Expose getter
make sure the object is doing what is supposed to do
Change scope
Fix compilation
Final fix for #1726
Fixes #1726
Fixes #1726
Update to fix issue when using ExecutorService instances inside of the BroadcasterConfig which are not based on ThreadPoolExecutor.  The BroadcasterConfig & Broadcaster program to the ExecutorService interface (allowing components like Spring's ExecutorServiceAdapter to be injected).  However, the AtmosphereFramework#info() method performed casts to ThreadPoolExecutor to print diagnostic information which was causing a ClassCastException.