[concurrency-interest] Github project for standalone CopyOnWriteArrayNavigableSet

[Mike Duigou]

As promised in my earlier messages I have created a GitHub project for 
the standalone Java 8 compatible version of 
CopyOnWriteArrayNavigableSet. Currently the source is identical to the 
Java 9 version proposed to this list.  If there is interest (or a 
volunteer) I will probably also provide a Java 7 compatible version. I 
hope to have the module published on Maven Central soonish.

https://github.com/bondolo/cowans8

Cheers,

Mike