What is NIO.2?

Part of the OpenJDK project, NIO.2 was incorporated into Java 7 as JSR 203. It adds new I/O capabilities designed to simplify application development. Key features of NIO.2 include the following:

  • A unified model for all file systems
  • File tree walk
  • Support for basic file operations like copy, delete and move
  • Symbolic links support
  • File system change notifications
  • SPI for supporting new file systems
  • Multicasting support
  • Asynchronous I/O for sockets and files

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Introducing NIO.2

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