> Java has made a U-turn in adding streams and related functional features on top of a language that used to be strongly for OOP (actually defining the meaning of OOP for a generation of developers.)
So, by adding a feature which works extremely well with OO and enhances the language they have no soul? That doesn't make any sense. Javas soul is being a blue collar language. It leaves the experiments to other (JVM) languages and takes the parts which have been shown in the field to be useful for many cases.
Go on the other hand is a half-finished Java, produced for the sake of saying "We are Google, OF COURSE we have our own language".
I think what dullgiulio is getting at is when working with large, code bases and teams Java's multiple paradigms leads to more difficult code to maintain. I've been experiencing this on my current project and its completely new development.
One package is written in the "new" functional style, another is written in "old" object oriented style, other parts use classes for nothing more than name spaces to house static methods. The reality is it's already a mess.
Java is a blue collar language in the eyes of people interested in language design and to be fair, some of them recognize its merits. The majority of programmers care more about their domain in which they are working and less about the language used in that domain.
This is absolutely the biggest wart in modern Java. We now wrap all methods that can throw checked exceptions to rethrow unchecked. This works well for web services that can just retry or rollback and report an error to the client on transient exceptions, but is insufficient for many applications.
So, by adding a feature which works extremely well with OO and enhances the language they have no soul? That doesn't make any sense. Javas soul is being a blue collar language. It leaves the experiments to other (JVM) languages and takes the parts which have been shown in the field to be useful for many cases.
Go on the other hand is a half-finished Java, produced for the sake of saying "We are Google, OF COURSE we have our own language".