client
      .newCall(request)
      .execute()
      .use { response ->
        assertThat(response.code).isEqualTo(HTTP_SWITCHING_PROTOCOLS)
        val socket = response.socket!!
        socket.sink.buffer().use { sink ->
          socket.source.buffer().use { source ->
            sink.writeUtf8("client says hello\n")
            sink.flush()

    val eventListener =
      object : EventListener() {
        var socket: SSLSocket? = null
        var closed = false

        override fun connectionAcquired(
          call: Call,
          connection: Connection,
        ) {
          socket = connection.socket() as SSLSocket
        }

        override fun requestHeadersStart(call: Call) {
          if (closed) {

      // https://github.com/bcgit/bc-java/issues/1773
      listOf()
    }
  }

  @Throws(IOException::class)
  open fun connectSocket(
    socket: Socket,
    address: InetSocketAddress,
    connectTimeout: Int,
  ) {
    socket.connect(address, connectTimeout)
  }

  open fun log(
    message: String,
    level: Int = INFO,
    t: Throwable? = null,
  ) {

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.internal.connection

import java.net.Socket as JavaNetSocket
import okio.BufferedSink
import okio.BufferedSource
import okio.Socket as OkioSocket
import okio.asOkioSocket
import okio.buffer

interface BufferedSocket : OkioSocket {
  override val source: BufferedSource
  override val sink: BufferedSink

    result = 31 * result + proxy.hashCode()
    result = 31 * result + socketAddress.hashCode()
    return result
  }

  /**
   * Returns a string with the URL hostname, socket IP address, and socket port, like one of these:
   *
   *  * `example.com:80 at 1.2.3.4:8888`
   *  * `example.com:443 via proxy [::1]:8888`
   *
   * This omits duplicate information when possible.
   */

fs.s3a.max.total.tasks=2048 # Maximum number of parallel tasks
fs.s3a.multipart.size=512M # Size of each multipart chunk
fs.s3a.multipart.threshold=512M # Size before using multipart uploads
fs.s3a.socket.recv.buffer=65536 # Read socket buffer hint
fs.s3a.socket.send.buffer=65536 # Write socket buffer hint
fs.s3a.threads.max=2048 # Maximum number of threads for S3A
```

The rest of the other optimization options are discussed in the links below

            transport = Remote.RemoteTransport.SOCKET
            sharedMemoryAddress = "javadebug"
            host = "localhost"
            port = 5005
            autoRestart = true
        }
        create<Remote>("Launcher debug (port 5006)") {
            mode = Remote.RemoteMode.LISTEN
            transport = Remote.RemoteTransport.SOCKET
            sharedMemoryAddress = "javadebug"

                  }
                }.build(),
            ),
          )
        }
      }.addNetworkInterceptor {
        val socket = it.connection()!!.socket() as SSLSocket

        handshakeEnabledCipherSuites = socket.enabledCipherSuites.toList()

        it.proceed(it.request())
      }.build()

  private fun makeRequest(client: OkHttpClient): Handshake {

  fun addProxy(proxy: Proxy): FakeProxySelector {
    proxies.add(proxy)
    return this
  }

  override fun select(uri: URI): List<Proxy> {
    // Don't handle 'socket' schemes, which the RI's Socket class may request (for SOCKS).
    return if (uri.scheme == "http" || uri.scheme == "https") proxies else listOf(Proxy.NO_PROXY)
  }

  override fun connectFailed(
    uri: URI,
    sa: SocketAddress,

 * limitations under the License.
 */
package okhttp3

import okio.ByteString

abstract class WebSocketListener {
  /**
   * Invoked when a web socket has been accepted by the remote peer and may begin transmitting
   * messages.
   */
  open fun onOpen(
    webSocket: WebSocket,
    response: Response,
  ) {
  }