Java XML to string

import java.io.StringWriter;
import java.io.IOException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.FactoryConfigurationError;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
import org.apache.xml.serialize.OutputFormat;
import org.apache.xml.serialize.Serializer;
import org.apache.xml.serialize.DOMSerializer;
import org.apache.xml.serialize.SerializerFactory;
import org.apache.xml.serialize.XMLSerializer;
public class HelloApache2
{
  public static void main (String[] args)
  {
    try
    {
      DocumentBuilderFactory factory =
          DocumentBuilderFactory.newInstance();
      DocumentBuilder builder = factory.newDocumentBuilder();
      Document doc = builder.parse(args[0]);
      OutputFormat format = new OutputFormat (doc);
      StringWriter stringOut = new StringWriter ();
      XMLSerializer serial = new XMLSerializer (stringOut, 
                                                format);
      serial.serialize(doc);
      System.out.println(stringOut.toString());
    }
    catch (FactoryConfigurationError e)
    {
      System.out.println
          ("Unable to get a document builder factory: " + e);
    }
    catch (ParserConfigurationException e)
    {
      System.out.println("Parser was unable to be configured: " 
                          + e);
    }
    catch (SAXException e)
    {
      System.out.println("Parsing error: " + e);
    }
    catch (IOException e)
    {
      System.out.println("I/O error: " + e);
    }
  }
}