public GroupSet getGroups() { if( groupSet instanceof GroupSet ) return (GroupSet) groupSet; else { groupSet = new GroupSet(groupSet); return (GroupSet)groupSet; } }
public GroupSet getGroups() {  return new GroupSet(groupSet);  }
    public GroupSet getGroups()    {    	if( groupSet instanceof GroupSet )    		return (GroupSet) groupSet;    	else {    		groupSet = new GroupSet(groupSet);    		return (GroupSet)groupSet;    	}    }