@Override public DocumentType createDocumentType(String qualifiedName,String publicID,String systemID){
  checkQName(qualifiedName);
  return new DocumentTypeImpl(null,qualifiedName,publicID,systemID);
}

@ Override public DocumentType createDocumentType ( String qualifiedName , String publicID , String systemID ) { checkQName ( qualifiedName ) ; return new DocumentTypeImpl ( null , qualifiedName , publicID , systemID ) ; }
introduced in dom level 2 . < p > < p / > creates an empty documenttype node .
