| AuthCheckThread | 
 This thread periodically calls the cleanup method in all connected repository connectors. 
 | 
| AuthRequest | 
 This class describes a authorization request. 
 | 
| IdleCleanupThread | 
 This thread periodically calls the cleanup method in all connected repository connectors. 
 | 
| MappingRequest | 
 This class describes a user mapping request. 
 | 
| MappingThread | 
 This thread performs actual user mapping operations. 
 | 
| RequestQueue | 
 This class describes a authorization request queue, which has a "stuffer" servlet and many "reader" threads. 
 |