maven properties in pom.xml converted to properties file

With maven 3.x profiles.xml is no longer supported. We had all our properties in the profiles.xml. So we changed to maven 3 and had to convert properties in profiles.xml to properties file. Here are the details about maven2.x to maven3.x migration

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.PrintWriter;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

/**
 *
 * @author tak
 *
 */
public class PropertiesFileCreator {

 public static void main(String[] args)
   throws FileNotFoundException, SAXException, IOException, ParserConfigurationException {
  DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
  DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
  Document document = documentBuilder.parse(new InputSource(new FileInputStream("mavenproject//pom.xml")));  // change this line to point to your pom.xml
  document.getDocumentElement().normalize();
  NodeList rootList = document.getChildNodes().item(0).getChildNodes();
  NodeList propertyList = null;
  for (int temp = 0; temp < rootList.getLength(); temp++) {
   Node nNode = rootList.item(temp);
   if (nNode.getNodeType() == Node.ELEMENT_NODE) {
    Element eElement = (Element) nNode;
    if (eElement.getTagName().equals("properties")) {
     propertyList = eElement.getChildNodes();
    }
   }
  }
  PrintWriter out = new PrintWriter("mavenproject//profile.properties"); // change here to the properties file
  for (int temp = 0; temp < propertyList.getLength(); temp++) {
   Node nNode = propertyList.item(temp);
   if (nNode.getNodeType() == Node.COMMENT_NODE) {
    String nodeValue = nNode.getNodeValue();
    nodeValue = nodeValue.replaceAll("(r|n|rn)+", "r#");
    System.out.println("#" + nodeValue);
    out.println("#" + nodeValue);
   }

   if (nNode.getNodeType() == Node.ELEMENT_NODE) {
    Element eElement = (Element) nNode;
    out.println(eElement.getTagName() + "=" + eElement.getTextContent());
    System.out.println(eElement.getTagName() + "=" + eElement.getTextContent());
   }
  }
  out.close();
 }

}

Questions and suggestions are always welcome!