code: public static XMLBuilder2 parse(
          String xmlString, boolean enableExternalEntities, boolean isNamespaceAware)
      {
          return XMLBuilder2.parse(
              new InputSource(new StringReader(xmlString)),
              enableExternalEntities,
              isNamespaceAware);
      }
docs: Construct a builder from an existing XML document string.
  The provided XML document will be parsed and an XMLBuilder2
  object referencing the document's root element will be returned.
  
  @param xmlString
  an XML document string that will be parsed into a DOM.
  @param enableExternalEntities
  enable external entities; beware of XML External Entity (XXE) injection.
  @param isNamespaceAware
  enable or disable namespace awareness in the underlying
  {@link DocumentBuilderFactory}
  @return
  a builder node that can be used to add more nodes to the XML document.