docs: public void afterPropertiesSet() throws Exception {
          if (httpClient == null) {
              httpClient = new DefaultHttpClient();
          }
          
          if (params != null) {
              for (Entry<String, Object> param : params.entrySet()) {
                  log.debug("Setting custom Http param on client: '" + param.getKey() + "'='" + param.getValue() + "'");
                  httpClient.getParams().setParameter(param.getKey(), param.getValue());
              }
          }
      }