Java & Spring

javax to jakarta in Spring Boot 3: What Moves, and Why javax.sql Stays

Viktar Patotski Nov 26, 2022 · 5 min read

javax to jakarta in Spring Boot 3: What Moves, and Why javax.sql Stays

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.

Spring: Inject a List of Beans Implementing an Interface

Java & Spring

Viktar Patotski Feb 23, 2021 · 6 min read

Spring: Inject a List of Beans Implementing an Interface

Inject every bean that implements an interface into one field: a List or array ordered with @Order, a Set, or a Map keyed by bean name. With code.

@RequiredArgsConstructor in Spring Boot: Lombok Constructor Injection

Java & Spring

Viktar Patotski Jan 31, 2021 · 3 min read

@RequiredArgsConstructor in Spring Boot: Lombok Constructor Injection

Constructor injection in Spring Boot with Lombok @RequiredArgsConstructor: drop @Autowired, keep fields final, no boilerplate. Setup with Maven and Gradle.