Between the open-world assumption the classloader uses, and the lack of a performant, general purpose garbage collector, you can’t seriously consider deploying Java at scale without having experts on hand.

I’ve deployed things written in many languages at extremely large scale. They’ve been written in Java, C, C++, python, go, sh, perl, and other languages I’ve forgotten. Java is, by far, the least operable of those languages.

I’m an expert Java developer, along with most of those other languages (where expert is defined by me as “over 10 years experience”).

In fairness to java, it’s not my least favorite language on the list.