Changed tomcat instance: got Cannot forward after response has been commi

I have a web application that has been running correclty in production for two years. I made a change and testing it in my own Tomcat server. Then I rebuilt the war and put it on a different tomcat instance on the same box. The application runs correclty except that a few database records cause a JSP page to stop rendering in the middle of displaying. THe log reports

Cannot forward after response has been committed

I can't figuer it out. THe data in Informix looks reasonable as far as I can tell. Since other records from the same table work fine in my testing, I can't figure tihs out. I executed the same code for other records (it's info on a specific section of a class at my university). What could possbly cause the JSP to stop rendinerg partway through? I used a very similar record in the same program built for my own Tomcat instance without a problem . It's when I select this record on this other instance of Tomcat that it fails. Any sugguestions? That's too weird and I've never been good at tracking down configuration problems.

I should add that although this data was not a problem in my own tomcat installation yesterday, now that this error has happeend in the other tomcat instance the same data is not causing an exception but is failing in that the data is not being displayed correctly . It's as though something about this record makes it unviewable/undisplayable by the JSP. Thanks for any ideas.

[1461 byte] By [drkldlitwaka] at [2007-11-14]
# 1

What could be causing it? If you believe the error message then forwarding to another page is causing it. I find it a good policy to start by believing the error messages.

Now you may review your code and see that it isn't forwarding to anything. But you mentioned database records; is it possible that an exception is being thrown and it's trying to forward to your error page?

DrClapa at 2007-7-11 > top of java,Enterprise & Remote Computing,Web Tier APIs...