void doSubmit(final Runnable action) {
    CONTINUATION.get().submit(action);
  }
@Test
  public void testActionCalled() {
    final AtomicBoolean action = new AtomicBoolean(false);
    Continuations CONT = new Continuations();
    CONT.doSubmit(() -> {
      action.set(true);
    });
    assertTrue(action.get());
  }