String name = "xml/xerces-bug.xsd";
URL xsdUrl = Thread.currentThread().getContextClassLoader().getResource(name);
MultiClassSchemaResolver resolver = new MultiClassSchemaResolver();
resolver.setBaseURI(xsdUrl.toString());
XSImplementation impl = getXSImplementation();
XSLoader schemaLoader = impl.createXSLoader(null);
setResourceResolver(schemaLoader, resolver);
setDOMErrorHandler(schemaLoader);
XSModel model = schemaLoader.loadURI(xsdUrl.toString());
XSNamedMap types = model.getComponents(XSConstants.TYPE_DEFINITION);