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From "Barbara De Vido (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CAMEL-10666) Serializable headers lost by JmsBinding
Date Sun, 01 Jan 2017 20:29:58 GMT
Barbara De Vido created CAMEL-10666:
---------------------------------------

             Summary: Serializable headers lost by JmsBinding
                 Key: CAMEL-10666
                 URL: https://issues.apache.org/jira/browse/CAMEL-10666
             Project: Camel
          Issue Type: Bug
          Components: camel-core, camel-jms
    Affects Versions: 2.17.0
         Environment: Red Hat Fuse 6.3.0 - Apache Camel 2.0.17-redhat-630187
            Reporter: Barbara De Vido


In Fuse 6.2.1 I was able to set a custom object in the header of my exchange and as long as
it was serializable and the container consuming the route had this JVM options set (-Dorg.apache.activemq.SERIALIZABLE_PACKAGES="*")
and the queue had for both producer and consumer the option "transferExchange=true" everything
was working fine. Now in Fuse 6.3.0 it is not working anymore.

Fuse 6.3.0 uses Apache Camel 2.0.17

To make a simple example, there is not need to have a custom object, it can be a Calendar
object.

Since I'd like to upgrade a Customer production enviroment from Fuse 6.2.1 to Fuse 6.3.0 and
could not understand what was going on, I decided to debug the code, and I noticed a big change
in the org.apache.camel.impl.DefaultExchangeHolder class (camel-core). 

It is used by the org.apache.camel.component.jms.JmsBinding#createJmsMessage(org.apache.camel.Exchange,
java.lang.Object, java.util.Map<java.lang.String,java.lang.Object>, Session, org.apache.camel.CamelContext).
Which is in camel-jms

JmsBinding methos invoke DefaultExchangeHolder.marshal(echange)
 
which is this:

public static DefaultExchangeHolder marshal(Exchange exchange) {

   return marshal(exchange, true, false); <---- THE FALSE PARAMETER AVOID THE MARSHAL OF
COMPLEX TYPE

}

 

In Fuse 6.2.1 the class is quite different and there is not any flag avoiding the serializable
headers, or at list I did not see any.

 

I know it is a problem of Apache Camel 2.0.17, I have no idea though if the code is different
in newer version.

 

This is a big change and it is not documented since if I look at the Camel page, it clearly
states that if transferExchange is true than

"You can transfer the exchange over the wire instead of just the body and headers. The following
fields are transferred: In body, Out body, Fault body, In headers, Out headers, Fault headers,
exchange properties, exchange exception. This requires that the objects are serializable.
Camel will exclude any non-serializable objects and log it at WARN level.

You must enable this option on both the producer and the consumer side, so Camel will know
that the payload is an Exchange and not a regular payload."

 

There is any workaround in order to make this whole thing work as is should work? 

 

Thank you

Barbara



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