@Entity("users")
public class User{

    private String username = null;

    private String password = null;
}

{
    "email": "xy@test.com",
    "password": "abc"
}

{
    "usersettings": {
        "email": "xy@test.com",
        "password": [
                    "abc", "cde", "efg"
                     ]
     }
}

@Entity("users")
@Converters("MyUserConverter.class")   <-- this does NOT WORK!
public class User{

    private String email = null;

    private String password = null;
}

@Entity("users")

public class User{

    private String email = null;

    @Converters("MyCustomTypeConverter.class")   <-- this would work, but does not help in my case!
    private MyCustomType password = null;
}