public Instrumenter(SootMethod m, Map<Local, Set<Unit>> map) {
		// TODO Auto-generated constructor stub
		method = m;
		ins_map = map;
	//	factory_already_created = new HashSet<String>();
		
		getUtilClasses();
		for(Map.Entry<Local, Set<Unit>> entry: ins_map.entrySet()){
			Local l = entry.getKey();
			SootClass c = Scene.v().getSootClass(l.getType().toString());
			if(createFactoryClass(c))
				modifyObjectClass(c);
		}
		
	}