a JSON to JSON integration using a local REST service result in Failed to translate XML to JSON

Summary

a basic routing integration (JSON to JSON) leveraging a local REST service (through an agent) result in Failed to translate XML to JSON

Content

Hereby my scenario that result in a faulted json response within SOAPUI - see below the error in SOAPUI on the JSON tab

1. Create an invoke connection to a REST module that resides in the database using a generic REST API Base URL option (contain all my REST modules: http://10.0.20.6:8091/ords/hr_schema tthrough an agent since the REST services resided in my database

2. Create a JSON to JSON integration leveraging this connection with a request and response mapping