I've got 4 applications, they share some common libraries. From some time I face following problem. If I am logged (I save logging info in session bean) into 2 of them in the same browser (cookie right?) after some actions, usually maximum 2 pages change I'm logged off one or both of them.
What can be the problem? I do not use "invalidate" anywhere except logout functions that I never use when got the problem.
If I could shoot, I'd say the problems started when I added those classes to my shared library:
+ entry in web.xml
All 4 applications use them to display custom error pages.