### Auto-Generated Files

Never edit these files manually (marked with `@author FreeGen`):
- `FessLabels.java`
- `FessMessages.java`

Always regenerate them using `mvn dbflute:freegen`

## Complete Example: Adding Swedish (sv)

```bash
# 1. Navigate to resources directory
cd src/main/resources

# 2. Copy base files
cp fess_label_en.properties fess_label_sv.properties

     *
     * @return the access mask
     */
    int getAccessMask();

    /**
     * Returns the 'Apply To' text for inheritance of ACEs on
     * directories such as 'This folder, subfolder and files'. For
     * files the text is always 'This object only'.
     *
     * @return descriptive text for the ACE scope
     */
    String getApplyToText();

    /**

     * Removes thumbnail files that have exceeded the configured expiration time.
     *
     * @return a string containing the execution result with the number of deleted files or error message
     */
    public String execute() {
        try {
            final long count = ComponentUtil.getThumbnailManager().purge(getExpiry());
            return "Deleted " + count + " thumbnail files.";
        } catch (final Exception e) {

        when(mockFile2.createTime()).thenReturn(600L);
        when(mockFile2.lastAccess()).thenReturn(900L);

        // Update cache
        List<SmbFile> files = Arrays.asList(mockFile1, mockFile2);
        directoryLeaseManager.updateDirectoryCache(directoryPath, files);

        // Verify cache entry was updated (test the cache content directly)
        DirectoryCacheEntry cacheEntry = directoryLeaseManager.getCacheEntry(directoryPath);

         */
        protected final long expiry;

        /**
         * Count of processed files.
         */
        protected long count;

        /**
         * Maximum number of files to purge in a single operation.
         */
        protected final int maxPurgeSize;

        /**
         * List of files marked for deletion.
         */

        // Clean up temp directory
        if (tempDir != null && Files.exists(tempDir)) {
            Files.walk(tempDir)
                    .sorted((a, b) -> b.compareTo(a)) // Delete files before directories
                    .forEach(path -> {
                        try {
                            Files.delete(path);
                        } catch (IOException e) {

**Solution**:
- Split large files into smaller batches (e.g., 10,000 docs per file)
- Increase timeout in `system.properties`:
  ```properties
  crawler.document.request.timeout=600000
  ```
- Use asynchronous import via Admin UI instead of API

#### Issue: Special characters in documents not displaying correctly

**Solution**:
- Ensure source files are UTF-8 encoded
- Check `fess_config.properties`:

import org.codelibs.fess.dict.DictionaryItem;

import jakarta.annotation.PostConstruct;

/**
 * A dictionary creator for stemmer override files.
 * This class is responsible for creating {@link StemmerOverrideFile} instances
 * from files that match the pattern "stemmer_override.*\\.txt".
 */
public class StemmerOverrideCreator extends DictionaryCreator {

            lastLoadedTime = now;
        }
        return dataStoreNames;
    }

    /**
     * Loads the list of available data store names by scanning plugin JAR files.
     * This method searches for 'fess_ds++.xml' configuration files within JAR files
     * in the data store plugin directory and extracts component class names.
     *
     * <p>The method uses secure XML parsing features to prevent XXE attacks and

     * @throws Exception
     */
    public void testToJarFilePath() throws Exception {
        final File f = new File("/Program Files/foo.jar");
        final URL url = new URL("jar:" + f.toURI().toURL() + "!/");
        final String root = new File("/").getCanonicalPath();
        assertEquals(root + "Program Files" + File.separator + "foo.jar", JarFileUtil.toJarFilePath(url));
    }

    /**
     * @throws Exception
     */