Kevin,
I was able to start up the application with a published REST service by setting a value for the Public application root URL in the Service Console.
Caused by: java.lang.NullPointerException: null at restservices.publish.RestServiceHandler.start(RestServiceHandler.java:91)
Line 91 of RestServiceHandler.java is a check to see if the application is in sandbox mode. The logic here is to look for a specific string match in the Public application root URL. Since this value was NULL in this app's config, an error was being triggered on application startup. With a value now configured, RestServiceHandler.java can execute without error.
Thank you Imran!
After setting my public URL and deleting the userlib\javax.servlet-3.0.0.jar i was able to successfully consume the Rest Service!!