}
        } catch (final Exception e) {
            logger.warn("Failed to initialize TikaExtractor.", e);
        }
    }

    /**
     * Processes and normalizes a document title.
     * Applies text normalization using configured space characters and returns
     * a clean title suitable for indexing.
     *

import java.util.Set;

/**
 * Result of an upgrade strategy application.
 * Uses sets of paths to track which POMs were processed, modified, or had errors,
 * avoiding double-counting when multiple strategies affect the same POMs.
 *
 * @param processedPoms the set of POMs that were processed
 * @param modifiedPoms the set of POMs that were modified
 * @param errorPoms the set of POMs that had errors
 */

import org.lastaflute.di.core.SingletonLaContainer;
import org.opensearch.index.query.QueryBuilders;

/**
 * Implementation of IndexUpdateCallback that handles file list index updates with concurrent processing.
 * This callback processes file events (create, modify, delete) and manages document indexing and deletion
 * operations in the search engine. It supports recursive crawling with configurable depth and access count limits.
 *

            this.reader = reader;
        }

        /**
         * Executes the text processing operation on the provided reader.
         *
         * This method reads characters from the reader and processes them according to the following rules:
         * - ISO control characters and space characters are treated as spaces.
         * - Alphanumeric characters (0-9, A-Z, a-z) are appended to the buffer.

                    Set.of(pom1, pom2), // processed
                    Set.of(pom1), // modified
                    Set.of() // errors
                    );

            assertTrue(result.success(), "Result should be successful when no errors");
            assertEquals(2, result.processedCount(), "Should have 2 processed POMs");
            assertEquals(1, result.modifiedCount(), "Should have 1 modified POM");

* Others...

## Replication - Processes and Memory { #replication-processes-and-memory }

With a FastAPI application, using a server program like the `fastapi` command that runs Uvicorn, running it once in **one process** can serve multiple clients concurrently.

But in many cases, you will want to run several worker processes at the same time.

### Multiple Processes - Workers { #multiple-processes-workers }

            processDefault(objs);
            break;
        }
    }

    /**
     * Processes default log events (no specific handling).
     *
     * @param objs the log objects
     */
    protected void processDefault(final Object... objs) {
    }

    /**
     * Processes system error log events.
     *
     * @param objs the log objects (should contain a Throwable)
     */

  private final ByteBuffer buffer;

  /** Number of bytes to be filled before process() invocation(s). */
  private final int bufferSize;

  /** Number of bytes processed per process() invocation. */
  private final int chunkSize;

  /**
   * Constructor for use by subclasses. This hasher instance will process chunks of the specified
   * size.
   *

import org.codelibs.fess.util.JobProcess;

import jakarta.annotation.PreDestroy;

/**
 * Helper class for managing system processes in Fess.
 * This class provides functionality to start, stop, and manage external processes
 * such as crawler processes, with proper resource cleanup and lifecycle management.
 */
public class ProcessHelper {
    /** Logger instance for this class */

                logger.debug("Base: {} File: {} DocId: {}", b, s, id);
            }
            return id;
        }

        /**
         * Gets the count of processed files.
         *
         * @return the number of files processed
         */
        public long getCount() {
            if (!deletedFileList.isEmpty()) {
                deleteFiles();
            }
            return count;