This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
When you say creating 2 sessions in a JSP, I believe you mean creating 2 session for a request. This is not possible. At any given point, a request can hold only 1 session [even though the servlet container creates multiple session's to handle multiple requests].