unfiltered.put("three", 3);
    unfiltered.put("four", 4);
    assertEquals(ImmutableMap.of("two", 2, "three", 3, "four", 4), unfiltered);
    assertEquals(ImmutableMap.of("three", 3, "four", 4), filtered);

    unfiltered.remove("three");
    assertEquals(ImmutableMap.of("two", 2, "four", 4), unfiltered);
    assertEquals(ImmutableMap.of("four", 4), filtered);

    unfiltered.clear();
    assertEquals(ImmutableMap.of(), unfiltered);

    if (oldValue == null) {
      table.put(row, column, value);
    } else {
      V newValue = mergeFunction.apply(oldValue, value);
      if (newValue == null) {
        table.remove(row, column);
      } else {
        table.put(row, column, newValue);
      }
    }
  }

  private TableCollectors() {}

                    return window < currentWindow - 2; // Keep current and previous window
                } catch (NumberFormatException e) {
                    return true; // Remove invalid entries
                }
            }
            return true;
        });
    }

    private void addMdcContext(Map<String, Object> context) {
        // Add MDC context efficiently

            RequestOptionCall<IndexRequestBuilder> entityCall) {
        return doBatchDelete(new BulkList<>(list, call, entityCall), null);
    }

    // #pending create, modify, remove

            RequestOptionCall<IndexRequestBuilder> entityCall) {
        return doBatchDelete(new BulkList<>(list, call, entityCall), null);
    }

    // #pending create, modify, remove

		// it's the last part of the path. e.g. /bucket/api/<bucket-name>
		bucketIdx := strings.LastIndex(pathComponents, "/")
		buckets = append(buckets, pathComponents[bucketIdx+1:])
		// remove bucket from pathComponents as it is dyanamic and
		// hence not included in the collector path.
		pathComponents = pathComponents[:bucketIdx]
	}

	innerHandler := h.handle(pathComponents, isListingRequest, buckets)

)

// Multipart objectAPIHandlers

// NewMultipartUploadHandler - New multipart upload.
// Notice: The S3 client can send secret keys in headers for encryption related jobs,
// the handler should ensure to remove these keys before sending them to the object layer.
// Currently these keys are:
//   - X-Amz-Server-Side-Encryption-Customer-Key
//   - X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key

        }
    }
    
    public void releaseLease(Smb2LeaseKey key) {
        lock.writeLock().lock();
        try {
            LeaseEntry entry = leases.remove(key);
            if (entry != null) {
                pathToLease.remove(entry.path);
            }
        } finally {
            lock.writeLock().unlock();
        }
    }
    
    private void flushCachedWrites(String path) {

                        remove(i);
                    } else if (get(i + 1).getType() == LIST_ITEM) {
                        Item item = ((ListItem) get(i + 1)).get(0);
                        if (item.getType() == COMBINATION_ITEM || item.getType() == STRING_ITEM) {
                            remove(i);
                        }
                    }
                }

        }
        split(fessConfig.getQueryAdditionalAnalyzedFields(), ",")
                .of(stream -> stream.map(String::trim).filter(StringUtil::isNotBlank).forEach(s -> notAnalyzedFieldSet.remove(s)));
        split(fessConfig.getQueryAdditionalDefaultFields(), ",").of(stream -> stream.filter(StringUtil::isNotBlank).map(s -> {
            final Pair<String, Float> pair = new Pair<>();