* this method should cause a call to {@link #notifyStarted()}, either during this method's run,
   * or after it has returned. If startup fails, the invocation should cause a call to {@link
   * #notifyFailed(Throwable)} instead.
   *
   * <p>This method should return promptly; prefer to do work on a different thread where it is
   * convenient. It is invoked exactly once on service startup, even when {@link #startAsync} is

          toReturn = new FutureAsCancellable(immediateCancelledFuture());
        } finally {
          lock.unlock();
        }
        // Call notifyFailed outside the lock to avoid lock ordering issues.
        if (scheduleFailure != null) {
          service.notifyFailed(scheduleFailure);
        }
        return toReturn;
      }

      @GuardedBy("lock")
      /*

                try {
                  startUp();
                  notifyStarted();
                } catch (Throwable t) {
                  restoreInterruptIfIsInterruptedException(t);
                  notifyFailed(t);
                }
              });
    }

    @Override
    protected final void doStop() {
      renamingDecorator(executor(), threadNameSupplier)
          .execute(
              () -> {

                      }
                      notifyFailed(t);
                      return;
                    }
                  }

                  shutDown();
                  notifyStopped();
                } catch (Throwable t) {
                  restoreInterruptIfIsInterruptedException(t);
                  notifyFailed(t);
                }
              });
        }

    @Override
    protected void doStart() {
      notifyFailed(new IllegalStateException("start failure"));
    }
  }

  private static class FailRunService extends NoOpService {
    @Override
    protected void doStart() {
      super.doStart();
      notifyFailed(new IllegalStateException("run failure"));
    }
  }

    @Override
    protected void doStart() {
      notifyFailed(new IllegalStateException("start failure"));
    }
  }

  private static class FailRunService extends NoOpService {
    @Override
    protected void doStart() {
      super.doStart();
      notifyFailed(new IllegalStateException("run failure"));
    }
  }

     * its state history.
     */
    RecordingListener unused = RecordingListener.record(service);
    service.startAsync();
    service.notifyFailed(new Exception("1"));
    service.notifyFailed(new Exception("2"));
    assertThat(service.failureCause()).hasMessageThat().isEqualTo("1");
    IllegalStateException e = assertThrows(IllegalStateException.class, service::awaitRunning);

     * its state history.
     */
    RecordingListener unused = RecordingListener.record(service);
    service.startAsync();
    service.notifyFailed(new Exception("1"));
    service.notifyFailed(new Exception("2"));
    assertThat(service.failureCause()).hasMessageThat().isEqualTo("1");
    IllegalStateException e = assertThrows(IllegalStateException.class, service::awaitRunning);