try {
                final Instant instant = Instant.from(DateTimeFormatter.ISO_INSTANT.parse(value.toString()));
                return LocalDateTime.ofInstant(instant, ZoneId.systemDefault());
            } catch (final DateTimeParseException e) {
                logger.debug("Invalid date format: {}", value, e);
            }
        }
        return DfTypeUtil.toLocalDateTime(value);
    }

            final FileConfigService fileConfigService = ComponentUtil.getComponent(FileConfigService.class);
            try {
                fileConfig = fileConfigService.getFileConfig(getFileConfigId()).get();
            } catch (final Exception e) {
                logger.warn("File Config {} does not exist.", getFileConfigId(), e);
            }
        }
        return fileConfig;
    }

    @Override
    public String toString() {

                    .map(e -> new Pair<>(e.getKey(), (String) e.getValue()))
                    .collect(Collectors.toMap(Pair::getFirst, Pair::getSecond)));
            return result;
        } catch (InstantiationException | IllegalAccessException e) {
            final String msg = "Cannot create a new instance: " + entityType.getName();
            throw new IllegalBehaviorStateException(msg, e);
        }
    }

            try {
                boostDocumentRuleService.store(entity);
                saveInfo(messages -> messages.addSuccessCrudCreateCrudTable(GLOBAL));
            } catch (final Exception e) {
                logger.warn("Failed to process a request.", e);
                throwValidationError(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)),

        try {
            return accessTokenService.getPermissions(request)
                    .map(permissions -> fessConfig.isApiAdminAccessAllowed(permissions))
                    .orElse(false);
        } catch (final InvalidAccessTokenException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Invalid access token.", e);
            }
            return false;
        }
    }

        try {
            result.getRelevantDocIds().add("newDoc");
            fail("DocIds list should be immutable");
        } catch (UnsupportedOperationException e) {
            // Expected
        }
    }

    @Test
    public void test_indexesAreImmutable() {
        List<String> docIds = Arrays.asList("doc1", "doc2");

        try {
            searchEngineClient.deleteByQuery(fessConfig.getIndexDocumentUpdateIndex(), queryBuilder);

        } catch (final Exception e) {
            logger.error("Could not delete expired documents: {}", queryBuilder, e);
            resultBuf.append(e.getMessage()).append("\n");
        }

        return resultBuf.toString();
    }

                        writer.write(metadata);
                    }
                });
            } catch (final SsoMessageException e) {
                throw e;
            } catch (final Exception e) {
                throw new SsoMessageException(

                Files.copy(upgradedPropertiesJson, to.getAsFile().get().toPath(), StandardCopyOption.REPLACE_EXISTING);
            } else {
                to.getAsFile().get().delete();
            }
        } catch (IOException e) {
            throw UncheckedException.throwAsUncheckedException(e);
        }
    }

        // Test throwing and catching the exception
        String expectedMessage = "Expected error";
        try {
            throw new FessSystemException(expectedMessage);
        } catch (FessSystemException e) {
            assertEquals(expectedMessage, e.getMessage());
            assertNull(e.getCause());
        }
    }

    @Test
    public void test_throwAndCatchWithCause() {