启动java.util.concurrent.ExecutionException期间，子容器失败：

我在为

localhost

启动

tomcat7.0服务器时遇到问题。（eclipse indigo，Java）。以下是错误消息，服务器无法在45毫秒内启动。有人能解释一下我犯了什么错误吗

SEVERE: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/JDAExt]]
    at java.util.concurrent.FutureTask$Sync.innerGet(Unknown Source)
    at java.util.concurrent.FutureTask.get(Unknown Source)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1130)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:782)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1568)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1558)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/JDAExt]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    ... 7 more
Caused by: java.lang.IllegalArgumentException: Invalid <url-pattern> CrystalReportViewerHandler in servlet mapping
    at org.apache.catalina.core.StandardContext.addServletMapping(StandardContext.java:3208)
    at org.apache.catalina.core.StandardContext.addServletMapping(StandardContext.java:3183)
    at org.apache.catalina.deploy.WebXml.configureContext(WebXml.java:1302)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1239)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:825)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:300)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5161)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 7 more
Dec 22, 2015 8:58:31 AM org.apache.catalina.core.ContainerBase startInternal
SEVERE: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
    at java.util.concurrent.FutureTask$Sync.innerGet(Unknown Source)
    at java.util.concurrent.FutureTask.get(Unknown Source)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1130)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:293)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:727)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:646)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:450)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1568)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1558)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1138)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:782)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 7 more
Dec 22, 2015 8:58:31 AM org.apache.catalina.startup.Catalina start
SEVERE: Catalina.start: 
org.apache.catalina.LifecycleException: Failed to start component [StandardServer[8005]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:646)
    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.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:450)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:727)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 7 more
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 9 more
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1138)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:293)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 11 more
Dec 22, 2015 8:58:31 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 4312 ms

严重：启动期间子容器失败
java.util.concurrent.ExecutionException:org.apache.catalina.LifecycleException:未能启动组件[StandardEngine[catalina].StandardHost[localhost].StandardContext[/JDAExt]]
位于java.util.concurrent.FutureTask$Sync.innerGet（未知源）
位于java.util.concurrent.FutureTask.get（未知源）
位于org.apache.catalina.core.ContainerBase.startInternal（ContainerBase.java:1130）
位于org.apache.catalina.core.StandardHost.startInternal（StandardHost.java:782）
位于org.apache.catalina.util.LifecycleBase.start（LifecycleBase.java:150）
位于org.apache.catalina.core.ContainerBase$StartChild.call（ContainerBase.java:1568）
位于org.apache.catalina.core.ContainerBase$StartChild.call（ContainerBase.java:1558）
位于java.util.concurrent.FutureTask$Sync.innerRun（未知源）
位于java.util.concurrent.FutureTask.run（未知源）
位于java.util.concurrent.ThreadPoolExecutor$Worker.runTask（未知源）
位于java.util.concurrent.ThreadPoolExecutor$Worker.run（未知源）
位于java.lang.Thread.run（未知源）
原因：org.apache.catalina.LifecycleException:无法启动组件[StandardEngine[catalina].StandardHost[localhost].StandardContext[/JDAExt]]
位于org.apache.catalina.util.LifecycleBase.start（LifecycleBase.java:154）
... 还有7个
原因：java.lang.IllegalArgumentException:servlet映射中的CrystalReportViewerHandler无效
位于org.apache.catalina.core.StandardContext.addServletMapping（StandardContext.java:3208）
位于org.apache.catalina.core.StandardContext.addServletMapping（StandardContext.java:3183）
位于org.apache.catalina.deploy.WebXml.configureContext（WebXml.java:1302）
位于org.apache.catalina.startup.ContextConfig.webConfig（ContextConfig.java:1239）
位于org.apache.catalina.startup.ContextConfig.configureStart（ContextConfig.java:825）
位于org.apache.catalina.startup.ContextConfig.lifecycleEvent（ContextConfig.java:300）
在org.apache.catalina.util.LifecycleSupport.FireLifecycleSupport（LifecycleSupport.java:119）上
位于org.apache.catalina.util.LifecycleBase.fireLifecycleEvent（LifecycleBase.java:90）
位于org.apache.catalina.core.StandardContext.startInternal（StandardContext.java:5161）
位于org.apache.catalina.util.LifecycleBase.start（LifecycleBase.java:150）
... 还有7个
2015年12月22日上午8:58:31 org.apache.catalina.core.ContainerBase startInternal
严重：启动期间子容器失败
java.util.concurrent.ExecutionException:org.apache.catalina.LifecycleException:无法启动组件[StandardEngine[catalina].StandardHost[localhost]]
位于java.util.concurrent.FutureTask$Sync.innerGet（未知源）
位于java.util.concurrent.FutureTask.get（未知源）
位于org.apache.catalina.core.ContainerBase.startInternal（ContainerBase.java:1130）
位于org.apache.catalina.core.StandardEngine.startInternal（StandardEngine.java:293）
位于org.apache.catalina.util.LifecycleBase.start（LifecycleBase.java:150）
位于org.apache.catalina.core.StandardService.startInternal（StandardService.java:443）
位于org.apache.catalina.util.LifecycleBase.start（LifecycleBase.java:150）
位于org.apache.catalina.core.StandardServer.startInternal（StandardServer.java:727）
位于org.apache.catalina.util.LifecycleBase.start（LifecycleBase.java:150）
位于org.apache.catalina.startup.catalina.start（catalina.java:646）
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处
位于sun.reflect.NativeMethodAccessorImpl.invoke（未知源）
在sun.reflect.DelegatingMethodAccessorImpl.invoke处（未知源）
位于java.lang.reflect.Method.invoke（未知源）
位于org.apache.catalina.startup.Bootstrap.start（Bootstrap.java:322）
位于org.apache.catalina.startup.Bootstrap.main（Bootstrap.java:450）
原因：org.apache.catalina.LifecycleException:未能启动组件[StandardEngine[catalina].StandardHost[localhost]]
位于org.apache.catalina.util.LifecycleBase.start（LifecycleBase.java:154）
位于org.apache.catalina.core.ContainerBase$StartChild.call（ContainerBase.java:1568）
位于org.apache.catalina.core.ContainerBase$StartChild.call（ContainerBase.java:1558）
位于java.util.concurrent.FutureTask$Sync.innerRun（未知源）
位于java.util.concurrent.FutureTask.run（未知源）
位于java.util.concurrent.ThreadPoolExecutor$Worker.runTask（未知源）
位于java.util.concurrent.ThreadPoolExecutor$Worker.run（未知源）
位于java.lang.Thread.run（未知源）
原因：org.apache.catalina.LifecycleException:启动期间子容器失败
位于org.apache.catalina.core.ContainerBase.startInternal（ContainerBase.java:1138）
位于org.apache.catalina.core.StandardHost.startInternal（StandardHost.java:782）
位于org.apache.catalina.util.LifecycleBase.start（LifecycleBase.java:150）
... 还有7个
2015年12月22日上午8:58:31 org.apache.catalina.startup.catalina start
严重：Catalina.start：
org.apache.catalina.LifecycleeException:无法启动组件[StandardServer[8005]]
位于org.apache.catalina.util.LifecycleBase.start（LifecycleBase.java:154）
位于org.apache.catalina.startup.catalina.start（catalina.java:646）
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处
位于sun.reflect.NativeMethodAccessorImpl.invoke（未知源）
在sun.reflect.DelegatingMethodAccessorImpl.invoke处（未知源）
位于java.lang.reflect.Method.invoke（未知源）
位于org.apache.catalina.startup.Bootstrap.start（Bootstrap.java:322）
位于org.apache.catalina.startup.Bootstrap.main（Bootstrap.java:450）
原因：org.apache.catalina.LifecycleException:无法启动组件[Stan]
SEVERE: Exception sending context initialized event to listener instance of class requisite.servlet.RequisiteHomeServletContextListener
java.lang.ExceptionInInitializerError
    at requisite.servlet.RequisiteHomeServletContextListener.contextInitialized(RequisiteHomeServletContextListener.java:50)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4779)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5273)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1568)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1558)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
    at devon.core.log.appender.LFileAppender.write(Unknown Source)
    at devon.core.log.LLogger.write(Unknown Source)
    at devon.core.log.LLogger.println(Unknown Source)
    at devonframework.service.security.requisite.impl.LErrorLogger.println(Unknown Source)
    at requisite.rule.RuleMapper.getRuleDirectory(RuleMapper.java:72)
    at requisite.rule.RuleMapper.refresh(RuleMapper.java:81)
    at requisite.rule.RuleMapper.<clinit>(RuleMapper.java:40)
    ... 11 more
Dec 22, 2015 10:14:08 AM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart

Caused by: java.lang.IllegalArgumentException: 
  Invalid <url-pattern> CrystalReportViewerHandler in servlet mapping

Caused by: java.lang.IllegalArgumentException: Invalid <url-pattern> CrystalReportViewerHandler in servlet mapping