code: public boolean stopReporting() {
  
          // quit the bounce proxy heartbeat but let a possibly running request
          // finish
          if (scheduledFuture != null) {
              return scheduledFuture.cancel(false);
          }
  
          executorService.shutdown();
          executorService = null;
          return false;
      }
docs: Stops the performance reporting loop.
  
  @return <code>false</code> if the reporing task could not be cancelled
  (maybe because it has already completed normally),
  <code>true</code> otherwise