if (!skipCommasAndWhitespace() && !exhausted()) return // Expected ',' or EOF.
    }
    result.add(Challenge(schemeName, parameters))
  }
}

/** Returns true if any commas were skipped. */
private fun Buffer.skipCommasAndWhitespace(): Boolean {
  var commaFound = false
  loop@ while (!exhausted()) {
    when (this[0]) {
      ','.code.toByte() -> {
        // Consume ','.
        readByte()

  fun onHeaders(
    streamId: Int,
    responseHeaders: List<Header>,
    last: Boolean,
  ): Boolean

  /**
   * A chunk of response data corresponding to a pushed request.  This data must either be read or
   * skipped.
   *
   * @param streamId server-initiated stream ID: an even number.
   * @param source location of data corresponding with this stream ID.
   * @param byteCount number of bytes to read or skip from the source.

      return
    }

    when (message.type) {
      JsseDebugMessage.Type.Setup, JsseDebugMessage.Type.Encrypted, JsseDebugMessage.Type.Plaintext -> {
        println(message.message + " (skipped output)")
      }
      else -> println(message)
    }
  }

  fun enableJsseDebugLogging(debugHandler: (JsseDebugMessage) -> Unit = this::quietDebug): Closeable {
    System.setProperty("javax.net.debug", "")

        println("Deployed ${file.name}")
      }
    } catch (e: IllegalArgumentException) {
      if ("Jar does not have a symbolic name" in e.message!!) {
        println("Skipped non-OSGi dependency: ${file.name}")
        return
      }
      throw e
    }
  }

  companion object {
    val fileSystem = FileSystem.SYSTEM

  }
}

/**
 * Returns a substring of `input` on the range `[pos..limit)` with the following
 * transformations:
 *
 *  * Tabs, newlines, form feeds and carriage returns are skipped.
 *
 *  * In queries, ' ' is encoded to '+' and '+' is encoded to "%2B".
 *
 *  * Characters in `encodeSet` are percent-encoded.
 *
 *  * Control characters and non-ASCII characters are percent-encoded.
 *

Cipher suites that are [discouraged for use][http2_denylist] with HTTP/2. OkHttp includes them because better suites are not commonly available. For example, none of the better cipher suites listed above shipped with Android 4.4 or Java 7.

[OkHttp30]: https://square.github.io/okhttp/changelog_3x/#version-300
[OkHttp310]: https://square.github.io/okhttp/changelog_3x/#version-310

    private const val ENCODING = "encoding"
    private const val UPGRADE = "upgrade"

    /** See http://tools.ietf.org/html/draft-ietf-httpbis-http2-09#section-8.1.3. */
    private val HTTP_2_SKIPPED_REQUEST_HEADERS =
      immutableListOf(
        CONNECTION,
        HOST,
        KEEP_ALIVE,
        PROXY_CONNECTION,
        TE,
        TRANSFER_ENCODING,
        ENCODING,
        UPGRADE,

    frame.writeInt(expectedStreamId and 0x7fffffff)
    frame.writeByte(paddingLength)
    frame.write(expectedData)
    frame.write(padding)
    reader.nextFrame(requireSettings = false, assertData())
    // Padding was skipped.
    assertThat(frame.exhausted()).isTrue()
  }

  @Test fun readPaddedDataFrameZeroPadding() {
    val dataLength = 1123
    val expectedData = ByteArray(dataLength)
    Arrays.fill(expectedData, 2.toByte())