java xml SchemaFactory - loading schema with imports with different namespaces

Question

I have an xsd schema with following header definition

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
            targetNamespace="vdv453ger" 
            xmlns="vdv453ger" 
            xmlns:siri="http://www.siri.org.uk/siri" 
            elementFormDefault="unqualified" 
            attributeFormDefault="unqualified" 
            version="2.3e">

This file imports another xsd file:

<xsd:import namespace="http://www.siri.org.uk/siri" 
            schemaLocation="siri-1.3/siri/siri_all-v1.2.xsd"/>

The imported xsd schema has different namespace:

<xsd:schema xmlns="http://www.siri.org.uk/siri" 
            xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
            xmlns:acsb="http://www.ifopt.org.uk/acsb" 
            xmlns:ns1="http://datex2.eu/schema/1_0/1_0" 
            targetNamespace="http://www.siri.org.uk/siri" 
            elementFormDefault="qualified" 
            attributeFormDefault="unqualified" 
            version="1.2" 
            id="siri_all">

When I try to load the schema with:

SchemaFactory sf = SchemaFactory.newInstance(W3C_XML_SCHEMA_NS_URI);
mySchema = sf.newSchema( fileUrla );

the exception is thrown:

org.xml.sax.SAXParseException: src-include.2.1: The targetNamespace of the referenced schema, currently http://www.siri.org.uk/siri, must be identical to that of the including schema, currently vdv453ger.

It complains that namespaces are different. How to fix this?

Answer 1

The error message suggests to me that there is an xsd:include element that you haven't told us about. Use xsd:import for importing a schema document for a different namespace, xsd:include for a schema document for the same namespace.