Map<String, Object> doc = new HashMap<>();
        doc.put("lang", "ja");
        doc.put("title", "タイトル");
        doc.put("title_ja", "既存のタイトル"); // Should not be overwritten
        doc.put("content", "コンテンツ");

        languageHelper.updateDocument(doc);

        assertEquals("ja", doc.get("lang"));
        assertEquals("既存のタイトル", doc.get("title_ja")); // Should remain unchanged

        queryFieldConfig.setNotAnalyzedFields(existingNotAnalyzedFields);

        // Initialize
        queryFieldConfig.init();

        // Verify that existing fields are not overwritten
        assertSame(existingResponseFields, queryFieldConfig.getResponseFields());
        assertSame(existingScrollResponseFields, queryFieldConfig.getScrollResponseFields());

   * need to guard against those conditions, you should employ other file-level synchronization.
   *
   * <p><b>Warning:</b> If {@code to} represents an existing file, that file will be overwritten
   * with the contents of {@code from}. If {@code to} and {@code from} refer to the <i>same</i>
   * file, the contents of that file will be deleted.
   *
   * <p><b>{@link java.nio.file.Path} equivalent:</b> {@link

   * need to guard against those conditions, you should employ other file-level synchronization.
   *
   * <p><b>Warning:</b> If {@code to} represents an existing file, that file will be overwritten
   * with the contents of {@code from}. If {@code to} and {@code from} refer to the <i>same</i>
   * file, the contents of that file will be deleted.
   *
   * <p><b>{@link java.nio.file.Path} equivalent:</b> {@link

- Fixed the bug where `spec.terminationGracePeriodSeconds` of the pod will always be overwritten by the MaxPodGracePeriodSeconds of the soft eviction, you can enable the `AllowOverwriteTerminationGracePeriodSeconds` feature gate, which will restore the previous behavior.  If you do need to set this, please file an issue with the Kubernetes...

        assertFalse(dataMap.containsKey("y.overwrite"));
        assertEquals(1, dataMap.size());
        assertEquals("Y1", dataMap.get("y"));
    }

    /** Case 4: Both baseKey and baseKey.overwrite exist → Overwrite with the value of .overwrite */
    public void test_mergeResponseData_baseAndOverwrite() {
        Map<String, Object> dataMap = new HashMap<>();
        Map<String, Object> responseDataMap = new HashMap<>();

        assertTrue(values[1].startsWith("time:"));
        assertTrue(values[2].startsWith("done:"));

        // CrawlerStatsHelper uses LinkedHashMap which overwrites values with same key
        // Recording the same action twice will overwrite the first one
        assertTrue(values[3].startsWith("same_action:"));
        assertTrue(values[4].startsWith("different_action:"));
    }

        }

        /**
         * Checks if the overwrite option is enabled in the configuration.
         * Returns true if "overwrite" is present in the values.
         *
         * @return true if overwriting is enabled, false otherwise
         */
        public boolean isOverwrite() {
            for (final String value : values) {
                if ("overwrite".equalsIgnoreCase(value)) {
                    return true;

        assertFalse(fieldConfigs.getConfig("foo").map(FieldConfigs.Config::isOverwrite).orElse(false));
    }

    public void test_overwrite() {
        final Map<String, String> params = Maps.of("foo", "overwrite");
        FieldConfigs fieldConfigs = new FieldConfigs(params);
        assertTrue(fieldConfigs.getConfig("test").isEmpty());
        assertFalse(fieldConfigs.getConfig("foo").map(FieldConfigs.Config::isCache).orElse(false));

    }

    public void test_processFieldConfigs() {
        final FessFileTransformer transformer = createInstance();
        final Map<String, String> params = Maps.of("foo", "cache", "bar", "overwrite", "baz", "cache|overwrite");
        FieldConfigs fieldConfigs = new FieldConfigs(params);
        final Map<String, Object> dataMap = Map.of(//
                "foo", new String[] { "aaa", "bbb" }, //