public void addRule(int index, Rule rule) {
            if (rule != null) {
                rules.add(index, rule);
            }
        }

        @Override
        public boolean removeRule(Rule rule) {
            return rules.remove(rule);
        }

        @Override
        public boolean hasRule(Rule rule) {
            return rules.contains(rule);
        }
    }

    /**

     */
    public void test_matchWithNullResponseData() {
        ConfigurableRule rule = new ConfigurableRule();
        rule.setRuleId("nullTest");
        rule.setResponseProcessor(new TestResponseProcessor("nullProcessor"));

        // Should handle null gracefully
        assertFalse(rule.match(null));
    }

    /**
     * Test Rule with null rule ID
     */

 */
package org.codelibs.fess.crawler.rule.impl;

import org.codelibs.fess.crawler.container.CrawlerContainer;
import org.codelibs.fess.crawler.processor.ResponseProcessor;
import org.codelibs.fess.crawler.rule.Rule;
import org.codelibs.fess.crawler.rule.RuleManager;

import jakarta.annotation.Resource;

/**
 * Abstract base class for implementing {@link Rule} interfaces.

            if (rule != null) {
                rules.add(rule);
            }
        }

        @Override
        public void addRule(int index, Rule rule) {
            if (rule != null) {
                rules.add(index, rule);
            }
        }

        @Override
        public boolean removeRule(Rule rule) {
            return rules.remove(rule);
        }

        @Override
        public Rule getRule(ResponseData responseData) {
            return null;
        }

        @Override
        public void addRule(Rule rule) {
        }

        @Override
        public void addRule(int index, Rule rule) {
        }

        @Override
        public boolean removeRule(Rule rule) {
            return false;
        }

        @Override

	lcXML := `
<LifecycleConfiguration>
       <Rule>
               <ID>max-versions</ID>
               <Status>Enabled</Status>
               <NoncurrentVersionExpiration>
                       <NewerNoncurrentVersions>2</NewerNoncurrentVersions>
               </NoncurrentVersionExpiration>
       </Rule>
       <Rule>
               <ID>delete-all-versions</ID>
               <Status>Enabled</Status>

                .<SitemapsRule> singleton("sitemapsRule", SitemapsRule.class, rule -> {
                    rule.setResponseProcessor(container.getComponent("sitemapsResponseProcessor"));
                    rule.setRuleId("sitemapsRule");
                    rule.addRule("url", ".*sitemap.*");
                })//

				}
				for _, rule := range meta.lifecycleConfig.Rules {
					if !rule.Expiration.IsNull() || !rule.NoncurrentVersionExpiration.IsNull() {
						// copy the non transition details of the rule
						ruleData, err := xml.Marshal(rule.CloneNonTransition())
						if err != nil {
							return info, errSRBackendIssue(err)
						}

                byte[] bytes = is.readAllBytes();
                String content = new String(bytes);
                for (Map.Entry<String, String> rule : transformationRules.entrySet()) {
                    content = content.replaceAll(rule.getKey(), rule.getValue());
                }
                resultData.setData(content.getBytes());
            } catch (Exception e) {
                throw new RuntimeException(e);

func validateTransitionTier(lc *lifecycle.Lifecycle) error {
	for _, rule := range lc.Rules {
		if rule.Transition.StorageClass != "" {
			if valid := globalTierConfigMgr.IsTierValid(rule.Transition.StorageClass); !valid {
				return errInvalidStorageClass
			}
		}
		if rule.NoncurrentVersionTransition.StorageClass != "" {
			if valid := globalTierConfigMgr.IsTierValid(rule.NoncurrentVersionTransition.StorageClass); !valid {