Interesting: the https://github.com/xerial/sqlite-jdbc/releases/tag/3.43.0.0 has removed support for Statement getGeneratedKeys. I found some migration notes https://github.com/xerial/sqlite-jdbc/issues/963.
As the next.jdbc docs say "Note: not all databases support calling .getGeneratedKeys here" 🙂
Ha! Thanks @seancorfield! I am currently migrating cljdoc from clojure/java.jdbc to next.jdbc and noticed that helpful note.