}
    }

    /**
     * Checks if this represents an unknown address.
     *
     * @return whether this is the unknown address
     */
    public boolean isUnknown() {
        return "0.0.0.0".equals(this.name) && this.hexCode == 0 && this.scope == null;
    }

    int writeWireFormat(final byte[] dst, final int dstIndex) {
        // write 0x20 in first byte

  public int getAndSet(int newValue) {
    int result = value;
    value = newValue;
    return result;
  }

  @Override
  public int hashCode() {
    return value;
  }

  @Override
  public boolean equals(@Nullable Object obj) {
    return obj instanceof Count && ((Count) obj).value == value;
  }

  @Override
  public String toString() {
    return Integer.toString(value);
  }

  private final String s;

  public BaseComparable(String s) {
    this.s = s;
  }

  @Override
  public int hashCode() { // delegate to 's'
    return s.hashCode();
  }

  @Override
  public boolean equals(@Nullable Object other) {
    if (other == null) {
      return false;
    } else if (other instanceof BaseComparable) {
      return s.equals(((BaseComparable) other).s);
    } else {
      return false;
    }

    this.backingIterator = checkNotNull(backingIterator);
  }

  @ParametricNullness
  abstract T transform(@ParametricNullness F from);

  @Override
  public final boolean hasNext() {
    return backingIterator.hasNext();
  }

  @Override
  @ParametricNullness
  public final T next() {
    return transform(backingIterator.next());
  }

  @Override

  }

  static class OverridesEquals {
    @SuppressWarnings("EqualsHashCode")
    @Override
    public boolean equals(@Nullable Object o) {
      return true;
    }
  }

  static class DoesNotOverrideEquals {
    public boolean equals(Object a, Object b) {
      return true;
    }
  }

  public void testEqualsMethod() {
    shouldPass(new OverridesEquals());

        thread.start();

        Thread.sleep(50);

        String output1 = thread.getOutput();
        boolean contains1 = thread.contains("concurrent1");

        thread.join(1000);

        String output2 = thread.getOutput();
        boolean contains2 = thread.contains("concurrent1");

        assertNotNull(output1);
        assertNotNull(output2);
        assertTrue(contains2);

    PreOrderIterator(T root) {
      this.stack = new ArrayDeque<>();
      stack.addLast(singletonIterator(checkNotNull(root)));
    }

    @Override
    public boolean hasNext() {
      return !stack.isEmpty();
    }

    @Override
    public T next() {
      Iterator<T> itr = stack.getLast(); // throws NSEE if empty
      T result = checkNotNull(itr.next());

     * @return found addresses
     * @throws UnknownHostException if the hostname cannot be resolved
     */
    Address[] getAllByName(String hostname, boolean possibleNTDomainOrWorkgroup) throws UnknownHostException;

    /**
     * Lookup <code>hostname</code> and return it's <code>UniAddress</code>. If the

     * @return true if access is allowed, false if access is disallowed by robots.txt rules.
     *         Returns true if no matching directive is found for the user agent.
     */
    public boolean allows(final String path, final String userAgent) {
        final Directive directive = getMatchedDirective(userAgent);
        if (directive == null) {
            return true;
        }

  }

  public final Set<Feature<?>> getPresentFeatures() {
    return presentFeatures;
  }

  public final Set<Feature<?>> getAbsentFeatures() {
    return absentFeatures;
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object == this) {
      return true;
    }
    if (object instanceof TesterRequirements) {
      TesterRequirements that = (TesterRequirements) object;