ActiveMQMessageConsumer dispatches messages while holding mutex
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Key: AMQ-3641
URL: https://issues.apache.org/jira/browse/AMQ-3641
Project: ActiveMQ
Issue Type: Bug
Components: JMS client
Affects Versions: 5.5.1
Environment: CentOS 5, Sun Java 1.6 64-bit, server mode
Reporter: Tin Tvrtković
I'm using async message dispatch.
I've noticed the ActiveMQMessageConsumer class dispatches messages to its
listeners while holding a mutex (method name: dispatch(MessageDispatch md),
mutex name unconsumedMessages). This mutex needs to be grabbed in other
situations as well (like closing the connection), which can lead to deadlocks.
Is this really the best way of handling this?
I realize I can get around this problem in a number of ways, but this issue
seems to be pretty deep in the client infrastructure, especially if another JMS
framework is being used (like Spring JMS).
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