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From eharoldw <hwilli...@ezrez.com>
Subject ObjectMessage objects are serialized in spite of configurations
Date Wed, 12 Mar 2008 22:33:08 GMT

We want to prevent ObjectMessage serialization for performance reasons. We
are using an embedded broker with the VM protocol. We have followed the
instructions found on
http://activemq.apache.org/how-should-i-use-the-vm-transport.html.

Our configuration options include the following:
- set "copyMessageOnSend" to false on the ConnectionFactory
- set "objectMessageSerializationDefered" to true on the ConnectionFactory
- set "persistent" to false on the Broker via url configuration
- our MessageProducer specifies a delivery mode of NON_PERSISTENT.

We understand at certain times the ObjectMessage might be serialized (e.g.
if the broker runs out of RAM). Our messages are fully serializable. Again,
this is just for performance.

In spite of these settings we are still seeing the ObjectMessage being
serialized due to a call to message.copy(), as seen in the following stack
trace:

Caused by: java.lang.RuntimeException:
com.ezrez.concurrent.jms.JmsConnectionFactory$NotSerializabletextBusinessImpl.jav
a:450)  at
org.apache.activemq.command.ActiveMQObjectMessage.storeContent(ActiveMQObjectMessage.java:104)
        at
org.apache.activemq.command.ActiveMQObjectMessage.copy(ActiveMQObjectMessage.java:80)Service.java:1074)
        at
org.apache.activemq.command.ActiveMQObjectMessage.copy(ActiveMQObjectMessage.java:75)invoke(<generated>)
        at
org.apache.activemq.ActiveMQConnection$2.processMessageDispatch(ActiveMQConnection.java:1551)
        at
org.apache.activemq.command.MessageDispatch.visit(MessageDispatch.java:108)keJoinpoint(Cglib2AopProxy.java:70
0)      at
org.apache.activemq.ActiveMQConnection.onCommand(ActiveMQConnection.java:1540)
        ... 8
moreingframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)

Do you have any suggestions on how to prevent serialization?

Thanks.
Harold

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