| Interface | Description | 
|---|---|
| MemoizeCache<K,V> | 
 Represents a memoize cache with its essential methods 
 | 
| Class | Description | 
|---|---|
| LRUCache | 
 A cache backed by a Collections.SynchronizedMap 
 | 
| Memoize | 
 Implements memoize for Closures. 
 | 
| NullProtectionStorage | 
 A NullObject pattern implementation for ProtectionStorage
 Doesn't protect any resources. 
 | 
| UnlimitedConcurrentCache | 
 A cache backed by a ConcurrentHashMap 
 |