[news.eclipse.modeling.mdt] [UML2] how to load UML_PRIMITIVE_TYPES_LIBRA

[zhuj@xxxxxxxxx (Jinhui )]

Hello, 

another problem, I want to access the UML_Primitive_Lib, so that I can use 
the primitive types as type specification.

I tried like this:

URI primitiveTpyeLibURI = 
URI.createURI(XMI2UMLResource.UML_PRIMITIVE_TYPES_LIBRARY_URI);
Model uml2PrimitiveTypesLibrary =
 (Model)UML2Util.load(
   RESOURCE_SET,
   primitiveTpyeLibURI,
   UMLPackage.Literals.MODEL);


actually I've tried with many URIs in different classes, but none of work 
seemed to be working(i.e. load() always return null).

--XMI2UMLResource
* UML_PRIMITIVE_TYPES_LIBRARY_2_1_URI
* UML_PRIMITIVE_TYPES_LIBRARY_URI  

--UMLResource
* UML_PRIMITIVE_TYPES_LIBRARY_URI  

--UML22UMLResource
* UML2_PRIMITIVE_TYPES_LIBRARY_URI 


Any one has any idea?
best Regards.
Jinhui