#JavaEvolved

☕ Text blocks for multiline strings Write multiline strings naturally with triple-quote text blocks. String Concatenation → Text Blocks (JDK 15+) 🔗 #Java #JavaEvolved

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

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

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

☕ Helpful NullPointerExceptions JVM automatically tells you exactly which variable was null. Cryptic NPE → Detailed NPE (JDK 14+) 🔗 #Java #JavaEvolved

☕ Static members in inner classes Define static members in inner classes without requiring static nested… Must use static nested class → Static members in inner classes (JDK 16+) 🔗 #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

☕ ExecutorService auto-close Use try-with-resources for automatic executor shutdown. Manual Shutdown → try-with-resources (JDK 19+) 🔗 #Java #JavaEvolved

☕ Path.of() factory Use Path.of() — the modern factory method on the Path interface. Paths.get() → Path.of() (JDK 11+) 🔗 #Java #JavaEvolved

☕ String.formatted() Call formatted() on the template string itself. String.format() → formatted() (JDK 15+) 🔗 #Java #JavaEvolved

☕ Servlet versus JAX-RS Replace verbose HttpServlet boilerplate with declarative JAX-RS resource classes. HttpServlet → JAX-RS Resource (JDK 11+) 🔗 #Java #JavaEvolved

☕ Optional.ifPresentOrElse() Handle both present and empty cases of Optional in one call. if/else on Optional → ifPresentOrElse() (JDK 9+) 🔗 #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

☕ Guarded patterns with when Add conditions to pattern cases using when guards. Nested if → when Clause (JDK 21+) 🔗 #Java #JavaEvolved

☕ JPA versus Jakarta Data Declare a repository interface and let Jakarta Data generate the DAO implementation automatically. JPA EntityManager → Jakarta Data Repository (JDK 21+) 🔗 #Java #JavaEvolved

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

☕ String.repeat() Repeat a string n times without a loop. StringBuilder Loop → repeat() (JDK 11+) 🔗 #Java #JavaEvolved

☕ Map.entry() factory Create map entries with a clean factory method. SimpleEntry → Map.entry() (JDK 9+) 🔗 #Java #JavaEvolved

☕ Sealed classes for type hierarchies Restrict which classes can extend a type — enabling exhaustive switches. Open Hierarchy → sealed permits (JDK 17+) 🔗 #Java #JavaEvolved