ChannelPool
Returns true if a ChannelPool exists for the given key.
true
key
Return the ChannelPool for the code.
code
Returns true if a ChannelPool exists for the given key. Please note that null keys are not allowed.
null
Return the ChannelPool for the code. This will never return null, but create a new ChannelPool if non exists for they requested key. Please note that null keys are not allowed.