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From "Raul Kripalani (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMQ-3817) Marshalled properties don't get updated if modified during preProcessDispatch (TraceBrokerPathPlugin looks broken)
Date Mon, 23 Apr 2012 21:32:33 GMT
Raul Kripalani created AMQ-3817:
-----------------------------------

             Summary: Marshalled properties don't get updated if modified during preProcessDispatch
(TraceBrokerPathPlugin looks broken)
                 Key: AMQ-3817
                 URL: https://issues.apache.org/jira/browse/AMQ-3817
             Project: ActiveMQ
          Issue Type: Bug
            Reporter: Raul Kripalani


Enabling the TraceBrokerPathPlugin with a custom property name = 'JMSXTrace' sends outdated
information to the consumer. When inspecting the property at the consumer code, it has not
been updated with the complete broker path. Only the first broker, where the message was produced
into, appears. No matter how many brokers are in the route (tested with 4).

Having dug into the code, it looks like marshalledProperties in Message were already set but
not dirtied when setProperty was called again from the TraceBrokerPathPlugin. Also, Message.beforeMarshall()
assumes that since marshalledProperties is already set, it doesn't need updating. Therefore,
the message is dispatched to the consumer with an old version of the properties.

I think Message.setProperty() should check whether marshalledProperties already has a value.
If it does, it should re-marshall (i.e. dirty the cache).

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