case NEW:
            snapshot = new StateSnapshot(TERMINATED);
            enqueueTerminatedEvent(NEW);
            break;
          case STARTING:
            snapshot = new StateSnapshot(STARTING, true, null);
            enqueueStoppingEvent(STARTING);
            doCancelStart();
            break;
          case RUNNING:
            snapshot = new StateSnapshot(STOPPING);

  public void testStateOrdering() {
    // List every valid (direct) state transition.
    assertLessThan(NEW, STARTING);
    assertLessThan(NEW, TERMINATED);

    assertLessThan(STARTING, RUNNING);
    assertLessThan(STARTING, STOPPING);
    assertLessThan(STARTING, FAILED);

    assertLessThan(RUNNING, STOPPING);
    assertLessThan(RUNNING, FAILED);

    assertLessThan(STOPPING, FAILED);

    /**
     * Called when the service transitions from {@linkplain State#NEW NEW} to {@linkplain
     * State#STARTING STARTING}. This occurs when {@link Service#startAsync} is called the first
     * time.
     */
    public void starting() {}

    /**
     * Called when the service transitions from {@linkplain State#STARTING STARTING} to {@linkplain
     * State#RUNNING RUNNING}. This occurs when a service has successfully started.
     */

      }
    }

    @Override
    public synchronized void starting() {
      assertTrue(stateHistory.isEmpty());
      assertNotSame(State.NEW, service.state());
      stateHistory.add(State.STARTING);
    }

    @Override
    public synchronized void running() {
      assertEquals(State.STARTING, Iterables.getOnlyElement(stateHistory));
      stateHistory.add(State.RUNNING);

      }
    }

    @Override
    public synchronized void starting() {
      assertTrue(stateHistory.isEmpty());
      assertNotSame(State.NEW, service.state());
      stateHistory.add(State.STARTING);
    }

    @Override
    public synchronized void running() {
      assertEquals(State.STARTING, Iterables.getOnlyElement(stateHistory));
      stateHistory.add(State.RUNNING);

          case NEW:
            snapshot = new StateSnapshot(TERMINATED);
            enqueueTerminatedEvent(NEW);
            break;
          case STARTING:
            snapshot = new StateSnapshot(STARTING, true, null);
            enqueueStoppingEvent(STARTING);
            doCancelStart();
            break;
          case RUNNING:
            snapshot = new StateSnapshot(STOPPING);

    /**
     * Called when the service transitions from {@linkplain State#NEW NEW} to {@linkplain
     * State#STARTING STARTING}. This occurs when {@link Service#startAsync} is called the first
     * time.
     */
    public void starting() {}

    /**
     * Called when the service transitions from {@linkplain State#STARTING STARTING} to {@linkplain
     * State#RUNNING RUNNING}. This occurs when a service has successfully started.
     */

          @Override
          protected String serviceName() {
            return "Foo";
          }
        };
    TimeoutException e =
        assertThrows(
            TimeoutException.class,
            () -> service.startAsync().awaitRunning(1, TimeUnit.MILLISECONDS));
    assertThat(e)
        .hasMessageThat()
        .isEqualTo("Timed out waiting for Foo [STARTING] to reach the RUNNING state.");
  }

@GwtIncompatible
@ElementTypesAreNonnullByDefault
public interface FinalizableReference {
  /**
   * Invoked on a background thread after the referent has been garbage collected unless security
   * restrictions prevented starting a background thread, in which case this method is invoked when
   * new references are created.
   */
  void finalizeReferent();

  public void testStateOrdering() {
    // List every valid (direct) state transition.
    assertLessThan(NEW, STARTING);
    assertLessThan(NEW, TERMINATED);

    assertLessThan(STARTING, RUNNING);
    assertLessThan(STARTING, STOPPING);
    assertLessThan(STARTING, FAILED);

    assertLessThan(RUNNING, STOPPING);
    assertLessThan(RUNNING, FAILED);

    assertLessThan(STOPPING, FAILED);