if (delegate != null) return readFieldOrNull(delegate, fieldType, fieldName)
  }

  return null
}

@JvmField
internal val assertionsEnabled: Boolean = OkHttpClient::class.java.desiredAssertionStatus()

/** Dispatcher is not [Lockable] because we don't want that type in our public API. */
internal fun Dispatcher.assertLockNotHeld() {
  if (assertionsEnabled && Thread.holdsLock(this)) {