localPort = 80,
        ),
      )
    val requestLine = decodeRequestLine("CONNECT example.com:8080 HTTP/1.1")
    val request = RecordedRequest(requestLine, headers, emptyList(), 0, ByteString.EMPTY, 0, 0, socket)
    assertThat(request.target).isEqualTo("example.com:8080")
    assertThat(request.url.toString()).isEqualTo("http://example.com:8080/")
  }

  @Test fun testAbsoluteForm() {
    val socket =
      MockWebServerSocket(

 */
package mockwebserver3

import java.io.Closeable

/** Handler for mock server requests. */
public abstract class Dispatcher : Closeable {
  /**
   * Returns a response to satisfy `request`. This method may block (for instance, to wait on
   * a CountdownLatch).
   */
  @Throws(InterruptedException::class)
  public abstract fun dispatch(request: RecordedRequest): MockResponse

  /**

        setProcessPlugins(request.isProcessPlugins());
        setTwoPhaseBuilding(request.isTwoPhaseBuilding());
        setLocationTracking(request.isLocationTracking());
        setProfiles(request.getProfiles());
        setActiveProfileIds(request.getActiveProfileIds());
        setInactiveProfileIds(request.getInactiveProfileIds());
        setSystemProperties(request.getSystemProperties());
        setUserProperties(request.getUserProperties());

        if (!request.getRepositorySession().isOffline() && !requests.isEmpty()) {
            DefaultRepositorySystemSession session = new DefaultRepositorySystemSession(request.getRepositorySession());
            session.setUpdatePolicy(RepositoryPolicy.UPDATE_POLICY_ALWAYS);

            results = repositorySystem.resolveMetadata(session, requests);

            return processResults(request, trace, results, null, candidates);
        }

                    request.getGroupId(),
                    request.getArtifactId());
            throw new PluginVersionResolutionException(
                    request.getGroupId(),
                    request.getArtifactId(),
                    request.getRepositorySession().getLocalRepository(),
                    request.getRepositories(),
                    resolvedPluginVersions

//
// returns ErrNone if the signature matches.
func doesPresignedSignatureMatch(hashedPayload string, r *http.Request, region string, stype serviceType) APIErrorCode {
	// Copy request
	req := *r

	// Parse request query string.
	pSignValues, err := parsePreSignV4(req.Form, region, stype)
	if err != ErrNone {
		return err
	}

            } else if (data instanceof ArtifactDescriptorRequest request) {
                return "artifact descriptor request for " + request.getArtifact();
            } else if (data instanceof ArtifactRequest request) {
                return "artifact request for " + request.getArtifact();
            } else if (data instanceof Plugin plugin) {
                return "plugin request " + plugin.getId();
            }

    @Override
    public ProjectBuilderResult build(ProjectBuilderRequest request)
            throws ProjectBuilderException, IllegalArgumentException {
        InternalSession session = InternalSession.from(request.getSession());
        return session.request(request, this::doBuild);
    }

    protected ProjectBuilderResult doBuild(ProjectBuilderRequest request)
            throws ProjectBuilderException, IllegalArgumentException {

    if (networkRequest == null && cacheResponse == null) {
      return Response
        .Builder()
        .request(chain.request())
        .protocol(Protocol.HTTP_1_1)
        .code(HTTP_GATEWAY_TIMEOUT)
        .message("Unsatisfiable Request (only-if-cached)")
        .sentRequestAtMillis(-1L)
        .receivedResponseAtMillis(System.currentTimeMillis())
        .build()
        .also {

These handlers are in charge of returning the default JSON responses when you `raise` an `HTTPException` and when the request has invalid data.

You can override these exception handlers with your own.

### Override request validation exceptions { #override-request-validation-exceptions }

When a request contains invalid data, **FastAPI** internally raises a `RequestValidationError`.