if (null == version.getSchemaLocation()) { addAttribute(atts, W3C_XML_SCHEMA_INSTANCE_PREFIX, W3C_XML_SCHEMA_INSTANCE_ATTRIBUTE_SCHEMA_LOCATION, NAMESPACE + " " + version.getSchemaLocation());
if (null == version.getSchemaLocation()) { addAttribute(atts, W3C_XML_SCHEMA_INSTANCE_PREFIX, W3C_XML_SCHEMA_INSTANCE_ATTRIBUTE_SCHEMA_LOCATION, NAMESPACE + " " + version.getSchemaLocation());