Referencing a XSD schema within jar file

Question

I have two schema files one is imported from the other. When executing the code in Eclipse schemas are found but when executing the code from jar schema files are not found

here is the code

SAXParserFactory factory = SAXParserFactory.newInstance();
        factory.setNamespaceAware(true);
        factory.setValidating(false);

        SchemaFactory schemaFactory = SchemaFactory
                .newInstance("http://www.w3.org/2001/XMLSchema");
        try {
            factory.setSchema(schemaFactory.newSchema(new Source[] {
                    new StreamSource(getClass().getResource("Liso.xsd")
                            .getFile()),
                    new StreamSource(getClass().getResource("LisoXml.xsd")
                            .getFile()) }));
                this.saxParser = factory.newSAXParser();
        } catch (SAXException se) {
            System.out.println("SCHEMA : " + se.getMessage()); // problem in the XSD itself
        }

and here is the error I get

SCHEMA : schema_reference.4: Failed to read schema document 'file:/C:/Tools/lib/LisoTools.jar!/com/xerox/liso/xml/Liso.xsd', because 1) could not find the do
cument; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>.

Thanks

Answer 1

If Liso.xsd is importing LisoXml.xsd, then it is just sufficient to define Liso.xsd to the schema factory as shown below. The api is smart enough the load the imported/included schema(s).

SchemaFactory schemaFactory = SchemaFactory.newInstance("http://www.w3.org/2001/XMLSchema")
Schema compiledSchema = schemaFactory.newSchema(getClass().getClassLoader().getResource("Liso.xsd"))

I verified this worked on both 1.5 and 1.6. On 1.6, you might hit in to this issue as well if using DOM.