Should use package(s) when possible in creating JAXBContext, not set of Classes
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                 Key: TUSCANY-2640
                 URL: https://issues.apache.org/jira/browse/TUSCANY-2640
             Project: Tuscany
          Issue Type: Bug
            Reporter: Scott Kurz


The JAXBContextHelper method:
   createJAXBContext(TransformationContext tContext, boolean source)
ends up calling
  JAXBContextCache.getJAXBContext(Set<Class<?>> classes)  

This latter method, though, will only use the pkg-style 
JAXBContext.newInstance() if there is only a single Class in the set... 
otherwise it will use class-style JAXBContext.newInstance().

It is only the pkg-style, however, which causes the @XmlRegistry (typically 
'ObjectFactory') to be registered in the JAXBContext (since it's not like we go 
add the registry to the list of classes passed into newInstance()).  The end 
result is that the @XmlElemDecl's in the registry are not registered, and there 
are a list of global elems with the context doesn't know about, though it could 
if we changed the context creation.

My motive for caring here is in looking to support JAXB unmarshalling by 
global-element....  I'm not sure if I could produce an error with the current 
code doing unmarshalling by declaredType, so for now I'm arguing for changing 
this for consistency's sake.


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