final String[] queries = {
                "from " + I.class.getName(),
                "from " + I.class.getName() + " where displayName is null",
                "from " + I.class.getName() + " i",
                "from " + I.class.getName() + " i where i.displayName is null",
                "select i from " + I.class.getName() + " i",
                "select i from " + I.class.getName() + " i where i.displayName is null",
                "select displayName from " + I.class.getName(),
                "select i.displayName from " + I.class.getName() + " i",
                "select i.displayName from " + I.class.getName() + " i where i.displayName is null",
        };
        for (String query : queries) {
            try (final var session = sessionFactory.openSession()) {
                session.createQuery(query).list();
            }
        }

public interface I {
    String getDisplayName();
}

public class A implements I {
    private Long id;
    private String displayName;
...
}

public class B implements I {
    private Long id;
    private String displayName;
...
}

<hibernate-mapping><class name="model.A" table="A"><id name="id" type="long" column="id"><generator class="native"/></id><property name="displayName" type="string" column="display_name"/></class></hibernate-mapping>