code: @Override
      public void configurationEvent(ConfigurationEvent event) {
          if (event.getType() == ConfigurationEvent.CM_UPDATED && event.getPid().equals(pid)) {
              processProperties();
              initializeInterceptor();
          }
  
      }
docs: /*
  (non-Javadoc)
  
  @see org.osgi.service.cm.ConfigurationListener#configurationEvent(org.osgi.service.cm.ConfigurationEvent)