code: public InputStream executeToInputStream(HttpConnection connection) throws CouchDbException {
          try {
              return execute(connection).responseAsInputStream();
          } catch (IOException ioe) {
              throw new CouchDbException("Error retrieving server response", ioe);
          }
      }
docs: <p>Execute the HttpConnection request and return the InputStream if there were no errors.</p>
  <p>The stream <b>must</b> be closed after use.</p>
  
  @param connection the request HttpConnection
  @return InputStream from the HttpConnection response
  @throws CouchDbException for HTTP error codes or if there was an IOException