final FessConfig fessConfig = ComponentUtil.getFessConfig();
        testClient.insertBulkData(fessConfig, "fess_config.scheduled_job", "test.bulk", false);

        assertEquals(1, testClient.insertBulkDataCalls.size());
        assertFalse(testClient.lastCreateOnly);
    }

    @Test
    public void test_insertBulkData_createOnlyTrue() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

			<arg>"fess/doc"</arg>
		</postConstruct>
		<!-- fess_config index -->
		<postConstruct name="addIndexConfig">
			<arg>"fess_config.access_token/access_token"</arg>
		</postConstruct>
		<postConstruct name="addIndexConfig">
			<arg>"fess_config.bad_word/bad_word"</arg>
		</postConstruct>
		<postConstruct name="addIndexConfig">
			<arg>"fess_config.boost_document_rule/boost_document_rule"</arg>
		</postConstruct>

                                            <label for="rebuildConfigIndex" class="form-check-label">fess_config</label>
                                        </div>
                                        <div class="form-check form-check-inline">

    protected void writeFessConfig(final ZipOutputStream zos, final String id) {
        if (fessConfig instanceof SimpleImpl) {
            final Properties prop = new Properties();
            ((SimpleImpl) fessConfig).keySet().stream().forEach(k -> prop.setProperty(k, fessConfig.get(k)));

            final ZipEntry entry = new ZipEntry(id + "/fess_config.properties");
            try {
                zos.putNextEntry(entry);

     *
     * @return the coordinator index name.
     */
    protected String getIndexName() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return INDEX_NAME.replaceFirst("fess_config", fessConfig.getIndexConfigIndex());
    }

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

errors.required={0} is required.
errors.minlength={0} cannot be less than {1}.
success.login=Logged in successfully.
# ... approximately 200 more entries
```

### 3. Update Configuration File

Edit `src/main/resources/fess_config.properties`:

Find the `supported.languages` property (around line 202) and ensure your language code is included:

```properties

    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override
    protected String asEsIndex() {
        return "fess_config.elevate_word";
    }

    @Override
    public String asEsIndexType() {
        return "elevate_word";
    }

    @Override
    public String asEsSearchType() {
        return "elevate_word";
    }

    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override
    protected String asEsIndex() {
        return "fess_config.path_mapping";
    }

    @Override
    public String asEsIndexType() {
        return "path_mapping";
    }

    @Override
    public String asEsSearchType() {
        return "path_mapping";
    }

    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override
    protected String asEsIndex() {
        return "fess_config.file_authentication";
    }

    @Override
    public String asEsIndexType() {
        return "file_authentication";
    }

    @Override
    public String asEsSearchType() {

    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override
    protected String asEsIndex() {
        return "fess_config.file_config";
    }

    @Override
    public String asEsIndexType() {
        return "file_config";
    }

    @Override
    public String asEsSearchType() {
        return "file_config";
    }