I think AnnotatedElementMetaDataLoader class is missing implementation:
e.g.
I get top level MetaDataRetrieval for current bean instance.
I then check for each method on top level's MetaDataRetrieval with getComponentMetaDataRetrieval.
And I would then expect to check for method's parameters ComponentMetaDataRetrieval on method's MetaDataRetrieval.

The code that's missing is:

 public MetaDataRetrieval getComponentMetaDataRetrieval(Signature signature)
 {
 if (annotated instanceof Method)
 {
 if (signature instanceof MethodParametersSignature)
 {
 Method method = (Method)annotated;
 Annotation[][] paramAnnotations = method.getParameterAnnotations();
 MethodParametersSignature sig = (MethodParametersSignature) signature;
 return new SimpleMetaDataLoader(paramAnnotations[sig.getParam()]);
 }
 }