Why is Spring Boot still loading JPA and Hibernate configuration when using another active profile?

When you have multiple properties files, Spring Boot first loads the default 'application.properties', then applies the active profile's properties on top of it, overriding any conflicting values.

For example, if the mongo profile is active, the values from 'application.properties' are loaded first, followed by the values from 'application-mongo.properties', which override any matching keys.

Based on this, any JPA and Hibernate values defined in 'application.properties' will apply across all profiles, unless you explicitly override them in a profile-specific properties file.