Comment by nitwit005
8 hours ago
A long enough list of small changes eventually equates to a big change. People generally can't update applications from Java 8 or below to a new one without code updates.
8 hours ago
A long enough list of small changes eventually equates to a big change. People generally can't update applications from Java 8 or below to a new one without code updates.
Mostly an automatic updater call (for javax->jakarta) and a few dependency bumps away in the majority of cases.
Plain vanilla java code is really backwards compatible, on both a syntax, and on a binary level.
You can often find decades old jars on some random university site, working with JDK 25 with no issue.
If hadoop did it, so can you. I'm talking about a project that stretched Java 8 to, and arguably beyond, its intended operational boundaries. Unlikely that you’re leaning on this boundary. It's Spring Boot upgrades that will be giving you troubles.
They clearly did have Java version issues, as the different Hadoop versions list ranges of JDKs they're compatible with.