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https://issues.apache.org/jira/browse/CAMEL-6558?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marc Carter updated CAMEL-6558:
-------------------------------

    Description: 
I noticed the map of headers is not restored to its original state when 
restoring the original message. I can't imagine this is by design...

Debugging shows the same instance of Map is being used so the "original" 
message is actually being mutated during the route execution.

{code}
exchange.getIn().getHeaders() == 
exchange.getUnitOfWork().getOriginalInMessage().getHeaders();
{code}

Looking into the code of DefaultUnitOfWork it is of note that the incoming 
message is a JMSMessage (specifically a TibjmsTextMessage)


  was:
I noticed the map of headers is not restored to its original state when 
restoring the original message. I can't imagine this is by design...

Debugging shows the same instance of Map is being used so the "original" 
message is actually being mutated during the route execution.

{code}
exchange.getIn().getHeaders() == 
exchange.getUnitOfWork().getOriginalInMessage().getHeaders();
{code}


    
> UnitOfWork.getOriginalInMessage does not restore headers
> --------------------------------------------------------
>
>                 Key: CAMEL-6558
>                 URL: https://issues.apache.org/jira/browse/CAMEL-6558
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core
>    Affects Versions: 2.11.0
>            Reporter: Marc Carter
>
> I noticed the map of headers is not restored to its original state when 
> restoring the original message. I can't imagine this is by design...
> Debugging shows the same instance of Map is being used so the "original" 
> message is actually being mutated during the route execution.
> {code}
> exchange.getIn().getHeaders() == 
> exchange.getUnitOfWork().getOriginalInMessage().getHeaders();
> {code}
> Looking into the code of DefaultUnitOfWork it is of note that the incoming 
> message is a JMSMessage (specifically a TibjmsTextMessage)

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