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I rearranged the config to use a datasource instead and the error was more clear at that point. I had forgotten the Oracle dependency.

Sorry, I should have been more specific. I get it when I run a unit test. I've included the trace from the error below:

org.springframework.beans.factory.BeanCreationException: Error creating bean...

I have a sample application that works fine as a plain old java project in Eclipse but when I set up a Maven project for it, I'm getting a "No Persistence provider for EntityManager named...

It looks like I was missing:

xmlns:tx="http://www.springframework.org/schema/tx"

I have the following spring config:

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"...