*
   * The iterator supports [MutableIterator.remove]. Removing a URL from the iterator evicts the
   * corresponding response from the cache. Use this to evict selected responses.
   */
  @Throws(IOException::class)
  fun urls(): MutableIterator<String> {
    return object : MutableIterator<String> {
      private val delegate: MutableIterator<DiskLruCache.Snapshot> = cache.snapshots()

        delegate.register(name, configurationAction)

    override fun register(name: String): NamedDomainObjectProvider<T> =
        delegate.register(name)

    override fun iterator(): MutableIterator<T> =
        delegate.iterator()

    override fun getNamer(): Namer<T> =
        delegate.namer

    override fun getRules(): MutableList<Rule> =
        delegate.rules

        delegate.replace(name)

    override fun <T : Task> replace(name: String, type: Class<T>): T =
        delegate.replace(name, type)

    override fun iterator(): MutableIterator<Task> =
        delegate.iterator()

    override fun named(name: String): TaskProvider<Task> =
        delegate.named(name)

   * to do so leaks open files!
   */
  @Synchronized
  @Throws(IOException::class)
  fun snapshots(): MutableIterator<Snapshot> {
    initialize()
    return object : MutableIterator<Snapshot> {
      /** Iterate a copy of the entries to defend against concurrent modification errors. */
      private val delegate = ArrayList(lruEntries.values).iterator()

  }

  @Test
  fun cache() {
    val cache = Cache(File("/cache/"), Integer.MAX_VALUE.toLong())
    cache.initialize()
    cache.delete()
    cache.evictAll()
    val urls: MutableIterator<String> = cache.urls()
    val writeAbortCount: Int = cache.writeAbortCount()
    val writeSuccessCount: Int = cache.writeSuccessCount()
    val size: Long = cache.size()
    val maxSize: Long = cache.maxSize()