code: public static String message(String key, Object... params) {
          return message(key, null, params);
      }
docs: Looks for a property/message in <code>activejdbc_messages</code> bundle.
  
  @param key key of the property.
  @param params list of substitution parameters for a message.
  @return message merged with parameters (if provided), or key if message not found.