I am seeing this warning when running on JBoss EAP: "HHH000402: Using Hibernate built-in connection pool (not for production use!)"

Issue

We are encountering the following warning in a client application:

14/10/17 13:20:24.783 WARN (main) [org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure:98] HHH000402: Using Hibernate built-in connection pool (not for production use!)

This appeared in the logs when we transition from EAP 5 to EAP 6.

I have read the following Hibernate document:
https://docs.jboss.org/hibernate/orm/4.2/devguide/en-US/html_single/#services-ConnectionProvider

What is missing is a description on which ConnectionProvider to use. Can you please help me select a suitable, production-safe ConnectionProvider?