case CrudMode.CREATE:
            return OptionalEntity.of(new PathMapping()).map(entity -> {
                entity.setCreatedBy(username);
                entity.setCreatedTime(currentTime);
                return entity;
            });
        case CrudMode.EDIT:
            if (form instanceof EditForm) {

            return get(FessEnv.lasta_di_SMART_DEPLOY_MODE);
        }

        public String getDevelopmentHere() {
            return get(FessEnv.DEVELOPMENT_HERE);
        }

        public boolean isDevelopmentHere() {
            return is(FessEnv.DEVELOPMENT_HERE);
        }

        public String getEnvironmentTitle() {
            return get(FessEnv.ENVIRONMENT_TITLE);
        }

        case 0:
          return (k == 0) ? 1 : 0;
        case 1:
          return 1;
        case -1:
          return ((k & 1) == 0) ? 1 : -1;
        case 2:
          return (k < Long.SIZE) ? 1L << k : 0;
        case -2:
          if (k < Long.SIZE) {
            return ((k & 1) == 0) ? 1L << k : -(1L << k);
          } else {
            return 0;
          }
        default:

    @Override
    protected Set<T> delegate() {
      return backingSet;
    }

    @Override
    public boolean equals(@Nullable Object object) {
      return standardEquals(object);
    }

    @Override
    public int hashCode() {
      return standardHashCode();
    }

    @Override
    public boolean addAll(Collection<? extends T> collection) {
      return standardAddAll(collection);
    }

    @Override

    }

    /**
     * Returns the query string.
     * @return The query string.
     */
    public String getQueryString() {
        return q;
    }

    /**
     * Returns the filter query string.
     * @return The filter query string.
     */
    public String getFilterQueryString() {
        return fq;
    }

        }).createPageNumberList());

        return fileAuthenticationList;
    }

    /**
     * Retrieves a specific file authentication configuration by its ID.
     *
     * @param id the unique identifier of the file authentication configuration
     * @return an OptionalEntity containing the file authentication if found, empty otherwise
     */

    return doAssertThrows(expectedThrowable, supplier, /* userPassedSupplier= */ true);
  }

  @CanIgnoreReturnValue
  static <T extends Throwable> T assertThrows(
      Class<T> expectedThrowable, ThrowingRunnable runnable) {
    return doAssertThrows(
        expectedThrowable,
        () -> {
          runnable.run();
          return null;
        },

     *
     * @param extension the file extension to look up (without the dot)
     * @return the MIME type for the extension, or "application/octet-stream" if not found
     * @throws IOException if there is an error processing the MIME mappings
     */
    public String getMimeType(final String extension) throws IOException {
        return getMimeType(extension, "application/octet-stream");
    }

    /**

public interface Source {
    /**
     * Provides access to the file backing this source, if available.
     * Not all sources are backed by files - for example, in-memory sources
     * or database-backed sources will return null.
     *
     * @return the underlying {@code Path} if this source is file-backed,
     *         or {@code null} if this source has no associated file
     */
    @Nullable
    Path getPath();

    /**

            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        @SuppressWarnings("unchecked")
        final Pair<T1, T2> other = (Pair<T1, T2>) obj;
        if (first == null) {
            if (other.first != null) {
                return false;
            }