OAuth2 Login with JWT and Refresh Tokens in Spring Boot — The Setup You'll Rebuild Every Time
Most Spring Boot applications eventually need authentication. And many teams rebuild the same foundation every time. Add a login endpoint. Generate a …
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Stop Hiding SQL Behind Your ORM: jOOQ, JPA, and JDBC Under Production Load
Most persistence debates in Java are framed incorrectly. The question is not: Should we use JPA, jOOQ, or JDBC? The real question is: Is this part of …
Deep Dive into the Spring IoC Container: Unmasking BeanFactory and ApplicationContext
Why Every Spring Boot Developer Must Understand the IoC Container In the modern era of software development, abstracting away complexity has never bee…
What is the Purpose of the @Autowired Annotation in Spring Boot?
Learn what the @Autowired annotation in Spring Boot is, how dependency injection works, practical examples, best practices, and common mistakes to avo…
«Весомый» рефакторинг, или как мы перестали беспокоиться и полюбили работу с весами
Представьте, что вы работаете над кодом магазина, который живёт уже много лет. Бизнес доволен, продажи растут, но есть одна проблема — модуль обращени…
All You Need Is Lambdas: Java Tests Without a Mocking Framework
Most Java developers have written something like this. Maybe recently. @Test void should_categorize_new_transactions () { final var mockRepository = M…
When Would You NOT Use Microservices?
Learn when NOT to use microservices in Java programming. Discover pitfalls, examples, and best practices to build smarter, simpler systems. 🚀 Introduc…