*
 * Sometimes a request will result in a conditional cache hit. If the cache contains a stale copy of
 * the response, the client will issue a conditional `GET`. The server will then send either
 * the updated response if it has changed, or a short 'not modified' response if the client's copy
 * is still valid. Such responses increment both the network count and hit count.
 *

    impacts VM-wide behavior.

 *  New: Reduce contention for applications that make a very high number of concurrent requests.
    Previously OkHttp used its connection pool as a lock when making changes to connections and
    calls. With this change each connection is locked independently.

 *  Upgrade: [Okio 2.7.0][okio_2_7_0].

    ```kotlin
    implementation("com.squareup.okio:okio:2.7.0")
    ```

      }

    val fileOperator = FileOperator(file!!.channel)
    fileOperator.write(0, header, FILE_HEADER_SIZE)
  }

  @Throws(IOException::class)
  private fun writeMetadata(upstreamSize: Long) {
    val metadataBuffer = Buffer()
    metadataBuffer.write(metadata)

    val fileOperator = FileOperator(file!!.channel)

    @JvmStatic
    @JvmName("of")
    fun headersOf(vararg namesAndValues: String): Headers = commonHeadersOf(*namesAndValues)

    @JvmName("-deprecated_of")
    @Deprecated(
      message = "function name changed",
      replaceWith = ReplaceWith(expression = "headersOf(*namesAndValues)"),
      level = DeprecationLevel.ERROR,
    )
    fun of(vararg namesAndValues: String): Headers {
      return headersOf(*namesAndValues)

    val client = makeClient()
    makeRequest(client)

    // As of OkHttp 5 we now apply the ordering from the OkHttpClient, which defaults to MODERN_TLS
    // Clients might need a changed order, but can at least define a preferred order to override that default.
    val socketOrderedByDefaults =
      handshakeEnabledCipherSuites.sortedBy { ConnectionSpec.MODERN_TLS.cipherSuitesAsString!!.indexOf(it) }

 * [application interceptor][OkHttpClient.interceptors] or as a [OkHttpClient.networkInterceptors].
 *
 * The format of the logs created by this class should not be considered stable and may
 * change slightly between releases. If you need a stable logging format, use your own interceptor.
 */
class HttpLoggingInterceptor
  @JvmOverloads
  constructor(
    private val logger: Logger = Logger.DEFAULT,

    var flushHeaders = flushHeaders
    this.withLock {
      this.hasResponseHeaders = true
      if (outFinished) {
        this.sink.finished = true
        condition.signalAll() // Because doReadTimeout() may have changed.
      }
    }

    // Only DATA frames are subject to flow-control. Transmit the HEADER frame if the connection
    // flow-control window is fully depleted.
    if (!flushHeaders) {
      this.withLock {

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

      streamId: Int,
      windowSizeIncrement: Long,
    )

    /**
     * Called when reading a headers or priority frame. This may be used to change the stream's
     * weight from the default (16) to a new value.
     *
     * @param streamId stream which has a priority change.
     * @param streamDependency the stream ID this stream is dependent on.
     * @param weight relative proportion of priority in `[1..256]`.

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