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Exception in thread "main" java.lang.ClassCastException: java.lang.Integer cannot be cast to chandra

 
Greenhorn
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[Added code tags - see UseCodeTags]
 
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Hi Chandrashekhara. Welcome to the Ranch!

You seem to have forgotten to ask a question? And if you're asking about why the exception occurs, it's really helpful if you tell us which line it happens on (which the exception message tells you). However, as a quick hint: your code assumes that query returns Person objects. Does it?
 
Consider Paul's rocket mass heater.
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