#9 Internal server error
I'm trying to see the results of a survey that is completed, and keep
getting an error:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it
from fulfilling this request.
exception
org.apache.jasper.JasperException: edu.vt.ward.survey.InputTextarea
at org.apache.jasper.servlet.JspServletWrapper.service
(JspServletWrapper.java:254)
at org.apache.jasper.servlet.JspServlet.serviceJspFile
(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
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.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:2422)
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:163)
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:199)
at org.apache.coyote.http11.Http11Processor.process
(Http11Processor.java:828)
at org.apache.coyote.http11.Http11Protocol
$Http11ConnectionHandler.processConnection(Http11Protocol.java:
700)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt
(PoolTcpEndpoint.java:584)
at org.apache.tomcat.util.threads.ThreadPool
$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)
root cause
java.lang.ClassCastException: edu.vt.ward.survey.InputTextarea
at edu.vt.ward.survey.OptionList.updateResultsSummary
(OptionList.java:648)
at edu.vt.ward.survey.Section.updateResultsSummary
(Section.java:255)
at edu.vt.ward.survey.SurveyEntryForm.createResultsSummary
(SurveyEntryForm.java:654)
at org.apache.jsp.viewResults_jsp._jspService
(viewResults_jsp.java:139)
at org.apache.jasper.runtime.HttpJspBase.service
(HttpJspBase.java:137)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.servlet.JspServletWrapper.service
(JspServletWrapper.java:210)
at org.apache.jasper.servlet.JspServlet.serviceJspFile
(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
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.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:2422)
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:163)
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:199)
at org.apache.coyote.http11.Http11Processor.process
(Http11Processor.java:828)
at org.apache.coyote.http11.Http11Protocol
$Http11ConnectionHandler.processConnection(Http11Protocol.java:
700)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt
(PoolTcpEndpoint.java:584)
at org.apache.tomcat.util.threads.ThreadPool
$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)
Apache Tomcat/4.1.30