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container generated *_jsp.java has session call

Ranch Hand
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I saw that container generated *_jsp.java file has a call for session

as per the book getSession() == getSession(true).

If I have done lot of validation in my code to ensure that the session I am using is an existing session and now new sesison shall help complete the request this call in in jsp makes all my efforts void.

any suggestions on how to specify to jsp that I want to use existing session otherwise jsp shall throw exception if session is a newly created session.
pie sneak
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getSession(true) will only create a new session if one does not already exist. In your scenario you say a session already exists, therefore the call to getSession() [getSession(true)] will simply return the existing session.
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