public   static   Document   parse(org.w3c.dom.Document   doc)   throws   Exception   {

          if   (doc   ==   null)   {

              return   (null);

          }

          org.dom4j.io.DOMReader   xmlReader   =   new   org.dom4j.io.DOMReader();

          return   (xmlReader.read(doc));

      } 

      public   static   org.w3c.dom.Document   parse(Document   doc)   throws   Exception   {

          if   (doc   ==   null)   {

              return   (null);

          }

          java.io.StringReader   reader   =   new   java.io.StringReader(doc.asXML());

          org.xml.sax.InputSource   source   =   new   org.xml.sax.InputSource(reader);

          javax.xml.parsers.DocumentBuilderFactory   documentBuilderFactory   =

                  javax.xml.parsers.DocumentBuilderFactory.newInstance();

          javax.xml.parsers.DocumentBuilder   documentBuilder   =   documentBuilderFactory.

                  newDocumentBuilder();

          return   (documentBuilder.parse(source));

      }