/**
* {@inheritDoc}
*/
public final CounterGroup getCounterGroup(String name) {
CounterGroup cnt = (CounterGroup) getStatistic(name);
if (cnt == null) {
synchronized (this) {
cnt = (CounterGroup) getStatistic(name);
if (cnt == null) {
cnt = new CounterGroup(name, name);
addStatistic(name, cnt);
}
}
}
return cnt;