2011/11/16

JDK 7, 8 and 9


Mark Reinhold


Java7
  • Project Coin: small language improvements
    • diamond <> operator: easier generics
    • multi-catch clause
    • ...
  • invokedynamic: bytecode opperation for dynamic languages (e.g. JRuby) and will be used for Lamba expressions in Java 8.
  • fork/join framework
Java8
  • Lambda expressions (aka Closures)
  • Jigsaw: modularity
    • improve performance:
      • only load what's needed
      • more efficient jmod package type
    • dependencies are defined in the module configuration --> better than the current classpath hell
    • jmod modules will be easily packaged into rpm or deb packages ⁻ JavaFX 3.0
  • Type annotations
  • new Date/Time library (cfr. JodaTime)
  • support for Sensors (accelerometer, etc.)
Java9 (not decided yet)
  • self-tuning JVM's
  • better JNI
  • support for Big Data
  • reified generics
  • unified types: int <> Integer etc.
  • optimize tail recursion... finally?
  • resource management / accounting?
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