docs: public HttpResponse doHttpCall(final String urlString,
  			final File fileToBeSent, final String userName,
  			final String userPassword, final String fileEncoding)
  			throws IOException {
  		return this.doHttpCall(urlString,
  				fileUtil.getFileContentsAsString(fileToBeSent, fileEncoding),
  				userName, userPassword, "", 0,
  				Collections.<String, String> emptyMap());
  	}