```bash
# Build all modules
mvn clean install

# Build without tests
mvn clean install -DskipTests

# Build specific module
mvn clean install -pl fess-crawler

# Generate test coverage report
mvn jacoco:report
```

### Code Quality

```bash
# Format code
mvn formatter:format

# Update license headers
mvn license:format

# Run static analysis
mvn spotbugs:check

import jakarta.annotation.PostConstruct;
import jakarta.annotation.PreDestroy;

/**
 * Helper class for managing crawler statistics and performance metrics.
 * This class provides functionality to track, record, and report statistics
 * about crawler operations including timing data, performance metrics, and
 * operational events. It uses an internal cache to maintain statistics
 * objects and provides methods to begin tracking, record events, and

    val commonsLang = "org.apache.commons:commons-lang3"
    val commonsMath = "org.apache.commons:commons-math3"
    val configurationCacheReport = "org.gradle.buildtool.internal:configuration-cache-report:$configurationCacheReportVersion"
    val develocityTestAnnotation = "com.gradle:develocity-testing-annotations"
    val eclipseSisuPlexus = "org.eclipse.sisu:org.eclipse.sisu.plexus"

				// Context is canceled, return at once.
				// request canceled, no entries to return
				return entries, io.EOF
			}
			if !IsErr(err, context.DeadlineExceeded, grid.ErrDisconnected) {
				// Report error once per bucket, but continue listing.x
				storageLogOnceIf(ctx, err, "GetMetacacheListing:"+o.Bucket)
			}
			o.Transient = true
			o.Create = false
			o.ID = mustGetUUID()
		} else {

        for (int i = 0; i < buffer.length; i++) {
            buffer[i] = (byte) 0xFF;
        }

        int written = trans2SetFileInfo.writeDataWireFormat(buffer, 0);

        // Should report 26 bytes written (20 from encode + 6 increment)
        assertEquals(26, written);

        // Check that padding bytes are zeros
        // The implementation writes 8 bytes with writeInt8 but only increments by 6

                .setDeprecatedHandler(usedDeprecatedOptions::add)
                .build();

        CommandLine commandLine = parser.parse(options, cleanArgs);
        // to trigger deprecation handler, so we can report deprecation BEFORE we actually use options
        options.getOptions().forEach(commandLine::hasOption);
        return commandLine;
    }

    public Set<Option> getUsedDeprecatedOptions() {

        }
      }
      return false;
    }

    /**
     * If more than this many consecutive positions are filled in a table of the specified size,
     * report probable hash flooding. ({@link #hashFloodingDetected} may also report hash flooding
     * if fewer consecutive positions are filled; see that method for details.)
     */
    static int maxRunBeforeFallback(int tableSize) {

        // Disallow: /*.pdf$ - should block .pdf files but not .pdf with query params
        assertFalse(robotsTxt.allows("/document.pdf", "WildcardBot"));
        assertFalse(robotsTxt.allows("/files/report.pdf", "WildcardBot"));
        assertTrue(robotsTxt.allows("/document.pdf?download=true", "WildcardBot")); // $ means exact end

        // Disallow: /admin/*.php - should block PHP files in admin directory

                    .setDeprecatedHandler(this::addDeprecatedOption)
                    .get();
            CommandLine commandLine = parser.parse(options, cleanArgs);
            // to trigger deprecation handler, so we can report deprecation BEFORE we actually use options
            options.getOptions().forEach(commandLine::hasOption);
            return commandLine;
        }

        protected void addDeprecatedOption(Option option) {

		Subsystem: tierSubsystem,
		Name:      tierRequestsFailure,
		Help:      "Number of requests to download object from warm tier that failed",
		Type:      counterMetric,
	}
)

func (t *tierMetrics) Report() []MetricV2 {
	metrics := getHistogramMetrics(t.histogram, tierTTLBMD, true, true)
	t.RLock()
	defer t.RUnlock()
	for tier, stat := range t.requestsCount {
		metrics = append(metrics, MetricV2{