My session is getting null

[Jorge Walendowsky Filho <wf...@sefin.pb.gov.br>]

Can anyone explain me how a session object becomes null after I use it on the 
same page and don't reassign its value to null. 

I'm using the JBoss 3.2.3 in HP-UX 11 on the server side and Internet 
Explorer 5.5+ and Windows 2k Professional on the client side. 

Sample code: 
<% 
Object firstAttribute = session.getAttribute("firstAttribute"); 
%> 
// A bit of html. 
<% 
Object secondAttribute = session.getAttribute("secondAttribute"); 
%> 

On the second call to session.getAttribute, I got a NullPointerException. 
How? Why? 

Jorge Walendowsky Filho 
SCBCD - SCJP

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