マニュアルの「処理ルールの設定方法」(http://s2robot.sandbox.seasar.org/ja/rule-guide.html) で
text/html のコンテンツを処理するサンプルがありますが，このとおりに設定するとエラーになります．

• エラー内容（一部）:

  Exception in thread "main" org.seasar.framework.exception.NoSuchConstructorRuntimeException: [ESSR0064]クラス(org.seasar.robot.rule.Rule)のコンストラクタ(Rule())が見つかりません
  	at org.seasar.framework.util.ClassUtil.getConstructor(ClassUtil.java:246)
  	at org.seasar.framework.container.assembler.AbstractConstructorAssembler.assembleDefault(AbstractConstructorAssembler.java:114)
  	at org.seasar.framework.container.assembler.AutoConstructorAssembler.doAssemble(AutoConstructorAssembler.java:44)
  	at org.seasar.framework.container.assembler.AbstractConstructorAssembler.assemble(AbstractConstructorAssembler.java:55)
  	at org.seasar.framework.container.deployer.SingletonComponentDeployer.assemble(SingletonComponentDeployer.java:64)
  	at org.seasar.framework.container.deployer.SingletonComponentDeployer.deploy(SingletonComponentDeployer.java:48)
  	at org.seasar.framework.container.deployer.SingletonComponentDeployer.init(SingletonComponentDeployer.java:76)
  	at org.seasar.framework.container.impl.ComponentDefImpl.init(ComponentDefImpl.java:236)
  	at org.seasar.framework.container.impl.S2ContainerImpl.init(S2ContainerImpl.java:563)
  	at org.seasar.framework.container.impl.S2ContainerImpl.init(S2ContainerImpl.java:560)
  	at org.seasar.framework.container.impl.S2ContainerImpl.init(S2ContainerImpl.java:560)
  	at org.seasar.framework.container.factory.SingletonS2ContainerFactory.init(SingletonS2ContainerFactory.java:150)
  ...snip...
  

• 現状の設定例

  <component name="htmlRule" class="org.seasar.robot.rule.Rule" >
      <property name="ruleId">"html"</property>
      <property name="mimeType">"text/html"</property>
      <property name="urlPatternRegex">"http://www.example.com/.*html"</property>
      <property name="transformer">fileTransformer</property>
  </component>
  

• 正しい設定例（たぶん）

  <component name="htmlRule" class="org.seasar.robot.rule.impl.RegexRule" >
      <property name="ruleId">"html"</property>
      <property name="transformer">fileTransformer</property>
      <initMethod name="addRule">
          <arg>"mimeType"</arg>
          <arg>"text/html"</arg>
      </initMethod>
  </component>