// compare the true taxon and the hit taxon with same rank.
while (trueParent != null) {
if (!trueParent.isSingleton()) {
ValidationClassificationResult hit = null;
for (int i = 0; i < hitList.size(); i++) {
ValidationClassificationResult tmp = (ValidationClassificationResult) hitList.get(i);
if ((trueParent.getTaxonomy().getHierLevel()).equals(tmp.getBestClass().getTaxonomy().getHierLevel())) {
hit = tmp;
break;
}
}