NullPointerException while logging in sometimes

• Acceptance Test - Add?:

  No

2008.09.18 09:10:35 [org.jivesoftware.openfire.nio.ConnectionHandler.messageReceived(ConnectionHandler.java:135)] Closing connection due to error while processing message: <iq type='result' to='someone@openfire.some/Miranda'><query xmlns='jabber:iq:version'><name>Miranda IM 0.7.0 preview release #1 Unicode (Jabber v.0.7.0.13 [Miranda])</name><version>0.7.0.13</version><os>Windows XP</os></query></iq>
java.lang.NullPointerException
at java.util.concurrent.ConcurrentHashMap.remove(Unknown Source)
at org.jivesoftware.openfire.IQRouter.handle(IQRouter.java:284)
at org.jivesoftware.openfire.IQRouter.route(IQRouter.java:101)
at org.jivesoftware.openfire.spi.PacketRouterImpl.route(PacketRouterImpl.java:68)
at org.jivesoftware.openfire.net.StanzaHandler.processIQ(StanzaHandler.java:311)
at org.jivesoftware.openfire.net.ClientStanzaHandler.processIQ(ClientStanzaHandler.java:79)
at org.jivesoftware.openfire.net.StanzaHandler.process(StanzaHandler.java:276)
at org.jivesoftware.openfire.net.StanzaHandler.process(StanzaHandler.java:175)
at org.jivesoftware.openfire.nio.ConnectionHandler.messageReceived(ConnectionHandler.java:133)
at org.apache.mina.common.support.AbstractIoFilterChain$TailFilter.messageReceived(AbstractIoFilterChain.java:570)
at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:299)
at org.apache.mina.common.support.AbstractIoFilterChain.access$1100(AbstractIoFilterChain.java:53)
at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:648)
at org.apache.mina.common.IoFilterAdapter.messageReceived(IoFilterAdapter.java:80)
at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:299)
at org.apache.mina.common.support.AbstractIoFilterChain.access$1100(AbstractIoFilterChain.java:53)
at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:648)