#JavaEvolved

☕ Record patterns (destructuring) Destructure records directly in patterns — extract fields in one step. Manual Access → Destructuring (JDK 21+) 🔗 #Java #JavaEvolved

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

☕ HexFormat Convert between hex strings and byte arrays with HexFormat. Manual Hex Conversion → HexFormat (JDK 17+) 🔗 #Java #JavaEvolved

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

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

☕ Module import declarations Import all exported packages of a module with a single declaration. Many Imports → import module (JDK 25+) 🔗 #Java #JavaEvolved

☕ JDBC ResultSet Mapping vs JPA Criteria API Replace manual JDBC ResultSet mapping with JPA's type-safe Criteria API for dynamic que… JDBC ResultSet → JPA Criteria API (JDK 11+) 🔗 #Java #JavaEvolved

☕ Pattern matching in switch Replace if-else instanceof chains with clean switch type patterns. if-else Chain → Type Patterns (JDK 21+) 🔗 #Java #JavaEvolved

☕ Modern HTTP client Use the built-in HttpClient for clean, modern HTTP requests. HttpURLConnection → HttpClient (JDK 11+) 🔗 #Java #JavaEvolved

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

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

☕ java.time API basics Use immutable, clear date/time types instead of Date and Calendar. Date + Calendar → java.time.* (JDK 8+) 🔗 #Java #JavaEvolved

☕ Instant with nanosecond precision Get timestamps with microsecond or nanosecond precision. Milliseconds → Nanoseconds (JDK 9+) 🔗 #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+) 🔗 #Java #JavaEvolved

Want to see how Java evolved, feature by feature? ☕️ @brunoborges built an amazing site that shows Java language changes side by side—perfect for students and devs modernizing legacy apps. Check it out: 🔗 #Java #SoftwareEngineering #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+) 🔗 #Java #JavaEvolved

☕ Multi-file source launcher Launch multi-file programs without an explicit compile step. Compile All First → Source Launcher (JDK 22+) 🔗 #Java #JavaEvolved

☕ JFR for profiling Profile any Java app with the built-in Flight Recorder — no external tools. External Profiler → Java Flight Recorder (JDK 9+) 🔗 #Java #JavaEvolved