I'm having similar issue but the domain name is valid
2014.10.08 21:24:18 org.jivesoftware.openfire.handler.PresenceUpdateHandler - Internal server error. Triggered by packet:
<presence type="unavailable" from="4a4781b8-38c3-4141-9307-5b0409f7b20b@accounts.duuzra.com/iPad"/>
java.lang.NullPointerException: Domain cannot be null
at org.xmpp.packet.JID.<init>(JID.java:512)
at org.jivesoftware.openfire.SessionManager.getActiveSessionCount(SessionManager.j ava:936)
at org.jivesoftware.openfire.spi.PresenceManagerImpl.userUnavailable(PresenceManag erImpl.java:251)
at org.jivesoftware.openfire.handler.PresenceUpdateHandler.process(PresenceUpdateH andler.java:168)
at org.jivesoftware.openfire.handler.PresenceUpdateHandler.process(PresenceUpdateH andler.java:135)
at org.jivesoftware.openfire.handler.PresenceUpdateHandler.process(PresenceUpdateH andler.java:199)
at org.jivesoftware.openfire.PresenceRouter.handle(PresenceRouter.java:148)
at org.jivesoftware.openfire.PresenceRouter.route(PresenceRouter.java:84)
at org.jivesoftware.openfire.spi.PacketRouterImpl.route(PacketRouterImpl.java:84)
at org.jivesoftware.openfire.SessionManager$ClientSessionListener.onConnectionClos e(SessionManager.java:1164)
at org.jivesoftware.openfire.nio.NIOConnection.notifyCloseListeners(NIOConnection. java:223)
at org.jivesoftware.openfire.nio.NIOConnection.close(NIOConnection.java:206)
at org.jivesoftware.openfire.nio.ConnectionHandler.sessionClosed(ConnectionHandler .java:104)
at org.apache.mina.common.support.AbstractIoFilterChain$TailFilter.sessionClosed(A bstractIoFilterChain.java:550)
at org.apache.mina.common.support.AbstractIoFilterChain.callNextSessionClosed(Abst ractIoFilterChain.java:269)
at org.apache.mina.common.support.AbstractIoFilterChain.access$800(AbstractIoFilte rChain.java:53)
at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.sessionClosed( AbstractIoFilterChain.java:633)
at org.apache.mina.common.IoFilterAdapter.sessionClosed(IoFilterAdapter.java:65)
at org.apache.mina.common.support.AbstractIoFilterChain.callNextSessionClosed(Abst ractIoFilterChain.java:269)
at org.apache.mina.common.support.AbstractIoFilterChain.access$800(AbstractIoFilte rChain.java:53)
at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.sessionClosed( AbstractIoFilterChain.java:633)
at org.apache.mina.filter.codec.ProtocolCodecFilter.sessionClosed(ProtocolCodecFil ter.java:259)
at org.apache.mina.common.support.AbstractIoFilterChain.callNextSessionClosed(Abst ractIoFilterChain.java:269)
at org.apache.mina.common.support.AbstractIoFilterChain.access$800(AbstractIoFilte rChain.java:53)
at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.sessionClosed( AbstractIoFilterChain.java:633)
at org.apache.mina.filter.executor.ExecutorFilter.processEvent(ExecutorFilter.java :249)
at org.apache.mina.filter.executor.ExecutorFilter$ProcessEventsRunnable.run(Execut orFilter.java:283)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)
at java.lang.Thread.run(Unknown Source)