RemoteSession.doSynchronousClusterTask: NullPointerException

Hi,

we are seeing the following stacktrace in our Openfire 3.9.3 logs, hazelcast 1.2.2.

It should be this line:

https://github.com/igniterealtime/Openfire/blob/v3.9.3/src/plugins/hazelcast/src /java/com/jivesoftware/openfire/session/…

Any ideas, thanks!

2015.09.18 13:29:13 org.jivesoftware.openfire.event.SessionEventDispatcher -  
   java.lang.NullPointerException 
    at com.jivesoftware.openfire.session.RemoteSession.doSynchronousClusterTask(Remote Session.java:175) 
    at com.jivesoftware.openfire.session.RemoteSession.getCreationDate(RemoteSession.j ava:97) 
    at com.cgm.connect.openfire.SessionStatistic.sessionDestroyed(SessionStatistic.jav a:135) 
   at org.jivesoftware.openfire.event.SessionEventDispatcher.dispatchEvent(SessionEve ntDispatcher.java:78) 
   at org.jivesoftware.openfire.SessionManager.removeSession(SessionManager.java:1104 ) 
    at com.jivesoftware.openfire.session.RemoteSession.doSynchronousClusterTask(Remote Session.java:175) 
    at com.jivesoftware.openfire.session.RemoteClientSession.incrementConflictCount(Re moteClientSession.java:155) 
   at org.jivesoftware.openfire.handler.IQBindHandler.handleIQ(IQBindHandler.java:134 ) 
   at org.jivesoftware.openfire.handler.IQHandler.process(IQHandler.java:65) 
   at org.jivesoftware.openfire.IQRouter.handle(IQRouter.java:375) 
   at org.jivesoftware.openfire.IQRouter.route(IQRouter.java:122) 
   at org.jivesoftware.openfire.spi.PacketRouterImpl.route(PacketRouterImpl.java:76) 
   at org.jivesoftware.openfire.net.StanzaHandler.processIQ(StanzaHandler.java:330) 
   at org.jivesoftware.openfire.net.ClientStanzaHandler.processIQ(ClientStanzaHandler .java:93) 
   at org.jivesoftware.openfire.net.StanzaHandler.process(StanzaHandler.java:295) 
   at org.jivesoftware.openfire.net.StanzaHandler.process(StanzaHandler.java:187) 
   at org.jivesoftware.openfire.nio.ConnectionHandler.messageReceived(ConnectionHandl er.java:181) 
    at org.apache.mina.common.support.AbstractIoFilterChain$TailFilter.messageReceived (AbstractIoFilterChain.java:570) 
    at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(Ab stractIoFilterChain.java:299) 
    at org.apache.mina.common.support.AbstractIoFilterChain.access$1100(AbstractIoFilt erChain.java:53) 
    at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceive d(AbstractIoFilterChain.java:648) 
    at org.apache.mina.common.IoFilterAdapter.messageReceived(IoFilterAdapter.java:80)  
    at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(Ab stractIoFilterChain.java:299) 
    at org.apache.mina.common.support.AbstractIoFilterChain.access$1100(AbstractIoFilt erChain.java:53) 
    at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceive d(AbstractIoFilterChain.java:648) 
    at org.apache.mina.filter.codec.support.SimpleProtocolDecoderOutput.flush(SimplePr otocolDecoderOutput.java:58) 
    at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecF ilter.java:185) 
    at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(Ab stractIoFilterChain.java:299) 
    at org.apache.mina.common.support.AbstractIoFilterChain.access$1100(AbstractIoFilt erChain.java:53) 
    at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceive d(AbstractIoFilterChain.java:648) 
    at org.apache.mina.filter.executor.ExecutorFilter.processEvent(ExecutorFilter.java :239) 
    at org.apache.mina.filter.executor.ExecutorFilter$ProcessEventsRunnable.run(Execut orFilter.java:283) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)  
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)  
    at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)  
    at java.lang.Thread.run(Thread.java:745)