Subject: RE: ClassCastException when parsing using SchemaTypeLoader - msg#00024

Heikki, You seem to have a good understanding of the issue. The problem here is that XmlBeans tries to load the Java classes from the same classloader as the Schema types, so if you load the Schema types without a classloader, then the Java types cannot be loaded, so you get basically XmlObject with runtime type "D=topLevel".   Try replacing stl = XmlBeans.typeLoaderUnion ( new SchemaTypeLoader [ ] { XmlBeans.getBuiltinTypeSystem (  ), stl } ) ;
  with stl = XmlBeans.typeLoaderUnion( new SchemaTypeLoader [] { TopLevelElementDocumentPostFix.type.getTypeSystem(), XmlBeans.getContextTypeLoader()} ) ;   Radu From: Heikki Doeleman [mailto:hdoeleman@xxxxxxxxxxx]
Sent: Wednesday, November 15, 2006 2:49 AM
To: user@xxxxxxxxxxxxxxxxxxx
Subject: ClassCastException when parsing using SchemaTypeLoader


Hi there,

I have 2 jars generated with scomp. In one of them, all the class names are postfixed to avoid clashing with class names from the other one (because their respective schemas have the same names for top level elements, and no namespace).

Now, trying to parse in the usual way leads to a ClassCastException, as is described in earlier threads in this newsgroup :

TopLevelElementDocumentPostFix toplevel = TopLevelElementDocumentPostFix .Factory.parse ( xml );


OK, so to avoid this exception I tried using a SchemaTypeLoader telling it which jar to use, as follows :

           File[ ] schemaPath = { new File ( "the-path-to-the-jar/xmltypes-postfixed.jar" ) } ;
           
            SchemaTypeLoader stl = XmlBeans.typeLoaderForResource ( XmlBeans.resourceLoaderForPath ( schemaPath ) ) ;
            stl = XmlBeans.typeLoaderUnion ( new SchemaTypeLoader [ ] { XmlBeans.getBuiltinTypeSystem (  ), stl } ) ;

            System.out.println ( TopLevelElementDocumentPostFix.type.toString ( ) ) ;
            TopLevelElementDocumentPostFix toplevel = ( TopLevelElementDocumentPostFix )stl.parse ( xml , TopLevelElementDocumentPostFix.type , null ) ;

This last line gives a ClassCastException.
The output from the System.out is the string "D=topLevel" (i.e. the name of the top level element in my xml document).

Does anyone  see what I am doing wrong ?

thank you very much,
Heikki Doeleman

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