val response = client.newCall(request).execute()

    response.use {
      assertEquals(200, response.code)
      if (PlatformVersion.majorVersion > 11) {
        assertEquals(TlsVersion.TLS_1_3, response.handshake?.tlsVersion)
      }
      if (PlatformVersion.majorVersion > 8) {
        assertEquals(Protocol.HTTP_2, response.protocol)
      }

      assertThat(
        response.connection
          .socket()

            version = prop.getProperty("fess.version", "0.0.0");
            final String[] values = version.split("\\.");
            majorVersion = Integer.parseInt(values[0]);
            minorVersion = Integer.parseInt(values[1]);
            productVersion = majorVersion + "." + minorVersion;
            System.setProperty("fess.version", version);
            System.setProperty("fess.product.version", productVersion);

  @ValueSource(strings = ["TLSv1.2", "TLSv1.3"])
  @Flaky
  fun testSessionReuse(tlsVersion: String) {
    if (tlsVersion == TlsVersion.TLS_1_3.javaName) {
      assumeTrue(PlatformVersion.majorVersion != 8)
    }

    val sessionIds = mutableListOf<String>()

    enableTls()

    val tlsVersion = TlsVersion.forJavaName(tlsVersion)
    val spec =
      ConnectionSpec

    assertThat(recorded.headers["Accept-Encoding"]).isNull() // No built-in gzip.
    assertThat(recorded.headers["Connection"]).isEqualTo("Upgrade, HTTP2-Settings")
    if (PlatformVersion.majorVersion < 19) {
      assertThat(recorded.headers["Content-Length"]).isEqualTo("0")
    }
    assertThat(recorded.headers["HTTP2-Settings"]).isNotNull()