private var removeSnapshot: Snapshot? = null

      override fun hasNext(): Boolean {
        if (nextSnapshot != null) return true

        synchronized(this@DiskLruCache) {
          // If the cache is closed, truncate the iterator.
          if (closed) return false

          while (delegate.hasNext()) {
            nextSnapshot = delegate.next()?.snapshot() ?: continue
            return true

      } finally {
        in = null;
      }
    }
  }

  /** Closes the current input stream and opens the next one, if any. */
  private void advance() throws IOException {
    close();
    if (it.hasNext()) {
      in = it.next().openStream();
    }
  }

  @Override
  public int available() throws IOException {
    if (in == null) {
      return 0;
    }
    return in.available();
  }

      private var nextUrl: String? = null
      private var canRemove = false

      override fun hasNext(): Boolean {
        if (nextUrl != null) return true

        canRemove = false // Prevent delegate.remove() on the wrong item!
        while (delegate.hasNext()) {
          try {
            delegate.next().use { snapshot ->
              val metadata = snapshot.getSource(ENTRY_METADATA).buffer()

    Predicate<? super Entry<K, V>> entryPredicate = multimap.entryPredicate();
    for (Iterator<Entry<K, V>> unfilteredItr = multimap.unfiltered().entries().iterator();
        unfilteredItr.hasNext(); ) {
      Entry<K, V> entry = unfilteredItr.next();
      if (entryPredicate.apply(entry) && Objects.equal(entry.getValue(), o)) {
        unfilteredItr.remove();
        return true;
      }
    }

            }
          };
    }
    Iterator<Entry<K, V>> entryItr = navigableMap.entrySet().iterator();
    Entry<K, V> prevEntry = entryItr.next();
    while (entryItr.hasNext()) {
      Entry<K, V> nextEntry = entryItr.next();
      assertTrue(comparator.compare(prevEntry.getKey(), nextEntry.getKey()) < 0);
      prevEntry = nextEntry;
    }
  }

  public void testClear() {
    getMap().clear();
    assertTrue("After clear(), a map should be empty.", getMap().isEmpty());
    assertEquals(0, getMap().size());
    assertFalse(getMap().entrySet().iterator().hasNext());
  }

  @MapFeature.Require({FAILS_FAST_ON_CONCURRENT_MODIFICATION, SUPPORTS_REMOVE})
  @CollectionSize.Require(SEVERAL)
  public void testClearConcurrentWithEntrySetIteration() {
    assertThrows(

                    return false;
                }
                return ff.accept((SmbFile) resource);
            }
        }) ) {

            List<String> list = new ArrayList<>();
            while ( it.hasNext() ) {
                try ( SmbResource n = it.next() ) {
                    list.add(n.getName());
                }
            }
            return list.toArray(new String[list.size()]);
        }

                    public void remove() {
                      iterator.remove();
                    }

                    @Override
                    public boolean hasNext() {
                      return iterator.hasNext();
                    }

                    @Override
                    public Entry<String, String> next() {
                      return transform(iterator.next());

      @Override
      public boolean hasNext() {
        if (current == null) {
          return false;
        } else if (range.tooHigh(current.getElement())) {
          current = null;
          return false;
        } else {
          return true;
        }
      }

      @Override
      public Entry<E> next() {
        if (!hasNext()) {
          throw new NoSuchElementException();

   *
   * @param failedConnection an optional connection that was resulted in a failure. If the failure
   *     is recoverable, the connection's route may be recovered for the retry.
   */
  fun hasNext(failedConnection: RealConnection? = null): Boolean

  /**
   * Returns true if the host and port are unchanged from when this was created. This is used to