@Override
  public final void addListener(Listener listener, Executor executor) {
    listeners.addListener(listener, executor);
  }

  @Override
  public String toString() {
    return getClass().getSimpleName() + " [" + state() + "]";
  }

  /**
   * Attempts to execute all the listeners in {@link #listeners} while not holding the {@link
   * #monitor}.
   */
  private void dispatchListenerEvents() {

  private static <T> T expectArgument(Class<T> type, Object arg) {
    try {
      return type.cast(arg);
    } catch (ClassCastException e) {
      throw new IllegalArgumentException(arg + " is not a " + type.getSimpleName());
    }
  }

  /** A TypeTable maintains mapping from {@link TypeVariable} to types. */
  private static class TypeTable {
    private final ImmutableMap<TypeVariableKey, Type> map;

    TypeTable() {

    /**
     * Initializes the SamlAuthenticator.
     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initializing {}", this.getClass().getSimpleName());
        }
        ComponentUtil.getSsoManager().register(this);

        // Default SAML settings
        // NOTE: Many security settings are set to false by default for compatibility.

    /**
     * Initializes the SearchLogHelper.
     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initializing {}", this.getClass().getSimpleName());
        }
        userInfoCache = CacheBuilder.newBuilder()//
                .maximumSize(userInfoCacheSize)//
                .expireAfterWrite(userCheckInterval, TimeUnit.MILLISECONDS)//

    void assertPermitted(Exception exception) {
      if (!isPermitted(exception)) {
        String message =
            "Exception "
                + exception.getClass().getSimpleName()
                + " was thrown; expected "
                + getMessage();
        throw new AssertionError(message, exception);
      }
    }

                } catch (TransferFailedException e) {
                    String error = (e.getMessage() != null)
                            ? e.getMessage()
                            : e.getClass().getSimpleName();
                    updateCheckManager.touch(artifact, repository, error);
                    throw e;
                }

      latch.await();
    }

    @Override
    protected void triggerShutdown() {
      latch.countDown();
    }

    @Override
    protected String serviceName() {
      return this.getClass().getSimpleName() + "[" + index + "]";
    }
  }

  public void testNulls() {
    ServiceManager manager = new ServiceManager(Arrays.asList());
    new NullPointerTester()

            break; /* normal for NTLMSSP */
        default:
            if (log.isDebugEnabled()) {
                log.debug("Error code: 0x" + Hexdump.toHexString(resp.getErrorCode(), 8) + " for " + req.getClass().getSimpleName());
            }
            throw new SmbException(resp.getErrorCode(), null);
        }
        if (resp.isVerifyFailed()) {
            throw new SmbException("Signature verification failed.");

  private void assertBadUseOfReferentialEquality(Class<?> cls) throws Exception {
    try {
      tester.testEquals(cls);
    } catch (AssertionError expected) {
      assertThat(expected).hasMessageThat().contains(cls.getSimpleName() + "(");
      return;
    }
    fail("should have failed for " + cls);
  }

  public void testParameterNotInstantiableForEqualsTest() throws Exception {
    assertThrows(

     * Sets up base directory and starts background processing.
     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initializing {}", this.getClass().getSimpleName());
        }
        final String thumbnailPath = System.getProperty(Constants.FESS_THUMBNAIL_PATH);
        if (thumbnailPath != null) {
            baseDir = new File(thumbnailPath);
        } else {