[Seasar-user:21763] リスナインスタンスにコンテキスト初期化イベントを送信中の例外

["岩佐圭子"]

お世話になっております。
岩佐と申します。
現在、SAStrutsを用いて開発をしています。

前日までは出なかったエラーが、本日Tomcat起動時に出るようになり、
解決法が分からず困っております。

原因や対処法をご教授願えないでしょうか。
よろしくお願いいたします。

11 29, 2013 11:03:41 午前 org.apache.catalina.core.StandardContext listenerStart
SEVERE: クラス org.seasar.framework.container.servlet.S2ContainerListener のリスナインスタンスにコンテキスト初期化イベントを送信中の例外です
java.lang.NullPointerException
	at org.seasar.struts.customizer.ActionCustomizer.customize(ActionCustomizer.java:81)
	at org.seasar.framework.container.customizer.CustomizerChain.doCustomize(CustomizerChain.java:140)
	at org.seasar.framework.container.customizer.AbstractCustomizer.customize(AbstractCustomizer.java:145)
	at org.seasar.framework.container.creator.ComponentCreatorImpl.customize(ComponentCreatorImpl.java:309)
	at org.seasar.framework.container.creator.ComponentCreatorImpl.createComponentDef(ComponentCreatorImpl.java:269)
	at org.seasar.framework.container.cooldeploy.CoolComponentAutoRegister.createComponentDef(CoolComponentAutoRegister.java:184)
	at org.seasar.framework.container.cooldeploy.CoolComponentAutoRegister.processClass(CoolComponentAutoRegister.java:163)
	at org.seasar.framework.util.ClassTraversal.traverseFileSystem(ClassTraversal.java:213)
	at org.seasar.framework.util.ClassTraversal.traverseFileSystem(ClassTraversal.java:207)
	at org.seasar.framework.util.ClassTraversal.traverseFileSystem(ClassTraversal.java:207)
	at org.seasar.framework.util.ClassTraversal.forEach(ClassTraversal.java:79)
	at org.seasar.framework.util.ResourcesUtil$FileSystemResources.forEach(ResourcesUtil.java:374)
	at org.seasar.framework.container.cooldeploy.CoolComponentAutoRegister.registerAll(CoolComponentAutoRegister.java:129)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.seasar.framework.util.MethodUtil.invoke(MethodUtil.java:96)
	at org.seasar.framework.container.assembler.AbstractMethodAssembler.invoke(AbstractMethodAssembler.java:94)
	at org.seasar.framework.container.assembler.DefaultInitMethodAssembler.assemble(DefaultInitMethodAssembler.java:49)
	at org.seasar.framework.container.deployer.SingletonComponentDeployer.assemble(SingletonComponentDeployer.java:69)
	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.factory.SingletonS2ContainerFactory.init(SingletonS2ContainerFactory.java:167)
	at org.seasar.framework.container.servlet.SingletonS2ContainerInitializer.initialize(SingletonS2ContainerInitializer.java:55)
	at org.seasar.framework.container.servlet.S2ContainerListener.initializeContainer(S2ContainerListener.java:49)
	at org.seasar.framework.container.servlet.S2ContainerListener.contextInitialized(S2ContainerListener.java:56)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4887)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5381)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)
	at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:657)
	at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1636)
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

11 29, 2013 11:03:41 午前 org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
11 29, 2013 11:03:41 午前 org.apache.catalina.core.StandardContext startInternal
SEVERE: 以前のエラーのためにコンテキストの起動が失敗しました [/xxxx]
11 29, 2013 11:03:41 午前 org.apache.coyote.AbstractProtocol start
情報: Starting ProtocolHandler ["http-bio-8080"]
11 29, 2013 11:03:41 午前 org.apache.coyote.AbstractProtocol start
情報: Starting ProtocolHandler ["ajp-bio-8009"]
11 29, 2013 11:03:41 午前 org.apache.catalina.startup.Catalina start
情報: Server startup in 2270 ms