|A suite of classes that extend or augment the Java Collections Framework.
There are certain holes left unfilled by Sun's implementations, and the
Jakarta-Commons Collections Component strives to fulfill them. Among the
features of this package are:
Special-purpose implementations of Lists and Maps for fast access Adapter
classes from Java1-style containers (arrays, enumerations) to Java 2-style
collections. Methods to test or create typical set-theory properties of
collections such as union, intersection, and closure.