It's not valid Java for e.g. Lists, Maps, Strings or any programmer-defined classes.

Same with operator overloading.

myVectorA + myVectorB is not valid Java, but it is valid OOP in e.g. Python or C++. And this kind of syntactic sugar reduces verbosity enourmously, while still being OOP.

If you have ever worked in e.g. Python, Groovie or Kotlin you notice quickly how non-verbose OOP can be.

It seriously is just Java.

And Javas insistance on having you wrap non-OOP things in fake OOP constructs (e.g. static methods, which are just functions in modules, but you have to uselessly abuse classes as modules) isn't helping either.