| Ausführliche Beschreibung | This library is a natural extension of the Java Collections Framework. The
major new types are:
 * BiMap. A Map that guarantees unique values, and supports an inverse view.
 * Multiset. A Collection that may contain duplicate values like a List, yet
   has order-independent equality like a Set. Often used to represent a
   histogram.
 * Multimap. Similar to Map, but may contain duplicate keys. Has subtypes
   SetMultimap and ListMultimap providing more specific behavior.
.
There are also more than a dozen collection implementations, mostly of the
interfaces above, but not all. ReferenceMap, for example, is a ConcurrentMap
implementation which easily handles any combination of strong, soft or weak
keys with strong, soft or weak values. Static utility classes include:
 * Comparators. Natural order, compound, null-friendly, ad-hoc, ...
 * Iterators and Iterables. Element-based equality, cycle, concat, partition,
   filter with predicate, transform with function ...
 * Lists, Sets and Maps. A plethora of convenient factory methods and much
   more.
 * PrimitiveArrays: "boxing"/"unboxing" of primitive arrays
.
And there's more:
 * Immutable collections
 * Forwarding collections
 * Constrained collections
 * Implementation helpers like AbstractIterator |