Java Document to String

This is a very simple utility function to produce an indented XML document as a String given a Document. It throws a TransformerException if anything drastic goes wrong.
import org.w3c.dom.Document;
import javax.xml.transform.*;
import javax.xml.transform.dom.DOMSource;

public static String documentToString( Document document ) throws TransformerException {
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
DOMSource source = new DOMSource(document);
StringWriter sw = new StringWriter();
StreamResult result = new StreamResult(sw);
transformer.setOutputProperty( OutputKeys.INDENT, “yes” );
transformer.transform(source, result);
return sw.toString();

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