code: private String loadStringProperty(String propertyKey) {
  		String propValue = prop.getProperty(propertyKey);
  		if (propValue != null) {
  			propValue = propValue.trim();
  		}
  		return propValue;
  	}
docs: Loads a property of the type String from the Properties object
  
  @param propertyKey
  the property name
  
  @return the value