- Kube-apiserver: fixes a potential crash serving CustomResourceDefinitions that combine an invalid schema and CEL validation rules. ([#126167](https://github.com/kubernetes/kubernetes/pull/126167), [@cici37](https://github.com/cici37)) [SIG API Machinery and Testing]

		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrMalformedXML: {
		Code:           "MalformedXML",
		Description:    "The XML you provided was not well-formed or did not validate against our published schema.",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrMissingContentLength: {
		Code:           "MissingContentLength",
		Description:    "You must provide the Content-Length HTTP header.",

    proxies.add(proxy)
    return this
  }

  override fun select(uri: URI): List<Proxy> {
    // Don't handle 'socket' schemes, which the RI's Socket class may request (for SOCKS).
    return if (uri.scheme == "http" || uri.scheme == "https") proxies else listOf(Proxy.NO_PROXY)
  }

  override fun connectFailed(
    uri: URI,
    sa: SocketAddress,
    ioe: IOException,
  ) {
  }

- Fix kubectl SchemaError on CRDs with schema using x-kubernetes-preserve-unknown-fields on array types. ([#94888](https://github.com/kubernetes/kubernetes/pull/94888), [@sttts](https://github.com/sttts)) [SIG API Machinery]

- Kube-apiserver: fixes a potential crash serving CustomResourceDefinitions that combine an invalid schema and CEL validation rules. ([#126167](https://github.com/kubernetes/kubernetes/pull/126167), [@cici37](https://github.com/cici37)) [SIG API Machinery and Testing]

                }
            }
        }

        formSchemeList.forEach(p -> {
            final FormScheme scheme = p.getFirst();
            final Credentials credentials = p.getSecond();
            scheme.authenticate(credentials, (request, consumer) -> {

                // request header
                for (final Header header : requestHeaderList) {

    /**
     * @param scheme either "http" or "https".
     */
    fun scheme(scheme: String) =
      apply {
        when {
          scheme.equals("http", ignoreCase = true) -> this.scheme = "http"
          scheme.equals("https", ignoreCase = true) -> this.scheme = "https"
          else -> throw IllegalArgumentException("unexpected scheme: $scheme")
        }
      }

### Promoted Server Side Unknown Field Validation to Beta

{* ../../docs_src/security/tutorial005_an_py310.py hl[5,9,13,47,65,106,108:116,122:126,130:136,141,157] *}

Now let's review those changes step by step.

## OAuth2 Security scheme { #oauth2-security-scheme }

The first change is that now we are declaring the OAuth2 security scheme with two available scopes, `me` and `items`.

The `scopes` parameter receives a `dict` with each scope as a key and the description as the value:

    authParams["charset"] = charset.name()
    return Challenge(scheme, authParams)
  }

  @JvmName("-deprecated_scheme")
  @Deprecated(
    message = "moved to val",
    replaceWith = ReplaceWith(expression = "scheme"),
    level = DeprecationLevel.ERROR,
  )
  fun scheme(): String = scheme

  @JvmName("-deprecated_authParams")
  @Deprecated(
    message = "moved to val",