Closing socket for 1.2.4.5 because of error (kafka.network.Processor)

[Arathi Maddula]

Hi,

I found this error in my kafka.out. How can I find what is causing this error? 
Kafka jar : kafka_2.10-0.8.2.2.3.2.0-2950.jar


Closing socket for /1.2.3.4 because of error (kafka.network.Processor)
java.lang.NullPointerException
        at kafka.network.Processor.run(SocketServer.scala:404)
        at java.lang.Thread.run(Thread.java:745)

Thanks,
Arathi