Issue with durable subscriptions

Hi,
We are facing a major problem with soapui when using with jms transport. As SoapUI only supports durable subscriptions the broker is maintaining durableSubscriptionName even after the request is successfully served.It is observed that it is maintained after couple of months which is causing a major problem. Can any one suggest a way to remove these durableSubscriptionName i.e unsubscribe without changing the java sources of soapui or suggest a way to create non durable subscriptions. This is very urgent and a major client is planning to use soapui if it is resolved.

Thanks,
Narasimharao