Top Architect
Feb 7, 2023 · Fundamentals
Understanding Java Heavyweight Locks: ObjectMonitor vs AQS
This article explains the differences and similarities between Java's ObjectMonitor and the AbstractQueuedSynchronizer (AQS) implementations of heavyweight locks, covering their internal data structures, waiting queues, lock acquisition order, and how synchronized interacts with wait/notify mechanisms.
AQSConcurrencyJVM
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