org.jivesoftware.openfire.http.HttpSession$HttpVirtualConnection@632f53b9
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
at java.util.ArrayList$Itr.next(ArrayList.java:851)
at org.jivesoftware.openfire.http.HttpSession.closeSession(HttpSession.java:1043)
at org.jivesoftware.openfire.http.HttpSession.access$800(HttpSession.java:76)
at org.jivesoftware.openfire.http.HttpSession$HttpVirtualConnection.closeVirtualCo nnection(HttpSession.java:1120)
at org.jivesoftware.openfire.net.VirtualConnection.close(VirtualConnection.java:19 6)
at org.jivesoftware.openfire.http.HttpSession.close(HttpSession.java:195)
at org.jivesoftware.openfire.http.HttpSessionManager$HttpSessionReaper.run(HttpSes sionManager.java:360)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
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)