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From Phillip Morelock <subscripti...@phillipmorelock.com>
Subject Re: STATUS 500 - Unable to compile class for JSPNote
Date Thu, 30 May 2002 19:19:46 GMT
Hi there!

So since you claim you are "new to this sort of thing" -- that's fair
enough.  I would like to make sure you've read the Java Servlet
specification:

http://java.sun.com/products/servlet/download.html

Hit the "download" link next to "Specification" under 2.3.

http://java.sun.com/products/jsp/download.html

On this one (JSP), download the 1.2 specification.

These documents are the official reference for how this stuff is "supposed"
to work, and since Tomcat is the official reference implementation, Tomcat
generally works as expected under the specifications.

If you've already read this stuff, forgive me.  I'm an old-timer and I still
refer to these documents when I get stuck.  Maybe smarter folks than I can
keep the whole thing in their heads.  Cheers and have fun.

fillup


On 5/30/02 10:00 AM, "Trenton D. Adams" <trent.nospam@telusplanet.net>
wrote:

> Thanks for the info.
> 
> I did have it in "WEB-INF/lib/jtl.jar" before, but it does the same
> thing.
> 
> I have added that tag you gave me, and that fixed the problem.  I don't
> understand why though.  I thought that...
> 
> <%@ taglib uri="/WEB-INF/tlds/taglib.tld"
>   prefix="javamail" %>
> 
> ...was enough?
> 
> Do I also require...?
> <taglib>
>   <taglib-uri>/WEB-INF/tlds/taglib.tld</taglib-uri>
>   <taglib-location>/WEB-INF/lib/jtl.jar</taglib-location>
> </taglib>
> 
> The above taglib doesn't look right to me, but I can't put my finger on
> it.  I'm new to this sort of thing so please go easy on me! :)
> 
> I get the following error on the Tomcat console when I add the <taglib>
> above...
> 
> PARSE error at line 1 column 1
> org.xml.sax.SAXParseException: The markup in the document preceding the
> root element must be well-formed.
> 
> 
> I do use packages/jars/wars.
> 
> -----Original Message-----
> From: Phillip Morelock [mailto:subscriptions@phillipmorelock.com]
> Sent: May 29, 2002 11:24 PM
> To: Tomcat Users List
> Subject: Re: STATUS 500 - Unable to compile class for JSPNote
> 
> 
> import the class by making this the top line in your jsp:
> 
> <%@ page language="java" contentType="text/html"
> import="ListMessagesTag" %>
> 
> The real answer is that you should take some time to learn about
> packages and jars, but for just getting started, etc., the above
> *should* fix your current problem.  Tomcat is looking for your class in
> its default JSP package scope, org.apache.jsp.* .  Explicitly importing
> the class gets around this.
> 
> To learn about packages:
> http://java.sun.com/docs/books/tutorial/java/interpack/packages.html
> 
> To learn about jars: http://java.sun.com/docs/books/tutorial/jar/
> 
> cheers and have fun,
> fillup
> 
> 
> On 5/29/02 10:04 PM, "Trenton D. Adams" <trent.nospam@telusplanet.net>
> wrote:
> 
>> I get the following error and I have no idea how to fix it.  I'm
>> attempting to get the javamail IMAP example going, but it doesn't want
> 
>> to work.  I've had to modify several files and it still won't work.
>> 
>> I understand that this has to do with a program that has nothing to do
> 
>> with tomcat, but I don't understand the errors below.  So, I was
>> hoping the TomCat Developers could help! :)
>> 
>> Now the funny thing is that I don't have a class that correspond to
>> org.apache.jsp.ListMessagesTag.  I do have a ListMessagesTag class,
>> but not org.apache.jsp.ListMessagesTag.
>> 
>> After the error is messageheaders.jsp from line 65 to 98.
>> 
>> 
>> Misc Details
>> JDK1.4.0 final
>> Tomcat 4.0.3
>> 
>> 
>> 
>> Apache Tomcat/4.0.3 - HTTP Status 500 - Internal Server Error
>> ----------------------------------------------------------------------
>> --
>> --------
>> 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 
>> org.apache.jasper.JasperException: Unable to compile class for
> JSPNote:
>> sun.tools.javac.Main has been deprecated.
>> 
>> An error occurred between lines: 65 and 67 in the jsp file:
>> /messageheaders.jsp Generated servlet error:
>> 
> C:\jakarta-tomcat-4.0.3\work\localhost\javamail\messageheaders$jsp.java:
>> 72: Class org.apache.jsp.ListMessagesTag not found.
>>               ListMessagesTag _jspx_th_javamail_listmessages_0 = new
>> ListMessagesTag();
>>               ^
>> 
>> An error occurred between lines: 65 and 67 in the jsp file:
>> /messageheaders.jsp Generated servlet error:
>> 
> C:\jakarta-tomcat-4.0.3\work\localhost\javamail\messageheaders$jsp.java:
>> 72: Class org.apache.jsp.ListMessagesTag not found.
>>               ListMessagesTag _jspx_th_javamail_listmessages_0 = new
>> ListMessagesTag();
>>                                                                      ^
>> 
>> An error occurred between lines: 65 and 67 in the jsp file:
>> /messageheaders.jsp Generated servlet error:
>> 
> C:\jakarta-tomcat-4.0.3\work\localhost\javamail\messageheaders$jsp.java:
>> 87: Class org.apache.jsp.MessageInfo not found.
>>                             MessageInfo msginfo = null;
>>                             ^
>> 
>> An error occurred between lines: 65 and 67 in the jsp file:
>> /messageheaders.jsp Generated servlet error:
>> 
> C:\jakarta-tomcat-4.0.3\work\localhost\javamail\messageheaders$jsp.java:
>> 88: Class org.apache.jsp.MessageInfo not found.
>>                             msginfo = (MessageInfo)
>> pageContext.findAttribute("msginfo");
>>                                        ^
>> 
>> An error occurred at line: 83 in the jsp file: /messageheaders.jsp
>> Generated servlet error:
>> C:\jakarta-tomcat-4.0.3\work\localhost\javamail\messageheaders$jsp.jav
>> a:
>> 131: Variable msginfo may not have been initialized.
>>                             out.print( msginfo.getDate() );
>>                                        ^
>> 5 errors, 1 warning
>> 
>> at
>> org.apache.jasper.compiler.Compiler.compile(Compiler.java:285)
>> at
>> org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:552)
>> at 
>> org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary
>> (J
>> spServlet.java:177)
>> at
>> 
> org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServle
>> t.java:189)
>> at
>> 
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:382)
>> at
>> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:474)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>> at
>> 
> org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatc
>> her.java:683)
>> at
>> 
> org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDisp
>> atcher.java:431)
>> at
>> 
> org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispat
>> cher.java:355)
>> at FilterServlet.doGet(FilterServlet.java:85)
>> 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(Applica
>> tionFilterChain.java:247)
>> at
>> 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
>> erChain.java:193)
>> at
>> 
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
>> e.java:243)
>> at
>> 
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja
>> va:566)
>> at
>> 
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
>> 72)
>> at
>> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
>> at
>> 
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
>> e.java:190)
>> at
>> 
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja
>> va:566)
>> at
>> 
> org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.ja
>> va:246)
>> at
>> 
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja
>> va:564)
>> at
>> 
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
>> 72)
>> at
>> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
>> at
>> 
> org.apache.catalina.core.StandardContext.invoke(StandardContext.java:234
>> 3)
>> at
>> 
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
>> :180)
>> at
>> 
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja
>> va:566)
>> at
>> 
> org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherVa
>> lve.java:170)
>> at
>> 
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja
>> va:564)
>> at
>> 
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
>> :170)
>> at
>> 
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja
>> va:564)
>> at
>> 
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468
>> )
>> at
>> 
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.ja
>> va:564)
>> at
>> 
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
>> 72)
>> 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.ja
>> va:566)
>> at
>> 
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
>> 72)
>> at
>> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
>> at
>> 
> org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.j
>> ava:1012)
>> at
>> 
> org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:
>> 1107)
>> at java.lang.Thread.run(Thread.java:536)
>> 
>> ----------------------------------------------------------------------
>> --
>> --------
>> 
>> 
>> 
>> messageheaders.jsp lines 65-98
>> 
>> <javamail:listmessages
>> id="msginfo"
>> folder="folder">
>> <%-- from --%>
>> <tr valign=middle>
>> <td width="25%" bgcolor="ffffff">
>> <font face="Arial,Helvetica">
>> <% if (msginfo.hasFrom()) { %>
>> <%= msginfo.getFrom() %>
>> </font>
>> <% } else { %>
>> <font face="Arial,Helvetica,sans-serif">
>> Unknown
>> <% } %>
>> </font></td>
>> <%-- date --%>
>> <td nowrap width="15%" bgcolor="ffffff">
>> <font face="Arial,Helvetica">
>> <%= msginfo.getDate() %>
>> </font></td>
>> <%-- subject & link --%>
>> <td bgcolor="ffffff">
>> <font face="Arial,Helvetica">
>> <a href="messagecontent?message=<%= msginfo.getNum() %>">
>> <% if (msginfo.hasSubject()) { %>
>> <%=    msginfo.getSubject() %>
>> <% } else { %>
>> <i>No Subject</i>
>> <% } %>
>> </a>
>> </font></td>
>> </tr>
>> </javamail:listmessages>
>> 
>> 
>> --
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