What is the closest to ConcurrentHashMap and NavigableMap in Java?

[Dicebot]

On Friday, 15 November 2013 at 17:46:41 UTC, Russel Winder wrote:
> If D programmers are being told to use locks in applications 
> code, then
> the D programming model and library are failing. Or the advice 
> is
> wrong ;-)

I don't really buy it. It is good from simplicity/safety point of 
view (just use library stuff and your code is thread-safe) but 
not performance. Back in C++ days we have almost always resorted 
to writing own concurrent data structures to abuse domain 
specifics and application architecture as much as possible and 
thus minimize actual concurrent locking frequency. And most of 
those solutions were completely unsuitable as generic ones.