When the `DeclarativeValidation` feature gate is enabled, mismatches with existing validation are reported via metrics.
  when `DeclarativeValidationTakeover` feature gate is enabled, declarative validation becomes the primary source of errors for migrated fields. ([#134072](https://github.com/kubernetes/kubernetes/pull/134072), [@yongruilin](https://github.com/yongruilin)) [SIG API Machinery, Apps and Auth]

 *  Fix: Don't re-encode `+` as `%20` in encoded URL query strings. OkHttp
    prefers `%20` when doing its own encoding, but will retain `+` when that is
    provided.
 *  Fix: Enforce that callers call `WebSocket.close()` on IO errors. Error
    handling in WebSockets is significantly improved.
 *  Fix: Don't use SPDY/3 style header concatenation for HTTP/2 request headers.
    This could have corrupted requests where multiple headers had the same name,

 *   <li>As a convenience, the {@code main} of this class (JSR166TestCase) runs all JSR166 unit
 *       tests.
 * </ul>
 */
@SuppressWarnings({
  // We call threadUnexpectedException, which does the right thing for errors.
  "AssertionFailureIgnored",
  // We're following the upstream naming to reduce diffs.
  "IdentifierName",
  "ConstantCaseForConstants",
})
@NullUnmarked
abstract class JSR166TestCase extends TestCase {

- Reverted the `EventedPLEG` feature (beta, but disabled by default) back to alpha due to a known issue.
   ([#122697](https://github.com/kubernetes/kubernetes/pull/122697), [@pacoxu](https://github.com/pacoxu))
- Used `errors.Is()` to handle errors returned by `LookPath()`.
   ([#122600](https://github.com/kubernetes/kubernetes/pull/122600), [@lzhecheng](https://github.com/lzhecheng))
- kube-proxy: Fixed `LoadBalancerSourceRanges` not working for `nftables` mode.

* The error handling behavior of `pkg/client/restclient.Result` has changed.  Calls to `Result.Raw()` will no longer parse the body, although they will still return errors that react to `pkg/api/errors.Is*()` as in previous releases.  Callers of `Get()` and `Into()` will continue to receive errors that are parsed from the body if the kind and apiVersion of the body match the `Status` object. ([#36001](https://github.com/kubernetes/kubernetes/pull/36001), [@smarterclayton](https...

   * Function<A, B> or who call convertAll (and for any checkers that apply @PolyNull-like semantics
   * to Converter.convert). So maybe we don't want to think too hard about how to prevent our
   * checkers from issuing errors related to LegacyConverter, since it turns out that
   * LegacyConverter does violate the assumptions we make elsewhere.
   */

  private @Nullable B unsafeDoForward(@Nullable A a) {

    * when updating a service or when node changes occur.
* kubectl: fixed an issue with "too old resource version" errors continuously appearing when calling `kubectl delete` ([#72825](https://github.com/kubernetes/kubernetes/pull/72825), [@liggitt](https://github.com/liggitt))

- github.com/certifi/gocertifi: [2c3bb06](https://github.com/certifi/gocertifi/tree/2c3bb06)
- github.com/cockroachdb/errors: [v1.2.4](https://github.com/cockroachdb/errors/tree/v1.2.4)
- github.com/cockroachdb/logtags: [eb05cc2](https://github.com/cockroachdb/logtags/tree/eb05cc2)
- github.com/docopt/docopt-go: [ee0de3b](https://github.com/docopt/docopt-go/tree/ee0de3b)

     *
     * @param type the class type to validate for
     * @param attributes the map of attribute names to values
     * @param consumer the consumer to handle validation errors
     */
    public void validateUserAttributes(final Class<?> type, final Map<String, String> attributes, final Consumer<String> consumer) {
        if (type == Long.class) {
            // Long type attributes

            throw new CrawlingAccessException("Could not access " + uri, e);
        }

        return responseData;
    }

    /**
     * Disconnects the internal FTP client and logs any errors.
     * This method is used to clean up failed connections.
     *
     * @param client The FTP client to disconnect
     */
    protected void disconnectInternalClient(final FTPClient client) {
        try {