b = (Infeasible) a.clone();
f.f(99);
  int foo() {	Infeasible a,b;	a = null;	try {		a = new Infeasible();		b = (Infeasible) a.clone();		}	catch (CloneNotSupportedException e) {		e.printStackTrace();		}	// a should also be initialized here	return a.hashCode();	} 