queryObjectName);
Map<String, Set<String>> domainToObjectNameListMap = new TreeMap<String, Set<String>>();
ObjectNameTuple tuple = new ObjectNameTuple();
for(Iterator it=mbeanDataList.iterator(); it.hasNext();){
MBeanData mbeanData = (MBeanData)it.next();
tuple.setObjectName(mbeanData.getName());
String domain = tuple.getDomain();
String name = tuple.getName();
Set<String> objectNameList = domainToObjectNameListMap.get(domain);
if(objectNameList == null){
objectNameList = new TreeSet<String>();