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import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.ranges.DocumentRange;
import org.w3c.dom.ranges.Range;
public class Main {
public static void main(String[] argv) throws Exception {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder loader = factory.newDocumentBuilder();
Document document = loader.parse("sample.xml");
Element order = document.getDocumentElement();
DocumentRange ranges = (DocumentRange) document;
Range range = ranges.createRange();
range.setStartBefore(order.getFirstChild());
range.setEndAfter(order.getLastChild());
range.deleteContents();
range.detach();
}
}
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