How to use

org.keycloak.connections.jpa.PersistenceExceptionConverter

constructor

public static EntityManager create(EntityManager em) {
  return (EntityManager) Proxy.newProxyInstance(EntityManager.class.getClassLoader(), new Class[]{EntityManager.class}, new PersistenceExceptionConverter(em));
}

public static EntityManager create(EntityManager em) {
  return (EntityManager) Proxy.newProxyInstance(EntityManager.class.getClassLoader(), new Class[]{EntityManager.class}, new PersistenceExceptionConverter(em));
}