nanos: Long,
    )

    fun <T> decorate(queue: BlockingQueue<T>): BlockingQueue<T>

    fun execute(
      taskRunner: TaskRunner,
      runnable: Runnable,
    )
  }

  class RealBackend(
    threadFactory: ThreadFactory,
  ) : Backend {
    val executor =
      ThreadPoolExecutor(
        // corePoolSize:
        0,
        // maximumPoolSize:
        Int.MAX_VALUE,

import okhttp3.FakeRoutePlanner
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.TestUtil.awaitGarbageCollection
import okhttp3.internal.concurrent.TaskRunner
import okhttp3.internal.concurrent.TaskRunner.RealBackend
import okhttp3.internal.concurrent.withLock
import okhttp3.internal.http2.MockHttp2Peer
import org.junit.jupiter.api.AfterEach
import org.junit.jupiter.api.Test

class ConnectionPoolTest {

      testClient = client
    }
    return client
  }

  private fun initialClientBuilder(): OkHttpClient.Builder =
    if (isLoom()) {
      val backend = TaskRunner.RealBackend(loomThreadFactory())
      val taskRunner = TaskRunner(backend)

      OkHttpClient
        .Builder()
        .connectionPool(
          buildConnectionPool(