A java listener stops listening to the service bus without giving any exception

I have created a java topic listener application for a Azure Service bus topic. I am running this application on Azure Web app service with default tomcat configuration in . After running for a while it stops listening to the service without giving any exception in application logs or in the tomcat's catalina logs. The other applications in the tomcat is running fine.

Can you tell me what can be the possible reason for this?

I have implemented my listener application by using the following link's help: 

https://azure.microsoft.com/en-in/documentation/articles/service-bus-java-how-to-use-jms-api-amqp/

I am using QPID-AMPQ 1.0.

Let me know if you need any other inputs.

Thanks,

Naresh