}
    }

    // Test to verify the logger field is properly initialized
    public void test_loggerFieldInitialization() throws Exception {
        // Use reflection to access the private logger field
        Field loggerField = FessCurtainFinallyHook.class.getDeclaredField("logger");
        loggerField.setAccessible(true);

        Object logger = loggerField.get(null); // static field

          return 0;
        }
      };

  // We use a holder class to delay initialization: https://github.com/google/guava/issues/6566
  private static final class LoggerHolder {
    static final Logger logger = Logger.getLogger(CacheBuilder.class.getName());
  }

  static final int UNSET_INT = -1;

  boolean strictParsing = true;

  int initialCapacity = UNSET_INT;
  int concurrencyLevel = UNSET_INT;

 *   <li>Old document deletion after successful crawling</li>
 *   <li>Crawling execution monitoring and timing</li>
 * </ul>
 */
public class DataIndexHelper {

    /** Logger instance for this class */
    private static final Logger logger = LogManager.getLogger(DataIndexHelper.class);

    /** Parameter key for controlling deletion of old documents */
    private static final String DELETE_OLD_DOCS = "delete_old_docs";

                            if (logger.isDebugEnabled()) {
                                logger.debug("Authentication is failed.");
                            }
                            return null;
                        }

                        final List<String> errors = auth.getErrors();
                        if (!errors.isEmpty()) {

 * Groups define user permissions and access controls for search and administrative functions.
 */
public class ApiAdminGroupAction extends FessApiAdminAction {

    private static final Logger logger = LogManager.getLogger(ApiAdminGroupAction.class);

    // ===================================================================================

    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initialize {}", this.getClass().getSimpleName());
        }
        final Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
        cal.set(2027, 3 - 1, 1); // EOL Date
        eolTime = cal.getTimeInMillis();
        if (isEoled()) {

    }

    public void test_rewrite_multiple_logger_names() {
        String[] loggerNames = { "test.logger", "another.logger", "third.logger" };
        ErrorToWarnRewritePolicy policy = new ErrorToWarnRewritePolicy(loggerNames);

        LogEvent event1 = Log4jLogEvent.newBuilder()
                .setLoggerName("test.logger.sub")
                .setLevel(Level.ERROR)
                .setMessage(new SimpleMessage("test message 1"))

            if (!allowEmptyGroupAndRole(ldapUser)) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Login failed. No permissions. {}", context);
                }
                return OptionalEntity.empty();
            }
            if (logger.isDebugEnabled()) {
                logger.debug("Logged in. {}", context);
            }
            return OptionalEntity.of(ldapUser);

            }, OptionalThing.empty());
            response.flushBuffer();
            if (logger.isDebugEnabled()) {
                logger.debug("Loaded {} docs", count);
            }
        } catch (final InvalidQueryException | ResultOffsetExceededException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to process a scroll request.", e);
            }

          if (!buffer.isProbablyUtf8()) {
            logger.log("")
            logger.log("<-- END HTTP (${totalMs}ms, binary ${buffer.size}-byte body omitted)")
            return response
          }

          if (contentLength != 0L) {
            logger.log("")
            logger.log(buffer.clone().readString(charset))
          }

          logger.log(
            buildString {