How can insert automatically a DOCType in a xml file java

[anda.c...@contentspeed.ro]

Hello,

I hurt on this situation:

I have  code to create a xml file for some test cases run with TESTNG.

I need to insert in each file xml generated by Java code 

<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >

After the root element I need to insert doctype line.

       DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();

            DocumentBuilder docBuilder = docFactory.newDocumentBuilder();

            //docBuilder.setDocumentURI("http://testng.org/testng-1.0.dtd");

            //<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >

            // root elements

            Document doc = docBuilder.newDocument();

            Element rootElement = doc.createElement("company");

            doc.appendChild(rootElement);

Thanks

[anda.c...@contentspeed.ro]

I resolved.

I download the dtd file and 

  TransformerFactory transformerFactory = TransformerFactory.newInstance();

            Transformer transformer1 = transformerFactory.newTransformer();

            transformer1.setOutputProperty(OutputKeys.DOCTYPE_SYSTEM, "testng-1.0.dtd"); 

and it works.