Java Companion

Nov 13, 2025 · Backend Development

When a New Developer Swapped MyBatis for MyBatis‑Plus and Got Scolded by the Team Lead

The article walks through replacing MyBatis 3.5.0 with MyBatis‑Plus 3.1.1 in a legacy Java project, uncovers version‑specific LocalDateTime conversion failures, shows how upgrading mysql‑connector‑java resolves them, and reflects on the broader impact of component upgrades on production stability.