Found one Java-level deadlock:
=============================
"pool-2-thread-12622":
  waiting to lock monitor 0x00007f771401aa58 (object 0x0000000702646438, a java.util.ArrayDeque),
  which is held by "Remoting "XXXXX.com" read-1"
"Remoting "XXXXX.com" read-1":
  waiting to lock monitor 0x00007f76ec1d1f78 (object 0x000000071e4b4318, a java.util.Collections$SynchronizedSet),
  which is held by "pool-2-thread-12622"


Java stack information for the threads listed above:
===================================================
"pool-2-thread-12622":
        at org.jboss.remoting3.remote.RemoteConnectionHandler.dumpState(RemoteConnectionHandler.java:430)
        - waiting to lock <0x0000000702646438> (a java.util.ArrayDeque)
        at org.jboss.remoting3.remote.RemoteConnectionProvider.doGetConnectionState(RemoteConnectionProvider.java:141)
        - locked <0x000000071e4b4318> (a java.util.Collections$SynchronizedSet)
        at org.jboss.remoting3.remote.RemoteConnectionProvider.doGetConnectionState(RemoteConnectionProvider.java:148)
        at org.jboss.remoting3.remote.RemoteConnectionProvider.access$100(RemoteConnectionProvider.java:76)
        at org.jboss.remoting3.remote.RemoteConnectionProvider$1.dumpConnectionStateToString(RemoteConnectionProvider.java:121)
        at sun.reflect.GeneratedMethodAccessor2882.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:75)
        at sun.reflect.GeneratedMethodAccessor408.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:279)
        at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:193)
        at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:175)
        at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:117)
        at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:54)
        at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:237)
        at com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:138)
        at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:252)
        at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
        at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
        at org.jboss.as.jmx.PluggableMBeanServerImpl$TcclMBeanServer.invoke(PluggableMBeanServerImpl.java:1455)
        at org.jboss.as.jmx.PluggableMBeanServerImpl.invoke(PluggableMBeanServerImpl.java:731)
        at org.jboss.remotingjmx.protocol.v2.ServerProxy$InvokeHandler.handle(ServerProxy.java:952)
        at org.jboss.remotingjmx.protocol.v2.ServerCommon$MessageReciever$1$1.run(ServerCommon.java:153)
        at org.jboss.as.jmx.ServerInterceptorFactory$Interceptor$1.run(ServerInterceptorFactory.java:75)
        at org.jboss.as.jmx.ServerInterceptorFactory$Interceptor$1.run(ServerInterceptorFactory.java:70)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at org.jboss.as.controller.AccessAuditContext.doAs(AccessAuditContext.java:94)
        at org.jboss.as.jmx.ServerInterceptorFactory$Interceptor.handleEvent(ServerInterceptorFactory.java:70)
        at org.jboss.remotingjmx.protocol.v2.ServerCommon$MessageReciever$1.run(ServerCommon.java:149)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)


"Remoting "XXXXX.com" read-1":
        at java.util.Collections$SynchronizedCollection.remove(Collections.java:1639)
        - waiting to lock <0x000000071e4b4318> (a java.util.Collections$SynchronizedSet)
        at org.jboss.remoting3.remote.RemoteConnectionProvider.removeConnectionHandler(RemoteConnectionProvider.java:275)
        at org.jboss.remoting3.remote.RemoteConnectionHandler.handleConnectionClose(RemoteConnectionHandler.java:117)
        at org.jboss.remoting3.remote.RemoteReadListener.handleEvent(RemoteReadListener.java:81)
        - locked <0x0000000702646438> (a java.util.ArrayDeque)
        at org.jboss.remoting3.remote.RemoteReadListener.handleEvent(RemoteReadListener.java:45)
        at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:72)
        at org.xnio.channels.TranslatingSuspendableChannel.handleReadable(TranslatingSuspendableChannel.java:189)
        at org.xnio.channels.TranslatingSuspendableChannel$1.handleEvent(TranslatingSuspendableChannel.java:103)
        at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:72)
        at org.xnio.nio.NioHandle.run(NioHandle.java:90)
        at org.xnio.nio.WorkerThread.run(WorkerThread.java:198)

Found 1 deadlock.