tomcat启动出错，log文件如次

八月 14, 2015 5:15:30 下午 org.apache.catalina.core.AprLifecycleListener init
信息: Loaded APR based Apache Tomcat Native library 1.1.33 using APR version 1.5.1.
八月 14, 2015 5:15:30 下午 org.apache.catalina.core.AprLifecycleListener init
信息: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
八月 14, 2015 5:15:31 下午 org.apache.catalina.core.AprLifecycleListener initializeSSL
信息: OpenSSL successfully initialized with version OpenSSL 1.0.1m 19 Mar 2015
八月 14, 2015 5:15:31 下午 org.apache.coyote.http11.Http11AprProtocol init
信息: Initializing Coyote HTTP/1.1 on http-6789
八月 14, 2015 5:15:31 下午 org.apache.coyote.ajp.AjpAprProtocol init
信息: Initializing Coyote AJP/1.3 on ajp-8009
八月 14, 2015 5:15:31 下午 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 1585 ms
八月 14, 2015 5:15:31 下午 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
八月 14, 2015 5:15:31 下午 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.44
八月 14, 2015 5:15:31 下午 org.apache.catalina.startup.HostConfig deployDescriptor
信息: Deploying configuration descriptor host-manager.xml
八月 14, 2015 5:15:32 下午 org.apache.catalina.startup.HostConfig deployDescriptor
信息: Deploying configuration descriptor manager.xml
八月 14, 2015 5:15:32 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory docs
八月 14, 2015 5:15:32 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory examples
八月 14, 2015 5:15:32 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory ROOT
八月 14, 2015 5:15:32 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory test
八月 14, 2015 5:15:32 下午 org.apache.tomcat.util.digester.Digester endElement
严重: End event threw exception
java.lang.reflect.InvocationTargetException
	at sun.reflect.GeneratedMethodAccessor23.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.tomcat.util.IntrospectionUtils.callMethod1(IntrospectionUtils.java:928)
	at org.apache.tomcat.util.digester.SetNextRule.end(SetNextRule.java:192)
	at org.apache.tomcat.util.digester.Rule.end(Rule.java:228)
	at org.apache.tomcat.util.digester.Digester.endElement(Digester.java:1158)
	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:609)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1782)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2973)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
	at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
	at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:648)
	at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1675)
	at org.apache.catalina.startup.ContextConfig.applicationWebConfig(ContextConfig.java:365)
	at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:1045)
	at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:265)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4616)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:802)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:583)
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1080)
	at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1003)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:507)
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1322)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:325)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1068)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:822)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1060)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
	at org.apache.catalina.core.StandardService.start(StandardService.java:525)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:759)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.lang.IllegalArgumentException: addChild:  Child name 'ShowParames' is not unique
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:789)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
	at org.apache.catalina.core.StandardContext.addChild(StandardContext.java:2387)
	... 45 more