final Method collectionAccessorMethod = findMethod(Customer.class, "getOrders");
final Method removeFromMethod = findMethod(CustomerEx.class, "removeFromOrders", new Class[] { Order.class });
final Method validateRemoveFromMethod = findMethod(CustomerEx.class, "validateRemoveFromOrders", new Class[] { Order.class });
facetFactoryForAccessor.process(new ProcessMethodContext(CustomerEx.class, null, null, collectionAccessorMethod, methodRemover, facetedMethod));
facetFactoryForHelpers.process(new ProcessMethodContext(CustomerEx.class, null, null, collectionAccessorMethod, methodRemover, facetedMethod));
final Facet facet = facetedMethod.getFacet(CollectionRemoveFromFacet.class);
assertNotNull(facet);
assertTrue(facet instanceof CollectionRemoveFromFacetViaMethod);
final CollectionRemoveFromFacetViaMethod collectionRemoveFromFacetViaMethod = (CollectionRemoveFromFacetViaMethod) facet;