code: public void stopTimer() {
  		if(this.WRITE_CACHE_ENABLED) {
  			if(timerWriteCache != null) {
  				timerWriteCache.cancel();
  			}
  			if(writeTimer != null){
  				writeTimer.cancel();
  			}
  			if(timerDeleteCache != null) {
  				timerDeleteCache.cancel();
  			}
  			if(deleteTimer != null){
  				deleteTimer.cancel();
  			}
  		}
  	}
docs: stop Timer task (write cache)