javax.servlet.ServletException：java.lang.NoClassDefFoundError：org / apache / tomcat / InstanceManager

Question

在理解通过 tomcat 6.0.33 访问 Web 应用程序时引发的异常跟踪背后的问题时，我一直面临着挑战。下面是详细的异常跟踪。供参考。同一应用程序适用于不同版本的 tomcat，但我无法通过 6.0.33 tomcat 访问我的应用程序。当我访问我的应用程序主页（仅供参考）时，就会发生这种情况。

异常跟踪：

org.apache.catalina.authenticator.FormAuthenticator forwardToLoginPage
WARNING: Unexpected error forwarding to login page
javax.servlet.ServletException: java.lang.NoClassDefFoundError: org/apache/tomcat/InstanceManager
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:268)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at org.apache.catalina.authenticator.FormAuthenticator.forwardToLoginPage(FormAuthenticator.java:322)
    at org.apache.catalina.authenticator.FormAuthenticator.authenticate(FormAuthenticator.java:246)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:528)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:589)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:111)
    at org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:347)
    at org.apache.catalina.ha.session.JvmRouteBinderValve.invoke(JvmRouteBinderValve.java:228)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:291)
    at org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:444)
    at org.apache.coyote.ajp.AjpAprProtocol$AjpConnectionHandler.process(AjpAprProtocol.java:399)
    at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1675)
    at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NoClassDefFoundError: org/apache/tomcat/InstanceManager
    at java.lang.Class.getDeclaredFields0(Native Method)
    at java.lang.Class.privateGetDeclaredFields(Class.java:2291)
    at java.lang.Class.getDeclaredFields(Class.java:1743)
    at org.apache.catalina.util.DefaultAnnotationProcessor.processAnnotations(DefaultAnnotationProcessor.java:181)
    at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:153)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:340)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at org.apache.catalina.authenticator.FormAuthenticator.forwardToLoginPage(FormAuthenticator.java:322)
    at org.apache.catalina.authenticator.FormAuthenticator.authenticate(FormAuthenticator.java:245)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:528)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:589)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:347)
    at org.apache.catalina.ha.session.JvmRouteBinderValve.invoke(JvmRouteBinderValve.java:227)

非常感谢任何指导我解决问题的帮助。

问候！！

贾伊

Answer 1

似乎您已经在 Tomcat 的工作目录中缓存了其他 Tomcat 版本的一些 Java 类。解决您的问题

1. 停止您的 tomcat
2. 删除 $CATALINA_BASE/work/*
3. 删除 $CATALINA_BASE/webapps 中 Web 应用程序的解压目录（可能不需要此步骤）
4. 启动你的雄猫。

Answer 2

看起来您的 JSP 是针对 Tomcat 7（预）编译的。这些无法部署在 Tomcat 6 上。