How are you including your jar file? Is it located under
'standalone/configuration/providers'? Or did you create a module? If you
created a module be sure to include 'javax.persistence.api' as a
dependency. That was an issue I ran into, making sure I included the
correct dependencies for my module.
Tristan
On Mon, Aug 24, 2015 at 10:33 AM, Libor Krzyžanek <lkrzyzan(a)redhat.com>
wrote:
Hi there,
within my listener factory's postInit method I’m creating a separate
thread that needs to run a sql query by using entity manager from JPA
provider.
In thread I do
KeycloakModelUtils.runJobInTransaction(sessionFactory,
new KeycloakSessionTask() {
@Override
public void run(KeycloakSession session) {
…
EntityManager em =
session.getProvider(JpaConnectionProvider.class).getEntityManager();
TypedQuery<UserEntity> query = em.createQuery(
"select u from UserEntity u where u.realmId = :realmId order by
u.username", UserEntity.class);
Unfortunately I got java.lang.NoClassDefFoundError:
javax/persistence/EntityManager
I tried to set various class loaders via
thread.setContextClassLoader(DefaultJpaConnectionProviderFactory.class.getClassLoader());
but with no success.
I’m running this on EAP 6.4.
What is the proper way how to retrieve entity manager for running custom
queries?
Thanks,
Libor Krzyžanek
jboss.org Development Team
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