List<String> actual = Lists.newArrayList(filtered);
    assertEquals(expected, actual);
  }

  public void testFilterMatchAll() {
    Iterator<String> unfiltered = Lists.newArrayList("foo", "bar").iterator();
    Iterator<String> filtered = filter(unfiltered, Predicates.alwaysTrue());
    List<String> expected = Lists.newArrayList("foo", "bar");
    List<String> actual = Lists.newArrayList(filtered);

    List<String> actual = Lists.newArrayList(filtered);
    assertEquals(expected, actual);
  }

  public void testFilterMatchAll() {
    Iterator<String> unfiltered = Lists.newArrayList("foo", "bar").iterator();
    Iterator<String> filtered = filter(unfiltered, Predicates.alwaysTrue());
    List<String> expected = Lists.newArrayList("foo", "bar");
    List<String> actual = Lists.newArrayList(filtered);

   * iterated are the individual lists created, and these are not retained after iteration.
   *
   * @param sets the sets to choose elements from, in the order that the elements chosen from those
   *     sets should appear in the resulting lists
   * @param <B> any common base class shared by all axes (often just {@link Object})

   * iterator containing two inner lists of three elements each, all in the original order.
   *
   * <p>The returned lists implement {@link java.util.RandomAccess}.
   *
   * @param iterator the iterator to return a partitioned view of
   * @param size the desired size of each partition
   * @return an iterator of immutable lists containing the elements of {@code iterator} divided into

		UpdateDate: d.UpdateDate,
	}, nil
}

// ListPolicies - lists all canned policies.
func (sys *IAMSys) ListPolicies(ctx context.Context, bucketName string) (map[string]policy.Policy, error) {
	if !sys.Initialized() {
		return nil, errServerNotInitialized
	}

	return sys.store.ListPolicies(ctx, bucketName)
}

// ListPolicyDocs - lists all canned policy docs.

}

// ListGroups - lists groups. Since this is not going to be a frequent
// operation, we fetch this info from storage, and refresh the cache as well.
func (store *IAMStoreSys) ListGroups(ctx context.Context) (res []string, err error) {
	cache := store.lock()
	defer store.unlock()

	return store.updateGroups(ctx, cache)
}

// listGroups - lists groups - fetch groups from cache

   * removeAll}, and {@code replaceValues} methods return {@code RandomAccess} lists if the factory
   * does. However, the multimap's {@code get} method returns instances of a different class than
   * does {@code factory.get()}.
   *
   * <p>The multimap is serializable if {@code map}, {@code factory}, the lists generated by {@code
   * factory}, and the multimap contents are all serializable.
   *

   * removeAll}, and {@code replaceValues} methods return {@code RandomAccess} lists if the factory
   * does. However, the multimap's {@code get} method returns instances of a different class than
   * does {@code factory.get()}.
   *
   * <p>The multimap is serializable if {@code map}, {@code factory}, the lists generated by {@code
   * factory}, and the multimap contents are all serializable.
   *

				"application/prs.plucker",
				"application/qsig",
				"application/reginfo+xml",
				"application/relax-ng-compact-syntax",
				"application/remote-printing",
				"application/resource-lists+xml",
				"application/resource-lists-diff+xml",
				"application/riscos",
				"application/rlmi+xml",
				"application/rls-services+xml",
				"application/rsd+xml",
				"application/rss+xml",
				"application/rtf",

				}
			}
			return FileInfo{}, errFileNotFound
		}

		return FileInfo{}, errFileVersionNotFound
	}
	fi.NumVersions = nonFreeVersions
	return fi, err
}

// ListVersions lists current versions, and current deleted
// versions returns error for unexpected entries.
// showPendingDeletes is set to true if ListVersions needs to list objects marked deleted
// but waiting to be replicated