScheduledThreadPoolService.java:121)
	- waiting to lock <0x00000000e0a5a6f8> (a org.jboss.as.threads.ScheduledThreadPoolService)
	at java.util.concurrent.ThreadPoolExecutor.tryTerminate(ThreadPoolExecutor.java:706)
	at java.util.concurrent.ThreadPoolExecutor.processWorkerExit(ThreadPoolExecutor.java:1007)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1160)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
	at org.jboss.threads.JBossThread.run(JBossThread.java:122)
"MSC service thread 1-2":
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000e0a5a680> (a java.util.concurrent.locks.ReentrantLock$NonfairSync)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199)
	at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209)
	at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285)
	at java.util.concurrent.ThreadPoolExecutor.interruptIdleWorkers(ThreadPoolExecutor.java:783)
	at java.util.concurrent.ThreadPoolExecutor.tryTerminate(ThreadPoolExecutor.java:697)
	at java.util.concurrent.ThreadPoolExecutor.shutdown(ThreadPoolExecutor.java:1394)
	at java.util.concurrent.ScheduledThreadPoolExecutor.shutdown(ScheduledThreadPoolExecutor.java:761)
	at org.jboss.as.threads.ManagedScheduledExecutorService.internalShutdown(ManagedScheduledExecutorService.java:53)
	at org.jboss.as.threads.ScheduledThreadPoolService.stop(ScheduledThreadPoolService.java:67)
	- locked <0x00000000e0a5a6f8> (a org.jboss.as.threads.ScheduledThreadPoolService)
	at org.jboss.msc.service.ServiceControllerImpl$StopTask.stopService(ServiceControllerImpl.java:2056)
	at org.jboss.msc.service.ServiceControllerImpl$StopTask.run(ServiceControllerImpl.java:2017)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

Found 1 deadlock.