Re: [xml-dev] Best way to create an XML document

["Mukul Gandhi" <gandhi.mukul@gmail.com>]

Hi Andrew,

On Sat, Apr 12, 2008 at 2:19 PM, Andrew Welch <andrew.j.welch@gmail.com> wrote:
>  Create an empty SAXTransformerFactory get the TransformerHandler and
>  then just call the event methods on that... (using Xalan or Saxon
>  rather than Xerces)

I was trying this approach with Xalan-J 2.7.1, and was facing some
problem. Below is my attempt to create an XML document from scratch
using this approach.

import org.apache.xalan.processor.TransformerFactoryImpl;
import javax.xml.transform.sax.TransformerHandler;

public class MyXMLWriter {

  public static void main(String[] args) {
      try {
        TransformerFactoryImpl tfi = new TransformerFactoryImpl();
        TransformerHandler tHandler = tfi.newTransformerHandler();
        tHandler.startDocument();
        tHandler.endDocument();
      }
      catch(Exception ex) {
	ex.printStackTrace();
      }
  }

}

When I run this program, I get the following error:

java.lang.NullPointerException
        at org.apache.xalan.transformer.TransformerIdentityImpl.createResultCon
entHandler(TransformerIdentityImpl.java:302)
        at org.apache.xalan.transformer.TransformerIdentityImpl.startDocument(T
ansformerIdentityImpl.java:911)
        at MyXMLWriter.main(MyXMLWriter.java:10)

Could you please help me how I can resolve this error.

-- 
Regards,
Mukul Gandhi