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Lambdas replaced anonymous classes for single-method implementations and made functional-style Java readable. But anonymous classes still have specific uses lambdas cannot cover. Here is where the line sits.
Read moreJPA's fetch type determines when associated data is loaded from the database. Getting it wrong in either direction — too eager or too lazy — produces either unnecessary data transfer or N+1 queries. Here is the model and the correct defaults.
Read moreSpring's dependency injection is powerful infrastructure for large applications. For smaller services, libraries, and tools, manual constructor injection with a composition root is often less code, faster to start, and easier to understand.
Read moreThe ||= idiom covers 80% of memoization cases, but the other 20% — falsy values, arguments, thread safety, invalidation — is where the real decisions live.
Read moreJava 8 to 21 is not a single jump — it's a series of LTS hops, each with specific breaking changes, dependency requirements, and validation gates. Here is the strategy that keeps the application deployable throughout.
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