code: public void setNoMatchReturnValue(String filterReturnValue) {
      if (filterReturnValue.equalsIgnoreCase("accept")) {
        noMatchReturnValue = ACCEPT;
      } else if (filterReturnValue.equalsIgnoreCase("deny")) {
        noMatchReturnValue = DENY;
      } else if (filterReturnValue.equalsIgnoreCase("neutral")) {
        noMatchReturnValue = NEUTRAL;
      } else {
        LogLog.error("invalid noMatchReturnValue: " + filterReturnValue);
      }
    }
docs: Set the value to return upon a successful match. Valid
  string values are "ACCEPT", "DENY", and "NEUTRAL".
  
  @param filterReturnValue The return value if there is no match.