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From "Michael Chen (JIRA)" <>
Subject [jira] Created: (AMQ-2929) Compressed text message received by consumer uncompressed
Date Wed, 22 Sep 2010 00:24:40 GMT
Compressed text message received by consumer uncompressed

                 Key: AMQ-2929
             Project: ActiveMQ
          Issue Type: Bug
          Components: JMS client
    Affects Versions: 5.3.2
         Environment: ActiveMQ 5.3.2 / Camel 2.2.0
            Reporter: Michael Chen

I have a queue setup to send and consume compressed text messages.  This is done via Spring
setting ActiveMQConnectionFactory.useCompression to true.  If the consumer connects to this
queue before the first message is arrives, everything works great.

If the messages are sent to this queue before the consumer connects, those early messages
will cause ZipException "unknown compression method" when consumed by the belated consumer.
Debugger shows that the ActiveMQTextMessage.content already contains the uncompressed text
(with 4 leading length bytes) when ActiveMQTextMessage.getText() is called.

If I set useCompression to false, early messages are consumed with no problems.  Please look
into this.

I notice that after ActiveMQTextMessage.getText() decompress the message, it does not set
compressed to false. Not sure if that is the cause.

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