OpenJPA 3 and Karaf 4.2

[Matteo Rulli]

I tried to put together a project (here 
<https://github.com/mrulli/myjpaservice>: 
https://github.com/mrulli/myjpaservice) to test how OpenJPA 3 and Karaf 4.2.x 
play together but I get the following error:

 javax.naming.NoInitialContextException: Need to specify class name in 
environment or system property, or as an applet parameter, or in an application 
resource file:  java.naming.factory.initial
        at 
javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662) ~[?:?]
        at 
javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:313) ~[?:?]
        at 
javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:350) 
~[?:?]
        at javax.naming.InitialContext.lookup(InitialContext.java:417) ~[?:?]
        at 
org.apache.openjpa.ee.RegistryManagedRuntime.getTransactionManager(RegistryManagedRuntime.java:63)
 ~[?:?]
        at 
org.apache.openjpa.ee.AutomaticManagedRuntime.getTransactionManager(AutomaticManagedRuntime.java:171)
 ~[?:?]
        at 
org.apache.openjpa.kernel.AbstractBrokerFactory.syncWithManagedTransaction(AbstractBrokerFactory.java:728)
 ~[?:?]
        at org.apache.openjpa.kernel.BrokerImpl.initialize(BrokerImpl.java:399) 
~[?:?]
        at org.apache.openjpa.kernel.BrokerImpl.initialize(BrokerImpl.java:325) 
~[?:?]
        at 
org.apache.openjpa.kernel.AbstractBrokerFactory.initializeBroker(AbstractBrokerFactory.java:228)
 ~[?:?]
        at 
org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:212)
 ~[?:?]
        at 
org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:154)
 ~[?:?]
        at 
org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:246)
 ~[?:?]
        at 
org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:162)
 ~[?:?]
        at 
org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:152)
 ~[?:?]
        at 
org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:58)
 ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
~[?:?]
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 ~[?:?]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:?]
        at 
org.apache.aries.jpa.container.impl.AriesEntityManagerFactoryBuilder$2.invoke(AriesEntityManagerFactoryBuilder.java:395)
 ~[?:?]
        ... 58 more

A similar project works fine with OpenJPA 2.4.1 and Karaf 4.1.

I saw an example project 
<https://github.com/apache/karaf/blob/master/examples/karaf-jpa-example/karaf-jpa-example-features/src/main/feature/feature.xml>
 in Karaf repo but the openjpa case seems unsupported/commented out. Is openjpa 
3 supported in Karaf 4.2?

Thank you for your help,

Matteo