How to check that ObjectDb licenses are activated?

Hi Support,

I have added license keys to objectDb.conf file and according to https://www.objectdb.com/forum/1384 I tried to check the activation status using following code

EntityManagerFactory emf = Persistence.createEntityManagerFactory("objectdb:myDbFile.odb" );
boolean isRegistered = emf.createEntityManager().createQuery("objectdb activation", boolean.class).getSingleResult();

But for v2.8.4 it's always returns FALSE. Please provide information how to programmatically could be checked license status?

Are you sure version 2.8.4 is different from other versions?

Activation often fails because the activation key is set in a different configuration file than the one that is actually used by ObjectDB.