I liked the predictability of Java code; no nasty surprises like in Scala, no changing API like in Python, no incoherent addons like C++. You just learned how to express some things and then you could focus on algorithm/problem itself uninterrupted. With Scala or C++ I have to fight with some weird definitions here and there, dig deep into compiler to understand why some error is happening, waste a lot of time on things that should be trivial but aren't. Now I am worried that Java is going to become the same with the newer additions.