IllegalStateException

[Rajnish Bhaskar <r....@compserv.gla.ac.uk>]

Hi folks,
I'm using Tomcat 3.2.3 as a service on Windows NT.  I've only 
started really 'using' it recently (by that I mean that I've only 
recently had projects go live.  Until now, it's just been used for 
development).

I've recently started seeing the following stack trace dump on the 
screen after it's been used for a while:

java.lang.IllegalStateException: Can't happen - classname is null, 
who added this ?
	at 
org.apache.tomcat.core.ServletWrapper.loadServlet(ServletWrapper.
java:261)
<<snip>>
org.apache.tomcat.facade.HttpServletResponseFacade.sendRedire
ct(HttpServletResponseFacade.java:228)
	at iteu.TutorLogin.doPost(TutorLogin.java:76)
<<snip>>

The last line there is from my app.  This line redirects a tutor to 
their appropriate homepage and looks like this:

res.sendRedirect(iteu.Strings.tmMainPage);

This seems to be an intermittant problem.  If I shut down and 
restart Tomcat it goes away.  Does anybody have any idea what 
might be causing the problem, or is it too general?

TIA,
Raj.

-- 
Rajnish Bhaskar
r.bhaskar@compserv.gla.ac.uk, http://lordofthemoon.com
IT Education Unit, University of Glasgow
http://www.iteu.gla.ac.uk/
--
Yes, but what's it *really* all about, then, when you get down to it, I *mean* really
	-- Terry Pratchett (Didactylos, Small Gods).