ConcurrentModificationException on close

2013-11-14 18:25:21,581 ERROR [org.jboss.remoting.resource] (MSC service thread 1-1) Close action for Remoting remote connection provider 4a6e46ae for endpoint "jbossas-with-remote-outbound-connection" <6f1d9bb0> failed to execute (resource may be left in an indeterminate state): java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextEntry(HashMap.java:894) [rt.jar:1.7.0_25]
	at java.util.HashMap$KeyIterator.next(HashMap.java:928) [rt.jar:1.7.0_25]
	at org.jboss.remoting3.remote.RemoteConnectionProvider.closeAction(RemoteConnectionProvider.java:249) [jboss-remoting-4.0.0.Beta2.jar:4.0.0.Beta2]
	at org.jboss.remoting3.spi.AbstractHandleableCloseable.closeAsync(AbstractHandleableCloseable.java:359) [jboss-remoting-4.0.0.Beta2.jar:4.0.0.Beta2]
	at org.jboss.remoting3.EndpointImpl.closeAction(EndpointImpl.java:206) [jboss-remoting-4.0.0.Beta2.jar:4.0.0.Beta2]
	at org.jboss.remoting3.spi.AbstractHandleableCloseable.closeAsync(AbstractHandleableCloseable.java:359) [jboss-remoting-4.0.0.Beta2.jar:4.0.0.Beta2]
	at org.jboss.as.remoting.EndpointService.stop(EndpointService.java:96) [wildfly-remoting-8.0.0.Beta2-SNAPSHOT.jar:8.0.0.Beta2-SNAPSHOT]
	at org.jboss.msc.service.ServiceControllerImpl$StopTask.stopService(ServiceControllerImpl.java:2056) [jboss-msc-1.2.0.CR1.jar:1.2.0.CR1]
	at org.jboss.msc.service.ServiceControllerImpl$StopTask.run(ServiceControllerImpl.java:2017) [jboss-msc-1.2.0.CR1.jar:1.2.0.CR1]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_25]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_25]
	at java.lang.Thread.run(Thread.java:724) [rt.jar:1.7.0_25]