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By HamletDRC
via hamletdarcy.blogspot.com
Published: Sep 25 2008 / 13:22

Declarative Synchronization with Java 5's ReadWriteLock
Java 5 included some great concurrency primitives. One of which is the ReadWriteLock, implemented by ReentrantReadWriteLock. It's one object with two locks: a read lock which can be held simultaneously by multiple threads, and a write lock which is exclusive.
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