Java NIO2: Non-Blocking, Asynchronous and Zero-copy IO

Java NIO2 provides Channel API for File system based and Network/Socket based IO. 

Useful links:

AsynchronousChannel interface:  https://docs.oracle.com/javase/7/docs/api/java/nio/channels/AsynchronousChannel.html

AsynchronousChannel Implementation: https://docs.oracle.com/javase/8/docs/api/java/nio/channels/AsynchronousSocketChannel.html

NIO2 primer: https://www.ibm.com/developerworks/library/j-nio2-1/index.html

Zero-copy efficient data transfer:
https://www.ibm.com/developerworks/library/j-zerocopy/
http://xcorpion.tech/2016/09/10/It-s-all-about-buffers-zero-copy-mmap-and-Java-NIO/

AKKA IO: https://dzone.com/articles/non-blocking-io-discovering-0

NIO Examples :
https://docs.oracle.com/javase/8/docs/technotes/guides/io/example/index.html

JBOSS XNIO Zero-Copy:

https://docs.jboss.org/author/display/XNIO/Zero-Copy+Transfers?_sscc=t