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Jsp implicit objects

 
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which implicit object is NOT available to the jsp page?
<%page isErrorPage='false' session='false' isThreadSafe='false' %>
1) page
2) pageContext
3) session
4) exception
I have confusion between opinion 3 and opinion 4. Please guide.
 
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I thought they both were. What exam/mock is this question from?

Also note that it is bad practice to reference any of those implicit objects directly. Using expression language, you reference objects in the session not the session per se.
 
Gurukant Desai
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Thanks Jeanne for your guidance.

This question is from my company's exam.
 
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Gurukant Desai wrote:which implicit object is NOT available to the jsp page?
<%page isErrorPage='false' session='false' isThreadSafe='false' %>
1) page
2) pageContext
3) session
4) exception
I have confusion between opinion 3 and opinion 4. Please guide.



Ans: 'exception'.
Reason: implicit object 'exception' is accessible only in error page(page configured for 'error page')
 
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I realise that this is a zombie thread recently resurrected, but just to follow up on the answer from Gurukan

When isErrorPage is false it does not create the implicit variable: exception

Why is the answer not "3" session?
The page directive also specifies session='false'

Surely by the same logic, the session object is available only in a page configured for a session?  

Here is a test page.


Compare what happens with various values of true/false for the appropriate page directives to see what is happening.

 
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