Описание тега session-scope

A state of the Java bean that holds it during HTTP session. It allows user interaction with a web application across multiple HTTP requests. This scope is defined under (JSR 299) specification. A session scope gives a bean a contextually-defined life-cycle, which ends with the end of the HTTP session. A session-scoped bean is automatically created when needed and automatically destroyed when the context in which it was created ends. Moreover, its state is automatically shared by any clients that execute in the same context.