eclipse3.2+myeclipse5.0+tomcat5.5+jdk1.5无法启动，请教如何解决

2011-12-4 9:30:42 org.apache.catalina.core.AprLifecycleListener init
信息: Cannot find message associated with key aprListener.tcnValid
2011-12-4 9:30:42 org.apache.catalina.core.AprLifecycleListener init
信息: Cannot find message associated with key aprListener.flags
2011-12-4 9:30:43 org.apache.coyote.http11.Http11AprProtocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2011-12-4 9:30:43 org.apache.coyote.ajp.AjpAprProtocol init
信息: Initializing Coyote AJP/1.3 on ajp-8009
2011-12-4 9:30:43 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 766 ms
2011-12-4 9:30:43 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2011-12-4 9:30:43 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/5.5.29
2011-12-4 9:30:43 org.apache.catalina.core.StandardHost start
信息: XML validation disabled
2011-12-4 9:30:43 org.apache.catalina.loader.WebappClassLoader validateJarFile
信息: validateJarFile(D:\LP\code\ui\WEB-INF\lib\jsp-api.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/jsp/JspPage.class
2011-12-4 9:30:43 org.apache.catalina.loader.WebappClassLoader validateJarFile
信息: validateJarFile(D:\LP\code\ui\WEB-INF\lib\servlet-api.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
2011-12-4 9:30:43 org.apache.catalina.loader.WebappClassLoader validateJarFile
信息: validateJarFile(D:\LP\code\ui\WEB-INF\lib\weblogic.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
2011-12-4 9:30:44 org.apache.catalina.core.StandardContext listenerStart
严重: Exception sending context initialized event to listener instance of class org.apache.myfaces.webapp.StartupServletContextListener
java.lang.NoClassDefFoundError: org/apache/commons/digester/Digester
at org.apache.myfaces.config.impl.digester.DigesterFacesConfigUnmarshallerImpl.<init>(DigesterFacesConfigUnmarshallerImpl.java:42)
at org.apache.myfaces.config.FacesConfigurator.configure(FacesConfigurator.java:121)
at org.apache.myfaces.webapp.StartupServletContextListener.initFaces(StartupServletContextListener.java:66)
at org.apache.myfaces.webapp.StartupServletContextListener.contextInitialized(StartupServletContextListener.java:49)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3795)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4252)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:448)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
2011-12-4 9:30:44 org.apache.catalina.core.StandardContext start
严