}
}
GroupNode lastGroupNode = myRoot;
for (int i = 0; i < myGroupingRules.length; i++) {
final UsageGroupingRule rule = myGroupingRules[i];
final UsageGroup group = rule.groupUsage(usage);
if (group != null) {
lastGroupNode = lastGroupNode.addGroup(group, i);
}
}
return lastGroupNode.addUsage(usage);