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From "Bob DeRemer (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-2622) ObjectMessage is [still] being serialized and de-serialized when using setObjectMessageSerializationDefered and setCopyMessageOnSend in local vm:// scenario
Date Mon, 22 Feb 2010 16:22:40 GMT
ObjectMessage is [still] being serialized and de-serialized when using setObjectMessageSerializationDefered
and setCopyMessageOnSend in local vm:// scenario
------------------------------------------------------------------------------------------------------------------------------------------------------------

                 Key: AMQ-2622
                 URL: https://issues.apache.org/activemq/browse/AMQ-2622
             Project: ActiveMQ
          Issue Type: Bug
    Affects Versions: 5.3.0
         Environment: Windows Server 2008 R2, 64-bit, binary download of ActiveMQ 5.3.0, Java
1.6.0_17 (64-bit), Eclipse 3.5 (64-bit), tomcat 6.0 (64-bit)
            Reporter: Bob DeRemer


I have outlined the problem in the following forum link: 

http://old.nabble.com/URGENT-QUESTION:-AMQ-5.3.0-bug-or-configuration-error------ObjectMessage-is--still--being-serialized-when-using-setObjectMessageSerializationDefered-and-setCopyMessageOnSend-td27654579.html

I have not created a JUnit test that demonstrates this, but here are the basic steps to reproduce
this:
* create your own custom java object that implements Externalizable - this is important, because
you will be able to set a breakpoint in the readExternal and writeExternal methods to see
the 2 locations on the AMQ code where the message is copied - causing a serialization/de-serialization
* create the ActiveMQConnectionFactory and set the setObjectMessageSerializationDefered =
TRUE and setCopyMessageOnSend = FALSE
* create your connection from the factory
* create a producer and [MessageListener] consumer against a Queue
* create a new ObjectMessage and send it from the producer to the consumer

The message will get serialized in ActiveMQConnection.java on this line [msg = msg.copy();]
- see the linked forum issue for the code snippet and line numbers. 

NOTE: you will need to continue stepping the code through the complete dispatch process because
it will go through a de-serialization phase as well when the call to getObject is called in
the onMessage of the MessageListener.

Please let me know if I can provide any more details - OR, if I'm not setting something properly
to keep the ObjectMessage from being serialized.

Thanks,
Bob

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