Java 9 Features

• JShell - REPL (Read Evaluate Process Loop)
• Module System
• Reactive Streams
• Private Methods in Interfaces
• Try with Resources Enhancements
• Factory Methods for Immutable List, Set and Map - of()
• Stream API Enhancements - takeWhile(), dropWhile()
• Optional Class Improvements - stream()
• Process API Improvements
• CompletableFuture API Improvements
• JVM Enhancements