call home throwing exception on startup

The call home logic is throwing an exception on startup around a missing configuration file. The service does come up, but the log has an ugly exception, and users cannot change the starting port.

A snippet from the log showing the offending logic is below:

2017-04-06 20:50:27,977 | ERROR | Event Dispatcher | fZeroTouchCallHomeServerProvider | 311 - org.opendaylight.netconf.callhome-provider - 1.2.0.SNAPSHOT | Problem trying to load configuration values from etc:ztp-callhome-config.cfg
org.opendaylight.netconf.callhome.mount.Configuration$ReadException: etc:ztp-callhome-config.cfg