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From janek <>
Subject Re: Subclasses instances and query
Date Tue, 14 Aug 2007 09:59:16 GMT

I tryed latest 1.0 and problem is still there. I also tryed HSQLDB and it
have the same problem. 

And problem is not definitely on my machine, I reproduced this bug on
another computer by modifing HelloJpa sample which is comming with OpenJPA. 

As I wrote, logs and source codes are here:


janek wrote:
> Hi Craig,
> In attachment is entire Eclipse project. Just add dependencies and
> enhancer agent. It is running on Derby.
> The catch is that you must completely shut down EntityManager and Derby to
> reproduce this problem.
> First run Fill main method, it will create database and put two Audi
> instances there. After that it makes two queries which show that problem
> does not appear here. 
> ie: "SELECT c FROM Car c" returns two Audi instances how it should be
> After thet run Test main method. It will make two same queries, but it
> does not return Audi, but Car. 
> Full log from my machine is attached. 
> Jan
> Fill.log 
> Test.log 

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