import static java.lang.System.out;
import javax.xml.parsers.*;
import javax.xml.xpath.*;
import java.io.ByteArrayInputStream;
import static java.nio.charset.StandardCharsets.UTF_8;
class Main {
public static void main(String[] args) throws Throwable {
String bsMsg = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?> <ServiceResponse RequestType=\"TEST\" CardAcceptorID=\"xx\" WorkstationID=\"xxx\" RequestID=\"4190_40a4f530-299e-4cc1-87de-0787ad920f93\" OverallResult=\"Success\" xmlns=\"http://www.nrf-arts.org/IXRetail/namespace\"/> ";
var xmlParser = DocumentBuilderFactory.newInstance().newDocumentBuilder();
var payloadBytes = new ByteArrayInputStream(bsMsg.getBytes(UTF_8));
var xml = xmlParser.parse(payloadBytes);
var expression = XPathFactory.newInstance().newXPath().compile("//@RequestType");
out.println("evaluted >%s<".formatted(expression.evaluate(xml)));
}
}
