import okhttp3.internal.toImmutableList

/**
 * Selects routes to connect to an origin server. Each connection requires a choice of proxy server,
 * IP address, and TLS mode. Connections may also be recycled.
 */
class RouteSelector(
  private val address: Address,
  private val routeDatabase: RouteDatabase,
  private val connectionUser: ConnectionUser,
  private val fastFallback: Boolean,
) {
  // State for negotiating the next proxy to use.

      selection.next()
    }
    assertThat(routeSelector.hasNext()).isFalse()
    assertFailsWith<NoSuchElementException> {
      routeSelector.next()
    }
  }

  @Test fun singleRouteReturnsFailedRoute() {
    val address = factory.newAddress()
    var routeSelector = newRouteSelector(address)
    assertThat(routeSelector.hasNext()).isTrue()
    dns[uriHost] = dns.allocate(1)

  override val address: Address,
  private val routeDatabase: RouteDatabase,
  private val connectionUser: ConnectionUser,
) : RoutePlanner {
  private var routeSelection: RouteSelector.Selection? = null
  private var routeSelector: RouteSelector? = null
  private var nextRouteToTry: Route? = null

  override val deferredPlans = ArrayDeque<Plan>()

  override fun isCanceled(): Boolean = connectionUser.isCanceled()

HSPLokhttp3/internal/connection/RouteSelector$Selection;-><init>(Ljava/util/List;)V
HSPLokhttp3/internal/connection/RouteSelector$Selection;->hasNext()Z
HSPLokhttp3/internal/connection/RouteSelector$Selection;->next()Lokhttp3/Route;
HSPLokhttp3/internal/connection/RouteSelector;-><init>(Lokhttp3/Address;Lokhttp3/internal/connection/RouteDatabase;Lokhttp3/Call;ZLokhttp3/EventListener;)V

    connection coalescing (introduced in OkHttp 3.7.0) and stale connection
    recovery could interact to cause a `NoSuchElementException` crash in the
    `RouteSelector`.


## Version 3.8.0

_2017-05-13_


 *  **OkHttp now uses `@Nullable` to annotate all possibly-null values.** We've
    added a compile-time dependency on the JSR 305 annotations. This is a