code: @SuppressWarnings("unused")
  	private List<String> loadListProperty(String propertyKey) {
  		String arrayPropValue = prop.getProperty(propertyKey);
  		if (arrayPropValue != null && !arrayPropValue.isEmpty()) {
  			String [] values = arrayPropValue.trim().split(",");
  			for (int i = 0; i < values.length; i++) {
  				values[i] = values[i].trim();
  			}
  			return Arrays.asList(values);
  		} else {
  			return null;
  		}
  	}
docs: Loads a property of the type List from the Properties object
  
  @param propertyKey
  the property name
  
  @return the value