StringWriter writer = new StringWriter();
    char[] buf = new char[64];
    int read;
    while ((read = reader.read(buf)) != -1) {
      writer.write(buf, 0, read);
    }
    reader.close();
    writer.close();

    assertExpectedString(writer.toString());
  }

  public void testCopyTo_appendable() throws IOException {
    StringBuilder builder = new StringBuilder();

                try {
                    tempFile = File.createTempFile("ftp-", ".tmp");
                    try (OutputStream out = new BufferedOutputStream(new FileOutputStream(tempFile))) {
                        if (!client.retrieveFile(ftpInfo.getName(), out)) {
                            throw new CrawlingAccessException("Failed to retrieve: " + ftpInfo.toUrl());
                        }
                    }

      super(
          new UnhashableObject(1),
          new UnhashableObject(2),
          new UnhashableObject(3),
          new UnhashableObject(4),
          new UnhashableObject(5));
    }
  }

  public static class Colliders extends SampleElements<Object> {
    public Colliders() {
      super(new Collider(1), new Collider(2), new Collider(3), new Collider(4), new Collider(5));
    }
  }

    return new UncheckedThrowingFuture<V>();
  }

  public void complete(RuntimeException e) {
    if (!super.setException(new WrapperException(checkNotNull(e)))) {
      throw new IllegalStateException("Future was already complete: " + this);
    }
  }

  public void complete(Error e) {
    if (!super.setException(new WrapperException(checkNotNull(e)))) {

        final Vector<String> vector = new Vector<String>();
        vector.add("a");
        final EnumerationIterator<String> itr = new EnumerationIterator<String>(vector.elements());
        itr.remove();
    }

    /**
     * @throws Exception
     */
    @Test
    public void testNext() throws Exception {
        final EnumerationIterator<String> itr = new EnumerationIterator<String>(new Vector<String>().elements());

            model = new MavenXpp3Reader().read(is);
        }

        // Serialize an inner child here so that the BaseObject.childrenTracking is non null
        Build build = model.getBuild();

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        try (ObjectOutputStream oos = new ObjectOutputStream(baos)) {
            oos.writeObject(build);
        }

                NullPointerException.class,
                () -> new FileSource((File) null),
                "Should fail, since you must specify a file");
        assertEquals("file cannot be null", e.getMessage());
    }

    @Test
    void testGetInputStream() throws Exception {
        File txtFile = new File("target/test-classes/source.txt");
        FileSource source = new FileSource(txtFile);

  /** Generator of new random hash codes */
  static final Random rng = new Random();

  /** Number of CPUS, to place bound on table size */
  static final int NCPU = Runtime.getRuntime().availableProcessors();

  /** Table of cells. When non-null, size is a power of 2. */
  @CheckForNull transient volatile Cell[] cells;

  /**

  }

  public void testBuilderPutAll() {
    Map<String, Integer> toPut = new LinkedHashMap<>();
    toPut.put("one", 1);
    toPut.put("two", 2);
    toPut.put("three", 3);
    Map<String, Integer> moreToPut = new LinkedHashMap<>();
    moreToPut.put("four", 4);
    moreToPut.put("five", 5);

    ImmutableBiMap<String, Integer> map =
        new Builder<String, Integer>().putAll(toPut).putAll(moreToPut).build();

                return new String[] { values[0], StringUtil.EMPTY };
            }
        }
        throw new CrawlingAccessException("Invalid path: " + path);
    }

    protected ResponseData getResponseData(final String uri, final boolean includeContent) {
        final ResponseData responseData = new ResponseData();
        try {