Baruch Sadogursky, Developer advocate at JFrog, has already expressed his opinion on the future of Scala:
I’m a little scared of what is happening with Scala now, because there is a trend away from it: for example, the TypeSafe company, which tried to make money from libraries related to Scala. Some time ago, it was announced that TypeSafe was moving away from a strong emphasis on Scala to a much more emphasis on Java, because most enterprise development in Java is where the money is. Therefore, they hired a lot of new people who are pulling up some Java interfaces that they did not have before.
We also see other libraries that have been very Scala oriented. For example, Spark, where in the new release Java APIs are pulled up to the level of Scala, and it seems that they will continue to develop no worse than the Scala API, if not even better. I would say that in the global picture we see some reversal towards Java.
And I am absolutely not surprised by this, because Scala, as an academic language, is an absolutely wonderful creation, but for an Enterprise hardcore to push code into production, it is not suitable, because it is difficult for developers who solve real business problems who need a powerful, but, at the same time, not very complex tool, which have more important things in life than understanding the Scala type system.
This is why I have never been a big Scala fan, and the trend of leaving Scala does not surprise me. Scala is definitely not going anywhere and will continue to evolve, but in a much more niche format.
