Interrmittant dispaly of error message on JSP Page

Question

Hi ,
I am developing an application using JSP and servlets. I ma having a peculiar issue with it.
I have few links on a JSP page. When a user clicks on the link, its credentials are verified from database and if he is authorised, he will be taken to corresponding link page. Otherwise an error message is dispalyed on the same JSP page.
When user is not authorised, an exception is thrown from backend to UI passing an error code. This error code is extracted in UI and error description for this error code is read from a properties file.
From the servlet I use send.redirect() calls to redirect to the url with error code concatenated at the end of the url.
It is something like this
try {
if(validUser)
//do stuff
response.sendRedirect("abc/xyzServlet");
} catch(Exception ex) {
errid=ex.getErrid();
response.sendRedirect("abc/MainPageServlet?errid=" + errid);
}In the MainPageServlet, i read error properties file and display error desc for that error id.
The problem I am facing is that when an unauthorised user clicks on link repeatedly, he sees the error message intermittently.
But the error id could be seen on the page url appended.
Sometimes I also see IllegalStateException in the logs.
I am using WebSphere server to deploy the application.
Please help me on this, I have spent much time on this and haven't got a clue. Any pointers will be useful.
Thank You,
Priyanshu.
Edited by: galapagos on Feb 28, 2008 10:43 PM
Edited by: galapagos on Feb 28, 2008 10:44 PM

Answer 1

I've tried this and the message still comes up all the time. Have also tried resetting and this doesn't work either. The message appears whether or not it is connected to an accessory (eg speakers). Any further ideas?