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一切工作正常，但我點擊了我在Eclipse的包資源管理器中的項目並導出war文件，然後我的tomcat7服務器停止工作。我有例外：IllegalArgumentException - Tomcat開始
2012-08-24 11:55:19 org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/lib/jvm/java-6-openjdk-i386/jre/lib/i386/server:/usr/lib/jvm/java-6-openjdk-i386/jre/lib/i386:/usr/lib/jvm/java-6-openjdk-i386/jre/../lib/i386:/usr/lib/jvm/java-6-openjdk-i386/jre/lib/i386/client:/usr/lib/jvm/java-6-openjdk-i386/jre/lib/i386::/usr/java/packages/lib/i386:/usr/lib/i386-linux-gnu/jni:/lib/i386-linux-gnu:/usr/lib/i386-linux-gnu:/usr/lib/jni:/lib:/usr/lib
2012-08-24 11:55:19 org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:Applish' did not find a matching property.
2012-08-24 11:55:20 org.apache.coyote.AbstractProtocolHandler init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
2012-08-24 11:55:20 org.apache.coyote.AbstractProtocolHandler init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
2012-08-24 11:55:20 org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1531 ms
2012-08-24 11:55:20 org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
2012-08-24 11:55:20 org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.12
java.lang.IllegalArgumentException: avalon-framework-api,xml-apis,junit,classworlds,log4j,servletapi-Extension-Name
at java.util.jar.Attributes$Name.<init>(Attributes.java:464)
at java.util.jar.Attributes.getValue(Attributes.java:116)
at org.apache.catalina.util.ManifestResource.getRequiredExtensions(ManifestResource.java:187)
at org.apache.catalina.util.ManifestResource.processManifest(ManifestResource.java:156)
at org.apache.catalina.util.ManifestResource.<init>(ManifestResource.java:52)
at org.apache.catalina.util.ExtensionValidator.validateApplication(ExtensionValidator.java:197)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5015)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1033)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:774)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1033)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:291)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:727)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.startup.Catalina.start(Catalina.java:620)
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:616)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:303)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:431)
有誰能弄清楚發生了什麼事？