2016-09-23 15:47:18.874 [ConnectionOpenThread]  SocketThread.<clinit>()       WARNING:  33 socketWriteThreads started.
2016-09-23 15:47:18.889 [ResultsListener-socketWriteThread-31]  SocketThread$ResultsListener.run()  WARNING: Protocol execution exception.
java.util.concurrent.ExecutionException: java.lang.NullPointerException
	at java.util.concurrent.FutureTask.report(FutureTask.java:122)
	at java.util.concurrent.FutureTask.get(FutureTask.java:192)
	at tigase.net.SocketThread$ResultsListener.run(SocketThread.java:568)
Caused by: java.lang.NullPointerException
	at tigase.server.AbstractMessageReceiver.addTimerTask(AbstractMessageReceiver.java:1093)
	at tigase.server.AbstractMessageReceiver$PacketReceiverTask.<init>(AbstractMessageReceiver.java:1240)
	at tigase.server.AbstractMessageReceiver$PacketReceiverTask.<init>(AbstractMessageReceiver.java:1225)
	at tigase.server.AbstractMessageReceiver.addOutPacketWithTimeout(AbstractMessageReceiver.java:1079)
	at tigase.server.xmppclient.ClientConnectionManager.xmppStreamClosed(ClientConnectionManager.java:406)
	at tigase.server.xmppclient.ClientConnectionManager.serviceStopped(ClientConnectionManager.java:317)
	at tigase.server.xmppclient.ClientConnectionManager.serviceStopped(ClientConnectionManager.java:64)
	at tigase.net.IOService.forceStop(IOService.java:321)
	at tigase.xmpp.XMPPIOService.forceStop(XMPPIOService.java:300)
	at tigase.xmpp.XMPPIOService.processSocketData(XMPPIOService.java:750)
	at tigase.net.IOService.call(IOService.java:248)
	at tigase.xmpp.XMPPIOService.call(XMPPIOService.java:214)
	at tigase.xmpp.XMPPIOService.call(XMPPIOService.java:64)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	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)