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.