Corporate wants people to port their COBOL code into Java 8.

Most of them have decided on a tech tech a decade ago and they're not going to change anything about it unless they absolutely have to, whether that's Java or C# or Python or Ruby..

Rust is gaining traction, but mostly for new projects or big revamps, and there's a lot more shitty old code to maintain than there are opportunities to develop anything new. Besides, most companies don't need Rust (or C or C++ for that matter), JVM/.NET/NodeJS/Go is fast enough for even intense corporate workloads and doesn't require people to put in the effort to make everything perfectly sound.

I expect Rust to be inevitable in embedded development, but yeah, that space moves slow, so give it another ten years or so. I will say that embedded is practically jumping on Rust, compared to how glacially it normally moves. You've got big vendors committing to offering Rust APIs, because many of their customers just don't want to code C/C++ anymore.

Corporates are still looking for Java 1.8 Or so I've heard.