Migrating from Java 8/11 to Java 25: The Refactoring Checklist (2026 Edition)
TL;DR: The Migration Blueprint Short on time? Here is the 30-second summary of the upgrade path: The Hurdle: The biggest pain point is the javax.* to jakarta.* rename (Java 17 blocker). The Tool: Do NOT manually find/replace. Use OpenRewrite scripts. The Reward: Virtual Threads (Project Loom) allow you to ditch reactive complexity (WebFlux) for simple…
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