Spring boot still requires gradle, which is much more complex than naive use of npm or python pip.
In the long run java build tools are better, but due to the learning curve a lot of folks balk (leave) and use a different stack.
Whoever is in charge of openJDK should just adopt kotlin as java 14 even if it was Not Invented Here.
Re:IT Runs on Java 8
by jacques_chester on Friday May 10, 2019 @09:12PM
(#19883806)
Spring Boot works with both Gradle and Maven.
That's pretty much the original value proposition for Spring Boot. "I just want to get to work".
I used Spring Boot before encountering a Spring 3 project. The difference is phenomenal.
Disclosure: I work for Pivotal, which sponsors Spring.