Bug#833274: ITP: jctools -- Java Concurrency Tools for the JVM

[Emmanuel Bourg <ebourg@apache.org>]

Package: wnpp
Severity: wishlist
Owner: Emmanuel Bourg <ebourg@apache.org>

* Package name    : jctools
  Version         : 1.2.1
  Upstream Author : Nitsan Wakart
* URL             : http://jctools.github.io/JCTools/
* License         : Apache-2.0
  Programming Lang: Java
  Description     : Java Concurrency Tools for the JVM

JCTools offers some concurrent data structures currently missing from the JDK:
 * SPSC/MPSC/SPMC/MPMC variations for concurrent queues:
   * SPSC - Single Producer Single Consumer (Wait Free, bounded and unbounded)
   * MPSC - Multi Producer Single Consumer (Lock less, bounded and unbounded)
   * SPMC - Single Producer Multi Consumer (Lock less, bounded)
   * MPMC - Multi Producer Multi Consumer (Lock less, bounded)
 * An expanded queue interface (MessagePassingQueue):
   * relaxedOffer/Peek/Poll: trade off conflated guarantee on full/empty queue
     state with improved performance.
   * drain/fill: batch read and write methods for increased throughput
     and reduced contention

JCTools is a new dependency of Netty (libnetty-java).
The package will be maintained by the Java Team.