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Can you help?

Can you help?

2003-09-29 - By Todd Burkard

Back
Hello,

I am attempting to get webMathmatica going for our school. I'm not sure if you
can help me since the tomcat examples run fine. The error appears to be related
to a missing class perhaps? Im not sure what to do.... Below is the error as
well as the source of the example that causes the error (They all error out).
Any help/guidence you can provide would be greatly appreciated.

Sincerely,
- Todd Burkard

This is the error when I attempt to use one of my webMathmatica examples:
=======START MATHMATICA ERROR==================================type Exception
report

message

description The server encountered an internal error () that prevented it from
fulfilling this request.

exception

org.apache.jasper.JasperException

Source code of org.apache.jasper.JasperException

: /Examples/Hello.jsp(25,4) Unable to load
class allocateKernel
at org.apache.jasper.compiler.DefaultErrorHandler

Source code of org.apache.jasper.compiler.DefaultErrorHandler

(DefaultErrorHandler
.java:94)
at org.apache.jasper.compiler.ErrorDispatcher

Source code of org.apache.jasper.compiler.ErrorDispatcher

(ErrorDispatcher.java
:428)
at org.apache.jasper.compiler.ErrorDispatcher

(ErrorDispatcher.java
:219)
at org.apache.jasper.compiler.Parser

Source code of org.apache.jasper.compiler.Parser

(Parser.java:712)
at org.apache.jasper.compiler.Parser

(Parser.java:804)
at org.apache.jasper.compiler.Parser

(Parser.java:122)
at org.apache.jasper.compiler.ParserController

Source code of org.apache.jasper.compiler.ParserController

(ParserController.java:199)
at org.apache.jasper.compiler.ParserController

(ParserController.java:153)
at org.apache.jasper.compiler.Compiler

Source code of org.apache.jasper.compiler.Compiler

(Compiler.java:227)
at org.apache.jasper.compiler.Compiler

(Compiler.java:369)
at org.apache.jasper.JspCompilationContext

Source code of org.apache.jasper.JspCompilationContext

(JspCompilationContext.java
:473)
at org.apache.jasper.servlet.JspServletWrapper

Source code of org.apache.jasper.servlet.JspServletWrapper

(JspServletWrapper.java
:190)
at org.apache.jasper.servlet.JspServlet

Source code of org.apache.jasper.servlet.JspServlet

(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet

(JspServlet.java:241)
at javax.servlet.http.HttpServlet

Source code of javax.servlet.http.HttpServlet

(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain

Source code of org.apache.catalina.core.ApplicationFilterChain

(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain

(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve

Source code of org.apache.catalina.core.StandardWrapperValve

(StandardWrapperValve
.java:256)
at org.apache.catalina.core.StandardPipeline

Source code of org.apache.catalina.core.StandardPipeline

$StandardPipelineValveContext
.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline

(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase

Source code of org.apache.catalina.core.ContainerBase

(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve

Source code of org.apache.catalina.core.StandardContextValve

(StandardContextValve
.java:191)
at org.apache.catalina.core.StandardPipeline

$StandardPipelineValveContext
.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline

(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase

(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext

Source code of org.apache.catalina.core.StandardContext

(StandardContext.java:2416)
at org.apache.catalina.core.StandardHostValve

Source code of org.apache.catalina.core.StandardHostValve

(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

Source code of org.apache.catalina.valves.ErrorReportValve

(ErrorReportValve.java
:172)
at org.apache.catalina.core.StandardPipeline

$StandardPipelineValveContext
.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline

(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase

(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve

Source code of org.apache.catalina.core.StandardEngineValve

(StandardEngineValve
.java:174)
at org.apache.catalina.core.StandardPipeline

$StandardPipelineValveContext
.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline

(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase

(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter

Source code of org.apache.coyote.tomcat4.CoyoteAdapter

(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor

Source code of org.apache.coyote.http11.Http11Processor

(Http11Processor.java:601)
at org.apache.coyote.http11.Http11Protocol

Source code of 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

Source code of org.apache.tomcat.util.threads.ThreadPool

$ControlRunnable.run(ThreadPool
.java:619)
at java.lang.Thread

(Thread.java:534)

-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --

Apache Tomcat/4.1.27

======END MATHMATICA ERROR=============================================
Here is the .jsp source
=======START MATHMATICA SOURCE==================================<%@ page
language="java" %>
<%@ taglib uri="/webMathematica-taglib" prefix="msp" %>



<html>
<head>
<title>Hello World</title>
</head>
<body>
<h1>Hello World</h1>
<msp:allocateKernel>
<h4>Date[]</h4>
<msp:evaluate>
Date::usage
</msp:evaluate>

<p>Its current value is:</p>
<msp:evaluate>
Date[]
</msp:evaluate>
</msp:allocateKernel>
<p>
<i>This example shows a basic use of webMathematica.</i>
</p>

</body>
</html>
=======END MATHMATICA SOURCE==================================

-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------
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