Castle is great! But it's a large dependency (6.5 MiB) and its security provider feature
    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

import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.suspendCancellableCoroutine
import okhttp3.internal.closeQuietly
import okio.IOException

@ExperimentalCoroutinesApi // resume with a resource cleanup.
suspend fun Call.executeAsync(): Response =
  suspendCancellableCoroutine { continuation ->
    continuation.invokeOnCancellation {
      this.cancel()
    }
    this.enqueue(

import okhttp3.internal.connection.RealConnectionPool
import okhttp3.internal.connection.RealRoutePlanner
import okhttp3.internal.connection.RouteDatabase

/**
 * Manages reuse of HTTP and HTTP/2 connections for reduced network latency. HTTP requests that
 * share the same [Address] may share a [Connection]. This class implements the policy
 * of which connections to keep open for future use.
 *

      (if (isCanceled()) "canceled " else "") +
        (if (forWebSocket) "web socket" else "call") +
        " to " + redactedUrl()
    )
  }

  internal fun redactedUrl(): String = originalRequest.url.redact()

  inner class AsyncCall(
    private val responseCallback: Callback,
  ) : Runnable {
    @Volatile var callsPerHost = AtomicInteger(0)
      private set

    if (idleDurationNs >= IDLE_CONNECTION_HEALTHY_NS && doExtensiveChecks) {
      return socket.isHealthy(source)
    }

    return true
  }

  /** Refuse incoming streams. */
  @Throws(IOException::class)
  override fun onStream(stream: Http2Stream) {
    stream.close(ErrorCode.REFUSED_STREAM, null)
  }

    val baseWithPasswordOnly = parse("http://password@host/a/b#fragment")
    assertThat(baseWithPasswordAndUsername.redact()).isEqualTo("http://host/...")
    assertThat(baseWithUsernameOnly.redact()).isEqualTo("http://host/...")
    assertThat(baseWithPasswordOnly.redact()).isEqualTo("http://host/...")
  }

  @Test
  fun resolveNoScheme() {
    val base = parse("http://host/a/b")

import kotlinx.coroutines.suspendCancellableCoroutine
import okhttp3.Call
import okhttp3.Callback
import okhttp3.Response
import okhttp3.internal.closeQuietly
import okio.IOException

@ExperimentalCoroutinesApi // resume with a resource cleanup.
suspend fun Call.executeAsync(): Response =
  suspendCancellableCoroutine { continuation ->
    continuation.invokeOnCancellation {
      this.cancel()
    }
    this.enqueue(

the potential to leak sensitive information such as "Authorization" or "Cookie" headers and the
contents of request and response bodies. This data should only be logged in a controlled way or in
a non-production environment.

You can redact headers that may contain sensitive information by calling `redactHeader()`.
```java
logging.redactHeader("Authorization");
logging.redactHeader("Cookie");
```

Download
--------

```kotlin

These are the primary classes involved with establishing, sharing, and terminating connections:

 * **RealConnectionPool** manages reuse of HTTP and HTTP/2 connections for reduced latency. Every OkHttpClient has one, and its lifetime spans the lifetime of the OkHttpClient.

    if (plan is FailedPlan) return plan.result

    // Connect TCP asynchronously.
    tcpConnectsInFlight += plan
    val taskName = "$okHttpName connect ${routePlanner.address.url.redact()}"
    taskRunner.newQueue().schedule(
      object : Task(taskName) {
        override fun runOnce(): Long {
          val connectResult =
            try {
              plan.connectTcp()