Thank you for your help. I saw that line
at org.apache.struts.taglib.bean.MessageTag.doStartTag(MessageTag.java:242)
but thought it's not important. What a mistake...
Thomas At 10:37 17.10.2002 -0400, [EMAIL PROTECTED] wrote:
When resolving issues like this, here is one approach you can take:
1. The stack trace tells you exactly where the error occured - it's in the
'root cause' section. In your case, it was at:
at
org.apache.struts.taglib.bean.MessageTag.doStartTag(MessageTag.java:242)
This indicates some sort of JSP error was thrown at line 242 of the class
org.apache.struts.taglib.bean.MessageTag.
2. Now that you know exactly where the error occured, look at the source
code. You know which file to look in and what line number from the stack
trace. In your case, with 1.02 the source code (from the MessageTag.java
file) reads:
public int doStartTag() throws JspException {
// Construct the optional arguments array we will be using
Object args[] = new Object[5];
args[0] = arg0;
args[1] = arg1;
args[2] = arg2;
args[3] = arg3;
args[4] = arg4;
// Retrieve the message string we are looking for
String message = RequestUtils.message(pageContext, this.bundle,
this.localeKey, this.key, args);
if (message == null) {
line 242 ->JspException e = new JspException
(messages.getMessage("message.message", key));
RequestUtils.saveException(pageContext, e);
throw e;
}
// Print the retrieved message to our output writer
ResponseUtils.write(pageContext, message);
// Continue processing this page
return (SKIP_BODY);
}
As you can see, I've identified line 242 as the line where the JSPException
is thrown. Great, we found the error!
So, what condition causes this exception to be thrown? The Exception is
thrown if the 'message' parameter is null - meaning that there is no
message in the properties file that corresponds to the key you put in the
message tag.
Check your message tag against your properties file, it looks like you
either have no message in the properties file for the key, or you may have
misspelled the key or something.
btw - there is a chapter in my upcoming book 'Struts Kick Start' that goes
into more detail on debugging these kinds of problems by reviewing the tag
source files....
Best of luck,
Kevin
---
Kevin Bedell
Author,. Struts Kick Start
Isabell Schaadt <[EMAIL PROTECTED]> on 10/17/2002 09:34:51 AM
Please respond to "Struts Users Mailing List"
<[EMAIL PROTECTED]>
To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
cc: (bcc: Kevin Bedell/Systems/USHO/SunLife)
Subject: Re: problems with struts under j2sdk1.4.0_01
Hi Thomas,
thank you for your answer.
The exception message isn't very helpfully. Here it is:
type: Exception report
message: Internal Server Error
description: The server encountered an internal error (Internal Server
Error) that
prevented it from fulfilling this request.
exception:
javax.servlet.ServletException
at
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:471)
at org.apache.jsp.index$jsp._jspService(index$jsp.java:237)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:201)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)
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:243)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1027)
at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125)
at java.lang.Thread.run(Thread.java:536)
root cause:
javax.servlet.jsp.JspException
at
org.apache.struts.taglib.bean.MessageTag.doStartTag(MessageTag.java:242)
at org.apache.jsp.index$jsp._jspService(index$jsp.java:93)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:201)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)
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:243)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1027)
at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125)
at java.lang.Thread.run(Thread.java:536)
I hope you can help me.
> What exactly is the problem? What error messages do you get?
>
> Thomas
>
>
> At 15:13 17.10.2002 +0200, Isabell Schaadt wrote:
> >Hi,
> >
> >I'm working since a few month with jakarta-struts-1.0.2 and
> >jakarta-tomcat-4.0.4 under jdk1.3.1.
> >Yesterday I convert my java to j2sdk1.4.0_01 but now struts doesn't work
> >anymore - even the struts-examples don't work.
> >Does struts have problems with the j2sdk1.4.0_01 or do I have to
consider
> >some special settings? What should I do?
> >
> >
> >
> > Selene
> >
> >--
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