RE: Strange NullPointerException

I'm using Tomcat 4.1.18

I may have figured out what was causing the problem.  I have a custom 
Servlet filter on my existing
webapp that does what amounts to URL rewriting on the HttpServletRequest 
object by moving
portions of the URL path to the query string as parameters.  I commented 
out the filter and everything
started to work OK.  Now this is a little strange because I only wrap 
the request and do not touch
the response in my filter.  And it seems it was the response that was 
causing the problem, right?

With Maverick producing PDFs for me I can actually do away with this 
filter.  The reason for having
it in the first place is to help a web spider archive portions of the 
site and hence the need to mess
around with this URL rewriting business.  So, I think I may be in the 
clear but I'm still curious why
it was causing a problem in the first place.

Tim

>   
>Subject: RE: [Mav-user] Strange NullPointerException
>Date: Wed, 19 Feb 2003 14:44:11 -0800
>From: "Schnitzer, Jeff" <[email protected]>
>To: <[email protected]>
>Reply-To: [email protected]
>
>This happens when the previous step (or view) never called
>HttpServletResponse.getOutputStream() or getWriter().  I believe I
>recently checked in a patch that prints a better error message in this
>case.
>
>Maybe the jsp page is misnamed?  I would normally expect that to cause
>getRequestDispatcher() to return null, but it would explain the problem.
>What container/version are you using?
>
>Jeff Schnitzer
>[email protected]
>
>  
>



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