login leads to j_security_check error page

I am working on jsp along with tomcat server.I am using container managed security and jdbcrealm configuration. In the login form, I am required to submit to j_security_check. I am able to successfully login.

After that, each time I logout using session.invalidate() and I try to access protected site again, application will show the login screen but after clicking login it just reloads the login page instead of sending me to the protected page. If I reload the login page it will give me access to the page I wanted. If i fill in user/pass and hit login a 2nd time it shows:

The requested resource (/WebApplication6/secureUser/j_security_check) is not available.

When I typed incorrect user and password everything works good, I'm always redirected to appropriate error page. I've even tried setting no cache headers - no results

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[ April 29, 2007: Message edited by: piotrus ]

"piotrus",

There aren't many rules that you need to worry about here on the Ranch, but one that we take very seriously regards the use of proper names. Please take a look at the JavaRanch Naming Policy and adjust your display name to match it.

In particular, your display name must be a first and a last name separated by a space character, and must not be obviously fictitious.

Thanks!
bear
JavaRanch Sheriff

I'm sorry - my mistake

. I've just correct my display name. It should be good now!

Ok, let's back to the topic. What is wrong in my application??