MutableMetaDataLoader loader1 = createTestMutableMetaDataLoader(testKey1);
assertAddMetaDataRetrieval(repository, loader1, null);
MutableMetaDataLoader loader1Different = createTestMutableMetaDataLoader(testKey1Different);
assertAddMetaDataRetrieval(repository, loader1Different, null);
MetaDataRetrieval retrieval = repository.getMetaDataRetrieval(testKey1);
assertTrue(loader1 == retrieval);
retrieval = repository.getMetaDataRetrieval(testKey1Different);
assertTrue(loader1Different == retrieval);
}