Show us the exception how it appears to you.

> ----------
> De:   Jay Glanville[SMTP:[EMAIL PROTECTED]
> Responder:    Tomcat Users List
> Enviada:      quarta-feira, 7 de janeiro de 2004 10:20
> Para:         'Tomcat Users List'
> Assunto:      Problems running pre-compiled JSP classes when in
> subdirectories
> 
> I originally posted this question back in mid-December, but without any
> responses.  In the hopes that someone will have a hit or a solution, I'm
> reposting the question again.
> 
> 
> I'm having a problem when I try to use my pre-compiled JSP files: I
> receive a NoClassDefFoundError exception.  Here's what I'm doing ...
> 
> I have pre-compiled my JSP classes using the JspC plugin from ant.  My
> files compile without complaint.  However, when I try to access the
> files through tomcat, I receive some NoClassDefFoundError exceptions.
> But these exceptions only occur when I'm accessing JSPs in the
> subdirectories off of the web root.
> 
> Here's my application's background.  I have two files:
>   <WEBROOT>/index.jsp
>   <WEBROOT>/dir/index.jsp
> The contents of the two files are just simple HTML.  I precompiled the
> JSP using the JspC ant target, then compiled using javac.  Finally, I
> created a context pointing the work directory to the location of my java
> and class files.  When I tried to access the first file
> (http://localhost/context/index.jsp) everything went fine.  However,
> when I tried to access the second file
> (http://localhost/context/dir/index.jsp), I received the
> NoClassDefFoundError.  The log file looks like this:
> 
> 2003-12-15 20:11:25 StandardWrapperValve[jsp]: Servlet.service() for
> servlet jsp threw exception
> javax.servlet.ServletException: org/apache/jsp/index_jsp (wrong name:
> org/apache/jsp/dir/index_jsp)
>       at
> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)
>       at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>         [deleted ...]
> ----- Root Cause -----
> java.lang.NoClassDefFoundError: org/apache/jsp/index_jsp (wrong name:
> org/apache/jsp/dir/index_jsp)
>       at java.lang.ClassLoader.defineClass0(Native Method)
>       at java.lang.ClassLoader.defineClass(ClassLoader.java:537)
>       at java.lang.ClassLoader.defineClass(ClassLoader.java:448)
>       at
> org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:215)
>         [deleted]
> 
> Now, according to my research on this mailing list, the most frequent
> reason for a NoClassDef error is capitalization.  However, this isn't
> the case in my situation as the two package names are completely
> different: org/apache/jsp/index_jsp vs. org/apache/jsp/dir/index_jsp.
> 
> I'm using Tomcat 4.1.29.
> 
> Any suggestions on how to alleviate this situation would be greatly
> appreciated.
> 
> Thanks
> 
> JDG
> 
> PS: I should also point out that I have tried the recommended way of
> precompiling my JSP by converting to servlets
> (http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jasper-howto.html#Web%2
> 0Application%20Compilation).  However, I have a problem with this
> method: it makes it that much harder to patch my application.  With the
> non-servlet approach, I just simply deliver the modified JSP files. With
> the servlet approach, I need to deliver the classes, plus ensure that
> the web.xml is correct (add new entries, remove old ones, modify where
> needed), plus restart the context.
> 
> 
> 
> 
> --
> Jay Glanville
> 
> 
> 
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