dictionaryPath = dictionaryPath + "/";
        }
        source = source.replaceAll(Pattern.quote("${fess.dictionary.path}"), dictionaryPath)//
                .replaceAll(Pattern.quote("${fess.index.codec}"), fessConfig.getIndexCodec())//
                .replaceAll(Pattern.quote("${fess.index.number_of_shards}"), numberOfShards)//
                .replaceAll(Pattern.quote("${fess.index.auto_expand_replicas}"), autoExpandReplicas);

```

### Running
```bash
./bin/fess              # From command line
# Or run org.codelibs.fess.FessBoot from IDE
# Access: http://localhost:8080/ (Admin: admin/admin)
```

### Code Formatting
```bash
mvn formatter:format    # Format code
mvn license:format      # Add license headers
```

## Directory Structure

```
src/main/java/org/codelibs/fess/
├── FessBoot.java              # Application entry point

        assertNull(exception.getMessage());
        assertEquals(cause, exception.getCause());
    }

    @Test
    public void test_statusCode_variousHttpCodes() {
        // Test with various HTTP status codes
        int[] statusCodes = { 200, 201, 400, 401, 403, 404, 500, 502, 503 };

        for (int statusCode : statusCodes) {
            WebApiException exception = new WebApiException(statusCode, "Test message");

        // Verify different message codes
        assertEquals(unknownErrorCode, unknownException.getMessageCode());
        assertEquals(parseErrorCode, parseException.getMessageCode());
        assertNotSame(unknownException.getMessageCode(), parseException.getMessageCode());
    }

    @Test
    public void test_complexMessageCode() {
        // Setup - test with a complex message code that includes parameters

    }

    /**
     * Test HTTP status code constants are defined correctly
     */
    @Test
    public void test_httpStatusCodeConstants() {
        // Verify the constants are accessible via reflection or by checking their usage
        // Since the constants are private, we test their values indirectly

        // The constants should match standard HTTP status codes
        // HTTP_STATUS_NOT_FOUND = 404

    protected boolean httpOnly = true;

    /**
     * Retrieves the user code for the current request.
     * The user code is used to uniquely identify users across sessions and requests.
     * It checks multiple sources in order: request attribute, request parameter, cookie, user bean, or generates a new one.
     *
     * @return the user code string, or null if no valid session exists
     */
    public String getUserCode() {

### Fallback Mechanism

If a translation is missing in `fess_label_[locale].properties`, Fess automatically falls back to the base `fess_label.properties` (English).

### Language Code Format

Use standard locale codes:
- ISO 639-1 language codes: `en`, `ja`, `de`, `fr`, `sv`, etc.
- With region when needed: `pt_BR`, `zh_CN`, `zh_TW`, `en_IE`

### Cache Behavior

- Language items are cached for 1 hour by `SystemHelper`

        // Test error handling with edge cases
        try {
            // Test with extreme status codes
            WebApiUtil.setError(-1, "Negative status code");
            WebApiUtil.setError(0, "Zero status code");
            WebApiUtil.setError(999, "Large status code");

            // Test with very long message
            StringBuilder longMessage = new StringBuilder();

        assertTrue(exception.getStackTrace().length > 0);
    }

    @Test
    public void test_differentMessageCodes() {
        // Setup - test with different message codes
        final String message = "Test message";
        final VaMessenger<FessMessages> loginErrorCode = messages -> messages.addErrorsSsoLoginError(UserMessages.GLOBAL_PROPERTY_KEY);

                .put(getApiPath() + "/upload");

        int statusCode = response.getStatusCode();
        // Accept either 200 (success) or other status codes based on implementation
        assertTrue(statusCode == 200 || statusCode == 400, "Status code should be 200 or 400, but was " + statusCode);

        if (statusCode == 200) {
            JsonPath jsonPath = JsonPath.from(response.asString());