| FifoDeliveryQueue | Simple first in / first out  Delivery Queue. | 
| IdGenerator | Generator for Globally unique Strings used to identify resources within a given Connection. | 
| IOExceptionSupport | Used to make throwing IOException instances easier. | 
| ReconnectLocationPool | Manages the list of available reconnect entries that are used to connect
 and recover a connection. | 
| StopWatch | A very simple stop watch. | 
| ThreadPoolUtils | Utility methods for working with thread pools ExecutorService. | 
| TimeUtils | Time utils. | 
| TrackableThreadFactory | Simple ThreadFactory object that tracks the last created thread if an AtomicReferenceis provided in order to hold onto the trackedThreadreference. |