code: @Override
  	public Object getStatusProperty(String key) {
  
  		if (key.equals(AVERAGE_EXECUTION_TIME)) {
  
  			return (getAverageExecutionTime());
  
  		} else if (key.equals(MAX_QUEUE_SIZE)) {
  
  			return (getMaxQueueSize());
  
  		} else if (key.equals(EXECUTION_STATUS)) {
  
  			// TODO.
  		}
  
  		return null;
  	}
docs: ----- interface StatusInfo -----