- Alpha support for field selectors on custom resources has been added. With the `CustomResourceFieldSelectors` feature gate enabled, the CustomResourceDefinition API now allows specifying `selectableFields`. Listing a field there enables filtering custom resources for that CustomResourceDefinition in list or watch requests. ([#122717](https://github.com/kubernetes/kubernetes/pull/122717), [@jp...

Wenn Sie Exceptions abfangen und darauf basierend eine benutzerdefinierte Response erstellen möchten, erstellen Sie einen [benutzerdefinierten Exceptionhandler](../handling-errors.md#install-custom-exception-handlers){.internal-link target=_blank}.

## Abhängigkeiten mit `yield` und `except` { #dependencies-with-yield-and-except }

  /*
   * We avoid using a method reference or lambda here for now:
   *
   * - method reference: Inside Google, CacheBuilder is used from the implementation of a custom
   *   ClassLoader that is sometimes used as a system classloader. That's a problem because
   *   method-reference linking tries to look up the system classloader, and it fails because there
   *   isn't one yet.
   *

  @Override
  public Set<Entry<K, V>> entrySet() {
    // does not impact recency ordering
    Set<Entry<K, V>> es = entrySet;
    return (es != null) ? es : (entrySet = new EntrySet(this));
  }

  /**
   * Custom Entry class used by EntryIterator.next(), that relays setValue changes to the underlying
   * map.
   */
  private final class WriteThroughEntry implements Entry<K, V> {
    final K key;
    V value;

	RetryIntvl  time.Duration     `json:"retryInterval"`
	Proxy       string            `json:"string"`
	Transport   http.RoundTripper `json:"-"`
	HTTPTimeout time.Duration     `json:"httpTimeout"`

	// Custom logger
	LogOnceIf func(ctx context.Context, err error, id string, errKind ...any) `json:"-"`
}

// Target implements logger.Target and sends the json
// format of a log entry to the configured http endpoint.

 *   <li>USER_AGENT_PROPERTY: User agent string.</li>
 *   <li>ROBOTS_TXT_ENABLED_PROPERTY: Enable or disable robots.txt parsing.</li>
 *   <li>AUTHENTICATIONS_PROPERTY: Web authentications.</li>
 *   <li>REQUEST_HEADERS_PROPERTY: Custom request headers.</li>
 *   <li>REDIRECTS_ENABLED: Enable or disable HTTP redirects.</li>
 *   <li>COOKIES_PROPERTY: Cookie settings.</li>
 *   <li>AUTH_SCHEME_PROVIDERS_PROPERTY: Authentication scheme providers.</li>

      return true;
    }
  }

  /**
   * Per <a href="https://github.com/google/guava/issues/1635">issue 1635</a>, In JDK 1.7.0_51-b13,
   * {@link TypeVariableImpl#equals(Object)} is changed to no longer be equal to custom TypeVariable
   * implementations. As a result, we need to make sure our TypeVariable implementation respects
   * symmetry. Moreover, we don't want to reconstruct a native type variable {@code <A>} using our

		r, err := hash.NewReader(ctx, bytes.NewReader(b.data), int64(len(b.data)), "", "", int64(len(b.data)))
		bugLogIf(ctx, err)
		custom := b.headerKV()
		_, err = er.putMetacacheObject(ctx, o.objectPath(b.n), NewPutObjReader(r), ObjectOptions{
			UserDefined: custom,
		})
		if err != nil {
			mc.setErr(err.Error())
			cancel()
			return err
		}
		if b.n == 0 {
			return nil
		}

     */
    public void setCacheDuration(final long cacheDuration) {
        this.cacheDuration = cacheDuration;
    }

    /**
     * DefaultNamespaceContext is a custom implementation of NamespaceContext.
     * It is used to resolve namespace URIs for XML elements and attributes
     * within the context of the provided XML document node.
     */

    return new ArrayTable<>(rowKeys, columnKeys);
  }

  /*
   * TODO(jlevy): Add factory methods taking an Enum class, instead of an
   * iterable, to specify the allowed row keys and/or column keys. Note that
   * custom serialization logic is needed to support different enum sizes during
   * serialization and deserialization.
   */

  /**
   * Creates an {@code ArrayTable} with the mappings in the provided table.
   *