@Override
 public void run() {
   double newStockQuote = 0;
   newStockQuote = stockQuote.getQuote() + this.computeVariance(2);
   stockQuote.setQuote(newStockQuote);
   stockQuote.setTimeInMillis(System.currentTimeMillis());
   publisher.publishObjectMessage(stockQuote);
 }
 public void close() {
   publisher.close();
 }