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"Java has a great ecosystem. It’s well thought out and I can compile and run 10 year old projects no problem."

We just had to workaround breaking changes in a patch version update of Spring Boot. Maybe it was true in 2005, but certainly not the case today. I know of products that are stuck in Java 1.8 and not because they are too lazy to upgrade.

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cess11 7 days ago | parent [-]

I've been involved in bringing real old Java 1.4 and 6 and whatnot up to 17 and from classic app servers into cloud, can take a bit of work but it's pretty straightforward, mostly switching out deprecated methods to their successors and copying over boilerplate config from similar applications.

	▲	mleo 7 days ago \| parent [-]
		Depends on the frameworks in use. I have done the same as you in bringing code that was originally started on 1.4 up to 17 and now 21 and it just took grunt work, but not too crazy since most of it was bog standard Java. However, some other projects around here using different application frameworks are stuck since the frameworks aren’t maintained or upgraded in ways that aren’t compatible anymore. Looking into old Java code, it is hard to remember a time before enums and what a pain that is to deal with int constants instead of typed constants.