And it seems this was never done either... https://github.com/uci-cbcl/genomix/blob/genomix/fullstack_genomix/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/bubblemerge/SimpleBubbleMergeVertex.java#L28

Guess I was too hasty on my LGTM?