Contains the classes for concurrency support.

This package provides standardized, efficient versions of utility classes commonly encountered in concurrent Java programming. This code consists of implementations of ideas that have been around for ages, and is merely intended to save you the trouble of coding them. Discussions of the rationale and applications of several of these classes can be found in the second edition of Concurrent Programming in Java. There are also pdf slides providing an overview of the package.

These classes were taken from concurrent.jar, version 1.3.4, provided by Doug Lea. Java 1.5 and later have these collections built in.