code: public Properties findProperties(String uri) throws IOException {
          String fulluri = path + uri;
  
          URL resource = getResource(fulluri);
          if (resource == null) {
              throw new IOException("Could not find resource: " + fulluri);
          }
  
          return loadProperties(resource);
      }
docs: Finds the corresponding resource and reads it in as a properties file
  <p/>
  Example classpath:
  <p/>
  META-INF/widget.properties
  <p/>
  ResourceFinder finder = new ResourceFinder("META-INF/");
  Properties widgetProps = finder.findProperties("widget.properties");
  
  @param uri
  @return
  @throws IOException if the URL cannot be read or is not in properties file format