* layer of fallback before consulting the system property, we could try
         * com.sun.security.auth.module.NTSystem.
         *
         * But for now, we use the value from the system property as our best guess.
         */
        return fromSystemProperty;
      } catch (InvocationTargetException e) {
        throwIfUnchecked(e.getCause()); // in case it's an Error or something

    public <T extends Address> T unwrap(final Class<T> type) {
        if (type.isAssignableFrom(this.getClass())) {
            return (T) this;
        }
        return null;
    }

    /**
     * Guess next called name to try for session establishment. These
     * methods are used by the smb package.
     *
     * @return guessed name
     */
    @Override
    public String firstCalledName() {

   *
   * <p><b>Performance note:</b> When feasible, {@code initialCapacity} should be the exact number
   * of values that will be added, if that knowledge is readily available. It is better to guess a
   * value slightly too high than slightly too low. If the value is not exact, the {@link
   * ImmutableIntArray} that is built will very likely occupy more memory than strictly necessary;

   *
   * <p><b>Performance note:</b> When feasible, {@code initialCapacity} should be the exact number
   * of values that will be added, if that knowledge is readily available. It is better to guess a
   * value slightly too high than slightly too low. If the value is not exact, the {@link
   * ImmutableLongArray} that is built will very likely occupy more memory than strictly necessary;

        }
    }

    /**
     * Guess the authentication type based on the username format
     *
     * @return the guessed authentication type
     */
    protected AuthenticationType guessAuthenticationType() {
        AuthenticationType t = AuthenticationType.USER;
        if ("guest".equalsIgnoreCase(this.username)) {
            t = AuthenticationType.GUEST;

   *       to make such changes to our serialized forms, and we have made them before, usually
   *       without trouble. In this case, my guess is that our chosen approach is even less likely
   *       to lead to trouble than an incompatible change would be.
   *   <li>We could make {@link #countMap} no longer be {@code final}. Then we could write to it

   *     {@code off + len} is greater than {@code b.length}
   */
  @CanIgnoreReturnValue
  // Sometimes you don't care how many bytes you actually read, I guess.
  // (You know that it's either going to read len bytes or stop at EOF.)
  public static int read(InputStream in, byte[] b, int off, int len) throws IOException {
    checkNotNull(in);
    checkNotNull(b);

        this.isInConflict = isInConflict;
        this.isActive = isActive;
        this.isPermanent = isPermanent;
        this.macAddress = macAddress;
        isDataFromNodeStatus = true;
    }

    /* Guess next called name to try for session establishment. These
     * methods are used by the smb package.
     */

    /**
     * Gets the first called name for session establishment.
     *

white kid gloves while she was talking.  `How CAN I have done
that?' she thought.  `I must be growing small again.'  She got up
and went to the table to measure herself by it, and found that,
as nearly as she could guess, she was now about two feet high,
and was going on shrinking rapidly:  she soon found out that the
cause of this was the fan she was holding, and she dropped it
hastily, just in time to avoid shrinking away altogether.

* Added Group/Version/Kind and Action extension to OpenAPI Operations ([#44787](https://github.com/kubernetes/kubernetes/pull/44787), [@mbohlool](https://github.com/mbohlool))

* Make clear that meta.KindToResource is only a guess ([#45272](https://github.com/kubernetes/kubernetes/pull/45272), [@sttts](https://github.com/sttts))

* Add APIService conditions ([#43301](https://github.com/kubernetes/kubernetes/pull/43301), [@deads2k](https://github.com/deads2k))