Why the below exception is occuring when I am running EMA 100 snap shot example Exception in thre...

...ad "pool-2-thread-1" java.lang.NullPointerException

Why the below exception is occuring when I am running EMA 100 snap shot example

Exception in thread "pool-2-thread-1" java.lang.NullPointerException
at com.thomsonreuters.ema.access.OmmBaseImpl.rsslReactorDispatchLoop(OmmBaseImpl.java:986)
at com.thomsonreuters.ema.access.OmmBaseImpl.run(OmmBaseImpl.java:1131)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

To our surprise the response data is unaffected.

Please suggest us