collection.containsAll(MinimalCollection.of(e3())));
  }

  @CollectionFeature.Require(absent = ALLOWS_NULL_QUERIES)
  public void testContainsAll_nullNotAllowed() {
    try {
      assertFalse(collection.containsAll(MinimalCollection.of((E) null)));
    } catch (NullPointerException tolerated) {
    }
  }

  @CollectionFeature.Require(ALLOWS_NULL_QUERIES)

  public <T extends @Nullable Object> T callWithTimeout(
      Callable<T> callable, long timeoutDuration, TimeUnit timeoutUnit) throws ExecutionException {
    checkNotNull(callable);
    checkNotNull(timeoutUnit);
    try {
      return callable.call();
    } catch (RuntimeException e) {
      throw new UncheckedExecutionException(e);
    } catch (Exception e) {
      restoreInterruptIfIsInterruptedException(e);

            if (this.filter == null) {
                try {
                    return adapt(n);
                } catch (final MalformedURLException e) {
                    log.error("Failed to create child URL", e);
                    continue;
                }
            }
            try (SmbResource nr = adapt(n)) {
                if (!this.filter.accept(nr)) {

        TermQuery termQuery = new TermQuery(new Term("field", "value"));
        QueryContext context = new QueryContext("test", false);

        try {
            boostQueryCommand.execute(context, termQuery, 1.0f);
            fail("Should have thrown InvalidQueryException");
        } catch (InvalidQueryException e) {
            // Expected exception

        Versioning versioning = null;
        try {
            if (metadata != null) {
                try (SyncContext syncContext = syncContextFactory.newInstance(session, true)) {
                    syncContext.acquire(null, Collections.singleton(metadata));

                    if (metadata.getPath() != null && Files.exists(metadata.getPath())) {
                        try (InputStream in = Files.newInputStream(metadata.getPath())) {

        });

        reportErrors(errors, getReportFile().get().getAsFile());
    }

    private void reportErrors(Map<File, List<Error>> errors, File reportFile) {
        try (PrintWriter fw = new PrintWriter(new FileWriter(reportFile))) {
            writeHeader(fw);
            if (errors.isEmpty()) {
                fw.println("All clear!");
                return;
            }

      for (int i = 0; i < parameters.size(); i++) {
        args[i] = getDefaultValue(parameters.get(i).getType());
      }
      try {
        try {
          method.invoke(object, args);
        } catch (InvocationTargetException ex) {
          try {
            throw ex.getCause();
          } catch (UnsupportedOperationException unsupported) {
            // this is a legit exception
          }

            while ((callback = doneCallbacks.poll()) != null) {
                executeCallbacks.add(callback);
            }
        }
        if (executeCallbacks.size() > 0) {
            try {
                executeCallbacks.stream().forEach(callback -> callback.accept(response));
            } catch (final Exception ignore) {}
        }
        latch.countDown();
    }

    /**

     * @throws DictionaryException if there's an error accessing the dictionaries
     */
    public DictionaryFile<? extends DictionaryItem>[] getDictionaryFiles() {
        try (CurlResponse response = ComponentUtil.getCurlHelper()
                .get("/_configsync/file")
                .param("fields", "path,@timestamp")

                // no credentials
                return !fessConfig.isLdapAuthValidation();
            }
            try {
                final Hashtable<String, String> env = createAdminEnv();
                try (DirContextHolder holder = getDirContext(() -> env)) {
                    final DirContext context = holder.get();
                    if (logger.isDebugEnabled()) {