title: HOW do I call rebuildSelectors() on the NioWorkerPool in my NioServerSocketChannelFactory instance?
body: <p>I'm trying to figure out WHERE to call NioWorkerPool.rebuildSelectors() in 3.6.3.  </p>
  
  <p>After upgrading Netty from 3.5.11 to any of the 3.6.x releases, we're hitting a CPU problem as soon as we perform any communication over our Nio-based ServerSocket channelfactory.  All 200 threads in the default pool start running at about 45-55% CPU and never return - all of the stacks showing them sitting down in the select()...poll() logic.</p>
  
  <p>My problem is, I don't know when I should call this, nor where it is exposed.  The NioWorkerPool is private inside the channelfactory instance.  What is the recommended way to get access to the NioWorkerPool on my ChannelFactory - assuming this is the place to make this call.</p>
  
  <p>Thanks,
  Bob</p>