3 public class TwoTuple<A, B> {
4 private Runnable finalize_run;
7 public TwoTuple(A a, B b) {
11 public TwoTuple(A a, B b, Runnable finalize_run) {
13 this.finalize_run = finalize_run;
16 public void finalize() throws Throwable {
17 if (finalize_run != null) finalize_run.run();