I have a number of JUnit tests in my project that test my DataStore
services. For the past two years, they've been working just fine and I've
been able to successfully insert, query, and delete entities through unit
tests. A couple of days ago I upgraded to App Engine 1.7 and all of a
sudden all of my tests throw a NullPointerException because
Persistence.createEntityManagerFactory("transactions-optional") returns
null. My persistence.xml file contains the following configuration which
like I said, has worked perfectly up until the upgrade.
<persistence-unit name="transactions-optional">
<provider>
org.datanucleus.store.appengine.jpa.DatastorePersistenceProvider</provider>
<properties>
<property name="datanucleus.NontransactionalRead" value="true"/>
<property name="datanucleus.NontransactionalWrite" value="true"
/>
<property name="datanucleus.ConnectionURL" value="appengine"/>
</properties>
</persistence-unit>
Any idea what could have changed in the upgrade?
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