Yes! Things like Spring Boot are actually a reaction to the days of Java EE and the web of Java-centric technologies. This always confused me as a newer develo

Yes! Things like Spring Boot are actually a reaction to the days of Java EE and the web of Java-centric technologies. This always confused me as a newer developer. Vendors competed with each other with different JavaEE implementations (WebSphere, Glassfish etc) that all conformed to the same interface and provided everything including the kitchen sink, but what really differentiated the products were vendor-specific features that require you to go outside the interface, but if you tried to use that stuff, another senior developer would tell you that we can't marry our implementation to a specific vendor... meanwhile, literally every company you go to uniformly uses Spring and Hibernate, and both will inevitably require you to not pretend that they're dumb implementations of javax.inject and javax.persistence.