public void setParentStreamIdSet(final EntityIdSet<Stream> parentStreamIdSet) {
        this.parentStreamIdSet = parentStreamIdSet;
    }
You must use setFeeds() instead this is here for compatibility with
previous versions.
stroom-legacy/stroom-legacy-model_6_1/src/main/java/stroom/legacy/model_6_1/OldFindStreamCriteria.java