* Processes the response data using the appropriate rule processor.
     * @param urlQueue The URL queue entry.
     * @param responseData The response data to process.
     */
    protected void processResponse(final UrlQueue<?> urlQueue, final ResponseData responseData) {
        // get a rule
        final Rule rule = crawlerContext.ruleManager.getRule(responseData);
        if (rule == null) {

        @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

        <rule-config name='ClassName'>
            <property name='regex' value='^[A-Z][\$a-zA-Z0-9]*$'/>
        </rule-config>
        <rule-config name='FieldName'>
            <property name='finalRegex' value='^[a-z][a-zA-Z0-9]*$'/>
            <property name='staticFinalRegex' value='^logger$|^[A-Z][A-Z_0-9]*$|^serialVersionUID$'/>
        </rule-config>
        <rule-config name='MethodName'>

class MockWebServerRuleTest {
  @Test fun statementStartsAndStops() {
    val rule = MockWebServerRule()
    val called = AtomicBoolean()
    val statement: Statement =
      rule.apply(
        object : Statement() {
          override fun evaluate() {
            called.set(true)
            rule.server
              .url("/")
              .toUrl()
              .openConnection()

        <rule-config name='ClassName'>
            <property name='regex' value='^[A-Z][\$a-zA-Z0-9]*$'/>
        </rule-config>
        <rule-config name='FieldName'>
            <property name='finalRegex' value='^[a-z][a-zA-Z0-9]*$'/>
            <property name='staticFinalRegex' value='^logger$|^[A-Z][A-Z_0-9]*$|^serialVersionUID$'/>
        </rule-config>
        <rule-config name='MethodName'>

        responseData.setUrl("http://example.com/");

        final Rule rule = mock(Rule.class);
        final ResponseProcessor responseProcessor = mock(ResponseProcessor.class);

        when(ruleManager.getRule(responseData)).thenReturn(rule);
        when(rule.getRuleId()).thenReturn("test-rule");
        when(rule.getResponseProcessor()).thenReturn(responseProcessor);

	}

	// Validates server-side encryption config rules
	// Only one rule is allowed on AWS S3
	if len(config.Rules) != 1 {
		return nil, errors.New("only one server-side encryption rule is allowed at a time")
	}

	for _, rule := range config.Rules {
		switch rule.DefaultEncryptionAction.Algorithm {
		case AES256:
			if rule.DefaultEncryptionAction.MasterKeyID != "" {

            final Rule rule = ruleManager.getRule(responseData);
            if (rule == null) {
                throw new CrawlingAccessException("No url rule for " + url);
            }
            responseData.setRuleId(rule.getRuleId());
            final ResponseProcessor responseProcessor = rule.getResponseProcessor();

	type filterRule FilterRule
	rule := filterRule{}
	if err := d.DecodeElement(&rule, &start); err != nil {
		return err
	}

	if rule.Name != "prefix" && rule.Name != "suffix" {
		return &ErrInvalidFilterName{rule.Name}
	}

	if err := ValidateFilterRuleValue(filter.Value); err != nil {
		return err
	}

	*filter = FilterRule(rule)

	return nil
}

```
@Rule public final MockWebServerRule serverRule = new MockWebServerRule();
```

The `serverRule` field has a `server` field. It is an instance of `MockWebServer`. That instance
will be shut down automatically after the test runs.

For Kotlin, the `@JvmField` annotation is also necessary:

```
@JvmField @Rule val serverRule = MockWebServerRule()