How to edit data in a specific part of an XMLObject

I have and XMLObject node I find by using an XPath expression in my XMLObject root element (XMLINIDocument). It finds this XMLObject (there is only one instance) but I want to replace it with another one. How do I do this?

 

** XML DOCUMENT **

 

<XMLINI>

 &nbsp;<CONFIG>

 &nbsp;  <SERVICES>

 &nbsp; &nbsp;  <SERVICE>

 &nbsp; &nbsp; &nbsp;  <WIPKEYS>

 &nbsp; &nbsp; &nbsp; &nbsp;  I WANT TO REPLACE THIS DATA

 &nbsp; &nbsp; &nbsp;  </WIPKEYS>

.....

</XMLINI>

 

 

** CODE **

 

  // Load entire XML document

  XMLINIDocument config = XMLINIDocument.Factory.parse(editor.getText(), validateOptions);

  // Create xpath to the node we wish to replace

  String wipQueryExpression = "declare namespace xq='http://skywire.com/ccm/global';" +
 &nbsp; &nbsp;   ; &nbsp; &nbsp; &nbsp; &nbsp;   ; &nbsp; &nbsp;  "$this/xq:XMLINI/xq:CONFIG/xq:SERVICES/xq:SERVICE/xq:WIPKEYS";

 

 &nbsp;// XMLObject found through XPath.&nbsp; This is the one I want to replace with the new one.
 ; WIPKEYSDocument.WIPKEYS[] wipkeys = (WIPKEYSDocument.WIPKEYS[]) config.selectPath(wipQueryExpression);

  // Got XML data from server and loaded it into a WIPKEYSDocument and wish to replace the wipkeys above with this one

  WIPKEYSDocument keys = WIPKEYSDocument.Factory.parse(serverData, validateOptions);

  // This kind of substitution does not work

  wipkeys[0] = keys.getWIPKEYS();

 

  // Then I save it at the end

  config.save(new File("war/WEB-INF/xml/global.xml"));
 

 

Any ideas?

Thx,

Bob