Java String Templates: JDK 21 Preview and JDK 23 Removal
Understand Java String Templates in JDK 21 and 22, their removal in JDK 23, matching preview flags, and standard String and MessageFormat alternatives.
jdk21 / openjdk / string templates↗
Java, Spring & Software Notes3
Practical notes on Java, Spring, testing, and software engineering, with working examples and source references.
Testing Spring WebClient with MockWebServer
Test JSON and HTML responses with Spring WebClient and MockWebServer. Includes runnable JUnit tests for HTTP 200, HTTP 500, and content-type errors.
springboot / test / webclient↗
Spring Boot 3 Migration: Java 17 and Jakarta Checklist
A practical Spring Boot 2.7 to 3.0 migration checklist covering Java 17, Jakarta imports, Querydsl compatibility, and virtual-thread version requirements.
springboot / springboot3 / springboot3 migration↗