Is it possible to disable logging of mock responses on a mock service deployed as a war?

I have a mock service which returns a large xml message read from a file. I used SoapUI's Deploy as War option to deploy this service as a war to wildfly 10. It looks like the request and response messages are being held in memory, causing the jvm to run out of heap space. Is there any way to stop logging those request/response messages in this situation?