stopwatch.start();
    assertSame(stopwatch, stopwatch.stop());
    assertFalse(stopwatch.isRunning());
  }

  public void testStop_new() {
    try {
      stopwatch.stop();
      fail();
    } catch (IllegalStateException expected) {
    }
    assertFalse(stopwatch.isRunning());
  }

  public void testStop_alreadyStopped() {
    stopwatch.start();
    stopwatch.stop();
    try {
      stopwatch.stop();

    stopwatch.start();
    assertSame(stopwatch, stopwatch.stop());
    assertFalse(stopwatch.isRunning());
  }

  public void testStop_new() {
    try {
      stopwatch.stop();
      fail();
    } catch (IllegalStateException expected) {
    }
    assertFalse(stopwatch.isRunning());
  }

  public void testStop_alreadyStopped() {
    stopwatch.start();
    stopwatch.stop();
    try {
      stopwatch.stop();

  }

  /**
   * This covers a bug where if a listener was installed that would stop the manager if any service
   * fails and something failed during startup before service.start was called on all the services,
   * then awaitStopped would deadlock due to an IllegalStateException that was thrown when trying to
   * stop the timer(!).
   */
  public void testFailStart_stopOthers() throws TimeoutException {

                    result = true;
                    // don't stop processing in case a future segment explicitly excludes this repo
                }
                // check for external:http:*
                else if (EXTERNAL_HTTP_WILDCARD.equals(repo) && isExternalHttpRepo(originalRepository)) {
                    result = true;
                    // don't stop processing in case a future segment explicitly excludes this repo

        assertTrue(expiredCount > 0);
        assertEquals(1, TimeoutManager.getInstance().getTimeoutTaskCount());
        TimeoutManager.getInstance().stop();
        assertNull(TimeoutManager.getInstance().thread);
        Thread.sleep(10);
        int count = expiredCount;
        task.stop();
        TimeoutManager.getInstance().start();
        assertNotNull(TimeoutManager.getInstance().thread);
        Thread.sleep(2000);

        return asJson(new ApiResponse().status(Status.OK).result());
    }

    // POST /api/admin/scheduler/{id}/stop
    @Execute(urlPattern = "{}/@word")
    public JsonResponse<ApiResult> post$stop(final String id) {
        scheduledJobService.getScheduledJob(id).ifPresent(entity -> {
            try {
                entity.stop();
            } catch (final Exception e) {
                logger.warn("Failed to process a request.", e);

    /**
     * 止まっているかどうか返します。
     *
     * @return 止まっているかどうか
     */
    public boolean isStopped() {
        return status == STOPPED;
    }

    /**
     * タイマーをとめます。
     */
    public void stop() {
        if (status != ACTIVE) {
            throw new ClIllegalStateException(String.valueOf(status));
        }
        status = STOPPED;
    }

    /**
     * タイマーを再開始します。
     */

 * loader. That way, this class doesn't prevent the main class loader from getting garbage
 * collected, and this class can detect when the main class loader has been garbage collected and
 * stop itself.
 */
// no @ElementTypesAreNonNullByDefault for the reasons discussed above
public class Finalizer implements Runnable {

  private static final Logger logger = Logger.getLogger(Finalizer.class.getName());

    // stop it.
    blockingCallable.waitForStart();

    // Give the second task a chance to (incorrectly) start up while the first task is running.
    assertThat(future2.isDone()).isFalse();

    // Stop the first task. The second task should then run.
    blockingCallable.stop();
    executor.shutdown();

    // stop it.
    blockingCallable.waitForStart();

    // Give the second task a chance to (incorrectly) start up while the first task is running.
    assertThat(future2.isDone()).isFalse();

    // Stop the first task. The second task should then run.
    blockingCallable.stop();
    executor.shutdown();