@Transient
    public String getLastPollAge() {
        if (lastPollMs != null) {
            final long ageMs = System.currentTimeMillis() - lastPollMs;
            if (ageMs > 0) {
                return ModelStringUtil.formatDurationString(ageMs);
            } else {
                return "0";
            }
        }
        return null;
    }
For UI use only to see current progress. Not used to influence task
creation.
stroom-legacy/stroom-legacy-model_6_1/src/main/java/stroom/legacy/model_6_1/StreamProcessorFilterTracker.java