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From David Blevins <>
Subject Re: Enhancer annoyance
Date Thu, 15 May 2008 04:57:38 GMT

On May 14, 2008, at 8:32 AM, JimOR wrote:

> David Blevins wrote:
>> One way to verify would be to split your test case into two classes;
>> the TestCase subclass which would do nothing more than setup OpenEJB
>> via the InitialContext and have a test method that delegated to your
>> second class which actually did test.  The idea being the second  
>> class
>> which references the entity classes wouldn't get loaded until after
>> the first class has run and setup the dynamic enhancer.
>> Let us know if that's the case as we can probably document this kind
>> of OpenJPA specific testing technique.
>> -David
> I had the same thought initially and refactored my test classes to  
> extend an
> abstract parent with a @BeforeClass annotation that sets my  
> InitialContext.
> Then I setup lazy bean instantiation in a parent @Before method, and  
> moved
> all @Entity references inside methods annotated with @Test.
> Perhaps the parent test class level @Stateful bean references (which
> reference @Entities) are the culprit?

Could be.  The bean classes themselves wouldn't be the issue but  
likely the entity types are listed in the business interface method  
signatures.  There definitely should be some way to swizzle things  
around so the issue is avoided.

One tricky way might be to put static initializers with "i'm being  
loaded" system.out statements in a few classes.  That may be  
ineffective if the classes are loaded with initialization off --  
Class.forName("foo", false, classLoader) -- but it's worth a quick try.


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