out.close();
        }

        // Set maxSize smaller than file size (should throw exception)
        FileUtil.readBytes(file, 512);
    }

    /**
     * Test readBytes with custom maxSize of zero
     *
     * @throws Exception
     */
    @Test(expected = IORuntimeException.class)
    public void testReadBytes_CustomMaxSize_Zero() throws Exception {
        final File file = tempFolder.newFile("any.txt");

- **Composite**: NormalizerChain, ReadingConverterChain
- **Strategy**: Normalizer, ReadingConverter, ContentsParser
- **Deferred/Promise**: Async operations

### Index Alias Strategy

Zero-downtime index updates using dual aliases:

```
Index Naming: {baseIndex}.{timestamp}
Example:      my-suggest.20250123120000

Aliases:
├── Search Alias: {baseIndex}          (read operations)

labels.searchlog_log_type_favorite=Favorite Log
labels.searchlog_log_type_user_info=User Log
labels.searchlog_log_type_search_keyword=Keyword Count
labels.searchlog_log_type_search_zerohit=Zero Hit Count
labels.searchlog_log_type_search_zeroclick=Zero Click Count
labels.searchlog_log_type_search_count_hour=Search Count/Hour
labels.searchlog_log_type_search_count_day=Search Count/Day
labels.searchlog_log_type_search_user_hour=User Count/Hour

labels.searchlog_log_type_user_info=Log utente
labels.searchlog_log_type_search_keyword=Numero di parole chiave
labels.searchlog_log_type_search_zerohit=Numero di zero risultati
labels.searchlog_log_type_search_zeroclick=Numero di zero clic
labels.searchlog_log_type_search_count_hour=Numero di ricerche/ora
labels.searchlog_log_type_search_count_day=Numero di ricerche/giorno

labels.searchlog_log_type_user_info=Log do usuário
labels.searchlog_log_type_search_keyword=Número de palavras-chave
labels.searchlog_log_type_search_zerohit=Número de zero resultados
labels.searchlog_log_type_search_zeroclick=Número de zero cliques
labels.searchlog_log_type_search_count_hour=Número de pesquisas/hora
labels.searchlog_log_type_search_count_day=Número de pesquisas/dia

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final int rankConstant = fessConfig.getRankFusionRankConstantAsInteger();
        // Guard against division by zero (should not happen due to caller checks, but defensive)
        if (searchers.length == 0) {
            logger.warn("searchWithMultipleSearchers called with empty searcher array");

        assertNotNull(processor2.getResponse());
        assertNotNull(processor3.getResponse());
    }

    @Test
    public void testRequestProcessorWithZeroThreshold() {
        // Test RequestProcessor with zero threshold
        CurlRequest.RequestProcessor processor = new CurlRequest.RequestProcessor("UTF-8", 0);
        assertNotNull(processor.getResponse());
    }

    @Test

labels.searchlog_log_type_favorite=Favorite Log
labels.searchlog_log_type_user_info=User Log
labels.searchlog_log_type_search_keyword=Keyword Count
labels.searchlog_log_type_search_zerohit=Zero Hit Count
labels.searchlog_log_type_search_zeroclick=Zero Click Count
labels.searchlog_log_type_search_count_hour=Search Count/Hour
labels.searchlog_log_type_search_count_day=Search Count/Day
labels.searchlog_log_type_search_user_hour=User Count/Hour

    /** The key of the message: Zero Hit Count */
    public static final String LABELS_searchlog_log_type_search_zerohit = "{labels.searchlog_log_type_search_zerohit}";

    /** The key of the message: Zero Click Count */
    public static final String LABELS_searchlog_log_type_search_zeroclick = "{labels.searchlog_log_type_search_zeroclick}";