Kotlin Basics for Java Developers
A practical guide to Kotlin for Java developers through a production lens. Learn what Kotlin changes in team habits, not just in syntax, especially around null safety, state modeling, and coroutines.
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A practical guide to Kotlin for Java developers through a production lens. Learn what Kotlin changes in team habits, not just in syntax, especially around null safety, state modeling, and coroutines.
A production-focused guide to Java 21 Virtual Threads. Learn where they improve throughput, where they do not help, and what to validate before rolling them into a Spring Boot service.
A production-minded guide to the Java Stream API. Learn where streams clarify business rules, where imperative code is safer, and how to avoid unreadable pipelines.
A JDK upgrade is not just a version bump. It is an organizational rollout across services, tooling, and runtime assumptions.
A practical guide to IntelliJ IDEA productivity through navigation, safe refactoring, debugging flow, and team-level IDE habits rather than shortcut memorization alone.
A practical approach to finding heap growth, retention paths, and object lifetime problems in JVM services.
A practical guide to Spring Boot test slices from the perspective of test-pyramid design and execution cost. Covers when to use @WebMvcTest, @DataJpaTest, @JsonTest, @RestClientTest, and when @SpringBootTest is the better choice.
A practical guide to testing Java-based APIs with REST Assured. Focuses on contract validation, authentication flows, test data, and integration-test boundaries rather than just request examples.
JDK 25 reached GA on September 16, 2025 and serves as the reference implementation of Java 25. The real question is not how many JEPs landed, but which ones deserve production attention now.
A production-focused guide to Spring Boot REST APIs. Learn how to keep controllers thin, contracts stable, transactions honest, and operational behavior predictable as the system grows.