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Using an ArrayList Assigned to a Session Attribute

 
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I am assigning an ArrayList<String> to a session attribute:



Now in another servlet I want to know what is the next index:

 
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I really hate to see code like this


Suppose you got an NPE - how would you figure out what is wrong?

Just go ahead and code the individual steps so you can check the status of each.

Bill
 
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How does that even compile? HttpSession.getAttribute returns Object, not List.
 
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