final String level = entry.getKey();
            final List<LogNotificationEvent> levelEvents = entry.getValue();
            final String details = formatDetails(levelEvents, maxDetailsLength, maxDisplayEvents, maxMessageLength);

            final String toStrs = fessConfig.getNotificationTo();
            final String[] toAddresses;

    }

    private static class TestableLogNotificationJob extends LogNotificationJob {
        public String testFormatDetails(List<LogNotificationEvent> events) {
            return formatDetails(events, 3000, 50, 200);
        }
    }

    private static class TestFessConfig extends FessConfig.SimpleImpl {
        private static final long serialVersionUID = 1L;