assertEquals(FessUserTimeZoneProcessProvider.centralTimeZone, providedTimeZone);
        } else {
            // Cannot test due to reflection access limitations
            assertTrue("Cannot access DBFluteSystem fields via reflection", true);
        }
    }

    @Test
    public void test_processDBFluteSystem_setsTimeZoneProvider() {
        // When

  /** Returns the next entry in the access queue. */
  ReferenceEntry<K, V> getNextInAccessQueue();

  /** Sets the next entry in the access queue. */
  void setNextInAccessQueue(ReferenceEntry<K, V> next);

  /** Returns the previous entry in the access queue. */
  ReferenceEntry<K, V> getPreviousInAccessQueue();

  /** Sets the previous entry in the access queue. */

from inline_snapshot import snapshot

oauth2_scheme = OAuth2AuthorizationCodeBearer(
    authorizationUrl="authorize",
    tokenUrl="token",
    auto_error=True,
    scopes={"read": "Read access", "write": "Write access"},
)


async def get_token(token: Annotated[str, Depends(oauth2_scheme)]) -> str:
    return token


app = FastAPI(dependencies=[Depends(get_token)])


@app.get("/")
async def root():

  /** Returns the next entry in the access queue. */
  ReferenceEntry<K, V> getNextInAccessQueue();

  /** Sets the next entry in the access queue. */
  void setNextInAccessQueue(ReferenceEntry<K, V> next);

  /** Returns the previous entry in the access queue. */
  ReferenceEntry<K, V> getPreviousInAccessQueue();

  /** Sets the previous entry in the access queue. */

     * @throws FessSystemException if no access token is available
     */
    public String getServerPath() {
        return getSessionManager().getAttribute(Constants.SEARCH_ENGINE_API_ACCESS_TOKEN, String.class)
                .map(token -> ADMIN_SERVER + token)
                .orElseThrow(() -> new FessSystemException("Cannot create an access token."));
    }

    /**

- Admin GUI for configuration
- REST API for programmatic access
- SSO integration (OIDC, SAML, SPNEGO, Entra ID)
- i18n support (20+ languages)

## Tech Stack

| Component | Technology |
|-----------|------------|
| Web Framework | LastaFlute (MVC framework) |
| DI Container | Lasta Di |
| Data Access | DBFlute (type-safe ORM for OpenSearch) |
| Search Engine | OpenSearch |

      "Access-Control-Allow-Private-Network";

  /** The HTTP {@code Access-Control-Allow-Credentials} header field name. */
  public static final String ACCESS_CONTROL_ALLOW_CREDENTIALS = "Access-Control-Allow-Credentials";

  /** The HTTP {@code Access-Control-Expose-Headers} header field name. */
  public static final String ACCESS_CONTROL_EXPOSE_HEADERS = "Access-Control-Expose-Headers";

    @Test
    public void test_corsHeaderConstants() {
        assertEquals("Access-Control-Allow-Origin", CorsHandler.ACCESS_CONTROL_ALLOW_ORIGIN);
        assertEquals("Access-Control-Allow-Headers", CorsHandler.ACCESS_CONTROL_ALLOW_HEADERS);
        assertEquals("Access-Control-Allow-Methods", CorsHandler.ACCESS_CONTROL_ALLOW_METHODS);
        assertEquals("Access-Control-Allow-Private-Network", CorsHandler.ACCESS_CONTROL_ALLOW_PRIVATE_NETWORK);

        Map<String, List<String>> headers = new HashMap<>();
        headers.put("Accept", Arrays.asList("application/json", "text/html"));
        response.setHeaders(headers);

        String[] acceptValues = response.getHeaderValues("Accept");
        String[] acceptValuesLowercase = response.getHeaderValues("accept"); // Test case insensitive
        String[] missingValues = response.getHeaderValues("Missing-Header");

                } catch (final IOException e) {
                    logger.warn("Failed to access /{}/{}.", index, hit.getId(), e);
                }
                return true;
            });
        } catch (final IOException e) {
            logger.warn("Failed to access /{}.", index, e);
        }
    }

    /**
     * Writes system properties to the ZIP output stream.
     *