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Posted to dev@activemq.apache.org by "Timothy Bish (Resolved) (JIRA)" <ji...@apache.org> on 2012/02/06 23:56:59 UTC
[jira] [Resolved] (AMQ-3703) Replace use of class Valve with
standard JDK ReentrantReadWriteLock in class Topic.java
[ https://issues.apache.org/jira/browse/AMQ-3703?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Timothy Bish resolved AMQ-3703.
-------------------------------
Resolution: Fixed
Fix applied in trunk.
> Replace use of class Valve with standard JDK ReentrantReadWriteLock in class Topic.java
> ---------------------------------------------------------------------------------------
>
> Key: AMQ-3703
> URL: https://issues.apache.org/jira/browse/AMQ-3703
> Project: ActiveMQ
> Issue Type: Improvement
> Components: Broker
> Affects Versions: 5.5.1
> Reporter: Timothy Bish
> Assignee: Timothy Bish
> Priority: Trivial
> Fix For: 5.6.0
>
>
> The Topic class uses an old AMQ class Valve that is essentially a pre JDK 1.5 Read / Write lock. The JDK RW lock is much more efficient than ours using only a single CAS operation in many cases when multiple readers need access to the lock as opposed to the Valve class that requires all threads to synchronize and possibly wait on a monitor.
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