Null pointer exception at com.wowza.wms.stream.live.MediaStreamLive.close

Hello,

I m having a problem with rtsp/rtp stream getting disconnected which is coming from live encoder, Initially I was getting RTSPSessionTimeOut with the exception

ERROR   server  comment 2014-07-21      06:25:28        757866633       10.100.200.54   -       906003490       0       246488.956      -       -       -       -       -       -       -       -       RTPStream.shutdown[stream.close:{mdr:null stm:com.wowza.wms.stream.live.MediaStreamLive@33ad828b udp:com.wowza.wms.rtp.transport.RTPUDPTransportMina@44558e2e app:com.wowza.wms.application.ApplicationInstance@44ab6493}:com.wowza.wms.stream.live.LiveReceiver.trim(LiveReceiver.java:2781)] : java.lang.NullPointerException|at com.wowza.wms.stream.live.LiveReceiver.trim(LiveReceiver.java:2781)|at com.wowza.wms.stream.live.LiveReceiver.a(LiveReceiver.java:2679)|at com.wowza.wms.stream.live.LiveReceiver.a(LiveReceiver.java:2755)|at com.wowza.wms.stream.live.LiveReceiver.close(LiveReceiver.java:3076)|at com.wowza.wms.stream.live.MediaStreamLive.close(MediaStreamLive.java:149)|

As mentioned here : http://www.wowza.com/forums/showthread.php?13909-RTSP-rtp-session-timeout I have changed the RTSP session time out value to 0 to never time out, I still see the exception and the stream disconnects after running for every couple of hour.

P.S : I am using WowzaStreamingEngine 4.0.3

Any insights?

Thanks,

Anupam