我在eclipse中使用tomcat 6服务器作为spring应用程序。在服务器的webapps文件夹中部署最新的war后，当我启动服务器时，它会抛出class not found异常，并带有以下堆栈跟踪。
SEVERE: Error configuring application listener of class com.abc.xyz.BootStrapper
java.lang.ClassNotFoundException: com.abc.xyz.BootStrapper
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4153)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4709)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:822)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
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:754)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Sep 15, 2015 11:01:36 AM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Error configuring application listener of class com.xyz.listener.xyzServletContextListener
java.lang.ClassNotFoundException: com.xyz.listener.xyzServletContextListener
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4153)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4709)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:822)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
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:754)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Sep 15, 2015 11:01:36 AM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Skipped installing application listeners due to previous error(s)
Sep 15, 2015 11:01:36 AM org.apache.catalina.core.StandardContext start
SEVERE: Error listenerStart
Sep 15, 2015 11:01:36 AM org.apache.catalina.core.StandardContext start
SEVERE: Context [/xyz] startup failed due to previous errors
Sep 15, 2015 11:01:36 AM waffle.apache.MixedAuthenticator stop
INFO: [waffle.apache.MixedAuthenticator] stopped
Sep 15, 2015 11:01:36 AM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor host-manager.xml
Sep 15, 2015 11:01:36 AM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor manager.xml
Sep 15, 2015 11:01:36 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory docs
Sep 15, 2015 11:01:36 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory examples
Sep 15, 2015 11:01:36 AM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextInitialized()
Sep 15, 2015 11:01:36 AM org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextInitialized()
Sep 15, 2015 11:01:36 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory ROOT
Sep 15, 2015 11:01:36 AM org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8086
Sep 15, 2015 11:01:36 AM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
Sep 15, 2015 11:01:36 AM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/12 config=null
Sep 15, 2015 11:01:36 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 609 ms
请帮我解决这个问题。
谢谢， Poorna。