target.setUrl(getFieldValue(fields.get("url"), String.class));
                    target.setExecutionTime(getFieldValue(fields.get("executionTime"), Integer.class));
                    target.setContentLength(getFieldValue(fields.get("contentLength"), Long.class));
                    target.setRuleId(getFieldValue(fields.get("ruleId"), String.class));

        return sessionId == null ? null : sessionId.toString();
    }

    /**
     * Extracts the session ID from the target object using reflection.
     *
     * @param target The target object.
     * @return The session ID string, or null if not found.
     */
    private String getSessionId(final Object target) {
        final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(target.getClass());

    }

    /**
     * Gets the XPath expression for selecting target nodes.
     *
     * @return the target node path
     */
    public String getTargetNodePath() {
        return targetNodePath;
    }

    /**
     * Sets the XPath expression for selecting target nodes.
     *
     * @param targetNodePath the target node path to set
     */

        final String target;
        if (userAgent == null) {
            target = StringUtil.EMPTY;
        } else {
            target = userAgent;
        }

        int maxUaLength = -1;
        Directive matchedDirective = null;
        for (final Map.Entry<Pattern, Directive> entry : directiveMap.entrySet()) {
            if (entry.getKey().matcher(target).find()) {

    private static boolean removeLastDuplication(final StringBuilder buf, final int size, final boolean isSpace,
            final Set<String> termCache) {
        final String target = rightString(buf, size);
        if (!termCache.contains(target)) {
            termCache.add(target);
            return isSpace;
        }
        buf.setLength(buf.length() - size);
        if (!isSpace && !isLastSpaceChar(buf)) {

        final Integer threadCheckCount = (Integer) objs[2];
        if (logger.isDebugEnabled()) {
            if (urlQueue != null && urlQueue.getUrl() != null) {
                logger.debug("{} is not a target url. ({})", urlQueue.getUrl(), threadCheckCount);
            } else {
                logger.debug("The url is null. ({})", threadCheckCount);
            }
        }
    }

    /**

    /**
     * Search preference.
     */
    protected String searchPreference;

    /**
     * Target indices.
     */
    protected String[] targetIndices;

    /**
     * Creates a new instance of FesenClient.
     * Initializes the address and target indices from system properties.
     */
    public FesenClient() {

mvn surefire:test -Dmaven.surefire.debug=true
```

### Running Tests with Coverage

```bash
mvn clean jacoco:prepare-agent test jacoco:report
```

Coverage reports are generated in `target/site/jacoco/`.

## Common Use Cases

### E-commerce Search

```java
// Product search suggestions
SuggestItem product = new SuggestItem(
    new String[]{"iPhone 15 Pro", "Apple iPhone 15 Pro"},

 * It handles successful responses by transforming the data using a {@link Transformer}
 * and storing the result. It also handles "Not Modified" responses by creating an empty
 * result and storing it. Unsuccessful responses are logged for debugging purposes.
 * </p>
 *
 * <p>
 * The class uses {@link CrawlerContainer} to access components like {@link AccessResult}
 * and {@link UrlQueue}. It also uses {@link CrawlingParameterUtil} to access services

                }
                logger.warn("Failed to login on {}. The http status is {}.\n{}", originalLoginUrl, httpStatusCode, content);
            } else if (logger.isDebugEnabled()) {
                logger.debug("Logged in {}", originalLoginUrl);
            }
        });

    }

    /**
     * Parses the token page and extracts token information.
     * @param tokenPattern The regex pattern to extract the token.