Re: How to use Hibernate locally in development mode

Sounds like datanucleus is still in your classpath.

This error (from googling it) looks like a DataNucleus message.

Rob

On Thu, Dec 6, 2012 at 12:31 PM, Jan <janpumpe@googlemail.com> wrote:

Hi,

i'm trying to get hibernate with my gwt-application to run. I followed this tutorial and the example works on app engine:

https://developers.google.com/appengine/articles/using_hibernate

But if i try to run this locally in eclipe, i get the following error.

Caused by: javax.persistence.PersistenceException: No persistence providers available for "com.google.cloudsqldemo.jpa" after trying the following discovered implementations: NONE

at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:180)

at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:70)

at de.jan.server.GreetingServiceImpl.greetServer(GreetingServiceImpl.java:50)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java:115)

at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:561)

... 38 more

Can some give me some advice how i can get this running locally as well?

Thanks and best regards

Jan