code: public static String loadAndGet (String loaderPath, String key)
      {
          try {
              Properties props = ConfigUtil.loadProperties(loaderPath);
              return props.getProperty(key);
          } catch (IOException ioe) {
              return null;
          }
      }
docs: Like {@link #loadAndGet(File,String)} but obtains the properties data via the classloader.
  
  @return the value of the key in question or null if no such key exists or an error occurred
  loading the properties file.