[fun_interface]: https://kotlinlang.org/docs/reference/fun-interfaces.html
 [iana_websocket]: https://www.iana.org/assignments/websocket/websocket.txt
 [jetty_8_252]: https://webtide.com/jetty-alpn-java-8u252/
 [kotlin_1_3_71]: https://github.com/JetBrains/kotlin/releases/tag/v1.3.71

 * See [JDK Providers][oracle_providers] which lists the cipher suites supported by Oracle.
 *
 * See [NativeCrypto.java][conscrypt_providers] which lists the cipher suites supported by
 * Conscrypt.
 *
 * [iana_tls_parameters]: https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml
 * [sslengine]: https://developer.android.com/reference/javax/net/ssl/SSLEngine.html

 * specific language governing permissions and limitations
 * under the License.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

package okhttp3.internal.http

      throw AssertionError("Thread ${Thread.currentThread().name} MUST NOT hold lock on $this")
    }
  }

  val logger = Logger.getLogger("TaskFaker." + instance++)

  /** Though this executor service may hold many threads, they are not executed concurrently. */
  private val tasksExecutor = Executors.newCachedThreadPool(threadFactory("TaskFaker"))

  /**

internal fun FileSystem.deleteIfExists(path: Path) {
  try {
    delete(path)
  } catch (fnfe: FileNotFoundException) {
    return
  }
}

/** Tolerant delete, try to clear as many files as possible even after a failure. */
internal fun FileSystem.deleteContents(directory: Path) {
  var exception: IOException? = null
  val files =
    try {
      list(directory)

 *
 * A URL has several components.
 *
 * ### Scheme
 *
 * Sometimes referred to as *protocol*, A URL's scheme describes what mechanism should be used to
 * retrieve the resource. Although URLs have many schemes (`mailto`, `file`, `ftp`), this class only
 * supports `http` and `https`. Use [java.net.URI][URI] for URLs with arbitrary schemes.
 *
 * ### Username and Password
 *

          closeActiveExchange = false
          return response
        }

        response.body.closeQuietly()

        if (++followUpCount > MAX_FOLLOW_UPS) {
          throw ProtocolException("Too many follow-up requests: $followUpCount")
        }

        request = followUp
        priorResponse = response
      } finally {
        call.exitNetworkInterceptorExchange(closeActiveExchange)
      }
    }

_2023-12-17_

We took too long to cut this release and there's a lot of changes in it. We've been busy.

Although this release is labeled _alpha_, the only unstable thing in it is our new APIs. This
release has many critical bug fixes and is safe to run in production. We're eager to stabilize our
new APIs so we can get out of alpha.

 *  New: Support Java 21's virtual threads (‘OpenJDK Project Loom’). We changed OkHttp's internals

import java.net.InetSocketAddress
import java.net.Proxy
import okhttp3.internal.toCanonicalHost

/**
 * The concrete route used by a connection to reach an abstract origin server. When creating a
 * connection the client has many options:
 *
 *  * **HTTP proxy:** a proxy server may be explicitly configured for the client. Otherwise, the
 *    [proxy selector][java.net.ProxySelector] is used. It may return multiple proxies to attempt.

  ): Boolean {
    if (toVerify.issuerDN != signingCert.subjectDN) {
      return false
    }
    if (signingCert.basicConstraints < minIntermediates) {
      return false // The signer can't have this many intermediates beneath it.
    }
    return try {
      toVerify.verify(signingCert.publicKey)
      true
    } catch (verifyFailed: GeneralSecurityException) {
      false
    }
  }