concurrent access problem in tomcat

[Inesh Hettiarachchi]

hi everyone
im having a problem when running servlets in tomcat my application use servlets for processing and jsp for displaying i use requestdispatcher from the servlet to call the jsp and other servlets the issue comes when there is two people using the application the jsps get switched asothing like
A user gets B users screen with the values and i cant figure out the problem

[Sarath Mohan]

This is nothing to do with Tomcat. This is due the problem in user Management. How do you identfy users at Server side?

[Inesh Hettiarachchi]

well the first servlet runs a validation program then give access to other servlets it dosent happen in other servlets

[Sarath Mohan]

Make your user validation program thread safe. May be a simple method needs to be synchronised which identifies the valid user and his/her pages.

Any othe ideas?
Regards