HI,
I've put together a Webmin module for installing and managing JasperReportsIntegration.
It can be used to get up and running easily with JasperReportsIntegration, complete with UI.
It also has a Scheduling feature as well as Report Dashboard for managing reports.
Finally, it can be used with or without APEX (if you are not using APEX there is no need to install the JasperReportsIntegration objects into your Oracle schema).
I hope it proves useful.
Github: https://github.com/DavidGhedini/jri-publisher
Docs: https://jripub.davidghedini.com