 <p>Have you tried <code>getRelatedEntities()</code> instead of <code>getRelatedEntity()</code>. From your explanation I understand that A has a collection of B, so try</p> <p><code>List&lt;OEntity&gt; bsOEntities = a.getLink("bs", OLink.class).getRelatedEntities();</code></p> <p>It works for me.</p>