Hi, NioSelectorPool is probably never used out of its default default configuration as the capability is well hidden, so I had a look. I couldn't really see a difference with ab/h2load between the default (shared = true) and a pooled selector with all the extra code.
Then moving down the stack NioBlockingSelector is also an experience. "Possibly encountered sun bug 5076772 on windows JDK 1.5" might not be the most useful debug log anymore. Any opinion on that ? Rémy