How to use channel groups from custom implementation?

[Alan Bateman]

Gili wrote:
> :
> I think you meant "does *not* specify that it can be null". Okay, so we'd
> need to update the documentation there. Can you open a bug report for this?
>
> PS: Why does AsynchronousChannelGroup even need a reference to the provider?
> This sounds like an implementation detail...?
>
>   
An AsynchronousChannelGroup is intimately bound to its provider and the 
asynchronous channels that the provider creates. It's similar to a 
Selector being intimately bound to its provider and the selectable 
channels that the SelectorProvider creates. On a few occasions there has 
been requests for a way to create a selectable channel implementation 
and have it work with the default Selector implementation but we just 
don't have a good story for that (because it involves 
platform/implementation specific plumbing). It's the same thing with an 
AsynchronousChannelGroup. If AsynchronousChannelGroup is useful to what 
you are doing then creating it with the provider with null should be okay.

-Alan.