return
	}

	// Check for abandoned entries.
	found := make(map[string]struct{}, len(d.Cache))

	// Mark all children recursively
	var mark func(entry dataUsageEntry)
	mark = func(entry dataUsageEntry) {
		for k := range entry.Children {
			found[k] = struct{}{}
			if ch, ok := d.Cache[k]; ok {
				mark(ch)
			}
		}
	}
	found[top] = struct{}{}
	mark(*topE)

  public void testAsMapGet() {
    for (K key : sampleKeys()) {
      List<V> expectedValues = new ArrayList<>();
      for (Entry<K, V> entry : getSampleElements()) {
        if (entry.getKey().equals(key)) {
          expectedValues.add(entry.getValue());
        }
      }

      Collection<V> collection = multimap().asMap().get(key);
      if (expectedValues.isEmpty()) {

            // Create multiple entries
            for (int i = 0; i < 10; i++) {
                DfsReferralDataImpl entry = createInitializedDfsReferralDataImpl();
                String key = "key-" + i;
                entry.setKey(key);
                entry.setCacheMap(cache);
                entry.replaceCache();
            }

            // Verify all entries
            assertEquals(10, cache.size());

        return null;
      }
      int bucket = Hashing.smear(value.hashCode()) & mask;
      for (ImmutableMapEntry<K, V> entry = valueTable[bucket];
          entry != null;
          entry = entry.getNextInValueBucket()) {
        if (value.equals(entry.getValue())) {
          return entry.getKey();
        }
      }
      return null;
    }

    @Override
    ImmutableSet<V> createKeySet() {

            return null;
        }

        for (final Map.Entry<String, SmbAuthentication> entry : authMap.entrySet()) {
            if (logger.isDebugEnabled()) {
                logger.debug("Checking path: {} against entry: {}", path, entry.getKey());
            }
            if (path.startsWith(entry.getKey())) {
                return entry.getValue();
            }
        }
        return null;
    }

        assertEquals(0, bytesRead);
    }

    @Test
    @DisplayName("Test decode with non-aligned next entry offset throws exception")
    void testDecodeNonAlignedNextOffset() {
        byte[] buffer = new byte[100];
        // Write non-aligned next entry offset (not divisible by 4)
        SMBUtil.writeInt4(7, buffer, 0); // 7 is not aligned to 4 bytes

            log.error("Failed to apply name filter", e);
            return false;
        }
    }

    /**
     * Advances to the next file entry in the enumeration.
     *
     * @param last whether this is the last attempt to advance
     * @return the next file entry, or null if no more entries
     * @throws CIFSException if an error occurs during enumeration
     */

        assertNotNull(key);
        LeaseEntry entry = leaseManager.getLease(key);
        assertNotNull(entry);
        assertEquals(requestedState, entry.getLeaseState());
        assertEquals(path, entry.getPath());
        assertEquals(1, entry.getEpoch());
        assertFalse(entry.isBreaking());
    }

    @Test
    @DisplayName("Should reuse existing lease for same path")

                value = resourceName;
            }

            if (value != null) {
                for (final Map.Entry<Pattern, String> entry : passwordMap.entrySet()) {
                    if (entry.getKey().matcher(value).matches()) {
                        return entry.getValue();
                    }
                }
            }
        }

        if (params != null && url != null) {

    assertThrows(NullPointerException.class, () -> getMap().putAll(null));
  }

  private void putAll(Iterable<Entry<K, V>> entries) {
    Map<K, V> map = new LinkedHashMap<>();
    for (Entry<K, V> entry : entries) {
      map.put(entry.getKey(), entry.getValue());
    }
    getMap().putAll(map);
  }

  /**