What are your opinions on the future of back-end web development? Is the Java ecosystem going to wither away as more modern and better solutions are emerging and maturing?

If so, which language/framework and/or programming paradigm do you think will become the new dominant player and how soon?

Personally I would love to see Rust becoming a new standard, it’s a pleasure to write and has a rapidly growing ecosystem, I don’t think it’s far away from overtaking Java. The biggest hurdle imo is big corporations taking a pretty big risk by choosing a relatively new language that’s harder to learn compared to what has been the standard for decades.

Playing it safe means you minimize surprises and have a very large amount of people that are already experts in the language.

Taking the risk will definitely improve a lot of things given that you find enough people that know or are willing to learn Rust, but it also means that you’re trading off Java flaws with Rust flaws. That’s the case however with every big change, and Java flaws are a good enough reason to make a big change.

  • I’m not sure what you mean by unstable ecosystem. I can presume you mean it’s easy to gain tech debt since there’s such velocity in the node/JS/TS ecosystem (and I agree not all of it is good).

    I haven’t found it to be an issue. My job is a contract system engineer guiding companies in fixing tech debt, so I am very attuned to it.

    Specifically I’d say the tooling in the last year or two has gotten much better at stabilizing an environment for node/deno development in particular. Tools like fnm, projen, and esbuild mixed with installing tools per-project (using npx to run them) instead of globally for development allows flow project to project on the same machine without having conflicts of tooling versions. Combine that with Docker for deployment and something built today should last 4-5 years with little maintenance and not having to make any changes except for security patches.

    Not that there’s not hiccups. The whole CJS/ESM nightmare is still going (but near an end I feel).

    I also feel like 4-5 years without maintenance is not something you really want. In the rare case you do, then I’d say JS is likely not for you. I’m not sure what language is. C or C++ most likely. Those have been around forever, and will never go away. Modern C++ has a lot of great features to handle memory management automatically, functional programming capabilities, compile-time metaprogramming, and OS abstraction, so that’s what I’d recommend for something that needs to last forever with minimal changes. (Thinking like a COBOL replacement.) After all, that’s what node and the JavaScript engines are written in.

    My biggest issue with Java in particular is the predatory enterprise ecosystem. I spend a lot of time helping companies get away from that for cost reduction and lock-in issues.

    One more point for node: it’s hands-down the most optimized interpreted engine in the world. This can be determined simply by the size of the companies that work on it and that absolutely depend on it being it’s best for their bottom line. Google, Apple, Facebook, and Microsoft among them. Billions spent on that optimization. Just sayin.