Types types = WSDLFactory.eINSTANCE.createTypes();
XSDSchemaExtensibilityElement xsdExtElement = WSDLFactory.eINSTANCE.createXSDSchemaExtensibilityElement();
xsdExtElement.setSchema(schema);
wsdlDef.setTypes(types);
types.addExtensibilityElement(xsdExtElement);
types.getSchemas().add(schema);
wsdlTypesSchemaMap.put(wsdlDef, schema);
wsdlDefMap.put(ctPackage, wsdlDef);
}