code: @Override
  	public void init(FilterConfig filterConfig) throws ServletException {
  		final List<String> parameterNames = Collections.list(filterConfig.getInitParameterNames());
  		for (final String parameterName : parameterNames) {
  			customResources.put(parameterName, filterConfig.getInitParameter(parameterName));
  		}
  	}
docs: {@inheritDoc}