code: public void addParameters(NameValuePair[] parameters) {
          log.trace("enter PostMethod.addParameters(NameValuePair[])");
  
          if (parameters == null) {
              log.warn("Attempt to addParameters(null) ignored");
          } else {
              super.clearRequestBody();
              for (int i = 0; i < parameters.length; i++) {
                  this.params.add(parameters[i]);
              }
          }
      }
docs: Adds an array of parameters to be used in the POST request body. Logs a
  warning if the parameters argument is null.
  
  @param parameters The array of parameters to add.
  
  @since 2.0