The java.util.concurrent synchronizer framework

Abstract

AbstractMost synchronizers (locks, barriers, etc.) in the J2SE 5.0 java.util.concurrent package are constructed using a small framework based on class AbstractQueuedSynchronizer. This framework provides common mechanics for atomically managing synchronization state, blocking and unblocking threads, and queuing. The paper describes the rationale, design, implementation, usage, and performance of this framework