Hello all,
I'm new to tomcat and I've been tearing my hair out for the past week
trying to get the simplest examples to run.
I'm running a clean install of tomcat 4.1.27, and have been able to run
the struts-examples, the admin webapp (to my great surprise), and even
some of the examples from my struts textbook.
the problem i've been having is understanding the error messages so that
i can figure out what's wrong.
Is there any way of getting better/different errors than simply just the
HTTP/50x messages? Is there a way to trace execution through the program?
How difficult is it to set up a debugger to work with tomcat, so that I
can see what line is causing the server to choke?
this is my log file from a recent attempt at playing with struts, can someone
please help, and tell me what this means:
---
2003-10-01 04:57:14 StandardWrapper[/test:invoker]: Loading container servlet invoker
2003-10-01 04:57:14 StandardWrapper[/test:jsp]: Marking servlet jsp as unavailable
2003-10-01 04:57:14 StandardContext[/test]: Servlet /test threw load() exception
javax.servlet.ServletException: Wrapper cannot find servlet class
org.apache.jasper.servlet.JspServlet or a class it depends on
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:891)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:823)
at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3421)
at org.apache.catalina.core.StandardContext.reload(StandardContext.java:2568)
at org.apache.catalina.servlets.ManagerServlet.reload(ManagerServlet.java:802)
at
org.apache.catalina.servlets.HTMLManagerServlet.reload(HTMLManagerServlet.java:501)
at
org.apache.catalina.servlets.HTMLManagerServlet.doGet(HTMLManagerServlet.java:151)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:553)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:601)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
at java.lang.Thread.run(Thread.java:536)
----- Root Cause -----
java.lang.ClassNotFoundException: org.apache.jasper.servlet.JspServlet
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1444)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1289)
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:885)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:823)
at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3421)
at org.apache.catalina.core.StandardContext.reload(StandardContext.java:2568)
at org.apache.catalina.servlets.ManagerServlet.reload(ManagerServlet.java:802)
at
org.apache.catalina.servlets.HTMLManagerServlet.reload(HTMLManagerServlet.java:501)
at
org.apache.catalina.servlets.HTMLManagerServlet.doGet(HTMLManagerServlet.java:151)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:553)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:601)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
at java.lang.Thread.run(Thread.java:536)
2003-10-01 04:57:14 StandardManager[/test]: Starting
2003-10-01 04:57:14 StandardManager[/test]: Force random number initialization starting
2003-10-01 04:57:14 StandardManager[/test]: Seeding random number generator class
java.security.SecureRandom
2003-10-01 04:57:14 StandardManager[/test]: Seeding of random number generator has
been completed
2003-10-01 04:57:14 StandardManager[/test]: Force random number initialization
completed
2003-10-01 04:57:14 StandardManager[/test]: Start: Loading persisted sessions
2003-10-01 04:57:14 StandardManager[/test]: Loading persisted sessions from
SESSIONS.ser
2003-10-01 04:57:14 StandardManager[/test]: Creating custom object input stream for
class loader WebappClassLoader
available:
delegate: false
repositories:
required:
----------> Parent Classloader:
[EMAIL PROTECTED]
2003-10-01 04:57:14 StandardManager[/test]: Loading 0 persisted sessions
2003-10-01 04:57:14 StandardManager[/test]: Finish: Loading persisted sessions
2003-10-01 04:57:14 StandardContext[/test]: Reloading this Context is completed
2003-10-01 04:57:14 HTMLManager: list: Listing contexts for virtual host 'localhost'
2003-10-01 04:57:14 WebappLoader[/test]: BACKGROUND THREAD Starting
2003-10-01 04:57:17 StandardContext[/test]: Mapping contextPath='/test' with
requestURI='/test/index.jsp' and relativeURI='/index.jsp'
2003-10-01 04:57:17 StandardContext[/test]: Trying exact match
2003-10-01 04:57:17 StandardContext[/test]: Trying prefix match
2003-10-01 04:57:17 StandardContext[/test]: Trying extension match
2003-10-01 04:57:17 StandardContext[/test]: Mapped to servlet 'jsp' with servlet path
'/index.jsp' and path info 'null' and update=true
2003-10-01 04:57:17 StandardWrapperValve[jsp]: Servlet jsp is currently unavailable
2003-10-01 04:57:18 StandardContext[/test]: Mapping contextPath='/test' with
requestURI='/test/index.jsp' and relativeURI='/index.jsp'
2003-10-01 04:57:18 StandardContext[/test]: Trying exact match
2003-10-01 04:57:18 StandardContext[/test]: Trying prefix match
2003-10-01 04:57:18 StandardContext[/test]: Trying extension match
2003-10-01 04:57:18 StandardContext[/test]: Mapped to servlet 'jsp' with servlet path
'/index.jsp' and path info 'null' and update=true
2003-10-01 04:57:18 StandardWrapperValve[jsp]: Servlet jsp is currently unavailable
2003-10-01 04:57:22 StandardContext[/test]: Mapping contextPath='/test' with
requestURI='/test/' and relativeURI='/'
2003-10-01 04:57:22 StandardContext[/test]: Trying exact match
2003-10-01 04:57:22 StandardContext[/test]: Trying prefix match
2003-10-01 04:57:22 StandardContext[/test]: Trying extension match
2003-10-01 04:57:22 StandardContext[/test]: Trying default match
2003-10-01 04:57:22 StandardContext[/test]: Mapped to servlet 'default' with servlet
path '/' and path info 'null' and update=true
2003-10-01 04:57:22 StandardContext[/test]: Mapping contextPath='/test' with
requestURI='/test/index.jsp' and relativeURI='/index.jsp'
2003-10-01 04:57:22 StandardContext[/test]: Trying exact match
2003-10-01 04:57:22 StandardContext[/test]: Trying prefix match
2003-10-01 04:57:22 StandardContext[/test]: Trying extension match
2003-10-01 04:57:22 StandardContext[/test]: Mapped to servlet 'jsp' with servlet path
'/index.jsp' and path info 'null' and update=true
2003-10-01 04:57:22 StandardWrapperValve[jsp]: Servlet jsp is currently unavailable
2003-10-01 04:58:20 WebappLoader[/test]: Stopping background thread
2003-10-01 04:58:20 WebappLoader[/test]: BACKGROUND THREAD Stopping
2003-10-01 04:58:20 WebappLoader[/test]: Starting background thread
2003-10-01 04:58:20 WebappLoader[/test]: BACKGROUND THREAD Starting
2003-10-01 04:58:24 StandardContext[/test]: Mapping contextPath='/test' with
requestURI='/test/index.jsp' and relativeURI='/index.jsp'
2003-10-01 04:58:24 StandardContext[/test]: Trying exact match
2003-10-01 04:58:24 StandardContext[/test]: Trying prefix match
2003-10-01 04:58:24 StandardContext[/test]: Trying extension match
2003-10-01 04:58:24 StandardContext[/test]: Mapped to servlet 'jsp' with servlet path
'/index.jsp' and path info 'null' and update=true
2003-10-01 04:58:24 StandardWrapperValve[jsp]: Servlet jsp is currently unavailable
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