if prefix, suffix, ok := splitUSTARPath(hdr.Name); ok {
		namePrefix, hdr.Name = prefix, suffix
	}

	// Pack the main header.
	var f formatter
	blk := tw.templateV7Plus(hdr, f.formatString, f.formatOctal)
	f.formatString(blk.toUSTAR().prefix(), namePrefix)
	blk.setFormat(FormatUSTAR)
	if f.err != nil {
		return f.err // Should never happen since header is validated
	}

- **Type Safe** - Comprehensive use of generics and modern Java type system features

### Additional Components
- **Text Processing** (`org.codelibs.core.text`) - JSON utilities, tokenization, decimal formatting, and text manipulation
- **Logging Abstraction** (`org.codelibs.core.log`) - Flexible logging system supporting JCL (Jakarta Commons Logging) and JUL (Java Util Logging)

   *
   * <ul>
   *   <li>{@code padStart("7", 3, '0')} returns {@code "007"}
   *   <li>{@code padStart("2010", 3, '0')} returns {@code "2010"}
   * </ul>
   *
   * <p>See {@link java.util.Formatter} for a richer set of formatting capabilities.
   *
   * @param string the string which should appear at the end of the result
   * @param minLength the minimum length the resulting string must have. Can be zero or negative, in

		return nil, err
	}

	// All disks report unformatted we should initialized everyone.
	if shouldInitErasureDisks(sErrs) && firstDisk {
		logger.Info("Formatting %s pool, %v set(s), %v drives per set.",
			humanize.Ordinal(poolCount), setCount, setDriveCount)

		// Initialize erasure code format on disks

		got := make([]byte, len(v.want))
		f.formatNumeric(got, v.in)
		ok := (f.err == nil)
		if ok != v.ok {
			if v.ok {
				t.Errorf("formatNumeric(%d): got formatting failure, want success", v.in)
			} else {
				t.Errorf("formatNumeric(%d): got formatting success, want failure", v.in)
			}
		}
		if string(got) != v.want {
			t.Errorf("formatNumeric(%d): got %q, want %q", v.in, got, v.want)
		}
	}
}

/**
 * Utility class providing static functions for Fess JSP/JSTL expressions and tag libraries.
 * This class contains various helper methods for formatting, parsing, and manipulating data
 * in Fess web templates, including date formatting, localization, file operations, and
 * query parameter handling.
 *
 * @since 1.0
 */
public class FessFunctions {
    /** Logger instance for this class */

        // Test witness address validation
        assertNotNull(mockWitnessAddress);
        assertTrue(mockWitnessAddress.getHostAddress().matches("\\d+\\.\\d+\\.\\d+\\.\\d+"));

        // Test service endpoint formatting
        String serviceEndpoint = "ncacn_ip_tcp:" + mockWitnessAddress.getHostAddress() + "[135]";
        assertNotNull(serviceEndpoint);
        assertTrue(serviceEndpoint.contains("ncacn_ip_tcp"));

        assertEquals(longName + " is not available.", exception.getMessage());
        assertEquals(longName, exception.getComponentName());
    }

    public void test_messageFormatting() {
        // Test message formatting for different constructors
        ContainerNotAvailableException exception1 = new ContainerNotAvailableException("service1");
        assertEquals("service1 is not available.", exception1.getMessage());

- Check index permissions and mappings
- Ensure sufficient cluster resources

**Suggestions Not Appearing**
- Confirm documents are indexed: `suggester.refresh()`
- Check query formatting and filters
- Verify analyzer configurations

**Performance Issues**
- Increase thread pool size in SuggesterBuilder
- Optimize batch sizes for indexing operations
- Review OpenSearch cluster performance

            return baseQuery;
        }
        return baseQuery + " sort:" + sortField;
    }

    /**
     * Appends a query string to the query buffer with proper formatting.
     * Handles OR operators and wraps complex queries in parentheses when necessary.
     *
     * @param queryBuf the StringBuilder to append to
     * @param query the query string to append
     */