How can I upgrade my below code into spring5.x from spring4.x

I am trying to Upgrade my code from Spring 4.x version to Spring 5.x version but getting error due to parseStringValue method as it is removed in Spring5. the ${propertyPath} location is present in server I am running the file.

@Configuration
@PropertySource(name="load", value={"file:${propertyPath}/property.config"})
public class PropertiesUtil extends PropertyPlaceholderConfigurer {
   private static Map propertiesMap;
 
   @Override
   protected void processProperties(ConfigurableListableBeanFactory beanFactory,
             Properties props) throws BeansException {
        super.processProperties(beanFactory, props);
 
        propertiesMap = new HashMap<String, String>();
        for (Object key : props.keySet()) {
            String keyStr = key.toString();
            propertiesMap.put(keyStr, parseStringValue(props.getProperty(keyStr),
                props, new HashSet()));
        }
    }
    public static String getProperty(String name) {
        return propertiesMap.get(name);
    }
}