import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
private void updateLocatorRefCounts(MdsalUpdate mdsalUpdate) {
//decrement the refcounts from old mcast mac
//increment the refcounts for new mcast mac
private void updateLocatorRefCounts(MdsalUpdate mdsalUpdate) {
//decrement the refcounts from old mcast mac
//increment the refcounts for new mcast mac