import java.util.GregorianCalendar;
 
import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.DatatypeFactory;
import javax.xml.datatype.XMLGregorianCalendar;
 
public class Main {
    public static void main(String[] args) throws DatatypeConfigurationException {
        XMLGregorianCalendar xmlCal = DatatypeFactory.newInstance().newXMLGregorianCalendar(new GregorianCalendar());
        xmlCal.clear();
        xmlCal.setYear(2021);
        System.out.println(xmlCal);
    }
}

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