Viktar Patotski ·
· Java & Spring
· 5 min read javax to jakarta: Migrate Spring Boot 2 to 3 the Safe Way
The javax to jakarta package rename is the hard part of the Spring Boot 3 upgrade. Why the one-line sed trick quietly breaks javax.sql and javax.crypto, which packages actually move, and how OpenRewrite does the whole migration for you. Tested on real apps.