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From: "Sergey Beryozkin (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (CXF-4799) Parameterized Classes should be
 automatically added to JAXBContext
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    [ https://issues.apache.org/jira/browse/CXF-4799?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13581240#comment-13581240 ] 

Sergey Beryozkin commented on CXF-4799:
---------------------------------------

Hi, I will, haven't had time yet for it - I'll keep you up to date
                
> Parameterized Classes should be automatically added to JAXBContext
> ------------------------------------------------------------------
>
>                 Key: CXF-4799
>                 URL: https://issues.apache.org/jira/browse/CXF-4799
>             Project: CXF
>          Issue Type: Improvement
>          Components: JAX-RS
>    Affects Versions: 2.7.2
>            Reporter: Sambit Dikshit
>            Assignee: Sergey Beryozkin
>             Fix For: 2.8.0, 2.7.4
>
>
> We are using a payload type which is a parameterized generic. For example, ServiceResponse<T>  { 
> T payload;
> public T getPayload() { 
> return T
> }
> public void setPayload(T t){
> this.payload = t;
> }
> We are using this as a payload wrapper for JAXRS services.  The payload can be any type at runtime. Unless we set the extraClass, the JAXBContext created in AbstractJAXBProvider is not picking up the actual parameter types. I was thinking of extending to add to existing jaxb context map, i could not since its a private scoped hashmap. This should be automatically handled in AbstractJAXBProvider class.  Following check can be made and added for actual type. 
> ParameterizedType paramType = (genericType instanceof ParameterizedType) ? (ParameterizedType) genericType: null;
> if (paramType.getActualTypeArguments().length > 0) {
>   // Fetch the actual type at index 0
>    actualWrapperParamType = InjectionUtils.getType(
>    paramType.getActualTypeArguments(), 0);
>    Class<?> actualWrapperClass = InjectionUtils.getActualType(actualWrapperParamType);
> 				
> This actual class type check can be done inside getJAXBContext. This will do automatic deep check and setting into JAXB context only for custom payload types. 
> Or else expose the jaxb context map to be accessible when extend AbstractJAXBprovider or JAXBElementProvider.

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