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Doubt about native query

 
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Good afternoon!
I�ve downloaded the o'reilly ejb 3.0 book's example code. I was running the source code related to native sql queries when I got a ClassCastException. The snippet source code is the following :

Cruise Entity:


Query call:

(The same code can be found on page 623 and 624 of o'reilly book)

The ClassCastException happens in:


If the result�s index is changed, the application works correctly.



How can I justify it?
Thanks in advance!
 
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Cruise comes first, so as you said, it should be result[0], not result[1].
 
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