code: @Override
      public void onFinish(ISuite suite) {
          logger.entering(suite);
          if (ListenerManager.isCurrentMethodSkipped(this)) {
              logger.exiting(ListenerManager.THREAD_EXCLUSION_MSG);
              return;
          }
          LocalGridManager.shutDownHub();
          logger.exiting();
      }
docs: Closes selenium session when suite finished to run
  
  @see org.testng.ISuiteListener#onFinish(org.testng.ISuite)