Ошибка:java.util.MissingResourceException: Can't find bundle for base name

Структура папок:

ConfigurationManager:

  public class ConfigurationManager {
   private final static ResourceBundle resourceBundle = ResourceBundle.getBundle("resources.config");
   private ConfigurationManager() { }
   public static String getProperty(String key) {
    return resourceBundle.getString(key);
  }
 }

Ошибка:

Не находит config.properties. Что неправильно?

config.properties:

 path.page.index=/index.jsp 
 path.page.login=/jsp/login.jsp
 path.page.main=/jsp/main.jsp 
 path.page.error=/jsp/error.jsp