import java.io.File;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;

public class MyChecker {

    public static void main(String [] args) throws Exception {

        File source = new File(args [0]) ;

        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        factory.setNamespaceAware(true) ;

        DocumentBuilder builder = factory.newDocumentBuilder();
        Document document = builder.parse(source) ;
    }
}