assertThrows(NullPointerException.class, () -> new ShareEnumIterator(null, entries.iterator(), null));
        }

        @Test
        @DisplayName("Empty iterator: hasNext() is false and next() returns null")
        void emptyIterator_behavesAsEmpty() throws Exception {
            SmbFile parent = newParent();
            ShareEnumIterator it = new ShareEnumIterator(parent, Collections.<FileEntry> emptyList().iterator(), null);

            throw e;
        } catch (final IOException ioe) {
            log.debug("doNetShareEnum failed", ioe);
            throw new SmbException(u.toString(), ioe);
        }
        return new ShareEnumIterator(parent, set.iterator(), ff);
    }

    @SuppressWarnings("resource")
    static CloseableIterator<SmbResource> doEnum(final SmbFile parent, String wildcard, int searchAttributes, final ResourceNameFilter fnf,