* connections should expect repetition of stream IDs.
 *
 * Return true to request cancellation of a pushed stream.  Note that this does not guarantee
 * future frames won't arrive on the stream ID.
 */
interface PushObserver {
  /**
   * Describes the request that the server intends to push a response for.
   *
   * @param streamId server-initiated stream ID: an even number.

2. The client connects to the idle daemon and sends it a request to do some work. If the daemon is no longer running, the client starts again.
3. If the daemon is not able to run the request, for example it is already running a request or is shutting down, it rejects the request. The client starts again.
4. The daemon runs the request, sending back data such as logging output or tooling API events and intermediate models while doing so.

    ```java
      private final OkHttpClient client = new OkHttpClient();

      public void run() throws Exception {
        Request request = new Request.Builder()
            .url("https://publicobject.com/helloworld.txt")
            .build();

        try (Response response = client.newCall(request).execute()) {
          if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

        assertNotNull(request.getNegotiateContexts());
        assertNotNull(request.getPreauthSalt());

        // Verify data integrity
        assertEquals(16, request.getClientGuid().length);
        assertEquals(32, request.getPreauthSalt().length);
        assertTrue(request.getDialects().length > 0);
        assertEquals(2, request.getNegotiateContexts().length);
    }

    @Test

import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.OkHttpClient
import okhttp3.Request
import org.junit.jupiter.api.Test
import org.mockserver.client.MockServerClient
import org.mockserver.configuration.Configuration
import org.mockserver.logging.MockServerLogger
import org.mockserver.model.HttpRequest.request
import org.mockserver.model.HttpResponse.response
import org.mockserver.socket.tls.KeyStoreFactory

     *
     * @param model The model to validate, must not be {@code null}.
     * @param request The model building request that holds further settings, must not be {@code null}.
     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     */
    void validateRawModel(Model model, ModelBuildingRequest request, ModelProblemCollector problems);

    /**

            message.setShareName(request.getShareName());
            message.setIpAddress(request.getServerAddress());
            message.setClientComputerName(context.getConfig().getNetbiosHostname());
            message.setFlags(request.getFlags());
            message.setTimeout((int) (context.getConfig().getWitnessRegistrationTimeout() / 1000));

            // Send the RPC request
            rpcHandle.sendrecv(message);

        assertNull(request.body());
    }

    @Test
    public void testConstructorWithNullUrl() {
        // URL can be null with the two-argument constructor
        CurlRequest request = new CurlRequest(Method.DELETE, null);

        assertEquals(Method.DELETE, request.method());
        assertEquals("UTF-8", request.encoding());
        assertEquals(1024 * 1024, request.threshold());

  override val socket: Socket
    get() = stream!!

  override fun createRequestBody(
    request: Request,
    contentLength: Long,
  ): Sink = stream!!.sink

  override fun writeRequestHeaders(request: Request) {
    if (stream != null) return

    val hasRequestBody = request.body != null
    val requestHeaders = http2HeadersList(request)
    stream = http2Connection.newStream(requestHeaders, hasRequestBody)

     *
     * @param request the HTTP servlet request
     * @return the user code from request parameters, or null if not found or invalid
     */
    protected String getUserCodeFromRequest(final HttpServletRequest request) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String userCode = request.getParameter(fessConfig.getUserCodeRequestParameter());