☕ Null case in switch Handle null directly as a switch case — no separate guard needed. Guard Before Switch → case null (JDK 21+) 🔗 javaevolved.dev/errors/null-… #Java #JavaEvolved

☕ JNDI Lookup vs CDI Injection Replace fragile JNDI string lookups with type-safe CDI injection for container-managed resources. JNDI Lookup → CDI @Inject (JDK 11+) 🔗 javaevolved.dev/enterprise/j… #Java #JavaEvolved

☕ TLS 1.3 by default TLS 1.3 is enabled by default — no explicit protocol configuration needed. Manual TLS Config → TLS 1.3 Default (JDK 11+) 🔗 javaevolved.dev/security/tls… #Java #JavaEvolved

☕ Manual JPA Transaction vs Declarative @Transactional Replace verbose begin/commit/rollback blocks with a single @Transactiona… Manual Transaction → @Transactional (JDK 11+) 🔗 javaevolved.dev/enterprise/m… #Java #JavaEvolved

☕ Unmodifiable collectors Collect directly to an unmodifiable list with stream.toList(). collectingAndThen → stream.toList() (JDK 16+) 🔗 javaevolved.dev/collections/… #Java #JavaEvolved

☕ Path.of() factory Use Path.of() — the modern factory method on the Path interface. Paths.get() → Path.of() (JDK 11+) 🔗 javaevolved.dev/io/path-of.h… #Java #JavaEvolved

☕ Optional.orElseThrow() without supplier Use Optional.orElseThrow() as a clearer, intent-revealing alternative to get(). get() or orElseThrow(supplier) → orElseThrow() (JDK 10+) 🔗 javaevolved.dev/errors/optio… #Java #JavaEvolved

☕ Duration and Period Calculate time differences with type-safe Duration and Period. Millisecond Math → Duration / Period (JDK 8+) 🔗 javaevolved.dev/datetime/dur… #Java #JavaEvolved

☕ String.formatted() Call formatted() on the template string itself. String.format() → formatted() (JDK 15+) 🔗 javaevolved.dev/strings/stri… #Java #JavaEvolved

☕ Stream.mapMulti() Emit zero or more elements per input without creating intermediate streams. flatMap + List → mapMulti() (JDK 16+) 🔗 javaevolved.dev/streams/stre… #Java #JavaEvolved

☕ Modern HTTP client Use the built-in HttpClient for clean, modern HTTP requests. HttpURLConnection → HttpClient (JDK 11+) 🔗 javaevolved.dev/io/http-clie… #Java #JavaEvolved

☕ Spring Framework 7 API Versioning Replace duplicated version-prefixed controllers with Spring Framework 7's native API ver… Manual URL Path Versioning → Native API Versioning (JDK 17+) 🔗 javaevolved.dev/enterprise/s… #Java #JavaEvolved

☕ CompletableFuture chaining Chain async operations without blocking, using CompletableFuture. Blocking Future.get() → CompletableFuture (JDK 8+) 🔗 javaevolved.dev/concurrency/… #Java #JavaEvolved

☕ Markdown in Javadoc comments Write Javadoc comments in Markdown instead of HTML for better readability. HTML-based Javadoc → Markdown Javadoc (JDK 23+) 🔗 javaevolved.dev/language/mar… #Java #JavaEvolved

☕ Scoped values Share data across call stacks safely without ThreadLocal pitfalls. ThreadLocal → ScopedValue (JDK 25+) 🔗 javaevolved.dev/concurrency/… #Java #JavaEvolved

☕ Map.entry() factory Create map entries with a clean factory method. SimpleEntry → Map.entry() (JDK 9+) 🔗 javaevolved.github.io/collec… #Java #JavaEvolved

☕ String.lines() for line splitting Use String.lines() to split text into a stream of lines without regex overhead. split("\\n") → lines() (JDK 11+) 🔗 javaevolved.github.io/string… #Java #JavaEvolved

☕ Stream.toList() Terminal toList() replaces the verbose collect(Collectors.toList()). Collectors.toList() → .toList() (JDK 16+) 🔗 javaevolved.github.io/stream… #Java #JavaEvolved