sslSocket.sslParameters = sslParameters
    } catch (iae: IllegalArgumentException) {
      // probably java.lang.IllegalArgumentException: Invalid input to toASCII from IDN.toASCII
      throw IOException("Android internal error", iae)
    }
  }

  @SuppressSignatureCheck
  companion object {
    fun buildIfSupported(): SocketAdapter? = if (isSupported()) Android10SocketAdapter() else null

  }

  @Test
  fun testFailsIfTrailersNotSet() {
    val response =
      newResponse("".toResponseBody()) {
        // All live paths (Http1, Http2) in OkHttp do this
        trailers { error("trailers not available") }
      }

    assertFailsWith<IllegalStateException>(message = "trailers not available") {
      response.trailers()
    }
  }

  @Test
  fun worksIfTrailersSet() {

     * May be an empty list indicating that the host is unreachable.
     */
    fun onResponse(
      hostname: String,
      addresses: List<InetAddress>,
    )

    /**
     * Returns an error for the DNS query.
     */
    fun onFailure(
      hostname: String,
      e: IOException,
    )
  }

  /**
   * Class of DNS addresses, such that clients that treat these differently, such

    SocketPolicy.STALL_SOCKET_AT_START -> StallSocketAtStart
    SocketPolicy.NO_RESPONSE -> NoResponse
    SocketPolicy.RESET_STREAM_AT_START -> ResetStreamAtStart(http2ErrorCode)
    else -> error("Unexpected SocketPolicy: $socketPolicy")
  }

  val size: Int
    get() = encodedNames.size

  @JvmName("-deprecated_size")
  @Deprecated(
    message = "moved to val",
    replaceWith = ReplaceWith(expression = "size"),
    level = DeprecationLevel.ERROR,
  )
  fun size(): Int = size

  fun encodedName(index: Int): String = encodedNames[index]

  fun name(index: Int): String = encodedName(index).percentDecode(plusIsSpace = true)

   * TODO description.
   *
   * No further calls to this listener will be made.
   */
  open fun onClosed(eventSource: EventSource) {
  }

  /**
   * Invoked when an event source has been closed due to an error reading from or writing to the
   * network. Incoming events may have been lost. No further calls to this listener will be made.
   */
  open fun onFailure(
    eventSource: EventSource,
    t: Throwable?,

   * non-null, it should be reported to the user should all further attempts fail.
   *
   * The two values are independent: results can contain both (recoverable error), neither
   * (success), just an exception (permanent failure), or just a plan (non-exceptional retry).
   */
  data class ConnectResult(
    val plan: Plan,
    val nextPlan: Plan? = null,

  AnnotationTarget.CONSTRUCTOR,
  AnnotationTarget.FUNCTION,
  AnnotationTarget.PROPERTY_GETTER,
  AnnotationTarget.PROPERTY_SETTER,
  AnnotationTarget.TYPEALIAS,
)
@RequiresOptIn(level = RequiresOptIn.Level.ERROR)

    fi
    if [ ! -x "$JAVACMD" ] ; then
        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME

Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
    fi
else
    JAVACMD=java
    if ! command -v java >/dev/null 2>&1
    then
        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.

    // If the problem was a CertificateException from the X509TrustManager, do not retry.
    e is SSLHandshakeException && e.cause is CertificateException -> false

    // e.g. a certificate pinning error.
    e is SSLPeerUnverifiedException -> false

    // Retry for all other SSL failures.
    e is SSLException -> true

    else -> false
  }