*     Corresponds to `FLAG_FIN`.
   */
  @Throws(IOException::class)
  fun newStream(
    requestHeaders: List<Header>,
    out: Boolean,
  ): Http2Stream = newStream(0, requestHeaders, out)

  @Throws(IOException::class)
  private fun newStream(
    associatedStreamId: Int,
    requestHeaders: List<Header>,
    out: Boolean,
  ): Http2Stream {
    val outFinished = !out
    val inFinished = false

        Map<String, Object> initParamMap = initParamMapSet.get();
        assertNotNull(initParamMap);
        assertEquals(0, ((org.codelibs.fess.crawler.client.http.RequestHeader[]) initParamMap.get("requestHeaders")).length);
        assertEquals("Mozilla/5.0 (compatible; Fess/98.76; +http://fess.codelibs.org/bot.html)", initParamMap.get("userAgent"));

      val requestHeaders = networkResponse!!.request.headers
      val responseHeaders = headers
      return varyHeaders(requestHeaders, responseHeaders)
    }

    /**
     * Returns the subset of the headers in [requestHeaders] that impact the content of the
     * response's body.
     */
    private fun varyHeaders(
      requestHeaders: Headers,
      responseHeaders: Headers,

    public static final String AUTHENTICATIONS_PROPERTY = "webAuthentications";

    /** Property name for request headers setting */
    public static final String REQUEST_HEADERS_PROPERTY = "requestHeaders";

    /** Property name for redirects enabled setting */
    public static final String REDIRECTS_ENABLED = "redirectsEnabled";

    /** Property name for cookies setting */

      client
        .newBuilder()
        .cookieJar(
          JavaNetCookieJar(
            object : CookieManager() {
              override fun get(
                uri: URI,
                requestHeaders: Map<String, List<String>>,
              ) = mapOf(
                "COOKIE" to listOf("Bar=bar"),
                "cooKIE2" to listOf("Baz=baz"),
              )
            },
          ),

     * @param promisedStreamId server-initiated stream ID.  Must be an even number.
     * @param requestHeaders minimally includes `:method`, `:scheme`, `:authority`, and `:path`.
     */
    @Throws(IOException::class)
    fun pushPromise(
      streamId: Int,
      promisedStreamId: Int,
      requestHeaders: List<Header>,
    )

    /**

        // Request Header
        final RequestHeader[] requestHeaders = getInitParameter(REQUEST_HEADERS_PROPERTY, new RequestHeader[0], RequestHeader[].class);
        for (final RequestHeader requestHeader : requestHeaders) {
            if (requestHeader.isValid()) {
                requestHeaderList.add(new BasicHeader(requestHeader.getName(), requestHeader.getValue()));
            }
        }

        // Request Header
        final RequestHeader[] requestHeaders = getInitParameter(REQUEST_HEADERS_PROPERTY, new RequestHeader[0], RequestHeader[].class);
        for (final RequestHeader requestHeader : requestHeaders) {
            if (requestHeader.isValid()) {
                requestHeaderList.add(new BasicHeader(requestHeader.getName(), requestHeader.getValue()));
            }
        }

      override fun put(
        uri: URI?,
        responseHeaders: MutableMap<String, MutableList<String>>?,
      ) = TODO()

      override fun get(
        uri: URI?,
        requestHeaders: MutableMap<String, MutableList<String>>?,
      ): MutableMap<String, MutableList<String>> = TODO()
    }

  private fun newInterceptorChain(): Interceptor.Chain =
    object : Interceptor.Chain {

    }
  }

  @Test
  fun requestHeaders() {
    server.enqueue(MockResponse())
    val request =
      Request
        .Builder()
        .url(server.url("/"))
        .addHeader("D", "e")
        .addHeader("D", "f")
        .build()
    assertThat(request.header("D")).isEqualTo("f")
    assertThat(request.header("d")).isEqualTo("f")
    val requestHeaders = request.headers