public void removeStatisticField(final StatisticField statisticField) {
        if (statisticFields != null) {
            statisticFields.remove(statisticField);
            sortFieldListAndCachePositions();
        }
    }
Held in a set to prevent duplicates.
<p>
XMLTransient to force JAXB to use the setter
stroom-legacy/stroom-legacy-model_6_1/src/main/java/stroom/legacy/model_6_1/StroomStatsStoreEntityData.java