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https://issues.apache.org/jira/browse/CAMEL-3438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12972591#action_12972591
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xuhongbo commented on CAMEL-3438:
---------------------------------

Hi ,Clause

I don't think so.  
I aggree the camel-jaxb component should not dependency to spring

But I don't agree "manageing context classLoader" is a trivial things in osgi;

J2EE will managed the context class loader carefully. 
 But osgi doesn't. 

 the osgi specification(expect osgi-enterprise) doesn't give any rules about 
thread's context class loader;
if you check spring-dm 's reference, even spring-dm just give rules of context 
class loader for osgi-services configured by spring ; and doesn't give any 
rules for other situation;

 so the thread context  will act as  jdk default behavior, "inherit parent 
thread's context class Loader", so that's to say:

1)  thread context class loader is leaved as unmanaged in standard osgi 
environment; 
2) it dependency the thread is how created;

So camel should managed context class loader carefully, otherwise, it hardly to 
use in standard osgi . servicemix 4 is a standard osgi environment too;



> JAXBDataFormatter should using Spring ApplicationContext's classLoader 
> explicitly
> ---------------------------------------------------------------------------------
>
>                 Key: CAMEL-3438
>                 URL: https://issues.apache.org/jira/browse/CAMEL-3438
>             Project: Camel
>          Issue Type: Bug
>    Affects Versions: 2.4.0
>            Reporter: xuhongbo
>         Attachments: JaxbDataFormat.java
>
>
> JAXBDataFormatter now using JAXBContext.newInstance(path) to create 
> JAXBContext,
> but this will using Thread's context classLoader.
> this may causing un-expected class or resource not found exceptions;

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