Unit Test using persistence bad unit code

In the middle of learning Maven, I created a simple application in which I use JPA (Java Persistence 1.0.2) with EclipseLink implementation (2.0.2).

Note: This is a managed Application environment. So I manually order the EntityManager lifecycle.

The persistence.xml file used by the main source code is different from one that uses the unit test code. Main code uses an Oracle DB and test code uses a Derby in memory.
Running the unit tests has been updated the Oracle DB (!) and I eventually managed to fix this in the XML files using two units of persistence.

However, I do not understand why that corrects the problem. I manually create and arrest those responsible for the entity, and they do not work at the same time. I'm sure that Maven (or how I've implemented) is not waste resources (XML files). In fact, looking at Maven debug output, I can see that it uses the XML file for the unit tests.

Could someone enlighten me please?

You have two persistence.xml files on your classpath? If so and they contain the same name for their respective persistence units, you should receive a warning or error as they must have unique names. There is no way of knowing which you want to access otherwise.

Best regards
Chris

Tags: Fusion Middleware

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