Hang in InfinispanRegionFactory method stopCacheManager() in JBoss EAP

Issue

• When executing the CLI reload command JBoss hangs

• Stack traces show one or more threads hang (while attempting to stop persistence units) like the below

  "ServerService Thread Pool -- 1352" #20432 prio=5 os_prio=0 tid=0x000000002df18000 nid=0xdfc in Object.wait() [0x00000000240ee000]
     java.lang.Thread.State: WAITING (on object monitor)
      at java.lang.Object.wait(Native Method)
      at java.lang.Object.wait(Object.java:502)
      at org.jboss.msc.service.StabilityMonitor.awaitStability(StabilityMonitor.java:307)
      - locked <0x00000000d6780f98> (a java.lang.Object)
      at org.jboss.msc.service.StabilityMonitor.awaitStability(StabilityMonitor.java:222)
      at org.jboss.as.clustering.msc.ServiceContainerHelper.transition(ServiceContainerHelper.java:137)
      at org.jboss.as.clustering.msc.ServiceContainerHelper.remove(ServiceContainerHelper.java:116)
      at org.jboss.as.jpa.hibernate4.infinispan.InfinispanRegionFactory.stopCacheManager(InfinispanRegionFactory.java:100)
      at org.hibernate.cache.infinispan.InfinispanRegionFactory.stop(InfinispanRegionFactory.java:358)
      at org.hibernate.internal.CacheImpl.close(CacheImpl.java:289)
      at org.hibernate.internal.SessionFactoryImpl.close(SessionFactoryImpl.java:1396)
      at org.hibernate.ejb.EntityManagerFactoryImpl.close(EntityManagerFactoryImpl.java:208)
      at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$2.run(PersistenceUnitServiceImpl.java:124)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      at java.lang.Thread.run(Thread.java:745)
      at org.jboss.threads.JBossThread.run(JBossThread.java:122)