private static ScheduledFuture _gcFuture;

_gcFuture = ClientScheduler.getInstance().scheduleMedAtFixedRate(
           new Runnable()
           {
               public void run()
               {
                   _log.info("Running gc and Finalisation");
                   Runtime.getRuntime().gc();
                   _log.info("gc finished, running finalisation");
                   Runtime.getRuntime().runFinalization();
                   _log.info("finalisation finished");
               }
           }, (5 * 60 * 1000), (5 * 60 * 1000));