## HTTP/2 Connections

The HttpURLConnection API is a blocking API. You make a blocking write to send a request, and a blocking read to receive the response.

#### Blocking APIs

Blocking APIs are convenient because you get top-to-bottom procedural code without indirection. Network calls work like regular method calls: ask for data and it is returned. If the request fails, you get a stacktrace right where the call was made.

---
- job:
    name: "elastic+elasticsearch+pull-request+packaging-tests-windows-sample-nojdk"
    display-name: "elastic / elasticsearch - pull request packaging-tests-windows-sample-nojdk"
    description: "Testing of Elasticsearch pull requests - packaging-tests-windows-sample-nojdk"
    # We use a hard-coded workspace directory here to avoid hitting windows path length limits
    child-workspace: "C:\\Users\\jenkins\\workspace\\pr-packaging-windows\\${BUILD_NUMBER}"

                    }
                }

                request.setSessionId(this.sessionId);
                request.setUid(this.uid);

                if (request.getDigest() == null) {
                    request.setDigest(getDigest());
                }

                if (request instanceof RequestWithPath rpath) {

sequenceDiagram
    participant Client
    participant Proxy as Proxy/Load Balancer
    participant Server as FastAPI Server

    Client->>Proxy: HTTPS Request<br/>Host: mysuperapp.com<br/>Path: /items

    Note over Proxy: Proxy adds forwarded headers

    Proxy->>Server: HTTP Request<br/>X-Forwarded-For: [client IP]<br/>X-Forwarded-Proto: https<br/>X-Forwarded-Host: mysuperapp.com<br/>Path: /items

- **Key Derivation**: SMB3 KDF implementation with dialect-specific parameters
- **Pre-Authentication Integrity**: SMB 3.1.1 PAI for preventing downgrade attacks
- **Automatic Detection**: Encryption automatically enabled when servers require it
- **Secure Key Management**: Proper key derivation and nonce generation

### Core Features
- **Per-context configuration**: No global state, each context encapsulates configuration

 *  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,
    as in cookies.
 *  Fix: Reject bad characters in the URL hostname. Previously characters like
    `\0` would cause a late crash when building the request.
 *  Fix: Allow interceptors to change the request method.

            status_code=HTTP_401_UNAUTHORIZED,
            detail="Not authenticated",
            headers={"WWW-Authenticate": "Bearer"},
        )

    async def __call__(self, request: Request) -> str | None:
        authorization = request.headers.get("Authorization")
        if not authorization:
            if self.auto_error:
                raise self.make_not_authenticated_error()
            else:

    /**
     * Check if the negotiation response is valid
     *
     * @param cifsContext the CIFS context
     * @param request the negotiation request
     * @return whether the protocol negotiation was successful
     */
    boolean isValid(CIFSContext cifsContext, SmbNegotiationRequest request);

    /**
     * Gets the SMB dialect version selected by the server.
     *
     * @return selected dialect
     */

 *  New: Add the TLS version to the `Handshake`.
 *  New: Drop `Request.uri()` and `Request#urlString()`. Just use
    `Request.url().uri()` and `Request.url().toString()`.
 *  New: Add URL to HTTP response logging.
 *  New: Make `HttpUrl` the blessed URL method of `Request`.


## Version 2.x

[Change log](changelog_2x.md)

 *     .build();
 * OkHttpClient client = OkHttpClient.Builder()
 *     .certificatePinner(certificatePinner)
 *     .build();
 *
 * Request request = new Request.Builder()
 *     .url("https://" + hostname)
 *     .build();
 * client.newCall(request).execute();
 * ```
 *
 * As expected, this fails with a certificate pinning exception:
 *
 * ```java