(Unknown Source)*/ Here's the code I am using---> HashMap documentsMap = new HashMap(); Document doc= new DocumentImpl(); Element root = doc.createElement("person"); // Create Root Element Element item = doc.createElement("name"); // Create element item.appendChild( doc.createTextNode("Jeff") ); root.appendChild( item ); // Attach another Element - doc.appendChild( root ); // Add Root to Document//add to the HashMap.... documentsMap.put("node1",doc ); try { Iterator iterator = documentsMap.entrySet().iterator(); while (iterator.hasNext() ) { Object key = iterator.next(); doc= (Document)taxonomyNodesMap.get(key); OutputFormat format = new OutputFormat( doc ); //Serialize DOM StringWriter stringOut = new StringWriter(); //Writer will be a XMLSerializer serial = new XMLSerializer( stringOut, format ); serial.asDOMSerializer(); // As a DOM Serializer serial.serialize( doc.getDocumentElement()); } }catch...... Any help will be greatly appreciated.. Regards,Peter --------------------------------- Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo. --0-68672971-1051914915=:23817 Content-Type: text/html; charset=us-ascii

Hi,

I am creating a new document and could serialize it without fail.

But if I add the created document to the HashMap. and then get the document from hashMap and try to serialize, OutputFormat throws NullPointerException,

Here's the exception message---

java.lang.NullPointerException
at org.apache.xml.serialize.OutputFormat.whichMethod(Unknown Source)
at org.apache.xml.serialize.OutputFormat.<init>(Unknown Source)*/

Here's the code I am using--->

HashMap documentsMap = new HashMap();
Document doc= new DocumentImpl();
Element root = doc.createElement("person");     // Create Root Element
Element item = doc.createElement("name");       // Create element
item.appendChild( doc.createTextNode("Jeff") );
root.appendChild( item );                       // Attach another Element -   doc.appendChild( root );                        // Add Root to Document

//add to the HashMap....
documentsMap.put("node1",doc );
  try
  {
   Iterator iterator = documentsMap.entrySet().iterator();
   while (iterator.hasNext() )
   {
      Object key = iterator.next();
     doc= (Document)taxonomyNodesMap.get(key);
      OutputFormat format = new OutputFormat( doc );   //Serialize DOM
     StringWriter stringOut = new StringWriter();        //Writer will be a

     XMLSerializer    serial = new XMLSerializer( stringOut, format );
    serial.asDOMSerializer();                            // As a DOM Serializer
    serial.serialize( doc.getDocumentElement());
   }
  }catch......

Any help will be greatly appreciated..

Regards,

Peter

Do you Yahoo!?
The New Yahoo! Search - Faster. Easier. Bingo. --0-68672971-1051914915=:23817--