Hi Henning, First, it's recommended that you don't use EntityManager directly in your RealmResourceProvider, but rather create a facade class to encapsulate JPA operations. examples/providers/domain-extension is a nice example of the above (look for ExampleService and its implementation). Second, generally you should retrieve an EntityManager before each new transaction. As long as it's in a local variable, it will be finalized and closed automatically, so normally you don't need to bother. Cheers, Dmitry Telegin CTO, Acutus s.r.o. Keycloak Consulting and Training Pod lipami street 339/52, 130 00 Prague 3, Czech Republic +42 (022) 888-30-71 E-mail: info(a)acutus.pro On Fri, 2018-07-27 at 10:17 +0200, Henning Waack wrote: > Hi. > > I am implementing a RealmResourceProvider (KC 4.0) in which I use an > EntityManager provided by the KeycloakSession to access the KC DB: > > EntityManager em = > ((KeycloakSession)session).getProvider(JpaConnectionProvider.class). getEntityManager(); > > In my class which extends > org.keycloak.services.resource.RealmResourceProvider and uses this > EntityManager, do I have to close the EM instance after using it? Or do I > have to close it in my RealmResourceProviderFactory.close() method where I > obtain it from the session? > > Thanks & greetings > > Henning > _______________________________________________ > keycloak-user mailing list > keycloak-user(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/keycloak-user