code: public void loadFromYAML(final Properties props, final InputStream is) throws IOException {
  		try {
  			((PrefixedProperties) props).loadFromYAML(is);
  		} catch (final NoSuchMethodError err) {
  			throw new IOException(
  					"Cannot load properties JSON file - not using PrefixedProperties: " + err.getMessage());
  		}
  	}
docs: Loads from json.
  
  @param props
  the props
  @param is
  the is
  @throws IOException
  Signals that an I/O exception has occurred.