new EqualsTester().addEqualityGroup(new EqualsBasedOnToString("foo")).testEquals());
    assertThat(e).hasMessageThat().contains("toString representation");
  }

  private static void assertErrorMessage(Throwable e, String message) {
    // TODO(kevinb): use a Truth assertion here
    if (!e.getMessage().contains(message)) {
      fail("expected <" + e.getMessage() + "> to contain <" + message + ">");
    }
  }

  /**

    assertThat(getDone(future)).isEqualTo(expectedResult);
    assertThat(getDoneFromTimeoutOverload(future)).isEqualTo(expectedResult);
  }

  private static void assertFailed(AbstractFuture<Integer> future, Throwable expectedException)
      throws InterruptedException, TimeoutException {
    assertDone(future);
    assertThat(future.isCancelled()).isFalse();

    try {
      getDone(future);
      fail();

     * @param se the SmbException to convert
     * @return an IOException wrapping the SmbException
     */
    protected static IOException seToIoe(final SmbException se) {
        IOException ioe = se;
        Throwable root = se.getCause();
        if (root instanceof TransportException) {
            ioe = (TransportException) root;
            root = ioe.getCause();
        }
        if (root instanceof InterruptedException) {

                new EqualsTester().addEqualityGroup(new EqualsBasedOnToString("foo")).testEquals());
    assertThat(e).hasMessageThat().contains("toString representation");
  }

  private static void assertErrorMessage(Throwable e, String message) {
    // TODO(kevinb): use a Truth assertion here
    if (!e.getMessage().contains(message)) {
      fail("expected <" + e.getMessage() + "> to contain <" + message + ">");
    }
  }

  /**

            if (webinfPath != null && Files.exists(Paths.get(webinfPath))) {
                return Paths.get(webinfPath, names);
            }
        } catch (final Throwable e) {
            // ignore
        }
        final String webinfBase = root + base;
        if (Files.exists(Paths.get(webinfBase))) {
            return Paths.get(webinfBase, names);
        }

      new ThreadLocal<List<LockGraphNode>>() {
        @Override
        protected List<LockGraphNode> initialValue() {
          return newArrayListWithCapacity(3);
        }
      };

  /**
   * A Throwable used to record a stack trace that illustrates an example of a specific lock
   * acquisition ordering. The top of the stack trace is truncated such that it starts with the
   * acquisition of the lock in question, e.g.
   *

        try {
            super.insert(urlQueue, urlQueue.getId() == null ? OpType.CREATE : OpType.INDEX);
        } catch (final OpenSearchAccessException e) {
            final Throwable cause = e.getCause();
            if (cause != null && "VersionConflictEngineException".equals(cause.getClass().getSimpleName())) {
                if (logger.isDebugEnabled()) {

        try {
            if (value.getClass() == String.class) {
                return converter.getAsObject((String) value);
            }
            return converter.getAsString(value);
        } catch (final Throwable cause) {
            throw new ConverterRuntimeException(destPropertyName, value, cause);
        }
    }

    /**
     * Finds the converter corresponding to the class.
     *
     * @param clazz

        Character.class,
        int[].class,
        Object[].class,
        UnsignedInteger.class,
        UnsignedLong.class,
        BigInteger.class,
        BigDecimal.class,
        Throwable.class,
        Error.class,
        Exception.class,
        RuntimeException.class,
        Charset.class,
        Locale.class,
        Currency.class,
        List.class,
        Entry.class,

     *
     * @param success A callback for successful indexing.
     * @param error   A callback for indexing errors.
     */
    public void indexFromDocuments(final Consumer<Boolean> success, final Consumer<Throwable> error) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final long interval = fessConfig.getSuggestUpdateRequestIntervalAsInteger().longValue();