@Override
    public String toString() {
        final StringBuilder sb = new StringBuilder();
        indicatorsMap.entrySet()
                .stream()
                .flatMap(entry -> entry.getValue().values().stream())
                .forEach(indicators -> indicators.append(sb));
        return sb.toString();
    }
All indicators for the element of type errorType
stroom-pipeline/src/main/java/stroom/pipeline/errorhandler/LoggingErrorReceiver.java