Spring Boot — convention-over-configuration framework for building Spring-based Java applications
A copy-paste playbook of AI prompts for migrating Java codebases between every LTS jump: 8→11, 11→17, 17→21, and 21→25. Use them in Claude, ChatGPT, Gemini, or Cursor to automate the repetitive parts of a version upgrade.
A hands-on guide to upgrading a Java 21 codebase to Java 25 LTS — build file changes, dependency bumps, breaking changes, a prioritized checklist, and six AI prompts that automate the tedious parts.
A practical guide to the modern Java test stack — JUnit 6 as the runner, AssertJ for fluent assertions, Mockito 5 for mocking, and Testcontainers for real infrastructure. Includes runnable examples for each and AI prompts to generate and refactor tests.
Learn how to configure Java RMI and Hessian remoting in Spring Boot 2 with RmiServiceExporter, HessianServiceExporter, and their proxy factory beans. Includes server and client configuration, shared interface setup, and a comparison table.
Fix org.hibernate.query.sqm.internal.SqmUtil$NotYetImplementedException in Spring Boot JPA native queries. Covers interface projections, @SqlResultSetMapping, and JPQL constructor expressions with annotated code examples.
Compare Maven Shade Plugin fat JARs, Spring Boot executable JARs, and jpackage native installers — with full Maven configurations, build commands, a side-by-side comparison table, and pitfall guide.
Learn how to create Spring beans using static factory methods with @Bean configuration and XML. Covers third-party class registration, profile-based implementations, construction-time validation, and JUnit testing.
Prepare for your Java interview with the top 40 Spring MVC interview questions and answers covering DispatcherServlet, annotations, REST, validation, exception handling, and more — from beginner to advanced.
Learn Resilience4j as the modern Spring Boot 3 replacement for Hystrix: Circuit Breaker, Retry, Rate Limiter, and Bulkhead patterns with full application.yml configuration, annotated Java code, and Actuator monitoring.
Learn how to implement ETag cache control in Spring Boot REST APIs: ShallowEtagHeaderFilter, manual checkNotModified(), conditional PUT with If-Match, optimistic locking, and strong vs weak ETags — with curl test examples.