Class Summary

DoubleEnumeration<T> This is a helper class that combines two Enumerations.
EmptyEnumeration<T> This is a helper class that produces an empty Enumerations.
LRUCache<K,V> A least recently used cache, based on LinkedHashMap.
WeakIdentityHashMap A weak hash map has only weak references to the key.
ZoneInfo This class represents more advanced variant of java.util.SimpleTimeZone.