libjboss-xnio-java - 3.8.10-1 main

XNIO is a simplified low-level I/O layer which can be used anywhere you are
using non-blocking I/O today. It frees you from the hassle of dealing with
Selectors and the lack of NIO support for multicast sockets and non-socket
I/O, while still maintaining all the capabilities present in NIO, and it opens
the door to non-obvious optimizations.
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XNIO provides a unique API for combining blocking and non-blocking operations,
even on the same channel, allowing you to take advantage of the simplicity and
low latency of blocking I/O while still gaining the thread-conservative and
throughput benefits of non-blocking I/O.