code: private String buildResultFromResponseStreams(String response, OutputStream outputStream) throws ParserConfigurationException, SAXException, XPathExpressionException, IOException {
          StringBuilder commandResult = new StringBuilder();
          int noOfStreams = WSManUtils.countStreamElements(response);
          for (int streamNo = 0; streamNo < noOfStreams; streamNo++) {
              String stream = XMLUtils.parseXml(response, String.format(RECEIVE_RESPONSE_XPATH, outputStream.getValue(), streamNo));
              if (!"DQo=".equals(stream)) {
                  commandResult.append(EncoderDecoder.decodeBase64String(stream));
              }
          }
          return commandResult.toString();
      }
docs: Constructs the executed command response from multiple streams of data containing the encoded result of the execution.
  
  @param response
  @param outputStream
  @return the decoded result of the command in a string.
  @throws ParserConfigurationException
  @throws SAXException
  @throws XPathExpressionException
  @throws IOException