The question is unclear. Jakarta was a sub-project of the Apache project, but a lot of jarkarta stuff has been relocated. For example, the former jakarta-tomcat is now apache-tomcat.
Jakarta itself is not part of JEE, but rather included implementations of J2EE functions.
J2EE (hence JEE) is the Sun/Oracle standard spec for Enterprise functions in Java, including web applications and their containers, native java messaging, standardized data persistence and a lot more, Spring uses that as a basis for their own projects. Spring's functions are not replacements for JEE, but rather assistance for JEE.
As for Spring POMs, that's actually Maven at work and Maven's archetype facility has been generating both Spring and non-Spring J2EE and JEE projects for years.
Sometimes the only way things ever got fixed is because people became uncomfortable.
See ya later boys, I think I'm in love. Oh wait, she's just a tiny ad: